DeferredRenderEngine::DeferredRenderEngine(Scene &scene, RenderTarget &finalTarget, RenderView &finalView)
: scene(scene)
, target(finalTarget)
, view(finalView)
, color(finalTarget.width, finalTarget.height, GL_RGBA32F)
, depth(finalTarget.width, finalTarget.height, GL_RGBA32F)
, normal(finalTarget.width, finalTarget.height, GL_RGBA32F)
, other(finalTarget.width, finalTarget.height, GL_RGBA32F)
, perlin(TextureDeserializer("perlin").deserialize())
, random(TextureDeserializer("random").deserialize())
, initialR(finalTarget.width, finalTarget.height, true)
, initial(ShaderProgram(initialVS, initialGS, initialFS, invecs), scene, initialR, view)
, ambient(ShaderProgram(ambientVS, 0, ambientFS, invecs), Model::Square(), target, nullView)
{
initialR.AddTarget(color);
initialR.AddTarget(depth);
initialR.AddTarget(normal);
initialR.AddTarget(other);
initial.AddTexture("perlin", *perlin);
initial.AddTexture("random", *random);
ambient.AddTexture("color", color);
ambient.AddTexture("depth", depth);
ambient.AddTexture("normal", normal);
ambient.AddTexture("other", other);
ambient.AddTexture("random", *random);
}
water::water()
: material_(float4(0.4f, 0.4f, 0.4f, 1.0f),
float4(0.1f, 0.1f, 0.1f, 1.0f),
float4(0.6f, 0.6f, 0.6f, 1.0f),
0.9f) {
render_prog_ = ShaderProgram("Water.vert", "Water.frag");
sim_prog_ = ShaderProgram("Quad.vert", "WaterSimStep.frag");
normal_prog_ = ShaderProgram("Quad.vert", "WaterNormal.frag");
water_mesh_ = new SimpleMesh(render_prog_.program, 256, SimpleMesh::PLANE, 0.999999f);
full_screen_quad_ = new FullScreenQuad();
grid_size_x_ = 256;
grid_size_z_ = 256;
for(int i = 0; i < 3; i++)
pos_tex_[i] = new RenderableTexture2D(GL_R32F, grid_size_x_, grid_size_z_);
norm_tex_ = new RenderableTexture2D(GL_RGB16F, grid_size_x_, grid_size_z_);
a_ = 0;
b_ = 1;
c_ = 2;
GLint old_viewport[4];
glGetIntegerv(GL_VIEWPORT, old_viewport);
glViewport(0, 0, grid_size_x_, grid_size_z_);
glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
for(int i = 0; i < 3; i++) {
pos_tex_[i]->BeginRenderingToThisTexture();
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
pos_tex_[i]->EndRenderingToThisTexture();
}
norm_tex_->BeginRenderingToThisTexture();
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
norm_tex_->EndRenderingToThisTexture();
glViewport(old_viewport[0], old_viewport[1], old_viewport[2], old_viewport[3]);
float4x4 rotation_matrix, scale_matrix, translate_matrix;
float4x4 transform_matrix1;
glusScalef(scale_matrix.L(), 10, 10, 10);
glusTranslatef(translate_matrix.L(), 0,0,0);
glusMultMatrixf(object_matrix_.L(), translate_matrix.L(), scale_matrix.L());
//glusMultMatrixf(object_matrix_.L(), scale_matrix.L(), translate_matrix.L());
glusInverseMatrixf(inversed_object_matrix_.L(), object_matrix_.L());
}
void createLoadingScreen(const std::string &file_name, GLFWwindow *window) {
auto program_id = ShaderProgram("src/shaders/vert_texture.glsl", "src/shaders/frag_texture.glsl");
glUseProgram(program_id);
InitializeGeometry(program_id);
FileLoader::TGAFILE_t tgafile;
FileLoader::LoadTGAFile(file_name.c_str(), &tgafile);
std::vector<char> buffer(tgafile.imageData, tgafile.imageData + tgafile.imageWidth * tgafile.imageHeight * (tgafile.bitCount / 8));
