uint32_t SDLScreen::CompileShader(std::string vertexShader, std::string fragmentShader ) {
return loadShader(vertexShader.c_str(), fragmentShader.c_str());
}
void preparePipelines()
{
VkPipelineInputAssemblyStateCreateInfo inputAssemblyStateCI = vks::initializers::pipelineInputAssemblyStateCreateInfo(VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST, 0, VK_FALSE);
VkPipelineRasterizationStateCreateInfo rasterizationStateCI = vks::initializers::pipelineRasterizationStateCreateInfo(VK_POLYGON_MODE_FILL, VK_CULL_MODE_NONE, VK_FRONT_FACE_COUNTER_CLOCKWISE, 0);
VkPipelineColorBlendAttachmentState blendAttachmentState = vks::initializers::pipelineColorBlendAttachmentState(0xf, VK_FALSE);
VkPipelineColorBlendStateCreateInfo colorBlendStateCI = vks::initializers::pipelineColorBlendStateCreateInfo(1, &blendAttachmentState);
VkPipelineDepthStencilStateCreateInfo depthStencilStateCI = vks::initializers::pipelineDepthStencilStateCreateInfo(VK_TRUE, VK_TRUE, VK_COMPARE_OP_LESS_OR_EQUAL);
VkPipelineViewportStateCreateInfo viewportStateCI = vks::initializers::pipelineViewportStateCreateInfo(1, 1, 0);
VkPipelineMultisampleStateCreateInfo multisampleStateCI = vks::initializers::pipelineMultisampleStateCreateInfo(VK_SAMPLE_COUNT_1_BIT, 0);
std::vector<VkDynamicState> dynamicStateEnables = { VK_DYNAMIC_STATE_VIEWPORT, VK_DYNAMIC_STATE_SCISSOR };
VkPipelineDynamicStateCreateInfo dynamicStateCI = vks::initializers::pipelineDynamicStateCreateInfo(dynamicStateEnables.data(), dynamicStateEnables.size(), 0);
std::array<VkPipelineShaderStageCreateInfo, 2> shaderStages;
VkGraphicsPipelineCreateInfo pipelineCI = vks::initializers::pipelineCreateInfo(pipelineLayouts.radialBlur, renderPass, 0);
pipelineCI.pInputAssemblyState = &inputAssemblyStateCI;
pipelineCI.pRasterizationState = &rasterizationStateCI;
pipelineCI.pColorBlendState = &colorBlendStateCI;
pipelineCI.pMultisampleState = &multisampleStateCI;
pipelineCI.pViewportState = &viewportStateCI;
pipelineCI.pDepthStencilState = &depthStencilStateCI;
pipelineCI.pDynamicState = &dynamicStateCI;
pipelineCI.stageCount = shaderStages.size();
pipelineCI.pStages = shaderStages.data();
// Radial blur pipeline
shaderStages[0] = loadShader(getAssetPath() + "shaders/radialblur/radialblur.vert.spv", VK_SHADER_STAGE_VERTEX_BIT);
shaderStages[1] = loadShader(getAssetPath() + "shaders/radialblur/radialblur.frag.spv", VK_SHADER_STAGE_FRAGMENT_BIT);
// Empty vertex input state
VkPipelineVertexInputStateCreateInfo emptyInputState = vks::initializers::pipelineVertexInputStateCreateInfo();
pipelineCI.pVertexInputState = &emptyInputState;
pipelineCI.layout = pipelineLayouts.radialBlur;
// Additive blending
blendAttachmentState.colorWriteMask = 0xF;
blendAttachmentState.blendEnable = VK_TRUE;
blendAttachmentState.colorBlendOp = VK_BLEND_OP_ADD;
blendAttachmentState.srcColorBlendFactor = VK_BLEND_FACTOR_ONE;
blendAttachmentState.dstColorBlendFactor = VK_BLEND_FACTOR_ONE;
blendAttachmentState.alphaBlendOp = VK_BLEND_OP_ADD;
blendAttachmentState.srcAlphaBlendFactor = VK_BLEND_FACTOR_SRC_ALPHA;
blendAttachmentState.dstAlphaBlendFactor = VK_BLEND_FACTOR_DST_ALPHA;
VK_CHECK_RESULT(vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCI, nullptr, &pipelines.radialBlur));
// No blending (for debug display)
blendAttachmentState.blendEnable = VK_FALSE;
VK_CHECK_RESULT(vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCI, nullptr, &pipelines.offscreenDisplay));
// Phong pass
pipelineCI.layout = pipelineLayouts.scene;
shaderStages[0] = loadShader(getAssetPath() + "shaders/radialblur/phongpass.vert.spv", VK_SHADER_STAGE_VERTEX_BIT);
shaderStages[1] = loadShader(getAssetPath() + "shaders/radialblur/phongpass.frag.spv", VK_SHADER_STAGE_FRAGMENT_BIT);
blendAttachmentState.blendEnable = VK_FALSE;
depthStencilStateCI.depthWriteEnable = VK_TRUE;
// Vertex bindings and attributes
std::vector<VkVertexInputBindingDescription> vertexInputBindings = {
vks::initializers::vertexInputBindingDescription(0, vertexLayout.stride(), VK_VERTEX_INPUT_RATE_VERTEX),
};
std::vector<VkVertexInputAttributeDescription> vertexInputAttributes = {
vks::initializers::vertexInputAttributeDescription(0, 0, VK_FORMAT_R32G32B32_SFLOAT, 0), // Position
vks::initializers::vertexInputAttributeDescription(0, 1, VK_FORMAT_R32G32_SFLOAT, sizeof(float) * 3), // Texture coordinates
vks::initializers::vertexInputAttributeDescription(0, 2, VK_FORMAT_R32G32B32_SFLOAT, sizeof(float) * 5), // Color
vks::initializers::vertexInputAttributeDescription(0, 3, VK_FORMAT_R32G32B32_SFLOAT, sizeof(float) * 8), // Normal
};
VkPipelineVertexInputStateCreateInfo vertexInputState = vks::initializers::pipelineVertexInputStateCreateInfo();
vertexInputState.vertexBindingDescriptionCount = static_cast<uint32_t>(vertexInputBindings.size());
vertexInputState.pVertexBindingDescriptions = vertexInputBindings.data();
vertexInputState.vertexAttributeDescriptionCount = static_cast<uint32_t>(vertexInputAttributes.size());
vertexInputState.pVertexAttributeDescriptions = vertexInputAttributes.data();
pipelineCI.pVertexInputState = &vertexInputState;
VK_CHECK_RESULT(vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCI, nullptr, &pipelines.phongPass));
// Color only pass (offscreen blur base)
shaderStages[0] = loadShader(getAssetPath() + "shaders/radialblur/colorpass.vert.spv", VK_SHADER_STAGE_VERTEX_BIT);
shaderStages[1] = loadShader(getAssetPath() + "shaders/radialblur/colorpass.frag.spv", VK_SHADER_STAGE_FRAGMENT_BIT);
pipelineCI.renderPass = offscreenPass.renderPass;
VK_CHECK_RESULT(vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCI, nullptr, &pipelines.colorPass));
}
DeferredShader::DeferredShader() {
/*}
void SpriteShader::loadFromFiles(const char* vertexShader, const char* fragmentShader) {*/
GLuint vertexShaderId = loadShader("Calamity/Shader/pointLight.vert", GL_VERTEX_SHADER);
GLuint fragmentShaderId = loadShader("Calamity/Shader/pointLight.frag", GL_FRAGMENT_SHADER);
/*GLuint vertexShaderId = loadShader(vertexShader, GL_VERTEX_SHADER);
GLuint fragmentShaderId = loadShader(fragmentShader, GL_FRAGMENT_SHADER);*/
programId = glCreateProgram();
glAttachShader(programId, vertexShaderId);
glAttachShader(programId, fragmentShaderId);
glLinkProgram(programId);
// Check for errors
GLint programSuccess = GL_TRUE;
glGetProgramiv(programId, GL_LINK_STATUS, &programSuccess);
if (programSuccess != GL_TRUE) {
printf("Error linking program %d!\n", programId);
printProgramLog(programId);
glDeleteProgram(programId);
programId = 0;
glDetachShader(programId, vertexShaderId);
glDetachShader(programId, fragmentShaderId);
glDeleteShader(vertexShaderId);
glDeleteShader(fragmentShaderId);
return;
}
glDetachShader(programId, vertexShaderId);
glDetachShader(programId, fragmentShaderId);
glDeleteShader(vertexShaderId);
glDeleteShader(fragmentShaderId);
positionLocation = getAttribLocation("in_Position");
projectionMatrixLocation = getUniformLocation("projectionMatrix");
modelViewMatrixLocation = getUniformLocation("modelViewMatrix");
/*dirLightColorLocation = getUniformLocation("directionalLight.color");
dirLightDirectionLocation = getUniformLocation("directionalLight.direction");
dirLightAmbientIntensityLocation = getUniformLocation("directionalLight.ambientIntensity");
dirLightDiffuseIntensityLocation = getUniformLocation("directionalLight.diffuseIntensity");*/
/*dirLightLocation.color = getUniformLocation("directionalLight.base.color");
dirLightLocation.ambientIntensity = getUniformLocation("directionalLight.base.ambientIntensity");
dirLightLocation.diffuseIntensity = getUniformLocation("directionalLight.base.diffuseIntensity");
dirLightLocation.direction = getUniformLocation("directionalLight.direction");*/
pointLightLocation.color = getUniformLocation("pointLight.base.color");
pointLightLocation.ambientIntensity = getUniformLocation("pointLight.base.ambientIntensity");
pointLightLocation.diffuseIntensity = getUniformLocation("pointLight.base.diffuseIntensity");
pointLightLocation.position = getUniformLocation("pointLight.position");
pointLightLocation.attConstant = getUniformLocation("pointLight.attConstant");
pointLightLocation.attLinear = getUniformLocation("pointLight.attLinear");
pointLightLocation.attExponential = getUniformLocation("pointLight.attExponential");
eyeWorldPosLocation = getUniformLocation("eyeWorldPos");
matSpecularIntensityLocation = getUniformLocation("matSpecularIntensity");
matSpecularPowerLocation = getUniformLocation("matSpecularPower");
screenSizeLocation = getUniformLocation("screenSize");
GLint positionTextureLocation = getUniformLocation("positionTexture");
GLint colorTextureLocation = getUniformLocation("colorTexture");
GLint normalTextureLocation = getUniformLocation("normalTexture");
bind();
glUniform1i(positionTextureLocation, 0);
glUniform1i(colorTextureLocation, 1);
glUniform1i(normalTextureLocation, 2);
unbind();
}
ResourceId CResourceManager::loadMaterial(const std::string& file)
{
auto entry = m_materialFiles.find(file);
if (entry != m_materialFiles.end())
{
return entry->second;
}
LOG_DEBUG("Loading material from file %s.", file.c_str());
CIniFile ini;
if (!ini.load(file))
{
LOG_ERROR("Failed to load material file %s as ini file.", file.c_str());
return -1;
}
ResourceId diffuseId = -1;
if (ini.hasKey("diffuse", "file"))
{
// Diffuse texture is RGB format, ignore alpha
diffuseId = loadImage(ini.getValue("diffuse", "file", "error"), EColorFormat::RGB24);
if (diffuseId == -1)
{
LOG_ERROR("Failed to load diffuse texture specified in material file %s.",
file.c_str());
return -1;
}
}
ResourceId normalId = -1;
if (ini.hasKey("normal", "file"))
{
// Normal texture is RGB format
normalId = loadImage(ini.getValue("normal", "file", "error"), EColorFormat::RGB24);
if (normalId == -1)
{
LOG_ERROR("Failed to load normal texture specified in material file %s.", file.c_str());
return -1;
}
}
ResourceId specularId = -1;
if (ini.hasKey("specular", "file"))
{
// Specular texture is grey-scale format
specularId = loadImage(ini.getValue("specular", "file", "error"), EColorFormat::GreyScale8);
if (specularId == -1)
{
LOG_ERROR("Failed to load specular texture specified in material file %s.",
file.c_str());
return -1;
}
}
ResourceId glowId = -1;
if (ini.hasKey("glow", "file"))
{
// Glow texture is grey-scale format
glowId = loadImage(ini.getValue("glow", "file", "error"), EColorFormat::GreyScale8);
if (glowId == -1)
{
LOG_ERROR("Failed to load glow texture specified in material file %s.", file.c_str());
return -1;
}
}
ResourceId alphaId = -1;
if (ini.hasKey("alpha", "file"))
{
// Alpha texture is grey-scale format
alphaId = loadImage(ini.getValue("alpha", "file", "error"), EColorFormat::GreyScale8);
if (alphaId == -1)
{
LOG_ERROR("Failed to load alpha texture specified in material file %s.", file.c_str());
return -1;
}
}
ResourceId customShaderId = -1;
if (ini.hasKey("shader", "file"))
{
// Has custom shader file specified
customShaderId = loadShader(ini.getValue("shader", "file", "error"));
if (customShaderId == -1)
{
LOG_ERROR("Failed to load custom shader file specified in material file %s.",
file.c_str());
return -1;
}
}
ResourceId materialId =
createMaterial(diffuseId, normalId, specularId, glowId, alphaId, customShaderId);
if (materialId == -1)
{
LOG_ERROR("Failed to create material resource id for material file %s.", file.c_str());
return -1;
}
m_materialFiles[file] = materialId;
return materialId;
}
void preparePipelines()
{
VkPipelineInputAssemblyStateCreateInfo inputAssemblyState =
vkTools::initializers::pipelineInputAssemblyStateCreateInfo(
VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST,
0,
VK_FALSE);
VkPipelineRasterizationStateCreateInfo rasterizationState =
vkTools::initializers::pipelineRasterizationStateCreateInfo(
VK_POLYGON_MODE_FILL,
VK_CULL_MODE_NONE,
VK_FRONT_FACE_CLOCKWISE,
0);
VkPipelineColorBlendAttachmentState blendAttachmentState =
vkTools::initializers::pipelineColorBlendAttachmentState(
0xf,
VK_FALSE);
VkPipelineColorBlendStateCreateInfo colorBlendState =
vkTools::initializers::pipelineColorBlendStateCreateInfo(
1,
&blendAttachmentState);