GLuint texture_id;
glGenTextures(1, &texture_id);
glBindTexture(GL_TEXTURE_2D, texture_id);
// Set mipmaps
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 1500, 843, 0, GL_RGB, GL_UNSIGNED_BYTE, buffer.data());
auto texture_attrib = glGetUniformLocation(program_id, "Texture");
glUniform1i(texture_attrib, 0);
glActiveTexture(GL_TEXTURE0 + 0);
glBindTexture(GL_TEXTURE_2D, texture_id);
glClearColor(.5f,.5f,.5f,0);
// Clear depth and color buffers
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
// Draw triangles using the program
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
glfwSwapBuffers(window);
//glfwPollEvents();
}
AnimatedBillboard::AnimatedBillboard(std::string animationFilePath)
: m_billboard("nanaka/models/billboard.nmdl")
, m_asset(g_resourceManager->Acquire<BillboardAnimationResource>(
animationFilePath))
{
if (!m_asset.IsValid())
{
return;
}
Material material;
material.SetShaderProgram(ShaderProgram("nanaka/shaders/scaleoffset.nsp"));
material.SetTexture(Texture(m_asset.GetResource()->m_textureAsset));
material.SetTransparent(true);
material.SetColor(Vec4f(1.0f));
for (size_t i = 0; i < m_asset.GetResource()->m_times.size(); ++i)
{
material.SetTexcoordsScale(
m_asset.GetResource()->m_texcoordsScales.at(i));
material.SetTexcoordsOffset(
m_asset.GetResource()->m_texcoordsOffsets.at(i));
auto ms = m_asset.GetResource()->m_times.at(i);
m_materialAnimation.AddKeyframe(
ms, material, Interpolation<Material>::Flat());
}
m_materialAnimation.ResetAnimation();
}
void GameOfLifeWorldRenderer::initializeShaders()
{
VertexShader vertexShader(
"#version 330 core\n"
"layout (location = 0) in vec2 position;\n"
"layout (location = 1) in vec2 offset;\n"
"layout (location = 2) in vec3 color;\n"
"out vec3 fColor;\n"
"void main()\n"
"{\n"
" gl_Position = vec4(position + offset, 0.0f, 1.0f);\n"
" fColor = color;\n"
"}\n"
);
FragmentShader fragmentShader(
"#version 330 core\n"
"in vec3 fColor;\n"
"out vec4 color;\n"
"void main()\n"
"{\n"
" color = vec4(fColor, 1.0f);\n"
"}\n"
);
program = ShaderProgram(vertexShader, fragmentShader);
}
MaterialData *NmtReader::loadV1(const char *data, void *) {
Version1Header header;
memcpy(&header, data, sizeof(Version1Header));
if(header.version != 1) {
logMsg("Invalid material version", ErrorLog);
}
MaterialData *mat = new MaterialData();
if(header.renderDataOffset != 0) {
memcpy(&mat->render, data + header.renderDataOffset, sizeof(uint32));
}
if(header.shaderLen) {
core::String shader(data + header.shaderCodeOffset, header.shaderLen);
mat->prog = ShaderProgram(new Shader<FragmentShader>(shader));
}
for(uint i = 0; i != 4; i++) {
uint offset = header.texHeaderOffset[i];
if(offset) {
Version1TexHeader h;
memcpy(&h, data + offset, sizeof(Version1TexHeader));
core::String texName(data + offset, h.nameLen);
mat->surface.textures[i] = Texture(ImageLoader::load<core::String>(texName), true);
}
}
return mat;
}
NmtReader::NmtReader() {
addReader(FragShader, [](const char *data, uint offset, MaterialData *mat, void *) {
logMsg("shader");
uint length = 0;
memcpy(&length, data + offset, sizeof(uint));
if(length) {
core::String shader(data + offset + sizeof(uint), length);
mat->prog = ShaderProgram(new Shader<FragmentShader>(shader));
}
});
addReader(RenderData, [](const char *data, uint offset, MaterialData *mat, void *) {
logMsg("data");
memcpy(&mat->render, data + offset, sizeof(mat->render));
});
addReader(TextureName, [](const char *data, uint offset, MaterialData *mat, void *) {
logMsg("texture");
uint length = 0;
memcpy(&length, data + offset, sizeof(uint));
if(length) {
uint id = 0;
memcpy(&id, data + offset + sizeof(uint), sizeof(uint));
core::String texName(data + offset + 2 * sizeof(uint), length);
mat->surface.textures[id] = Texture(ImageLoader::load<core::String>(texName), true);
}
});
}
GLContext *GLContext::getContext() {
static GLContext *ct = 0;
if(!ct) {
ct = new GLContext();
ShaderProgram().bind();
MaterialRenderData().bind();
}
return ct;
}
FireParticleSystem::FireParticleSystem(int a_particlesNum)
{
for(int i=0;i<2;i++)
{
m_posAndSizeBuffers[i] = -1;
m_velAndHPBuffers[i] = -1;
m_drawVAOs[i] = -1;
}
m_vertexPosTBO = -1;
m_particlesNum = 0;
m_currPinPongId = 0;
m_pFogTexture = NULL;
glGenBuffers(2, m_posAndSizeBuffers); CHECK_GL_ERRORS;
glGenBuffers(2, m_velAndHPBuffers); CHECK_GL_ERRORS;
glGenBuffers(2, m_randBuffers); CHECK_GL_ERRORS;
glGenTextures(1, &m_vertexPosTBO);
SetParticlesNum(a_particlesNum);
Init(); // dispatching call
m_renderProgram = ShaderProgram("../ParticleSystem/Particle.vert", "../ParticleSystem/FireParticle.geom", "../ParticleSystem/FireParticle.frag");
m_animateProgram = ShaderProgram("../ParticleSystem/FireParticlePhysics.vert");
const GLchar* names[3] = {"newPosAndSize", "newVelAndHp", "outRndSeed"};
glTransformFeedbackVaryings (m_animateProgram.program, 3, names, GL_SEPARATE_ATTRIBS); CHECK_GL_ERRORS;
if(!m_animateProgram.Link())
throw std::runtime_error("can not relink program after glTransformFeedbackVaryings");
CreateBuffers(m_renderProgram.program, m_animateProgram.program);
//m_pFogTexture = new Texture2D("../data/fog.bmp");
//m_pFogTexture = new Texture2D("../data/particle.tga");
m_pFogTexture = new Texture2D("../data/fire_texturemap_small_grey.bmp");
m_pFullScreenQuad = new FullScreenQuad();
m_lastDeltaTime = 0.0f;
m_windChangeTime = 0.0f;
}
PointLightRenderPass::PointLightRenderPass(Texture &depth, Texture &normals, Texture &color, PointLight &light, RenderView &view, RenderTarget &output)
: depth(depth)
, normals(normals)
, color(color)
, light(light)
, render(ShaderProgram(noneVS, 0, pointLightFS, invecs), Model::Square(), output, view)
{
render.AddTexture("depth", depth);
render.AddTexture("normal", normals);
render.AddTexture("color", color);
}
MaterialData CompiledMaterial::getMaterial() const {
MaterialData data;
String frag = core::String(getShader().toStdString());
data.prog = ShaderProgram(new Shader<FragmentShader>(frag));
for(int i = 0; i != samplers.size(); i++) {
data.surface.textures[i] = samplers[i].texture;
}
return data;
}
ShaderProgram setup()
{
SDL_Init(SDL_INIT_VIDEO);
displayWindow = SDL_CreateWindow("Assignment 2 - Sergey Smirnov", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 1280, 720, SDL_WINDOW_OPENGL);