VkPipelineDepthStencilStateCreateInfo depthStencilState =
vkTools::initializers::pipelineDepthStencilStateCreateInfo(
VK_TRUE,
VK_TRUE,
VK_COMPARE_OP_LESS_OR_EQUAL);
VkPipelineViewportStateCreateInfo viewportState =
vkTools::initializers::pipelineViewportStateCreateInfo(1, 1, 0);
VkPipelineMultisampleStateCreateInfo multisampleState =
vkTools::initializers::pipelineMultisampleStateCreateInfo(
VK_SAMPLE_COUNT_1_BIT,
0);
std::vector<VkDynamicState> dynamicStateEnables = {
VK_DYNAMIC_STATE_VIEWPORT,
VK_DYNAMIC_STATE_SCISSOR,
VK_DYNAMIC_STATE_LINE_WIDTH,
};
VkPipelineDynamicStateCreateInfo dynamicState =
vkTools::initializers::pipelineDynamicStateCreateInfo(
dynamicStateEnables.data(),
static_cast<uint32_t>(dynamicStateEnables.size()),
0);
std::array<VkPipelineShaderStageCreateInfo, 2> shaderStages;
VkGraphicsPipelineCreateInfo pipelineCreateInfo =
vkTools::initializers::pipelineCreateInfo(
pipelineLayout,
renderPass,
0);
pipelineCreateInfo.pVertexInputState = &vertices.inputState;
pipelineCreateInfo.pInputAssemblyState = &inputAssemblyState;
pipelineCreateInfo.pRasterizationState = &rasterizationState;
pipelineCreateInfo.pColorBlendState = &colorBlendState;
pipelineCreateInfo.pMultisampleState = &multisampleState;
pipelineCreateInfo.pViewportState = &viewportState;
pipelineCreateInfo.pDepthStencilState = &depthStencilState;
pipelineCreateInfo.pDynamicState = &dynamicState;
pipelineCreateInfo.stageCount = static_cast<uint32_t>(shaderStages.size());
pipelineCreateInfo.pStages = shaderStages.data();
// Prepare specialization data
// Host data to take specialization constants from
struct SpecializationData {
// Sets the lighting model used in the fragment "uber" shader
uint32_t lightingModel;
// Parameter for the toon shading part of the fragment shader
float toonDesaturationFactor = 0.5f;
} specializationData;
// Each shader constant of a shader stage corresponds to one map entry
std::array<VkSpecializationMapEntry, 2> specializationMapEntries;
// Shader bindings based on specialization constants are marked by the new "constant_id" layout qualifier:
// layout (constant_id = 0) const int LIGHTING_MODEL = 0;
// layout (constant_id = 1) const float PARAM_TOON_DESATURATION = 0.0f;
// Map entry for the lighting model to be used by the fragment shader
specializationMapEntries[0].constantID = 0;
specializationMapEntries[0].size = sizeof(specializationData.lightingModel);
specializationMapEntries[0].offset = 0;
// Map entry for the toon shader parameter
specializationMapEntries[1].constantID = 1;
specializationMapEntries[1].size = sizeof(specializationData.toonDesaturationFactor);
specializationMapEntries[1].offset = offsetof(SpecializationData, toonDesaturationFactor);
// Prepare specialization info block for the shader stage
VkSpecializationInfo specializationInfo{};
specializationInfo.dataSize = sizeof(specializationData);
specializationInfo.mapEntryCount = static_cast<uint32_t>(specializationMapEntries.size());
specializationInfo.pMapEntries = specializationMapEntries.data();
specializationInfo.pData = &specializationData;
// Create pipelines
// All pipelines will use the same "uber" shader and specialization constants to change branching and parameters of that shader
shaderStages[0] = loadShader(getAssetPath() + "shaders/specializationconstants/uber.vert.spv", VK_SHADER_STAGE_VERTEX_BIT);
shaderStages[1] = loadShader(getAssetPath() + "shaders/specializationconstants/uber.frag.spv", VK_SHADER_STAGE_FRAGMENT_BIT);
// Specialization info is assigned is part of the shader stage (modul) and must be set after creating the module and before creating the pipeline
shaderStages[1].pSpecializationInfo = &specializationInfo;
// Solid phong shading
specializationData.lightingModel = 0;
VK_CHECK_RESULT(vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCreateInfo, nullptr, &pipelines.phong));
// Phong and textured
specializationData.lightingModel = 1;
VK_CHECK_RESULT(vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCreateInfo, nullptr, &pipelines.toon));
// Textured discard
specializationData.lightingModel = 2;
VK_CHECK_RESULT(vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCreateInfo, nullptr, &pipelines.textured));
}
void FilterOutputOpticalFlowPlugin::setupShader( GPU::Shader &shader )
{
std::string logs;
if( !loadShader(shader,"reproj",&logs) )
qWarning( (__FUNCTION__": "+logs).c_str() );
}
void preparePipelines()
{
VkResult err;
VkPipelineInputAssemblyStateCreateInfo inputAssemblyState =
vkTools::initializers::pipelineInputAssemblyStateCreateInfo(
VK_PRIMITIVE_TOPOLOGY_POINT_LIST,
0,
VK_FALSE);
VkPipelineRasterizationStateCreateInfo rasterizationState =
vkTools::initializers::pipelineRasterizationStateCreateInfo(
VK_POLYGON_MODE_FILL,
VK_CULL_MODE_NONE,
VK_FRONT_FACE_COUNTER_CLOCKWISE,
0);
VkPipelineColorBlendAttachmentState blendAttachmentState =
vkTools::initializers::pipelineColorBlendAttachmentState(
0xf,
VK_FALSE);
VkPipelineColorBlendStateCreateInfo colorBlendState =
vkTools::initializers::pipelineColorBlendStateCreateInfo(
1,
&blendAttachmentState);
VkPipelineDepthStencilStateCreateInfo depthStencilState =
vkTools::initializers::pipelineDepthStencilStateCreateInfo(
VK_TRUE,
VK_TRUE,
VK_COMPARE_OP_LESS_OR_EQUAL);
VkPipelineViewportStateCreateInfo viewportState =
vkTools::initializers::pipelineViewportStateCreateInfo(1, 1, 0);
VkPipelineMultisampleStateCreateInfo multisampleState =
vkTools::initializers::pipelineMultisampleStateCreateInfo(
VK_SAMPLE_COUNT_1_BIT,
0);
std::vector<VkDynamicState> dynamicStateEnables = {
VK_DYNAMIC_STATE_VIEWPORT,
VK_DYNAMIC_STATE_SCISSOR
};
VkPipelineDynamicStateCreateInfo dynamicState =
vkTools::initializers::pipelineDynamicStateCreateInfo(
dynamicStateEnables.data(),
dynamicStateEnables.size(),
0);
// Rendering pipeline
// Load shaders
std::array<VkPipelineShaderStageCreateInfo,2> shaderStages;
shaderStages[0] = loadShader(getAssetPath() + "shaders/computeparticles/particle.vert.spv", VK_SHADER_STAGE_VERTEX_BIT);
shaderStages[1] = loadShader(getAssetPath() + "shaders/computeparticles/particle.frag.spv", VK_SHADER_STAGE_FRAGMENT_BIT);
VkGraphicsPipelineCreateInfo pipelineCreateInfo =
vkTools::initializers::pipelineCreateInfo(
pipelineLayout,
renderPass,
0);
pipelineCreateInfo.pVertexInputState = &vertices.inputState;
pipelineCreateInfo.pInputAssemblyState = &inputAssemblyState;
pipelineCreateInfo.pRasterizationState = &rasterizationState;
pipelineCreateInfo.pColorBlendState = &colorBlendState;
pipelineCreateInfo.pMultisampleState = &multisampleState;
pipelineCreateInfo.pViewportState = &viewportState;
pipelineCreateInfo.pDepthStencilState = &depthStencilState;
pipelineCreateInfo.pDynamicState = &dynamicState;
pipelineCreateInfo.stageCount = shaderStages.size();
pipelineCreateInfo.pStages = shaderStages.data();
pipelineCreateInfo.renderPass = renderPass;
// Additive blending
blendAttachmentState.colorWriteMask = 0xF;
blendAttachmentState.blendEnable = VK_TRUE;
blendAttachmentState.colorBlendOp = VK_BLEND_OP_ADD;
blendAttachmentState.srcColorBlendFactor = VK_BLEND_FACTOR_ONE;
blendAttachmentState.dstColorBlendFactor = VK_BLEND_FACTOR_ONE;
blendAttachmentState.alphaBlendOp = VK_BLEND_OP_ADD;
blendAttachmentState.srcAlphaBlendFactor = VK_BLEND_FACTOR_SRC_ALPHA;
blendAttachmentState.dstAlphaBlendFactor = VK_BLEND_FACTOR_DST_ALPHA;
err = vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCreateInfo, nullptr, &pipelines.postCompute);
assert(!err);
}
void
ShaderLoader::load( const std::string& _path,
const SHADER_TYPE _shaderType )
{
// argument checks
if ( _path.empty() )
GEM_ERROR( "Path argument is empty." );
// always create new
if ( isLoaded_ )
clear();
// local variables
SHADER_TYPE shaderType = _shaderType;
std::string path = _path;
// split path
std::string dir, name, ext;
splitPath( path, &dir, &name, &ext );
// Tell the user that we are trying to load the file
GEM_CONSOLE( "Loading shader " + name + (ext.empty() ? "" : ".") + ext );
// Determine file format from extension
if ( shaderType == SHADER_TYPE_NONE )
{
if ( ext == "vert" )
{
shaderType = SHADER_TYPE_VERTEX;
}
else if ( ext == "frag" )
{
shaderType = SHADER_TYPE_FRAGMENT;
}
else if ( ext == "geom" )
{
shaderType = SHADER_TYPE_GEOMETRY;
}
else if ( ext == "tesc" )
{
shaderType = SHADER_TYPE_TESSELATION_CONTROL;
}
else if ( ext == "tese" )
{
shaderType = SHADER_TYPE_TESSELATION_EVALUATION;
}
}
// activate the right file loader depending on file type
try
{
switch( shaderType )
{
case SHADER_TYPE_VERTEX:
case SHADER_TYPE_FRAGMENT:
case SHADER_TYPE_GEOMETRY:
case SHADER_TYPE_TESSELATION_CONTROL:
case SHADER_TYPE_TESSELATION_EVALUATION:
loadShader( path );
break;
default:
GEM_THROW( "Unsupported file type ." + ext );
break;
}
}
catch( const std::exception& e )
{
clear();
GEM_ERROR( e.what() );
}
// we got this far, so we are ok to setup member variables
path_ = path;
shaderType_ = shaderType;
isLoaded_ = true;
}
void preparePipelines()
{
VkPipelineInputAssemblyStateCreateInfo inputAssemblyState =
vks::initializers::pipelineInputAssemblyStateCreateInfo(
VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST,
0,
VK_FALSE);
VkPipelineRasterizationStateCreateInfo rasterizationState =
vks::initializers::pipelineRasterizationStateCreateInfo(
VK_POLYGON_MODE_FILL,
VK_CULL_MODE_NONE,
VK_FRONT_FACE_COUNTER_CLOCKWISE,
0);
VkPipelineColorBlendAttachmentState blendAttachmentState =
vks::initializers::pipelineColorBlendAttachmentState(
0xf,
VK_FALSE);
VkPipelineColorBlendStateCreateInfo colorBlendState =
vks::initializers::pipelineColorBlendStateCreateInfo(
1,
&blendAttachmentState);
VkPipelineDepthStencilStateCreateInfo depthStencilState =
vks::initializers::pipelineDepthStencilStateCreateInfo(
VK_TRUE,
VK_TRUE,
VK_COMPARE_OP_LESS_OR_EQUAL);
VkPipelineViewportStateCreateInfo viewportState =
vks::initializers::pipelineViewportStateCreateInfo(1, 1, 0);
VkPipelineMultisampleStateCreateInfo multisampleState =
vks::initializers::pipelineMultisampleStateCreateInfo(
VK_SAMPLE_COUNT_1_BIT,
0);
std::vector<VkDynamicState> dynamicStateEnables = {
VK_DYNAMIC_STATE_VIEWPORT,
VK_DYNAMIC_STATE_SCISSOR
};
VkPipelineDynamicStateCreateInfo dynamicState =
vks::initializers::pipelineDynamicStateCreateInfo(
dynamicStateEnables.data(),
static_cast<uint32_t>(dynamicStateEnables.size()),
0);
// Load shaders
std::array<VkPipelineShaderStageCreateInfo, 2> shaderStages;
shaderStages[0] = loadShader(getAssetPath() + "shaders/dynamicuniformbuffer/base.vert.spv", VK_SHADER_STAGE_VERTEX_BIT);
shaderStages[1] = loadShader(getAssetPath() + "shaders/dynamicuniformbuffer/base.frag.spv", VK_SHADER_STAGE_FRAGMENT_BIT);
VkGraphicsPipelineCreateInfo pipelineCreateInfo =
vks::initializers::pipelineCreateInfo(
pipelineLayout,
renderPass,
0);
pipelineCreateInfo.pVertexInputState = &vertices.inputState;
pipelineCreateInfo.pInputAssemblyState = &inputAssemblyState;
pipelineCreateInfo.pRasterizationState = &rasterizationState;
pipelineCreateInfo.pColorBlendState = &colorBlendState;
pipelineCreateInfo.pMultisampleState = &multisampleState;
pipelineCreateInfo.pViewportState = &viewportState;
pipelineCreateInfo.pDepthStencilState = &depthStencilState;
pipelineCreateInfo.pDynamicState = &dynamicState;
pipelineCreateInfo.stageCount = static_cast<uint32_t>(shaderStages.size());
pipelineCreateInfo.pStages = shaderStages.data();
VK_CHECK_RESULT(vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCreateInfo, nullptr, &pipeline));
}
bool Application::Init() {
glClearColor(0.100f, 0.200f, 0.250f, 1.0f);
glEnable(GL_CULL_FACE);
glEnable(GL_DEPTH_TEST);
glCullFace(GL_BACK);
// =================================================================
// ================== Generate the Cylinder ========================
// =================================================================
Vertex cylinder_vertices[( N + 1 )*( M + 1 )];
compute_cylinders(cylinder_vertices);
GLushort cylinder_indices[3 * 2 * ( N )*( M )];
for( size_t i = 0; i < N; ++i ) {
for( size_t j = 0; j < M; ++j ) {
cylinder_indices[6 * i + j * 3 * 2 * N + 0] = i + j *( N + 1 );
cylinder_indices[6 * i + j * 3 * 2 * N + 1] = i + 1 + j *( N + 1 );