SDL_GLContext context = SDL_GL_CreateContext(displayWindow);
SDL_GL_MakeCurrent(displayWindow, context);
#ifdef _WINDOWS
glewInit();
#endif
glViewport(0, 0, 1280, 720);
return ShaderProgram(RESOURCE_FOLDER"vertex_textured.glsl", RESOURCE_FOLDER"fragment_textured.glsl");
}
static Program make(void)
{
const GLchar* shader_source =
"#version 150\n"
"uniform mat4 CameraMatrix, ModelMatrix;"
"uniform mat4 LightProjMatrix;"
"uniform mat2 TextureMatrix;"
"uniform vec3 CameraPosition, LightPosition;"
"uniform vec4 ClipPlane;"
"uniform float ClipDirection;"
"in vec4 Position;"
"in vec3 Normal;"
"in vec3 Tangent;"
"in vec2 TexCoord;"
"out gl_PerVertex {"
" vec4 gl_Position;"
" float gl_ClipDistance[];"
"};"
"out vec3 vertNormal;"
"out vec3 vertTangent;"
"out vec3 vertBitangent;"
"out vec3 vertLightDir;"
"out vec3 vertViewDir;"
"out vec2 vertTexCoord;"
"out vec4 vertLightTexCoord;"
"void main(void)"
"{"
" gl_Position = "
" ModelMatrix *"
" Position;"
" gl_ClipDistance[0] = "
" ClipDirection* "
" dot(ClipPlane, gl_Position);"
" vertLightDir = LightPosition - gl_Position.xyz;"
" vertViewDir = CameraPosition - gl_Position.xyz;"
" vertNormal = (ModelMatrix * vec4(Normal, 0.0)).xyz;"
" vertTangent = (ModelMatrix * vec4(Tangent, 0.0)).xyz;"
" vertBitangent = cross(vertNormal, vertTangent);"
" vertTexCoord = TextureMatrix * TexCoord;"
" vertLightTexCoord = LightProjMatrix* gl_Position;"
" gl_Position = CameraMatrix * gl_Position;"
"}";
return ShaderProgram(
ShaderType::Vertex,
shader_source,
ObjectDesc("Transform")
);
}
void Demo::initGraphics() {
this->window.makeCurrent();
FragmentShader f("res/screen.frag");
VertexShader v("res/screen.vert");
this->p = ShaderProgram(f, v);
this->p["P"] = glm::perspective(45.0f, (float)this->window.width / (float)this->window.height, 0.1f, 1000.0f);
//this->p["V"] = c.viewMatrix();
//this->p["M"] = glm::translate(glm::mat4(1.0f), boxPosition);
/*this->t = Texture("res/cubemap.png");
this->p["tex"] = t;
this->m = Model("res/cube.obj", this->p, "vertexPosition", "vertexNormal", "vertexUV");*/
}
ShaderProgram setup()
{
Mix_OpenAudio(44100, MIX_DEFAULT_FORMAT, 2, 4096);
SDL_Init(SDL_INIT_VIDEO);
displayWindow = SDL_CreateWindow("Purple Pong!", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 1280, 720, SDL_WINDOW_OPENGL);
SDL_GLContext context = SDL_GL_CreateContext(displayWindow);
SDL_GL_MakeCurrent(displayWindow, context);
#ifdef _WINDOWS
glewInit();
#endif
glViewport(0, 0, 1280, 720);
return ShaderProgram(RESOURCE_FOLDER"vertex_textured.glsl", RESOURCE_FOLDER"fragment_textured.glsl");
}
static Program make(void)
{
const GLchar* shader_source =
"#version 150\n"
"uniform mat4 CameraMatrix, ModelMatrix;"
"uniform mat4 LightProjMatrix;"
"uniform mat2 TextureMatrix;"
"uniform vec3 CameraPosition, LightPosition;"
"in vec4 Position;"
"in vec3 Normal;"
"in vec2 TexCoord;"
"out gl_PerVertex {"
" vec4 gl_Position;"
"};"
"out float vertNoise;"
"out vec3 vertNormal;"
"out vec3 vertLightDir, vertViewDir;"
"out vec2 vertTexCoord;"
"out vec4 vertLightTexCoord;"
"void main(void)"
"{"
" gl_Position = "
" ModelMatrix *"
" Position;"
" vertNoise = noise1(Position.x+Position.y+Position.z);"