cylinder_indices[6 * i + j * 3 * 2 * N + 2] = i + ( j + 1 )*( N + 1 );
cylinder_indices[6 * i + j * 3 * 2 * N + 3] = i + 1 + j *( N + 1 );
cylinder_indices[6 * i + j * 3 * 2 * N + 4] = i + 1 + ( j + 1 )*( N + 1 );
cylinder_indices[6 * i + j * 3 * 2 * N + 5] = i + ( j + 1 )*( N + 1 );
}
}
// =================================================================
// ================== Initialize buffers for Cylinder ==============
// =================================================================
glGenVertexArrays(1, &m_VAO_ID[0]);
glBindVertexArray(m_VAO_ID[0]);
glGenBuffers(1, &m_VBO_ID[0]);
glBindBuffer(GL_ARRAY_BUFFER, m_VBO_ID[0]);
glBufferData(GL_ARRAY_BUFFER, sizeof(cylinder_vertices), cylinder_vertices, GL_STATIC_DRAW);
glEnableVertexAttribArray(0);
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, sizeof(Vertex), 0);
glEnableVertexAttribArray(1);
glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, sizeof(Vertex), (void*)(sizeof(glm::vec3)));
glGenBuffers(1, &m_IB_ID[0]);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, m_IB_ID[0]);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(cylinder_indices), cylinder_indices, GL_STATIC_DRAW);
glBindVertexArray(0);
glBindBuffer(GL_ARRAY_BUFFER, 0);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
// =================================================================
// ================== Generate the Circle ==========================
// =================================================================
Vertex circle_vertices[N+1];
compute_circles(circle_vertices);
GLushort circle_indices[3*2*N];
/*for( size_t i = 0; i < N; i++ ) {
circle_indices[6 * i + 0] = i;
circle_indices[6 * i + 1] = i+1;
circle_indices[6 * i + 2] = i;
circle_indices[6 * i + 3] = i;
circle_indices[6 * i + 4] = i;
circle_indices[6 * i + 5] = i;
}*/
for( size_t i = 0; i < N; ++i ) {
for( size_t j = 0; j < M; ++j ) {
circle_indices[6 * i + j * 3 * 2 * N + 0] = i + j *( N + 1 );
circle_indices[6 * i + j * 3 * 2 * N + 1] = i + 1 + j *( N + 1 );
circle_indices[6 * i + j * 3 * 2 * N + 2] = i + ( j + 1 )*( N + 1 );
circle_indices[6 * i + j * 3 * 2 * N + 3] = i + 1 + j *( N + 1 );
circle_indices[6 * i + j * 3 * 2 * N + 4] = i + 1 + ( j + 1 )*( N + 1 );
circle_indices[6 * i + j * 3 * 2 * N + 5] = i + ( j + 1 )*( N + 1 );
}
}
// =================================================================
// ================== Initialize buffers for Circle ================
// =================================================================
glGenVertexArrays(1, &m_VAO_ID[1]);
glBindVertexArray(m_VAO_ID[1]);
glGenBuffers(1, &m_VBO_ID[1]);
glBindBuffer(GL_ARRAY_BUFFER, m_VBO_ID[1]);
glBufferData(GL_ARRAY_BUFFER, sizeof(circle_vertices), circle_vertices, GL_STATIC_DRAW);
glEnableVertexAttribArray(0);
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, sizeof(Vertex), 0);
glEnableVertexAttribArray(1);
glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, sizeof(Vertex), (void*)( sizeof(glm::vec3) ));
glGenBuffers(1, &m_IB_ID[1]);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, m_IB_ID[1]);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(circle_indices), circle_indices, GL_STATIC_DRAW);
glBindVertexArray(0);
glBindBuffer(GL_ARRAY_BUFFER, 0);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
// =================================================================
// ================== Create the shader program ====================
// =================================================================
GLuint vertex_shader = loadShader(GL_VERTEX_SHADER, "myVert.vert");
GLuint fragment_shader = loadShader(GL_FRAGMENT_SHADER, "myFrag.frag");
m_program_ID = glCreateProgram();
glAttachShader(m_program_ID, vertex_shader);
glAttachShader(m_program_ID, fragment_shader);
glBindAttribLocation(m_program_ID, 0, "vs_in_pos");
glBindAttribLocation(m_program_ID, 1, "vs_in_col");
glLinkProgram(m_program_ID);
// 'uniform' variables of the shader:
m_loc_MVP = glGetUniformLocation(m_program_ID, "MVP");
// TODO: Hiba ellenörzés
glDeleteShader(vertex_shader);
glDeleteShader(fragment_shader);
// =================================================================
// =========== Create the projection and view matrices =============
// =================================================================
return true;
}
SuperShader::Cache::Pair SuperShader::getShader(const Material& material) {
// First check the cache
Cache::Pair p = cache.getSimilar(material);
if (p.shadowMappedShader.isNull()) {
// Not found in cache; load from disk
static const std::string shadowName = "ShadowMappedLightPass";
static const std::string nonShadowName = "NonShadowedPass";
std::string defines;
if (material.diffuse.constant != Color3::black()) {
if (material.diffuse.map.notNull()) {
defines += "#define DIFFUSEMAP\n";
// If the color is white, don't multiply by it
if (material.diffuse.constant != Color3::white()) {
defines += "#define DIFFUSECONSTANT\n";
}
} else {
defines += "#define DIFFUSECONSTANT\n";
}
}
if (material.specular.constant != Color3::black()) {
if (material.specular.map.notNull()) {
defines += "#define SPECULARMAP\n";
// If the color is white, don't multiply by it
if (material.specular.constant != Color3::white()) {
defines += "#define SPECULARCONSTANT\n";
}
} else {
defines += "#define SPECULARCONSTANT\n";
}
if (material.specularExponent.constant != Color3::black()) {
if (material.specularExponent.map.notNull()) {
defines += "#define SPECULAREXPONENTMAP\n";
// If the color is white, don't multiply by it
if (material.specularExponent.constant != Color3::white()) {
defines += "#define SPECULAREXPONENTCONSTANT\n";
}
} else {
defines += "#define SPECULAREXPONENTCONSTANT\n";
}
}
}
if (material.emit.constant != Color3::black()) {
if (material.emit.map.notNull()) {
defines += "#define EMITMAP\n";
// If the color is white, don't multiply by it
if (material.emit.constant != Color3::white()) {
defines += "#define EMITCONSTANT\n";
}
} else {
defines += "#define EMITCONSTANT\n";
}
}
if (material.reflect.constant != Color3::black()) {
if (material.reflect.map.notNull()) {
defines += "#define REFLECTMAP\n";
// If the color is white, don't multiply by it
if (material.reflect.constant != Color3::white()) {
defines += "#define REFLECTCONSTANT\n";
}
} else {
defines += "#define REFLECTCONSTANT\n";
if (material.reflect.constant == Color3::white()) {
defines += "#define REFLECTWHITE\n";
}
}
}
if ((material.bumpMapScale != 0) && material.normalBumpMap.notNull()) {
defines += "#define NORMALBUMPMAP\n";
}
p.nonShadowedShader = loadShader(nonShadowName, defines);
p.shadowMappedShader = loadShader(shadowName, defines);
p.nonShadowedShader->args.set("backside", 1.0);
p.shadowMappedShader->args.set("backside", 1.0);
cache.add(material, p);
}
return p;
}
void preparePipelines()
{
VkPipelineInputAssemblyStateCreateInfo inputAssemblyState =
vks::initializers::pipelineInputAssemblyStateCreateInfo(
VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST,
0,
VK_FALSE);
VkPipelineRasterizationStateCreateInfo rasterizationState =
vks::initializers::pipelineRasterizationStateCreateInfo(
VK_POLYGON_MODE_FILL,
VK_CULL_MODE_BACK_BIT,
VK_FRONT_FACE_COUNTER_CLOCKWISE,
0);
VkPipelineColorBlendAttachmentState blendAttachmentState =
vks::initializers::pipelineColorBlendAttachmentState(
0xf,
VK_FALSE);
VkPipelineColorBlendStateCreateInfo colorBlendState =
vks::initializers::pipelineColorBlendStateCreateInfo(
1,
&blendAttachmentState);
VkPipelineDepthStencilStateCreateInfo depthStencilState =
vks::initializers::pipelineDepthStencilStateCreateInfo(
VK_FALSE,
VK_FALSE,
VK_COMPARE_OP_LESS_OR_EQUAL);
VkPipelineViewportStateCreateInfo viewportState =
vks::initializers::pipelineViewportStateCreateInfo(1, 1, 0);
VkPipelineMultisampleStateCreateInfo multisampleState =
vks::initializers::pipelineMultisampleStateCreateInfo(
VK_SAMPLE_COUNT_1_BIT,
0);
std::vector<VkDynamicState> dynamicStateEnables = {
VK_DYNAMIC_STATE_VIEWPORT,
VK_DYNAMIC_STATE_SCISSOR
};
VkPipelineDynamicStateCreateInfo dynamicState =
vks::initializers::pipelineDynamicStateCreateInfo(
dynamicStateEnables.data(),
dynamicStateEnables.size(),
0);
// Vertex bindings and attributes
VkVertexInputBindingDescription vertexInputBinding =
vks::initializers::vertexInputBindingDescription(0, vertexLayout.stride(), VK_VERTEX_INPUT_RATE_VERTEX);
std::vector<VkVertexInputAttributeDescription> vertexInputAttributes = {
vks::initializers::vertexInputAttributeDescription(0, 0, VK_FORMAT_R32G32B32_SFLOAT, 0), // Location 0: Position
vks::initializers::vertexInputAttributeDescription(0, 1, VK_FORMAT_R32G32B32_SFLOAT, sizeof(float) * 3), // Location 1: Normal
};
VkPipelineVertexInputStateCreateInfo vertexInputState = vks::initializers::pipelineVertexInputStateCreateInfo();
vertexInputState.vertexBindingDescriptionCount = 1;
vertexInputState.pVertexBindingDescriptions = &vertexInputBinding;
vertexInputState.vertexAttributeDescriptionCount = static_cast<uint32_t>(vertexInputAttributes.size());
vertexInputState.pVertexAttributeDescriptions = vertexInputAttributes.data();
std::array<VkPipelineShaderStageCreateInfo, 2> shaderStages;
VkGraphicsPipelineCreateInfo pipelineCreateInfo = vks::initializers::pipelineCreateInfo(pipelineLayout, renderPass, 0);
pipelineCreateInfo.pInputAssemblyState = &inputAssemblyState;
pipelineCreateInfo.pRasterizationState = &rasterizationState;
pipelineCreateInfo.pColorBlendState = &colorBlendState;
pipelineCreateInfo.pMultisampleState = &multisampleState;
pipelineCreateInfo.pViewportState = &viewportState;
pipelineCreateInfo.pDepthStencilState = &depthStencilState;
pipelineCreateInfo.pDynamicState = &dynamicState;
pipelineCreateInfo.stageCount = shaderStages.size();
pipelineCreateInfo.pStages = shaderStages.data();
pipelineCreateInfo.pVertexInputState = &vertexInputState;
// Skybox pipeline (background cube)
shaderStages[0] = loadShader(getAssetPath() + "shaders/texturecubemap/skybox.vert.spv", VK_SHADER_STAGE_VERTEX_BIT);
shaderStages[1] = loadShader(getAssetPath() + "shaders/texturecubemap/skybox.frag.spv", VK_SHADER_STAGE_FRAGMENT_BIT);
VK_CHECK_RESULT(vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCreateInfo, nullptr, &pipelines.skybox));
// Cube map reflect pipeline
shaderStages[0] = loadShader(getAssetPath() + "shaders/texturecubemap/reflect.vert.spv", VK_SHADER_STAGE_VERTEX_BIT);
shaderStages[1] = loadShader(getAssetPath() + "shaders/texturecubemap/reflect.frag.spv", VK_SHADER_STAGE_FRAGMENT_BIT);
// Enable depth test and write
depthStencilState.depthWriteEnable = VK_TRUE;
depthStencilState.depthTestEnable = VK_TRUE;
// Flip cull mode
rasterizationState.cullMode = VK_CULL_MODE_FRONT_BIT;
VK_CHECK_RESULT(vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCreateInfo, nullptr, &pipelines.reflect));
}
/**
* @brief Load and initialize shaders
*/
virtual void initialize (void)
{
// searches in default shader directory (/shaders) for shader files phongShader.(vert,frag,geom,comp)
loadShader(depthmap_shader, "depthmap") ;
}
void grass_tech::loadShaders()
{
shaders[0] = loadShader("../shaders/grassVS.glsl", GL_VERTEX_SHADER);
shaders[1] = loadShader("../shaders/grassGS.glsl", GL_GEOMETRY_SHADER);
shaders[2] = loadShader("../shaders/grassFS.glsl", GL_FRAGMENT_SHADER);
}
bool initialize()
{
// Initialize geometry and shaders for this example
//this defines a cube, this is why a model loader is nice
//you can also do this with a draw elements and indices, try to get that working
std::cout << "Obj file is loading this might take a moment. Please wait." << std::endl;
if(!loadObj("sphere.obj", geometry, vertexCount))
{
std::cerr << "[F] The obj file did not load correctly." << std::endl;
return false;
}
// Create a Vertex Buffer object to store this vertex info on the GPU
glGenBuffers(1, &vbo_geometry);
glBindBuffer(GL_ARRAY_BUFFER, vbo_geometry);
glBufferData(GL_ARRAY_BUFFER, vertexCount*sizeof(Vertex), geometry, GL_STATIC_DRAW);
//--Geometry done
GLuint vertex_shader = glCreateShader(GL_VERTEX_SHADER);
GLuint fragment_shader = glCreateShader(GL_FRAGMENT_SHADER);
//Shader Sources
// Put these into files and write a loader in the future
// Note the added uniform!