" vertLightDir = LightPosition - gl_Position.xyz;"
" vertViewDir = CameraPosition - gl_Position.xyz;"
" vertNormal = (ModelMatrix * vec4(Normal, 0.0)).xyz;"
" vertTexCoord = TextureMatrix * TexCoord;"
" vertLightTexCoord = LightProjMatrix* gl_Position;"
" gl_Position = CameraMatrix * gl_Position;"
"}";
return ShaderProgram(
ShaderType::Vertex,
shader_source,
ObjectDesc("Transform")
);
}
pool::pool(GLfloat floor_height, GLfloat left_wall_coord, GLfloat right_wall_coord, GLfloat front_wall_coord, GLfloat back_wall_coord)
: material_(float4(0.45f, 0.45f, 0.45f, 1.0f),
float4(0.1f, 0.1f, 0.1f, 1.0f),
float4(0.01f, 0.01f, 0.01f, 1.0f),
0.01f) {
render_prog_ = ShaderProgram("Room.vert", "Room.frag");
pool_mesh_ = new SimpleMesh(render_prog_ .program, 256, SimpleMesh::PLANE, 1.0f);
floor_tex_ = new Texture2D("pool_texture.bmp");
wall_coord_[FLOOR] = float3(0, floor_height, 0);
wall_coord_[LEFT_WALL] = float3(left_wall_coord, 0, 0);
wall_coord_[RIGHT_WALL] = float3(right_wall_coord, 0, 0);
wall_coord_[FRONT_WALL] = float3(0, 0, front_wall_coord);
wall_coord_[BACK_WALL] = float3(0, 0, back_wall_coord);
init_object_matrix(FLOOR, 10, 10, 10, 0, floor_height, 0, 0, 0);
init_object_matrix(LEFT_WALL, GLfloat(abs(floor_height / 2)), 10, 10, left_wall_coord, GLfloat(floor_height / 2.0), 0, 0, 90);
init_object_matrix(RIGHT_WALL, GLfloat(abs(floor_height / 2)), 10, 10, right_wall_coord, GLfloat(floor_height / 2.0), 0, 0, -90);
init_object_matrix(FRONT_WALL, 10, 10, abs(floor_height / 2), 0, GLfloat(floor_height / 2.0), front_wall_coord, 90, 0);
init_object_matrix(BACK_WALL, 10, 10, abs(floor_height / 2), 0, GLfloat(floor_height / 2.0), back_wall_coord, -90, 0);
}
TileBatch::TileBatch (uint16 capacity, const math::vec2& tile_size)
: m_capacity(capacity)
, m_tileSize(tile_size)
{
this->blend.enabled = true;
std::ostringstream vert;
vert << "#version 330 core\n"
//
<< "layout (location = " << VA_POS_INDEX << ") in vec4 v_pos;\n"
<< "layout (location = " << VA_UV_INDEX << ") in vec2 v_uv;\n"
<< "layout (location = " << VA_COLOR_INDEX << ") in vec4 v_color;\n"
//
<< "uniform mat4 " << U_PROJ_XF << ";\n"
//
<< "out vertex_attributes\n"
<< "{\n"
<< " vec2 uv;\n"
<< " vec4 color;\n"
<< "} vertex;\n"
//
<< "void main()\n"
<< "{\n"
<< " vertex.uv = v_uv;\n"
<< " vertex.color = v_color;\n"
<< " gl_Position = " << U_PROJ_XF << " * v_pos;\n"
<< "}\n";
std::ostringstream frag;
frag << "#version 330 core\n"
//
<< "layout (location = 0) out vec4 color;\n"
//
<< "uniform sampler2D " << U_SAMPLER << ";\n"
//
<< "in vertex_attributes\n"
<< "{\n"
<< " vec2 uv;\n"
<< " vec4 color;\n"
<< "} vertex;\n"
//
<< "void main()\n"
<< "{\n"
<< " color = vertex.color * texture(" << U_SAMPLER << ", vertex.uv);\n"
<< "}\n";
m_shader = ShaderProgram(vert.str(), frag.str());
// TileBatch implements it's buffer object streaming using the orphaning
// technique, which means for every frame we ask OpenGL to give us a new buffer.
// Since we request the same size, it's likely (though not guaranteed) that
// no allocation will take place. The major drawback of this approach is
// is it's dependent on the implementation, so performance may differ.