std::string vs = loadShader("VertexShader.txt");
std::string fs = loadShader("FragShader.txt");
//compile the shaders
GLint shader_status;
const char* _vs = vs.c_str();
const char* _fs = fs.c_str();
// Vertex shader first
glShaderSource(vertex_shader, 1, &_vs, NULL);
glCompileShader(vertex_shader);
//check the compile status
glGetShaderiv(vertex_shader, GL_COMPILE_STATUS, &shader_status);
if(!shader_status)
{
std::cerr << "[F] FAILED TO COMPILE VERTEX SHADER!" << std::endl;
return false;
}
// Now the Fragment shader
glShaderSource(fragment_shader, 1, &_fs, NULL);
glCompileShader(fragment_shader);
//check the compile status
glGetShaderiv(fragment_shader, GL_COMPILE_STATUS, &shader_status);
if(!shader_status)
{
std::cerr << "[F] FAILED TO COMPILE FRAGMENT SHADER!" << std::endl;
return false;
}
//Now we link the 2 shader objects into a program
//This program is what is run on the GPU
program = glCreateProgram();
glAttachShader(program, vertex_shader);
glAttachShader(program, fragment_shader);
glLinkProgram(program);
//check if everything linked ok
glGetProgramiv(program, GL_LINK_STATUS, &shader_status);
if(!shader_status)
{
std::cerr << "[F] THE SHADER PROGRAM FAILED TO LINK" << std::endl;
return false;
}
//Now we set the locations of the attributes and uniforms
//this allows us to access them easily while rendering
loc_position = glGetAttribLocation(program,
const_cast<const char*>("v_position"));
if(loc_position == -1)
{
std::cerr << "[F] POSITION NOT FOUND" << std::endl;
return false;
}
loc_color = glGetAttribLocation(program,
const_cast<const char*>("v_color"));
if(loc_color == -1)
{
std::cerr << "[F] V_COLOR NOT FOUND" << std::endl;
return false;
}
//loc_norm = glGetAttribLocation(program, //commented out just so it can compile
// const_cast<const char*>("v_norm")); //commented out just so it can compile
//if(loc_norm == -1) //commented out just so it can compile
//{ //commented out just so it can compile
// std::cerr << "[F] V_NORM NOT FOUND" << std::endl; //commented out just so it can compile
// return false; //commented out just so it can compile
//} //commented out just so it can compile
loc_modelView = glGetUniformLocation(program,
const_cast<const char*>("ModelView"));
if(loc_modelView == -1)
{
std::cerr << "[F] MODELVIEW NOT FOUND" << std::endl;
return false;
}
loc_projection = glGetUniformLocation(program,
const_cast<const char*>("Projection"));
if(loc_projection == -1)
{
std::cerr << "[F] PROJECTION NOT FOUND" << std::endl;
return false;
}
//--Init the view and projection matrices
// if you will be having a moving camera the view matrix will need to more dynamic
// ...Like you should update it before you render more dynamic
// for this project having them static will be fine
view = glm::lookAt( glm::vec3(0.0, 8.0, -16.0), //Eye Position
glm::vec3(0.0, 0.0, 0.0), //Focus point
glm::vec3(0.0, 1.0, 0.0)); //Positive Y is up
projection = glm::perspective( 45.0f, //the FoV typically 90 degrees is good which is what this is set to
float(w)/float(h), //Aspect Ratio, so Circles stay Circular
0.01f, //Distance to the near plane, normally a small value like this
100.0f); //Distance to the far plane,
//enable depth testing
glEnable(GL_DEPTH_TEST);
glDepthFunc(GL_LESS);
//and its done
return true;
}
int main(void)
{
GLFWwindow* window;
/* Initialize the library */
if(!glfwInit())
return -1;
/* Create a windowed mode window and its OpenGL context */
window = glfwCreateWindow(640, 480, "Hello World", NULL, NULL);
if(!window)
{
glfwTerminate();
return -1;
}
/* Make the window's context current */
glfwMakeContextCurrent(window);
GLFWmousebuttonfun pFun = mouseCallback;
// init GLEW
glewExperimental = GL_TRUE;
GLenum err = glewInit();
if(GLEW_OK != err)
return -1;
GLuint m_shaderProgramId;
{ // shaders
GLuint m_vertexShaderId = loadShader("C:\\Projects\\DI\\testGL\\VertexShader.glsl", GL_VERTEX_SHADER);
GLuint m_fragmentShaderId = loadShader("C:\\Projects\\DI\\testGL\\FragmentShader.glsl", GL_FRAGMENT_SHADER);
m_shaderProgramId = glCreateProgram();
glAttachShader(m_shaderProgramId, m_vertexShaderId);
glAttachShader(m_shaderProgramId, m_fragmentShaderId);
glLinkProgram(m_shaderProgramId);
}
CModel model;
kt::readObj(&model, "C:\\Projects\\Resources\\Models\\obj\\african_head.obj");
GLuint vertexbuffer = model.vbId();
//glEnable(GL_DEPTH_TEST);
//glClearDepth(1.0f);
//glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); // ????
// Camera and matrices
float radius = 1.0f;
static float orbitX = 0;
static float orbitY = 0;
// GLFWAPI void glfwSetCursorPos(GLFWwindow* window, double xpos, double ypos);
// glfwSetMouseButtonCallback(GLFWwindow* window, GLFWmousebuttonfun cbfun);
// glfwSetCursorPosCallback(GLFWwindow* window, GLFWcursorposfun cbfun);
// GLFWAPI void glfwGetCursorPos(GLFWwindow* window, double* xpos, double* ypos);
/* Loop until the user closes the window */
while(!glfwWindowShouldClose(window))
{
GLFWmousebuttonfun ptr = glfwSetMouseButtonCallback(window, pFun);
/* Render here */
{
glEnable(GL_DEPTH_TEST);
glClearDepth(1.0f);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
if(pRotation)
{
D1 x, y;
glfwGetCursorPos(window, &x, &y);
orbitX += (pRotation->x - x) / 100;
orbitY += (pRotation->y - y) / 100;
pRotation->x = x;
pRotation->y = y;
}
// orbit += 0.0001f;
// Инициализация орбитальных данных координат камеры
// glm::vec3 Eye(sin(orbitX)*radius, 1.0f, -0.5f + cos(orbitX)*radius*1.5f);
glm::vec3 Eye(-radius*sin(orbitY)*cos(orbitX), radius*cos(orbitY), radius*sin(orbitY)*sin(orbitX));
glm::mat4 mWorld;
glm::mat4 mView;
glm::mat4 mProjection;
mWorld = glm::mat4(1.0f, 0, 0, 0, 0, 1.0f, 0, 0, 0, 0, 1.0f, 0, 0, 0, 0, 1.0f);
mView = glm::lookAt(Eye, glm::vec3(0, 0, 0), glm::vec3(0.0f, 1.0f, 0.0f));
mProjection = glm::perspectiveFov(90.0f, 533.0f, 400.0f, 0.001f, 1000.0f);
// Clear the screen
glClear(GL_COLOR_BUFFER_BIT);
// Use our shader
glUseProgram(m_shaderProgramId);
//Установка констант шейдера матриц
int iWorld = glGetUniformLocation(m_shaderProgramId, "mWorld");
int iView = glGetUniformLocation(m_shaderProgramId, "mView");
int iProjection = glGetUniformLocation(m_shaderProgramId, "mProjection");
glUniformMatrix4fv(iWorld, 1, GL_FALSE, glm::value_ptr(mWorld));
glUniformMatrix4fv(iView, 1, GL_FALSE, glm::value_ptr(mView));
glUniformMatrix4fv(iProjection, 1, GL_FALSE, glm::value_ptr(mProjection));
// 1rst attribute buffer : vertices
glEnableVertexAttribArray(0);
glBindBuffer(GL_ARRAY_BUFFER, vertexbuffer);
glVertexAttribPointer(
0, // attribute 0. No particular reason for 0, but must match the layout in the shader.
3, // size
GL_FLOAT, // type
GL_FALSE, // normalized?
0, // stride
(void*)0 // array buffer offset
);
// Draw the triangle !
glDrawArrays(GL_TRIANGLES, 0, model.nTrng()*3); // 3 indices starting at 0 -> 1 triangle
glDisableVertexAttribArray(0);
}
/* Swap front and back buffers */
glfwSwapBuffers(window);
/* Poll for and process events */
glfwPollEvents();
}
glfwTerminate();
return 0;
}
void preparePipelines()
{
VkPipelineInputAssemblyStateCreateInfo inputAssemblyState =
vks::initializers::pipelineInputAssemblyStateCreateInfo(VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST, 0, VK_FALSE);
VkPipelineRasterizationStateCreateInfo rasterizationState =
vks::initializers::pipelineRasterizationStateCreateInfo(VK_POLYGON_MODE_FILL, VK_CULL_MODE_NONE, VK_FRONT_FACE_COUNTER_CLOCKWISE);
VkPipelineColorBlendAttachmentState blendAttachmentState =
vks::initializers::pipelineColorBlendAttachmentState(0xf, VK_FALSE);
VkPipelineColorBlendStateCreateInfo colorBlendState =
vks::initializers::pipelineColorBlendStateCreateInfo(1, &blendAttachmentState);
VkPipelineDepthStencilStateCreateInfo depthStencilState =
vks::initializers::pipelineDepthStencilStateCreateInfo(VK_TRUE, VK_TRUE, VK_COMPARE_OP_LESS_OR_EQUAL);
VkPipelineViewportStateCreateInfo viewportState =
vks::initializers::pipelineViewportStateCreateInfo(1, 1, 0);
VkPipelineMultisampleStateCreateInfo multisampleState =
vks::initializers::pipelineMultisampleStateCreateInfo(VK_SAMPLE_COUNT_1_BIT);
std::vector<VkDynamicState> dynamicStateEnables = {
VK_DYNAMIC_STATE_VIEWPORT,
VK_DYNAMIC_STATE_SCISSOR
};
VkPipelineDynamicStateCreateInfo dynamicState =
vks::initializers::pipelineDynamicStateCreateInfo(dynamicStateEnables);
// Load shaders
std::array<VkPipelineShaderStageCreateInfo, 2> shaderStages;
VkGraphicsPipelineCreateInfo pipelineCreateInfo =
vks::initializers::pipelineCreateInfo(pipelineLayout, renderPass);
pipelineCreateInfo.pInputAssemblyState = &inputAssemblyState;
pipelineCreateInfo.pRasterizationState = &rasterizationState;
pipelineCreateInfo.pColorBlendState = &colorBlendState;
pipelineCreateInfo.pMultisampleState = &multisampleState;
pipelineCreateInfo.pViewportState = &viewportState;
pipelineCreateInfo.pDepthStencilState = &depthStencilState;
pipelineCreateInfo.pDynamicState = &dynamicState;
pipelineCreateInfo.stageCount = static_cast<uint32_t>(shaderStages.size());
pipelineCreateInfo.pStages = shaderStages.data();
// Vertex bindings an attributes
std::vector<VkVertexInputBindingDescription> vertexInputBindings = {
vks::initializers::vertexInputBindingDescription(0, vertexLayout.stride(), VK_VERTEX_INPUT_RATE_VERTEX),
};
std::vector<VkVertexInputAttributeDescription> vertexInputAttributes = {
vks::initializers::vertexInputAttributeDescription(VERTEX_BUFFER_BIND_ID, 0, VK_FORMAT_R32G32B32_SFLOAT, 0), // Location 0: Position
vks::initializers::vertexInputAttributeDescription(VERTEX_BUFFER_BIND_ID, 1, VK_FORMAT_R32G32_SFLOAT, sizeof(float) * 3), // Location 1: Texture coordinates
vks::initializers::vertexInputAttributeDescription(VERTEX_BUFFER_BIND_ID, 2, VK_FORMAT_R32G32B32_SFLOAT, sizeof(float) * 5), // Location 2: Normal
vks::initializers::vertexInputAttributeDescription(VERTEX_BUFFER_BIND_ID, 3, VK_FORMAT_R32G32B32_SFLOAT, sizeof(float) * 8), // Location 3: Tangent
vks::initializers::vertexInputAttributeDescription(VERTEX_BUFFER_BIND_ID, 4, VK_FORMAT_R32G32B32_SFLOAT, sizeof(float) * 11), // Location 4: Bitangent
};
VkPipelineVertexInputStateCreateInfo vertexInputState = vks::initializers::pipelineVertexInputStateCreateInfo();
vertexInputState.vertexBindingDescriptionCount = static_cast<uint32_t>(vertexInputBindings.size());
vertexInputState.pVertexBindingDescriptions = vertexInputBindings.data();
vertexInputState.vertexAttributeDescriptionCount = static_cast<uint32_t>(vertexInputAttributes.size());
vertexInputState.pVertexAttributeDescriptions = vertexInputAttributes.data();
pipelineCreateInfo.pVertexInputState = &vertexInputState;
// Parallax mapping modes pipeline
shaderStages[0] = loadShader(getAssetPath() + "shaders/parallaxmapping/parallax.vert.spv", VK_SHADER_STAGE_VERTEX_BIT);
shaderStages[1] = loadShader(getAssetPath() + "shaders/parallaxmapping/parallax.frag.spv", VK_SHADER_STAGE_FRAGMENT_BIT);
VK_CHECK_RESULT(vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCreateInfo, nullptr, &pipeline));
}
bool SkyBox::load(GLfloat scale)
{
GLfloat cube_vertices[] = {
// front
-1.0, -1.0, 1.0,
1.0, -1.0, 1.0,
1.0, 1.0, 1.0,
-1.0, 1.0, 1.0,
// top
-1.0, 1.0, 1.0,
1.0, 1.0, 1.0,
1.0, 1.0, -1.0,
-1.0, 1.0, -1.0,
// back
1.0, -1.0, -1.0,
-1.0, -1.0, -1.0,
-1.0, 1.0, -1.0,
1.0, 1.0, -1.0,
// bottom
-1.0, -1.0, -1.0,
1.0, -1.0, -1.0,
1.0, -1.0, 1.0,
-1.0, -1.0, 1.0,
// left
-1.0, -1.0, -1.0,
-1.0, -1.0, 1.0,
-1.0, 1.0, 1.0,
-1.0, 1.0, -1.0,
// right
1.0, -1.0, 1.0,
1.0, -1.0, -1.0,
1.0, 1.0, -1.0,
1.0, 1.0, 1.0,
};
for(int i=0;i<72;i++)
cube_vertices[i]*=scale;
glGenBuffers(1, &vbo_cube_vertices);
glBindBuffer(GL_ARRAY_BUFFER, vbo_cube_vertices);
glBufferData(GL_ARRAY_BUFFER, sizeof(cube_vertices), cube_vertices, GL_STATIC_DRAW);
GLushort cube_elements[] = {
/*
// front
0, 1, 2,
2, 3, 0,
// top
4, 5, 6,
6, 7, 4,
// back
8, 9, 10,
10, 11, 8,
// bottom
12, 13, 14,
14, 15, 12,
// left
16, 17, 18,
18, 19, 16,
// right
20, 21, 22,
22, 23, 20*/
// front
2, 1, 0,
0, 3, 2,
// top
6, 5, 4,
4, 7, 6,
// back
10, 9, 8,
8, 11, 10,
// bottom
14, 13, 12,
12, 15, 14,
// left
18, 17, 16,
16, 19, 18,
// right
22, 21, 20,
20, 23, 22
};
glGenBuffers(1, &ibo_cube_elements);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, ibo_cube_elements);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(cube_elements), cube_elements, GL_STATIC_DRAW);
return loadShader();
}
Object *SceneParser::loadObject(KeyValues *data)
{
const char *format = data->getString("format");
if(!format) {
fprintf(stderr, "Key 'format' not found on Object\n");
return NULL;
}
Mesh *mesh;
if(strcmp("OFF", format) == 0 || strcmp("PLY", format) == 0) {