// https://www.opengl.org/wiki/Buffer_Object_Streaming#Buffer_re-specification
m_vao = opengl::CreateVertexArray();
opengl::BindVertexArray(m_vao);
// VBO
m_vbo = opengl::CreateBuffer();
opengl::BindBuffer(GL_ARRAY_BUFFER, m_vbo);
std::ptrdiff_t vbo_size = m_capacity * TILE_SIZE;
opengl::SetBufferData(GL_ARRAY_BUFFER, vbo_size, nullptr, GL_DYNAMIC_DRAW);
opengl::EnableVertexAttribute(VA_POS_INDEX);
opengl::VertexAttribPointer(VA_POS_INDEX,
3,
GL_FLOAT,
false,
VERTEX_SIZE,
reinterpret_cast<void*>(offsetof(tile_vertex, pos)));
opengl::EnableVertexAttribute(VA_UV_INDEX);
opengl::VertexAttribPointer(VA_UV_INDEX,
2,
GL_FLOAT,
false,
VERTEX_SIZE,
reinterpret_cast<void*>(offsetof(tile_vertex, uv)));
opengl::EnableVertexAttribute(VA_COLOR_INDEX);
opengl::VertexAttribPointer(VA_COLOR_INDEX,
4,
GL_UNSIGNED_BYTE,
true,
VERTEX_SIZE,
reinterpret_cast<void*>(offsetof(tile_vertex, color)));
opengl::UnbindBuffers(GL_ARRAY_BUFFER);
// IBO
m_ibo = opengl::CreateBuffer();
opengl::BindBuffer(GL_ELEMENT_ARRAY_BUFFER, m_ibo);
size_t ibo_count = m_capacity * 6;
size_t ibo_size = ibo_count * sizeof(uint32);
uint32* ibo_data = (uint32*)RDGE_MALLOC(ibo_size, memory_bucket_graphics);
if (RDGE_UNLIKELY(!ibo_data))
{
RDGE_THROW("Memory allocation failed");
}
for (uint32 i = 0, idx = 0, offset = 0;
i < m_capacity;
i++, idx = i * 6, offset = i * 4)
{
ibo_data[idx] = offset;
ibo_data[idx + 1] = offset + 1;
ibo_data[idx + 2] = offset + 2;
ibo_data[idx + 3] = offset + 2;
ibo_data[idx + 4] = offset + 3;
ibo_data[idx + 5] = offset;
}
opengl::SetBufferData(GL_ELEMENT_ARRAY_BUFFER, ibo_size, ibo_data, GL_STATIC_DRAW);
opengl::UnbindBuffers(GL_ELEMENT_ARRAY_BUFFER);
RDGE_FREE(ibo_data, memory_bucket_graphics);
opengl::UnbindVertexArrays();
DLOG() << "TileBatch[" << this << "]"
<< " capacity=" << m_capacity
<< " tile_size=" << m_tileSize
<< " vao[" << m_vao << "]"
<< " vbo[" << m_vbo << "].size=" << vbo_size
<< " ibo[" << m_ibo << "].size=" << ibo_size;
}
int main(int argc, char *argv[])
{
//start context
if (!glfwInit())
{
fprintf(stderr, "Error, could not start GLFW3\n");
return 1;
}
else
{
fprintf(stderr, "GLFW initialized properly.");
}
//Forward compatibility from version 3.2.
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);
glfwWindowHint(GLFW_SAMPLES, 4); //Anti aliasing (4 passes)
//start logs
Logger::restartLog(GL_LOG_FILE);
glfwSetErrorCallback(glfwErrorCallback);
GLFWmonitor* monitor = glfwGetPrimaryMonitor();
const GLFWvidmode* mode = glfwGetVideoMode(monitor);
//init window with primary monitor resolution
//Set these modes for a fullscreen window and don't for classic fullscreen:
/*glfwWindowHint(GLFW_RED_BITS, mode->redBits);
glfwWindowHint(GLFW_GREEN_BITS, mode->greenBits);
glfwWindowHint(GLFW_BLUE_BITS, mode->blueBits);
glfwWindowHint(GLFW_REFRESH_RATE, mode->refreshRate);*/
//------------------------------------------------
//GLFWwindow * window = glfwCreateWindow(mode->width, mode->height, "Tutorial 1: Draw a triangle", monitor, NULL); //Fullscreen
GLFWwindow * window = glfwCreateWindow(800, 600, "Tutorial 1: Draw a triangle", NULL, NULL); //Not Fullscreen
//if window initialisation failed
if (!window)
{
fprintf(stderr, "Could not open window with GLFW3\n");
glfwTerminate();
return 1;
}
glfwMakeContextCurrent(window);