const char *file = data->getString("file");
if(!file) {
fprintf(stderr, "Key 'file' not found on Object\n");
return NULL;
}
char *filename = resolvePath(file);
MeshData *meshData;
if(strcmp("OFF", format) == 0) {
meshData = MeshLoaderOFF::load(filename);
}
else if(strcmp("PLY", format) == 0) {
meshData = MeshLoaderPLY::load(filename);
}
if(!meshData) {
fprintf(stderr, "Failed to load MeshData of %s\n", filename);
delete[] filename;
return NULL;
}
if(data->getInt("normalize", 1)) {
meshData->normalize();
}
if(data->getInt("normals", 0)) {
meshData->computeNormals();
}
const char *texcoords = data->getString("texcoords");
if(texcoords) {
MeshData::TexCoordsMethod method;
if(strcmp(texcoords, "sphere") == 0) {
method = MeshData::TexCoordsSphere;
}
else if(strcmp(texcoords, "cylinder") == 0) {
method = MeshData::TexCoordsCylinder;
}
meshData->genTexCoords(method);
}
if(data->getInt("tangents", 0)) {
meshData->genTangents();
}
mesh = new Mesh(meshData);
delete meshData;
delete[] filename;
}
else {
fprintf(stderr, "Invalid object format: %s\n", format);
return NULL;
}
Material *material = NULL;
QGLShaderProgram *shaderProgram = new QGLShaderProgram();
KeyValues *key;
bool error = false;
key = data->firstSubKey();
while(key) {
if(strcmp(key->name(), "shader") == 0) {
QGLShader *shader = loadShader(key);
if(shader) {
shaderProgram->addShader(shader);
}
else {
fprintf(stderr, "Failed to load shader\n");
error = true;
break;
}
}
else if (strcmp(key->name(), "material") == 0) {
if(material) {
fprintf(stderr, "Duplicated material definition\n");
}
else {
material = loadMaterial(key);
}
}
key = key->nextKey();
}
if(!shaderProgram->link()) {
fprintf(stderr, "Failed to link shader program\n");
error = true;
}
if(error) {
if(material) {
delete material;
}
delete shaderProgram;
delete mesh;
return NULL;
}
Object *object = new Object(mesh, shaderProgram, material);
object->scale(data->getFloat("scale", 1.0));
float pitch = data->getFloat("pitch", 0.0);
float yaw = data->getFloat("yaw", 0.0);
object->rotation(pitch, yaw);
const char *position = data->getString("position");
if(position) {
object->position(strtoV3D(position));
}
key = data->firstSubKey();
while(key) {
if (strcmp(key->name(), "texture") == 0) {
Texture *texture = loadTexture(key);
if(texture) {
object->addTexture(texture);
}
else {
fprintf(stderr, "Failed to load texture\n");
error = true;
break;
}
}
key = key->nextKey();
}
if(error) {
return object;
}
return object;
}
void preparePipelines()
{
if (pipeline != VK_NULL_HANDLE) {
vkDestroyPipeline(device, pipeline, nullptr);
}
VkPipelineInputAssemblyStateCreateInfo inputAssemblyState =
vks::initializers::pipelineInputAssemblyStateCreateInfo(VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST, 0, VK_FALSE);
VkPipelineRasterizationStateCreateInfo rasterizationState =
vks::initializers::pipelineRasterizationStateCreateInfo(VK_POLYGON_MODE_FILL, cullMode, VK_FRONT_FACE_CLOCKWISE, 0);
VkPipelineColorBlendAttachmentState blendAttachmentState =
vks::initializers::pipelineColorBlendAttachmentState(0xf, VK_FALSE);
VkPipelineColorBlendStateCreateInfo colorBlendState =
vks::initializers::pipelineColorBlendStateCreateInfo(1, &blendAttachmentState);
VkPipelineDepthStencilStateCreateInfo depthStencilState =
vks::initializers::pipelineDepthStencilStateCreateInfo(VK_TRUE, VK_TRUE, VK_COMPARE_OP_LESS_OR_EQUAL);
VkPipelineViewportStateCreateInfo viewportState =
vks::initializers::pipelineViewportStateCreateInfo(1, 1, 0);
VkPipelineMultisampleStateCreateInfo multisampleState =
vks::initializers::pipelineMultisampleStateCreateInfo(VK_SAMPLE_COUNT_1_BIT, 0);
std::vector<VkDynamicState> dynamicStateEnables = {
VK_DYNAMIC_STATE_VIEWPORT,
VK_DYNAMIC_STATE_SCISSOR
};
VkPipelineDynamicStateCreateInfo dynamicState =
vks::initializers::pipelineDynamicStateCreateInfo(dynamicStateEnables.data(), static_cast<uint32_t>(dynamicStateEnables.size()), 0);
VkGraphicsPipelineCreateInfo pipelineCreateInfo =
vks::initializers::pipelineCreateInfo(pipelineLayout, renderPass, 0);
VkPipelineTessellationStateCreateInfo tessellationState =
vks::initializers::pipelineTessellationStateCreateInfo(3);
pipelineCreateInfo.pInputAssemblyState = &inputAssemblyState;
pipelineCreateInfo.pRasterizationState = &rasterizationState;
pipelineCreateInfo.pColorBlendState = &colorBlendState;
pipelineCreateInfo.pMultisampleState = &multisampleState;
pipelineCreateInfo.pViewportState = &viewportState;
pipelineCreateInfo.pDepthStencilState = &depthStencilState;
pipelineCreateInfo.pDynamicState = &dynamicState;
// Vertex bindings and attributes
std::vector<VkVertexInputBindingDescription> vertexInputBindings = {
vks::initializers::vertexInputBindingDescription(0, vertexLayout.stride(), VK_VERTEX_INPUT_RATE_VERTEX)
};
std::vector<VkVertexInputAttributeDescription> vertexInputAttributes = {
vks::initializers::vertexInputAttributeDescription(0, 0, VK_FORMAT_R32G32B32_SFLOAT, 0), // Location 0 : Position
vks::initializers::vertexInputAttributeDescription(0, 1, VK_FORMAT_R32G32B32_SFLOAT, sizeof(float) * 3), // Location 1 : Normal
vks::initializers::vertexInputAttributeDescription(0, 2, VK_FORMAT_R32G32B32_SFLOAT, sizeof(float) * 6) // Location 3 : Color
};
VkPipelineVertexInputStateCreateInfo vertexInputState = vks::initializers::pipelineVertexInputStateCreateInfo();
vertexInputState.vertexBindingDescriptionCount = static_cast<uint32_t>(vertexInputBindings.size());
vertexInputState.pVertexBindingDescriptions = vertexInputBindings.data();
vertexInputState.vertexAttributeDescriptionCount = static_cast<uint32_t>(vertexInputAttributes.size());
vertexInputState.pVertexAttributeDescriptions = vertexInputAttributes.data();
pipelineCreateInfo.pVertexInputState = &vertexInputState;
if (blending) {
blendAttachmentState.blendEnable = VK_TRUE;
blendAttachmentState.colorWriteMask = VK_COLOR_COMPONENT_R_BIT | VK_COLOR_COMPONENT_G_BIT | VK_COLOR_COMPONENT_B_BIT | VK_COLOR_COMPONENT_A_BIT;
blendAttachmentState.srcColorBlendFactor = VK_BLEND_FACTOR_SRC_ALPHA;
blendAttachmentState.dstColorBlendFactor = VK_BLEND_FACTOR_ONE_MINUS_SRC_ALPHA;
blendAttachmentState.colorBlendOp = VK_BLEND_OP_ADD;
blendAttachmentState.srcAlphaBlendFactor = VK_BLEND_FACTOR_ONE_MINUS_SRC_ALPHA;
blendAttachmentState.dstAlphaBlendFactor = VK_BLEND_FACTOR_ZERO;
blendAttachmentState.alphaBlendOp = VK_BLEND_OP_ADD;
depthStencilState.depthWriteEnable = VK_FALSE;
}
if (discard) {
rasterizationState.rasterizerDiscardEnable = VK_TRUE;
}
if (wireframe) {
rasterizationState.polygonMode = VK_POLYGON_MODE_LINE;
}
std::vector<VkPipelineShaderStageCreateInfo> shaderStages;
shaderStages.resize(tessellation ? 4 : 2);
shaderStages[0] = loadShader(getAssetPath() + "shaders/pipelinestatistics/scene.vert.spv", VK_SHADER_STAGE_VERTEX_BIT);
shaderStages[1] = loadShader(getAssetPath() + "shaders/pipelinestatistics/scene.frag.spv", VK_SHADER_STAGE_FRAGMENT_BIT);
if (tessellation) {
inputAssemblyState.topology = VK_PRIMITIVE_TOPOLOGY_PATCH_LIST;
pipelineCreateInfo.pTessellationState = &tessellationState;
shaderStages[2] = loadShader(getAssetPath() + "shaders/pipelinestatistics/scene.tesc.spv", VK_SHADER_STAGE_TESSELLATION_CONTROL_BIT);
shaderStages[3] = loadShader(getAssetPath() + "shaders/pipelinestatistics/scene.tese.spv", VK_SHADER_STAGE_TESSELLATION_EVALUATION_BIT);
}
pipelineCreateInfo.stageCount = static_cast<uint32_t>(shaderStages.size());
pipelineCreateInfo.pStages = shaderStages.data();
VK_CHECK_RESULT(vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCreateInfo, nullptr, &pipeline));
}
void prepareCompute()
{
// Create compute pipeline
// Compute pipelines are created separate from graphics pipelines
// even if they use the same queue
std::vector<VkDescriptorSetLayoutBinding> setLayoutBindings = {
// Binding 0 : Particle position storage buffer
vkTools::initializers::descriptorSetLayoutBinding(
VK_DESCRIPTOR_TYPE_STORAGE_BUFFER,
VK_SHADER_STAGE_COMPUTE_BIT,
0),
// Binding 1 : Uniform buffer
vkTools::initializers::descriptorSetLayoutBinding(
VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER,
VK_SHADER_STAGE_COMPUTE_BIT,
1),
};
VkDescriptorSetLayoutCreateInfo descriptorLayout =
vkTools::initializers::descriptorSetLayoutCreateInfo(
setLayoutBindings.data(),
setLayoutBindings.size());
VkResult err = vkCreateDescriptorSetLayout(
device,
&descriptorLayout,
nullptr,
&computeDescriptorSetLayout);
assert(!err);
VkPipelineLayoutCreateInfo pPipelineLayoutCreateInfo =
vkTools::initializers::pipelineLayoutCreateInfo(
&computeDescriptorSetLayout,
1);
err = vkCreatePipelineLayout(
device,
&pPipelineLayoutCreateInfo,
nullptr,
&computePipelineLayout);
assert(!err);
VkDescriptorSetAllocateInfo allocInfo =
vkTools::initializers::descriptorSetAllocateInfo(
descriptorPool,
&computeDescriptorSetLayout,
1);
err = vkAllocateDescriptorSets(device, &allocInfo, &computeDescriptorSet);
assert(!err);
std::vector<VkWriteDescriptorSet> computeWriteDescriptorSets =
{
// Binding 0 : Particle position storage buffer
vkTools::initializers::writeDescriptorSet(
computeDescriptorSet,
VK_DESCRIPTOR_TYPE_STORAGE_BUFFER,
0,
&computeStorageBuffer.descriptor),
// Binding 1 : Uniform buffer
vkTools::initializers::writeDescriptorSet(
computeDescriptorSet,
VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER,
1,
&uniformData.computeShader.ubo.descriptor)
};
vkUpdateDescriptorSets(device, computeWriteDescriptorSets.size(), computeWriteDescriptorSets.data(), 0, NULL);
// Create pipeline
VkComputePipelineCreateInfo computePipelineCreateInfo =
vkTools::initializers::computePipelineCreateInfo(
computePipelineLayout,
0);
computePipelineCreateInfo.stage = loadShader(getAssetPath() + "shaders/computeparticles/particle.comp.spv", VK_SHADER_STAGE_COMPUTE_BIT);
err = vkCreateComputePipelines(device, pipelineCache, 1, &computePipelineCreateInfo, nullptr, &pipelines.compute);
assert(!err);
}
void App::reloadShader() {
loadShader(shader_filepath, /*reload*/true);
}
void setupShaders(
char* vertexfile,
char* fragmentfile,
GLuint *Program,
GLuint *vertexShaderObject,
GLuint *fragmentShaderObject) {
glewInit();
*vertexShaderObject = glCreateShader(GL_VERTEX_SHADER);
*fragmentShaderObject = glCreateShader(GL_FRAGMENT_SHADER);
GLchar *vertexShaderSource = 0,
*fragmentShaderSource = 0;
GLint vlength = 0,
flength = 0;
loadShader((char*)vertexfile, &vertexShaderSource, &vlength);
loadShader((char*)fragmentfile, &fragmentShaderSource, &flength);
glShaderSource(*vertexShaderObject, 1, (const GLchar**) &vertexShaderSource, &vlength);
glShaderSource(*fragmentShaderObject, 1, (const GLchar**) &fragmentShaderSource, &flength);
glCompileShader(*vertexShaderObject);
glCompileShader(*fragmentShaderObject);
GLint compiled=0;
glGetShaderiv(*vertexShaderObject, GL_COMPILE_STATUS, &compiled);
if(!compiled) {
GLint len;
GLchar *log;
glGetShaderiv(*vertexShaderObject, GL_INFO_LOG_LENGTH, &len);
log =(GLchar*) malloc(len);
glGetShaderInfoLog(*vertexShaderObject, len, &len, log);
fprintf(stderr, "vertex shader error log: %s\n", log);
free(log);
}
glGetShaderiv(*fragmentShaderObject, GL_COMPILE_STATUS, &compiled);
if(!compiled) {
GLint len;
GLchar *log;
glGetShaderiv(*fragmentShaderObject, GL_INFO_LOG_LENGTH, &len);
log =(GLchar*) malloc(len);
glGetShaderInfoLog(*fragmentShaderObject, len, &len, log);
fprintf(stderr, "fragment shader error log: %s\n", log);
free(log);
}
*Program = glCreateProgram();
glAttachShader(*Program, *vertexShaderObject);
glAttachShader(*Program, *fragmentShaderObject);
glLinkProgram(*Program);
GLint linked = 0;
glGetProgramiv(*Program, GL_LINK_STATUS, &linked);
if(!linked) {
GLint len;
GLchar *log;
glGetProgramiv(*Program, GL_INFO_LOG_LENGTH, &len);
log =(GLchar*) malloc(len);
glGetProgramInfoLog(*Program, len, &len, log);
fprintf(stderr, "liner error log: %s\n", log);
free(log);
}
}
void App::gui() {
ImGuiIO& io = ImGui::GetIO();
if (ImGui::BeginMainMenuBar()) {
if (ImGui::BeginMenu("File")) {
if (ImGui::MenuItem("New", io.OSXBehaviors ? "Cmd+N" : "Ctrl+N")) {
newShader();
}
ImGui::Separator();
if (ImGui::MenuItem("Open...", io.OSXBehaviors ? "Cmd+O" : "Ctrl+O")) {
openShaderDialog();
}
if (ImGui::BeginMenu("Open Recent", !!recently_used_filepaths[most_recently_used_index])) {
for (int i = 0; i < (int)ARRAY_COUNT(recently_used_filepaths); i++) {
int index = (most_recently_used_index+i) % ARRAY_COUNT(recently_used_filepaths);
if (recently_used_filepaths[index]) {
char *menuitem_label = recently_used_filepaths[index];
// we might include libgen.h and use basename(3) but there is no windows support...
// TODO: test this on windows
char *basename = strrchr(menuitem_label, '/');
if (basename) menuitem_label = basename+1;
if (ImGui::MenuItem(menuitem_label)) {
loadShader(recently_used_filepaths[index]);
}
if (basename && ImGui::IsItemHovered()) {
ImGui::SetTooltip("%s", recently_used_filepaths[index]);
}
} else break;
}
ImGui::Separator();
if (ImGui::MenuItem("Clear Items")) {
clearRecentlyUsedFilepaths();
}
ImGui::EndMenu();
}
// TODO: move this to settings pane eventually
if (ImGui::MenuItem("Autoreload", nullptr, shader_file_autoreload)) {
shader_file_autoreload = !shader_file_autoreload;
writePreferences();
}
if (ImGui::MenuItem("Save", io.OSXBehaviors ? "Cmd+S" : "Ctrl+S", false, !!shader_filepath)) {
saveShader();
}
if (ImGui::IsItemHovered() && shader_filepath) {
ImGui::SetTooltip("%s", shader_filepath);
}
if (ImGui::MenuItem("Save As...", io.OSXBehaviors ? "Cmd+Shift+S" : "Ctrl+Shift+S", false, !!src_edit_buffer[0])) {
saveShaderDialog();
}
ImGui::Separator();
if (ImGui::MenuItem("Quit", io.OSXBehaviors ? "Cmd+Q" : "Ctrl+Q")) {
quit = true;
}
ImGui::EndMenu();
}
if (ImGui::BeginMenu("View")) {
if (ImGui::MenuItem("Fullscreen", io.OSXBehaviors ? "Cmd+F" : "Ctrl+F", windowIsFullscreen())) {
windowToggleFullscreen();
}
if (ImGui::MenuItem("Hide Controls", io.OSXBehaviors ? "Cmd+Shift+H" : "Ctrl+H", hide_gui)) {
hide_gui = !hide_gui;
}
ImGui::Separator();
if (ImGui::MenuItem(anim_play ? "Pause Animation" : "Play Animation", "Space")) {
toggleAnimation();
}
if (ImGui::MenuItem("Reset Animation")) {
frame_count = 0;
}
if (ImGui::MenuItem("Reset Camera")) {
resetCamera();
}
ImGui::EndMenu();
}
if (ImGui::BeginMenu("Tools")) {
if (ImGui::MenuItem("Recompile Shader", io.OSXBehaviors ? "Cmd+B" : "Ctrl+B", false, !!src_edit_buffer[0])) {
recompileShader();
}
ImGui::EndMenu();
}
if (ImGui::BeginMenu("Window")) {
if (ImGui::MenuItem("Uniforms", io.OSXBehaviors ? "Cmd+1" : "Ctrl+1", show_uniforms_window)) {
show_uniforms_window = !show_uniforms_window;
}
if (ImGui::MenuItem("Textures", io.OSXBehaviors ? "Cmd+2" : "Ctrl+2", show_textures_window)) {
show_textures_window = !show_textures_window;
}
ImGui::Separator();
if (ImGui::MenuItem("Camera", io.OSXBehaviors ? "Cmd+3" : "Ctrl+3", show_textures_window)) {
show_camera_window = !show_camera_window;
}
ImGui::Separator();
if (ImGui::MenuItem("Source editor", io.OSXBehaviors ? "Cmd+4" : "Ctrl+4", show_src_edit_window)) {
show_src_edit_window = !show_src_edit_window;
}
ImGui::EndMenu();
}
ImGui::EndMainMenuBar();
}
if (show_uniforms_window) {
if (ImGui::Begin("Uniforms", &show_uniforms_window)) {
if (ImGui::CollapsingHeader("Built-in uniform names")) {
ImGui::InputText("Time", u_time_name, sizeof(u_time_name));
ImGui::InputText("Resolution", u_resolution_name, sizeof(u_resolution_name));
ImGui::InputText("View to World Matrix", u_view_to_world_name, sizeof(u_view_to_world_name));
ImGui::InputText("World to View Matrix", u_world_to_view_name, sizeof(u_world_to_view_name));
}
ImGui::Separator();
if (!compile_error_log) {
ImGui::AlignFirstTextHeightToWidgets();
ImGui::Text("Data"); ImGui::SameLine();
if (ImGui::Button("Clear")) {
if (uniform_data) {
memset(uniform_data, 0, uniform_data_size);
}
} ImGui::SameLine();
if (ImGui::Button("Save")) {
writeUniformData();
} ImGui::SameLine();
if (ImGui::Button("Load")) {
readUniformData();
}
for (int i = 0; i < uniform_count; i++) {
// skip builtin uniforms
if (!strcmp(u_time_name, uniforms[i].name)) continue;
if (!strcmp(u_resolution_name, uniforms[i].name)) continue;
if (!strcmp(u_view_to_world_name, uniforms[i].name)) continue;
if (!strcmp(u_world_to_view_name, uniforms[i].name)) continue;
uniforms[i].gui();
}
}
}
ImGui::End();
}
if (show_textures_window) {
if (ImGui::Begin("Textures", &show_textures_window)) {
ImGui::Columns(2);
for (int tsi = 0; tsi < (int)ARRAY_COUNT(texture_slots); tsi++) {
TextureSlot *texture_slot = texture_slots + tsi;
ImGui::BeginGroup();
ImGui::PushID(tsi);
ImGui::Text("%d:", tsi);
ImGui::SameLine();
ImGui::PushStyleColor(ImGuiCol_Button, (ImVec4)ImColor::HSV(0.0f, 0.6f, 0.6f));
ImGui::PushStyleColor(ImGuiCol_ButtonHovered, (ImVec4)ImColor::HSV(0.0f, 0.7f, 0.7f));
ImGui::PushStyleColor(ImGuiCol_ButtonActive, (ImVec4)ImColor::HSV(0.0f, 0.8f, 0.8f));
if (ImGui::SmallButton("x")) texture_slot->clear();
ImGui::PopStyleColor(3);
if (ImGui::Button(" 2D ")) openImageDialog(texture_slot);
if (ImGui::Button("Cube")) openImageDialog(texture_slot, /*load_cube_cross*/true);
ImGui::PopID();
ImGui::EndGroup();
ImGui::SameLine();
//ImTextureID im_tex_id = (ImTextureID)(intptr_t)texture_slot->texture;
ImGui::Image((void*)texture_slot, ImVec2(64, 64));
if (ImGui::IsItemHovered() && texture_slot->image_filepath) {
ImGui::SetTooltip("%s\n%dx%d", texture_slot->image_filepath,
texture_slot->image_width, texture_slot->image_height);
}
if ((tsi & 1) && tsi + 1 != ARRAY_COUNT(texture_slots)) {
ImGui::Separator();
}
else {
ImGui::SameLine(); ImGui::Spacing();
}
ImGui::NextColumn();
}
ImGui::Columns(1);
}
ImGui::End();
}
if (show_camera_window) {
if (ImGui::Begin("Camera", &show_camera_window)) {
ImGui::DragFloat3("Location", camera_location.e);
ImGui::SliderAngle("Pitch", &camera_euler_angles.x);
ImGui::SliderAngle("Yaw", &camera_euler_angles.y);
ImGui::SliderAngle("Roll", &camera_euler_angles.z);
if (ImGui::Button("Reset")) resetCamera();
ImGui::End();
}
}
if (show_src_edit_window) {
if (ImGui::Begin("Source editor", &show_src_edit_window)) {
// TODO: add horizontal scrollbar
ImGui::InputTextMultiline("##Text buffer", src_edit_buffer, sizeof(src_edit_buffer)-1,
/*fullwidth, fullheight*/ImVec2(-1.0f, -1.0f), ImGuiInputTextFlags_AllowTabInput);
}
ImGui::End();
}
// overlay messages
int overlay_flags = ImGuiWindowFlags_NoTitleBar
| ImGuiWindowFlags_NoResize | ImGuiWindowFlags_AlwaysAutoResize
| ImGuiWindowFlags_NoBringToFrontOnFocus
| ImGuiWindowFlags_NoMove
| ImGuiWindowFlags_NoSavedSettings;
if (!shader_filepath && !src_edit_buffer[0]) {
ImGui::SetNextWindowPosCenter();
ImGui::Begin("Overlay", nullptr, ImVec2(0, 0), 0.3f, overlay_flags);
ImGui::AlignFirstTextHeightToWidgets(); // valign text to button
ImGui::Text("No fragment shader");
ImGui::SameLine();
if (ImGui::Button("Open")) openShaderDialog();
ImGui::SameLine();
if (ImGui::Button("New")) newShader();
ImGui::End();
} else if (compile_error_log) {
ImGui::SetNextWindowPosCenter();
ImGui::Begin("Overlay", nullptr, ImVec2(0, 0), 0.3f, overlay_flags);
ImGui::TextUnformatted(compile_error_log);
ImGui::End();
}
}
void preparePipelines()
{
VkPipelineInputAssemblyStateCreateInfo inputAssemblyState =
vkTools::initializers::pipelineInputAssemblyStateCreateInfo(
VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST,
0,
VK_FALSE);
VkPipelineRasterizationStateCreateInfo rasterizationState =
vkTools::initializers::pipelineRasterizationStateCreateInfo(
VK_POLYGON_MODE_FILL,
VK_CULL_MODE_NONE,
VK_FRONT_FACE_COUNTER_CLOCKWISE,
0);
VkPipelineColorBlendAttachmentState blendAttachmentState =
vkTools::initializers::pipelineColorBlendAttachmentState(
0xf,
VK_FALSE);
VkPipelineColorBlendStateCreateInfo colorBlendState =
vkTools::initializers::pipelineColorBlendStateCreateInfo(
1,
&blendAttachmentState);
VkPipelineDepthStencilStateCreateInfo depthStencilState =
vkTools::initializers::pipelineDepthStencilStateCreateInfo(
VK_TRUE,
VK_TRUE,
VK_COMPARE_OP_LESS_OR_EQUAL);
VkPipelineViewportStateCreateInfo viewportState =
vkTools::initializers::pipelineViewportStateCreateInfo(1, 1, 0);
VkPipelineMultisampleStateCreateInfo multisampleState =
vkTools::initializers::pipelineMultisampleStateCreateInfo(
VK_SAMPLE_COUNT_1_BIT,
0);
std::vector<VkDynamicState> dynamicStateEnables = {
VK_DYNAMIC_STATE_VIEWPORT,
VK_DYNAMIC_STATE_SCISSOR
};
VkPipelineDynamicStateCreateInfo dynamicState =
vkTools::initializers::pipelineDynamicStateCreateInfo(
dynamicStateEnables.data(),
dynamicStateEnables.size(),
0);
// Parallax mapping pipeline
// Load shaders
std::array<VkPipelineShaderStageCreateInfo, 2> shaderStages;
shaderStages[0] = loadShader("./../data/shaders/parallax/parallax.vert.spv", VK_SHADER_STAGE_VERTEX_BIT);
shaderStages[1] = loadShader("./../data/shaders/parallax/parallax.frag.spv", VK_SHADER_STAGE_FRAGMENT_BIT);
VkGraphicsPipelineCreateInfo pipelineCreateInfo =
vkTools::initializers::pipelineCreateInfo(
pipelineLayout,
renderPass,
0);
pipelineCreateInfo.pVertexInputState = &vertices.inputState;
pipelineCreateInfo.pInputAssemblyState = &inputAssemblyState;
pipelineCreateInfo.pRasterizationState = &rasterizationState;
pipelineCreateInfo.pColorBlendState = &colorBlendState;
pipelineCreateInfo.pMultisampleState = &multisampleState;
pipelineCreateInfo.pViewportState = &viewportState;
pipelineCreateInfo.pDepthStencilState = &depthStencilState;
pipelineCreateInfo.pDynamicState = &dynamicState;
pipelineCreateInfo.stageCount = shaderStages.size();
pipelineCreateInfo.pStages = shaderStages.data();
VkResult err = vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCreateInfo, nullptr, &pipelines.parallaxMapping);
assert(!err);
// Normal mapping (no parallax effect)
shaderStages[0] = loadShader("./../data/shaders/parallax/normalmap.vert.spv", VK_SHADER_STAGE_VERTEX_BIT);
shaderStages[1] = loadShader("./../data/shaders/parallax/normalmap.frag.spv", VK_SHADER_STAGE_FRAGMENT_BIT);
err = vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCreateInfo, nullptr, &pipelines.normalMapping);
assert(!err);
}
void preparePipelines()
{
VkResult err;
VkPipelineInputAssemblyStateCreateInfo inputAssemblyState =
vkTools::initializers::pipelineInputAssemblyStateCreateInfo(
VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST,
0,
VK_FALSE);
VkPipelineRasterizationStateCreateInfo rasterizationState =
vkTools::initializers::pipelineRasterizationStateCreateInfo(
VK_POLYGON_MODE_FILL,
VK_CULL_MODE_BACK_BIT,
VK_FRONT_FACE_CLOCKWISE,
0);
VkPipelineColorBlendAttachmentState blendAttachmentState =
vkTools::initializers::pipelineColorBlendAttachmentState(
0xf,
VK_FALSE);
VkPipelineColorBlendStateCreateInfo colorBlendState =
vkTools::initializers::pipelineColorBlendStateCreateInfo(
1,
&blendAttachmentState);
VkPipelineDepthStencilStateCreateInfo depthStencilState =
vkTools::initializers::pipelineDepthStencilStateCreateInfo(
VK_TRUE,
VK_TRUE,
VK_COMPARE_OP_LESS_OR_EQUAL);
VkPipelineViewportStateCreateInfo viewportState =
vkTools::initializers::pipelineViewportStateCreateInfo(1, 1, 0);
VkPipelineMultisampleStateCreateInfo multisampleState =
vkTools::initializers::pipelineMultisampleStateCreateInfo(
VK_SAMPLE_COUNT_1_BIT,
0);
std::vector<VkDynamicState> dynamicStateEnables = {
VK_DYNAMIC_STATE_VIEWPORT,
VK_DYNAMIC_STATE_SCISSOR,
VK_DYNAMIC_STATE_LINE_WIDTH
};
VkPipelineDynamicStateCreateInfo dynamicState =
vkTools::initializers::pipelineDynamicStateCreateInfo(
dynamicStateEnables.data(),
dynamicStateEnables.size(),
0);
// Tessellation pipeline
// Load shaders
std::array<VkPipelineShaderStageCreateInfo, 3> shaderStages;
shaderStages[0] = loadShader(getAssetPath() + "shaders/geometryshader/base.vert.spv", VK_SHADER_STAGE_VERTEX_BIT);
shaderStages[1] = loadShader(getAssetPath() + "shaders/geometryshader/base.frag.spv", VK_SHADER_STAGE_FRAGMENT_BIT);
shaderStages[2] = loadShader(getAssetPath() + "shaders/geometryshader/normaldebug.geom.spv", VK_SHADER_STAGE_GEOMETRY_BIT);
VkGraphicsPipelineCreateInfo pipelineCreateInfo =
vkTools::initializers::pipelineCreateInfo(
pipelineLayout,
renderPass,
0);
pipelineCreateInfo.pVertexInputState = &vertices.inputState;
pipelineCreateInfo.pInputAssemblyState = &inputAssemblyState;
pipelineCreateInfo.pRasterizationState = &rasterizationState;
pipelineCreateInfo.pColorBlendState = &colorBlendState;
pipelineCreateInfo.pMultisampleState = &multisampleState;
pipelineCreateInfo.pViewportState = &viewportState;
pipelineCreateInfo.pDepthStencilState = &depthStencilState;
pipelineCreateInfo.pDynamicState = &dynamicState;
pipelineCreateInfo.stageCount = shaderStages.size();
pipelineCreateInfo.pStages = shaderStages.data();
pipelineCreateInfo.renderPass = renderPass;
// Normal debugging pipeline
err = vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCreateInfo, nullptr, &pipelines.normals);
assert(!err);
// Solid rendering pipeline
// Shader
shaderStages[0] = loadShader(getAssetPath() + "shaders/geometryshader/mesh.vert.spv", VK_SHADER_STAGE_VERTEX_BIT);
shaderStages[1] = loadShader(getAssetPath() + "shaders/geometryshader/mesh.frag.spv", VK_SHADER_STAGE_FRAGMENT_BIT);
pipelineCreateInfo.stageCount = 2;
err = vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCreateInfo, nullptr, &pipelines.solid);
assert(!err);
}
GPGPU::GPGPU(int w, int h) : _initialized(0), _width(w), _height(h)
{
// Create a texture to store the framebuffer
glGenTextures(1, &_textureId);
glBindTexture(GL_TEXTURE_2D, _textureId);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, _width, _height, 0, GL_RGB, GL_FLOAT, 0);
_programId = glCreateProgram();
// Load fragment shader which will be used as computational kernel
std::string edgeFragSource2;
loadShader("fragment.glsl", edgeFragSource2);
// Create the fragment program
_fragmentShader = glCreateShader(GL_FRAGMENT_SHADER);
const char* source = edgeFragSource2.c_str();
glShaderSource(_fragmentShader, 1, &source, NULL);
glCompileShader(_fragmentShader);
glAttachShader(_programId, _fragmentShader);
// Link the shader into a complete GLSL program.
glLinkProgram(_programId);
// Check program
{
int infologLength = 0;
glGetProgramiv(_programId, GL_INFO_LOG_LENGTH, &infologLength);
if (infologLength > 0) {
char *infoLog = (char *)malloc(infologLength);
glGetProgramInfoLog(_programId, infologLength, NULL, infoLog);
printf("%s\n",infoLog);
free(infoLog);
}
}
// Get location of the uniform variables
_texUnitLoc = glGetUniformLocation(_programId, "texUnit");
_initializedLoc = glGetUniformLocation(_programId, "initialized");
// gpu
_timeLoc = glGetUniformLocation(_programId, "time");
_ck_start = std::clock();
_wSizeLoc = glGetUniformLocation(_programId, "wSize");
_wTypeLoc = glGetUniformLocation(_programId, "wType");
// gpu: sine params
_sinParamALoc = glGetUniformLocation(_programId, "gAi");
_sinParamDxLoc = glGetUniformLocation(_programId, "gDx");
_sinParamDyLoc = glGetUniformLocation(_programId, "gDy");
_sinParamWlLoc = glGetUniformLocation(_programId, "gwl");
_sinParamSpLoc = glGetUniformLocation(_programId, "gSp");
_sinParamCxLoc = glGetUniformLocation(_programId, "gCx");
_sinParamCyLoc = glGetUniformLocation(_programId, "gCy");
// gpu: config islands
setupIsland();
}
int main () {
// start GL context and O/S window using the GLFW helper library
if (!glfwInit ()) {
fprintf (stderr, "ERROR: could not start GLFW3\n");
return 1;
}
// uncomment these lines if on Apple OS X
glfwWindowHint (GLFW_CONTEXT_VERSION_MAJOR, 3);
glfwWindowHint (GLFW_CONTEXT_VERSION_MINOR, 2);
glfwWindowHint (GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);
glfwWindowHint (GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
GLFWwindow* window = glfwCreateWindow (640, 480, "Cube to Sphere", NULL, NULL);
if (!window) {
fprintf (stderr, "ERROR: could not open window with GLFW3\n");
glfwTerminate();
return 1;
}
GLFWwindow* window2 = glfwCreateWindow (640, 480, "Just checking", NULL, NULL);
if (!window2) {
fprintf (stderr, "ERROR: could not open window with GLFW3\n");
glfwTerminate();
return 1;
}
glfwMakeContextCurrent (window);
//start GLEW extension handler
glewExperimental = GL_TRUE;
glewInit ();
// get version info
const GLubyte* renderer = glGetString (GL_RENDERER); // get renderer string
const GLubyte* version = glGetString (GL_VERSION); // version as a string
printf ("Renderer: %s\n", renderer);
printf ("OpenGL version supported %s\n", version);
//CLGLUtils::init();
boost::compute::context context;
try {
context = boost::compute::opengl_create_shared_context();
} catch (std::exception e) {
std::cerr<<"Failed to initialize a CLGL context"<<e.what()<<std::endl;
exit(0);
}
// tell GL to only draw onto a pixel if the shape is closer to the viewer
glEnable (GL_DEPTH_TEST); // enable depth-testing
glDepthFunc (GL_LESS); // depth-testing interprets a smaller value as "closer"
// OTHER STUFF GOES HERE NEXT
float points[] = {
-1.0f, 1.0f, -1.0f,
-1.0f, -1.0f, -1.0f,
1.0f, -1.0f, -1.0f,
1.0f, -1.0f, -1.0f,
1.0f, 1.0f, -1.0f,
-1.0f, 1.0f, -1.0f,
-1.0f, -1.0f, 1.0f,
-1.0f, -1.0f, -1.0f,
-1.0f, 1.0f, -1.0f,
-1.0f, 1.0f, -1.0f,
-1.0f, 1.0f, 1.0f,
-1.0f, -1.0f, 1.0f,
1.0f, -1.0f, -1.0f,
1.0f, -1.0f, 1.0f,
1.0f, 1.0f, 1.0f,
1.0f, 1.0f, 1.0f,
1.0f, 1.0f, -1.0f,
1.0f, -1.0f, -1.0f,
-1.0f, -1.0f, 1.0f,
-1.0f, 1.0f, 1.0f,
1.0f, 1.0f, 1.0f,
1.0f, 1.0f, 1.0f,
1.0f, -1.0f, 1.0f,
-1.0f, -1.0f, 1.0f,
-1.0f, 1.0f, -1.0f,
1.0f, 1.0f, -1.0f,
1.0f, 1.0f, 1.0f,
1.0f, 1.0f, 1.0f,
-1.0f, 1.0f, 1.0f,
-1.0f, 1.0f, -1.0f,
-1.0f, -1.0f, -1.0f,
-1.0f, -1.0f, 1.0f,
1.0f, -1.0f, -1.0f,
1.0f, -1.0f, -1.0f,
-1.0f, -1.0f, 1.0f,
1.0f, -1.0f, 1.0f
};
GLuint vbo;
glGenBuffers (1, &vbo);
glBindBuffer (GL_ARRAY_BUFFER, vbo);
glBufferData (GL_ARRAY_BUFFER, 3 * 36 * sizeof (float), &points, GL_STATIC_DRAW);
GLuint vao;
glGenVertexArrays (1, &vao);
glBindVertexArray (vao);
glEnableVertexAttribArray (0);
glBindBuffer (GL_ARRAY_BUFFER, vbo);
glVertexAttribPointer (0, 3, GL_FLOAT, GL_FALSE, 0, NULL);
//Create Cube map
GLuint cube_map_texture;
create_cube_map ((resource_dir+"negz.jpg").c_str(), (resource_dir+"posz.jpg").c_str(), (resource_dir+"posy.jpg").c_str(), (resource_dir+"negy.jpg").c_str(), (resource_dir+"negx.jpg").c_str(), (resource_dir+"posx.jpg").c_str(), &cube_map_texture);
boost::shared_ptr<boost::compute::opengl_texture> cl_cube_map_texture;
try {
cl_cube_map_texture = boost::shared_ptr<boost::compute::opengl_texture>(new boost::compute::opengl_texture(context,GL_TEXTURE_2D_ARRAY,0,cube_map_texture,boost::compute::memory_object::mem_flags::read_only));
} catch ( const std::exception& e ) {
std::cerr << e.what() << std::endl;
}
const char* vertex_shader =
"#version 400\n"
"in vec3 vp;"
"uniform mat4 P, V;"
// "uniform vec3 vertOut;"
"out vec3 texcoords;"
"vec3 newP;"
"void main () {"
" texcoords = vp;"
// " vertOut = vp;"
" gl_Position = P * V * vec4 (vp, 1.0);"
"}";
const char* fragment_shader = loadShader(resource_dir+"fragmentShader.frag").c_str();
/*"#version 400\n"
"in vec3 texcoords;"
"uniform samplerCube cube_texture;"
"out vec4 frag_colour;"
"vec4 cubeToLatLon(samplerCube cubemap, vec3 inUV) {"
"vec3 cubmapTexCoords;"
//"cubmapTexCoords.x = inUV.x*sqrt(1 - ( (inUV.y * inUV.y)/2 ) - ( (inUV.z * inUV.z)/2 ) + ( ( (inUV.y * inUV.y) * (inUV.z * inUV.z))/3));"
"cubmapTexCoords.x = inUV.x;"
//"cubmapTexCoords.y= inUV.y*sqrt(1 - ( (inUV.z * inUV.z)/2 ) - ( (inUV.x * inUV.x)/2 ) + ( ( (inUV.z * inUV.z) * (inUV.x * inUV.x))/3));"
"cubmapTexCoords.y = inUV.y;"
"cubmapTexCoords.z = inUV.z*sqrt(1 - ( (inUV.x * inUV.x)/2 ) - ( (inUV.y * inUV.y)/2 ) + ( ( (inUV.x * inUV.x) * (inUV.y * inUV.y))/3));"
//"cubmapTexCoords.z = inUV.z;"
"return texture(cubemap, cubmapTexCoords);"
"}"
"void main () {"
//" frag_colour = texture (cube_texture, texcoords);"
" frag_colour = cubeToLatLon (cube_texture, texcoords);"
"}";*/
GLuint vs = glCreateShader (GL_VERTEX_SHADER);
glShaderSource (vs, 1, &vertex_shader, NULL);
glCompileShader (vs);
GLuint fs = glCreateShader (GL_FRAGMENT_SHADER);
glShaderSource (fs, 1, &fragment_shader, NULL);
glCompileShader (fs);
GLuint cube_sp = glCreateProgram ();
glAttachShader (cube_sp, fs);
glAttachShader (cube_sp, vs);
glLinkProgram (cube_sp);
//*-----------------------------Compile Shaders for second window - square --------*/
glfwMakeContextCurrent(window2);
//start GLEW extension handler
glewExperimental = GL_TRUE;
glewInit ();
glEnable (GL_DEPTH_TEST); // enable depth-testing
glDepthFunc (GL_LESS); // depth-testing interprets a smaller value as "closer"
float squarePoints[] =
{
-1.0f, 1.0f, -1.0f,
-1.0f, -1.0f, -1.0f,
1.0f, -1.0f, -1.0f,
1.0f, -1.0f, -1.0f,
1.0f, 1.0f, -1.0f,
-1.0f, 1.0f, -1.0f
};
GLfloat texcoords[] = {
0.0f, 0.0f,
1.0f, 0.0f,
1.0f, 1.0f,
1.0f, 1.0f,
0.0f, 1.0f,
0.0f, 0.0f
};
GLuint vbo_square;
glGenBuffers (1, &vbo_square);
glBindBuffer (GL_ARRAY_BUFFER, vbo_square);
glBufferData (GL_ARRAY_BUFFER, 3 * 6 * sizeof (float), &squarePoints, GL_STATIC_DRAW);
GLuint texcoords_vbo;
glGenBuffers (1, &texcoords_vbo);
glBindBuffer (GL_ARRAY_BUFFER, texcoords_vbo);
glBufferData (GL_ARRAY_BUFFER, 12 * sizeof (GLfloat), texcoords, GL_STATIC_DRAW);
GLuint vao_square;
glGenVertexArrays (1, &vao_square);
glBindVertexArray (vao_square);
glBindBuffer (GL_ARRAY_BUFFER, vbo_square);
glVertexAttribPointer (0, 3, GL_FLOAT, GL_FALSE, 0, NULL);
glBindBuffer (GL_ARRAY_BUFFER, texcoords_vbo);
glVertexAttribPointer (1, 2, GL_FLOAT, GL_FALSE, 0, NULL); // normalise!
glEnableVertexAttribArray (0);
glEnableVertexAttribArray (1);
GLuint square_sp = create_programme_from_files((resource_dir+"square.vert").c_str(), (resource_dir+"square.frag").c_str());
GLuint tex;
assert (load_texture ((resource_dir+"negz.jpg").c_str(), &tex));
//*----------------------------------------------------------------------------------*/
glfwMakeContextCurrent (window);
int cube_V_location = glGetUniformLocation (cube_sp, "V");
int cube_P_location = glGetUniformLocation (cube_sp, "P");
//int cube_vertOut = glGetUniformLocation (cube_sp, "vertOut");
/*-------------------------------CREATE GLOBAL CAMERA--------------------------------*/
#define ONE_DEG_IN_RAD (2.0 * M_PI) / 360.0 // 0.017444444
// input variables
float near = 0.1f; // clipping plane
float far = 100.0f; // clipping plane
float fovy = 80.0f; // 67 degrees
float aspect = (float)g_gl_width / (float)g_gl_height; // aspect ratio
proj_mat = perspective (fovy, aspect, near, far);
float cam_speed = 3.0f; // 1 unit per second
float cam_heading_speed = 50.0f; // 30 degrees per second
float cam_heading = 0.0f; // y-rotation in degrees
mat4 T = translate (identity_mat4 (), vec3 (-cam_pos.v[0], -cam_pos.v[1], -cam_pos.v[2]));
mat4 R = rotate_y_deg (identity_mat4 (), -cam_heading);
versor q = quat_from_axis_deg (-cam_heading, 0.0f, 1.0f, 0.0f);
view_mat = R * T;
// keep track of some useful vectors that can be used for keyboard movement
vec4 fwd (0.0f, 0.0f, -1.0f, 0.0f);
vec4 rgt (1.0f, 0.0f, 0.0f, 0.0f);
vec4 up (0.0f, 1.0f, 0.0f, 0.0f);
/*---------------------------SET RENDERING DEFAULTS---------------------------*/
glUseProgram (cube_sp);
glUniformMatrix4fv (cube_V_location, 1, GL_FALSE, R.m);
glUniformMatrix4fv (cube_P_location, 1, GL_FALSE, proj_mat.m);
// unique model matrix for each sphere
mat4 model_mat = identity_mat4 ();
glEnable (GL_DEPTH_TEST); // enable depth-testing
glDepthFunc (GL_LESS); // depth-testing interprets a smaller value as "closer"
glEnable (GL_CULL_FACE); // cull face
glCullFace (GL_BACK); // cull back face
glFrontFace (GL_CCW); // set counter-clock-wise vertex order to mean the front
glClearColor (0.2, 0.2, 0.2, 1.0); // grey background to help spot mistakes
glViewport (0, 0, g_gl_width, g_gl_height);
while (!glfwWindowShouldClose (window) && !glfwWindowShouldClose (window2)) {
// update timers
static double previous_seconds = glfwGetTime ();
double current_seconds = glfwGetTime ();
double elapsed_seconds = current_seconds - previous_seconds;
previous_seconds = current_seconds;
//_update_fps_counter (window);
// wipe the drawing surface clear
glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
// render a sky-box using the cube-map texture
glDepthMask (GL_FALSE);
glUseProgram (cube_sp);
glActiveTexture (GL_TEXTURE0);
glBindTexture (GL_TEXTURE_CUBE_MAP, cube_map_texture);
glBindVertexArray (vao);
glDrawArrays (GL_TRIANGLES, 0, 36);
glDepthMask (GL_TRUE);
//*---------------------------------Display for second window-------------------*/
glfwMakeContextCurrent (window2);
glUseProgram (square_sp);
int cubemap_vert = glGetUniformLocation (square_sp, "cubeMap_texcoords");
glEnable (GL_DEPTH_TEST); // enable depth-testing
glDepthFunc (GL_LESS); // depth-testing interprets a smaller value as "closer"
glEnable (GL_CULL_FACE); // cull face
glCullFace (GL_BACK); // cull back face
glFrontFace (GL_CCW); // set counter-clock-wise vertex order to mean the front
glClearColor (0.3, 0.2, 0.3, 1.0); // grey background to help spot mistakes
glViewport (0, 0, g_gl_width, g_gl_height);
glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glDepthMask (GL_FALSE);
glUseProgram (square_sp);
glBindVertexArray (vao_square);
glDrawArrays (GL_TRIANGLES, 0, 6);
glDepthMask (GL_TRUE);
//*------------------------------GO back to cubemap window--------------------*/
glfwMakeContextCurrent (window);
// update other events like input handling
glfwPollEvents ();
// control keys
bool cam_moved = false;
vec3 move (0.0, 0.0, 0.0);
float cam_yaw = 0.0f; // y-rotation in degrees
float cam_pitch = 0.0f;
float cam_roll = 0.0;
if (glfwGetKey (window, GLFW_KEY_A)) {
move.v[0] -= cam_speed * elapsed_seconds;
cam_moved = true;
print(move);
}
if (glfwGetKey (window, GLFW_KEY_D)) {
move.v[0] += cam_speed * elapsed_seconds;
cam_moved = true;
}
if (glfwGetKey (window, GLFW_KEY_Q)) {
move.v[1] += cam_speed * elapsed_seconds;
cam_moved = true;
}
if (glfwGetKey (window, GLFW_KEY_E)) {
move.v[1] -= cam_speed * elapsed_seconds;
cam_moved = true;
}
if (glfwGetKey (window, GLFW_KEY_W)) {
move.v[2] -= cam_speed * elapsed_seconds;
cam_moved = true;
}
if (glfwGetKey (window, GLFW_KEY_S)) {
move.v[2] += cam_speed * elapsed_seconds;
cam_moved = true;
}
if (glfwGetKey (window, GLFW_KEY_LEFT)) {
cam_yaw += cam_heading_speed * elapsed_seconds;
cam_moved = true;
versor q_yaw = quat_from_axis_deg (
cam_yaw, up.v[0], up.v[1], up.v[2]
);
q = q_yaw * q;
}
if (glfwGetKey (window, GLFW_KEY_RIGHT)) {
cam_yaw -= cam_heading_speed * elapsed_seconds;
cam_moved = true;
versor q_yaw = quat_from_axis_deg (
cam_yaw, up.v[0], up.v[1], up.v[2]
);
q = q_yaw * q;
}
if (glfwGetKey (window, GLFW_KEY_UP)) {
cam_pitch += cam_heading_speed * elapsed_seconds;
cam_moved = true;
versor q_pitch = quat_from_axis_deg (
cam_pitch, rgt.v[0], rgt.v[1], rgt.v[2]
);
q = q_pitch * q;
}
if (glfwGetKey (window, GLFW_KEY_DOWN)) {
cam_pitch -= cam_heading_speed * elapsed_seconds;
cam_moved = true;
versor q_pitch = quat_from_axis_deg (
cam_pitch, rgt.v[0], rgt.v[1], rgt.v[2]
);
q = q_pitch * q;
}
if (glfwGetKey (window, GLFW_KEY_Z)) {
cam_roll -= cam_heading_speed * elapsed_seconds;
cam_moved = true;
versor q_roll = quat_from_axis_deg (
cam_roll, fwd.v[0], fwd.v[1], fwd.v[2]
);
q = q_roll * q;
}
if (glfwGetKey (window, GLFW_KEY_C)) {
cam_roll += cam_heading_speed * elapsed_seconds;
cam_moved = true;
versor q_roll = quat_from_axis_deg (
cam_roll, fwd.v[0], fwd.v[1], fwd.v[2]
);
q = q_roll * q;
}
// update view matrix
if (cam_moved) {
cam_heading += cam_yaw;
// re-calculate local axes so can move fwd in dir cam is pointing
R = quat_to_mat4 (q);
fwd = R * vec4 (0.0, 0.0, -1.0, 0.0);
rgt = R * vec4 (1.0, 0.0, 0.0, 0.0);
up = R * vec4 (0.0, 1.0, 0.0, 0.0);
cam_pos = cam_pos + vec3 (fwd) * -move.v[2];
cam_pos = cam_pos + vec3 (up) * move.v[1];
cam_pos = cam_pos + vec3 (rgt) * move.v[0];
mat4 T = translate (identity_mat4 (), vec3 (cam_pos));
view_mat = inverse (R) * inverse (T);
//std::cout<<inverse(R).m<<std::endl;
// cube-map view matrix has rotation, but not translation
glUseProgram (cube_sp);
glUniformMatrix4fv (cube_V_location, 1, GL_FALSE, inverse (R).m);
}
if (GLFW_PRESS == glfwGetKey (window, GLFW_KEY_ESCAPE)) {
glfwSetWindowShouldClose (window, 1);
}
if (GLFW_PRESS == glfwGetKey (window2, GLFW_KEY_ESCAPE)) {
glfwSetWindowShouldClose (window2, 1);
}
// put the stuff we've been drawing onto the display
glfwSwapBuffers (window);
glfwMakeContextCurrent (window2);
glfwSwapBuffers (window2);
glfwMakeContextCurrent (window);
}
// close GL context and any other GLFW resources
glfwTerminate();
return 0;
}
void preparePipelines()
{
VkPipelineInputAssemblyStateCreateInfo inputAssemblyState =
vkTools::initializers::pipelineInputAssemblyStateCreateInfo(
VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST,
0,
VK_FALSE);
VkPipelineRasterizationStateCreateInfo rasterizationState =
vkTools::initializers::pipelineRasterizationStateCreateInfo(
VK_POLYGON_MODE_FILL,
VK_CULL_MODE_BACK_BIT,
VK_FRONT_FACE_CLOCKWISE,
0);
VkPipelineColorBlendAttachmentState blendAttachmentState =
vkTools::initializers::pipelineColorBlendAttachmentState(
0xf,
VK_FALSE);
VkPipelineColorBlendStateCreateInfo colorBlendState =
vkTools::initializers::pipelineColorBlendStateCreateInfo(
1,
&blendAttachmentState);
VkPipelineDepthStencilStateCreateInfo depthStencilState =
vkTools::initializers::pipelineDepthStencilStateCreateInfo(
VK_TRUE,
VK_TRUE,
VK_COMPARE_OP_LESS_OR_EQUAL);
VkPipelineViewportStateCreateInfo viewportState =
vkTools::initializers::pipelineViewportStateCreateInfo(1, 1, 0);
VkPipelineMultisampleStateCreateInfo multisampleState =
vkTools::initializers::pipelineMultisampleStateCreateInfo(
VK_SAMPLE_COUNT_1_BIT,
0);
std::vector<VkDynamicState> dynamicStateEnables = {
VK_DYNAMIC_STATE_VIEWPORT,
VK_DYNAMIC_STATE_SCISSOR
};
VkPipelineDynamicStateCreateInfo dynamicState =
vkTools::initializers::pipelineDynamicStateCreateInfo(
dynamicStateEnables.data(),
dynamicStateEnables.size(),
0);
// Pipeline for the meshes (armadillo, bunny, etc.)
// Load shaders
std::array<VkPipelineShaderStageCreateInfo, 2> shaderStages;
shaderStages[0] = loadShader(getAssetPath() + "shaders/vulkanscene/mesh.vert.spv", VK_SHADER_STAGE_VERTEX_BIT);
shaderStages[1] = loadShader(getAssetPath() + "shaders/vulkanscene/mesh.frag.spv", VK_SHADER_STAGE_FRAGMENT_BIT);
VkGraphicsPipelineCreateInfo pipelineCreateInfo =
vkTools::initializers::pipelineCreateInfo(
pipelineLayout,
renderPass,
0);
pipelineCreateInfo.pVertexInputState = &demoMeshes.inputState;
pipelineCreateInfo.pInputAssemblyState = &inputAssemblyState;
pipelineCreateInfo.pRasterizationState = &rasterizationState;
pipelineCreateInfo.pColorBlendState = &colorBlendState;
pipelineCreateInfo.pMultisampleState = &multisampleState;
pipelineCreateInfo.pViewportState = &viewportState;
pipelineCreateInfo.pDepthStencilState = &depthStencilState;
pipelineCreateInfo.pDynamicState = &dynamicState;
pipelineCreateInfo.stageCount = shaderStages.size();
pipelineCreateInfo.pStages = shaderStages.data();
VkResult err = vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCreateInfo, nullptr, &pipelines.models);
assert(!err);
// Pipeline for the logos
shaderStages[0] = loadShader(getAssetPath() + "shaders/vulkanscene/logo.vert.spv", VK_SHADER_STAGE_VERTEX_BIT);
shaderStages[1] = loadShader(getAssetPath() + "shaders/vulkanscene/logo.frag.spv", VK_SHADER_STAGE_FRAGMENT_BIT);
err = vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCreateInfo, nullptr, &pipelines.logos);
assert(!err);
// Pipeline for the sky sphere (todo)
rasterizationState.cullMode = VK_CULL_MODE_FRONT_BIT; // Inverted culling
depthStencilState.depthWriteEnable = VK_FALSE; // No depth writes
shaderStages[0] = loadShader(getAssetPath() + "shaders/vulkanscene/skybox.vert.spv", VK_SHADER_STAGE_VERTEX_BIT);
shaderStages[1] = loadShader(getAssetPath() + "shaders/vulkanscene/skybox.frag.spv", VK_SHADER_STAGE_FRAGMENT_BIT);
err = vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCreateInfo, nullptr, &pipelines.skybox);
assert(!err);
// Assign pipelines
demoMeshes.logos->pipeline = pipelines.logos;
demoMeshes.models->pipeline = pipelines.models;
demoMeshes.background->pipeline = pipelines.models;
demoMeshes.skybox->pipeline = pipelines.skybox;
}
int startOGLRendering()
{
if (checkOpenGLError(__FILE__, __LINE__)) {
fprintf(stderr,"OpenGL error while initializing scene\n");
}
glEnable(GL_DEPTH_TEST); /* enable depth buffering */
glDepthFunc(GL_LESS); /* pedantic, GL_LESS is the default */
glDepthMask(GL_TRUE);
glClearDepth(1.0); /* pedantic, 1.0 is the default */
//HQ settings
glEnable(GL_NORMALIZE);
glShadeModel(GL_SMOOTH);
glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST);
glHint(GL_POINT_SMOOTH_HINT, GL_NICEST);
glHint(GL_LINE_SMOOTH_HINT, GL_NICEST);
glHint(GL_POLYGON_SMOOTH_HINT, GL_NICEST);
if (checkOpenGLError(__FILE__, __LINE__)) {
fprintf(stderr,"OpenGL error while initializing HQ settings\n");
}
/* frame buffer clears should be to black */
glClearColor(0.0, 0.0, 0.0, 0.0);
/* set up projection transform */
glMatrixMode(GL_PROJECTION);
updateProjectionMatrix();
if (checkOpenGLError(__FILE__, __LINE__))
{
fprintf(stderr,"OpenGL error after updating projection matrix\n");
}
/* establish initial viewport */
/* pedantic, full window size is default viewport */
#warning "GL_COLOR does not even exist"
//glEnable(GL_COLOR);
//if (checkOpenGLError(__FILE__, __LINE__)) { fprintf(stderr,"OpenGL error after enabling color \n"); }
glEnable(GL_COLOR_MATERIAL);
if (checkOpenGLError(__FILE__, __LINE__)) {
fprintf(stderr,"OpenGL error after enabling color material\n");
}
#if USE_LIGHTS
glEnable(GL_LIGHT0);
glEnable(GL_LIGHTING);
if (checkOpenGLError(__FILE__, __LINE__)) {
fprintf(stderr,"OpenGL error after enabling lighting\n");
}
glLightfv(GL_LIGHT0, GL_AMBIENT, light_ambient);
glLightfv(GL_LIGHT0, GL_DIFFUSE, light_diffuse);
glLightfv(GL_LIGHT0, GL_SPECULAR, light_specular);
glLightfv(GL_LIGHT0, GL_POSITION, light_position);
if (checkOpenGLError(__FILE__, __LINE__)) {
fprintf(stderr,"OpenGL error after setting up lights\n");
}
GLenum faces=GL_FRONT;//GL_FRONT_AND_BACK;
glMaterialfv(faces, GL_AMBIENT, mat_ambient);
glMaterialfv(faces, GL_DIFFUSE, mat_diffuse);
glMaterialfv(faces, GL_SPECULAR, mat_specular);
glMaterialfv(faces, GL_SHININESS, mat_shininess); // <- this was glMateriali
if (checkOpenGLError(__FILE__, __LINE__)) {
fprintf(stderr,"OpenGL error after setting up Front/Back lights\n");
}
#else
fprintf(stderr,"Please note that lighting is disabled via the USE_LIGHTS precompiler define\n");
#endif // USE_LIGHTS
if ( ( selectedFragmentShader != 0) || ( selectedVertexShader != 0 ) )
{
loadedShader = loadShader(selectedVertexShader,selectedFragmentShader);
}
//This is not needed -> :P glCullFace(GL_FRONT_AND_BACK);
//Enable Culling
if (doCulling)
{
glFrontFace(GL_CCW); //GL_CW / GL_CCW
if (checkOpenGLError(__FILE__, __LINE__)) {
fprintf(stderr,"OpenGL error glFrontFace(GL_CCW); \n");
}
glCullFace(GL_BACK);
if (checkOpenGLError(__FILE__, __LINE__)) {
fprintf(stderr,"OpenGL error glCullFace(GL_BACK); \n");
}
glEnable(GL_CULL_FACE);
if (checkOpenGLError(__FILE__, __LINE__)) {
fprintf(stderr,"OpenGL error glEnable(GL_CULL_FACE); \n");
}
}
}