glfwSetWindowSizeCallback(window, glfwWindowSizeCallback);
//start glew extension handler;
glewExperimental = GL_TRUE;
glewInit();
//get version info
const GLubyte * renderer = glGetString(GL_RENDERER);
const GLubyte * version = glGetString(GL_VERSION);
//Log informations
Logger::printToLog(GL_LOG_FILE, "Starting GLFW: %s \n", glfwGetVersionString());
logGlParams();
glEnable(GL_DEPTH_TEST);
glDepthFunc(GL_LESS);
//draw triangle
initTriangles();
Shader vertex = Shader("vertex.vert", GL_VERTEX_SHADER);
Shader frag_1 = Shader("frag1.frag", GL_FRAGMENT_SHADER);
Shader frag_2 = Shader("frag2.frag", GL_FRAGMENT_SHADER);
Shader shaders_1[2] = { vertex, frag_1 };
Shader shaders_2[2] = { vertex, frag_2 };
ShaderProgram shader_programme_1 = ShaderProgram(shaders_1, VERT_FRAG);
ShaderProgram shader_programme_2 = ShaderProgram(shaders_2, VERT_FRAG);
while (!glfwWindowShouldClose(window)) {
updateFpsCounter(window);
// wipe the drawing surface clear
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glViewport(0, 0, g_gl_width, g_gl_height);
glClearColor(0.1f, 0.1f, 0.1f, 0.0f);
glUseProgram(shader_programme_1.get_program());
glBindVertexArray(vao_1);
// draw points 0-5 from the currently bound VAO with current in-use shader
glDrawArrays(GL_TRIANGLES, 0, 6);
glUseProgram(shader_programme_2.get_program());
glBindVertexArray(vao_2);
// draw points 0-5 from the currently bound VAO with current in-use shader
glDrawArrays(GL_TRIANGLES, 0, 3);
// update other events like input handling
glfwPollEvents();
// put the stuff we've been drawing onto the display
glfwSwapBuffers(window);
if (GLFW_PRESS == glfwGetKey(window, GLFW_KEY_ESCAPE))
{
glfwSetWindowShouldClose(window, 1);
}
}
//close gl context and other glfw resources
glfwTerminate();
return 0;
}
int main(int argc, char *argv[])
{
SDL_Init(SDL_INIT_VIDEO);
displayWindow = SDL_CreateWindow("My Game", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 640, 360, SDL_WINDOW_OPENGL);
SDL_GLContext context = SDL_GL_CreateContext(displayWindow);
SDL_GL_MakeCurrent(displayWindow, context);
#ifdef _WINDOWS
glewInit();
#endif
///setup
//ShaderProgram program = ShaderProgram(RESOURCE_FOLDER"vertex.glsl", RESOURCE_FOLDER"fragment.glsl");
ShaderProgram program = ShaderProgram(RESOURCE_FOLDER"vertex_textured.glsl", RESOURCE_FOLDER"fragment_textured.glsl");
Matrix projectionMatrix;
Matrix modelMatrix;
Matrix viewMatrix;
projectionMatrix.setOrthoProjection(-3.55, 3.55, -2.0, 2.0, -1.0, 1.0);
GLuint Charmander = LoadTexture("Charmander.png");
GLuint Bulbasaur = LoadTexture("Bulbasaur.png");
GLuint Squirtle = LoadTexture("Squirtle.png");
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
float lastFrameTicks = 0.0f;
float angle = 0.0f;
SDL_Event event;
bool done = false;
while (!done) {
while (SDL_PollEvent(&event)) {
if (event.type == SDL_QUIT || event.type == SDL_WINDOWEVENT_CLOSE) {
done = true;
}
}
program.setModelMatrix(modelMatrix);
program.setProjectionMatrix(projectionMatrix);
program.setViewMatrix(viewMatrix);
glClearColor(0.8f, 0.8f, 0.8f, 1.0f);
glClear(GL_COLOR_BUFFER_BIT);
glUseProgram(program.programID);
float vertices[] = { -0.5f, -0.5f, 0.5f, 0.5f, -0.5f, 0.5f, 0.5f, 0.5f, -0.5f, -0.5f, 0.5f, -0.5f };
glVertexAttribPointer(program.positionAttribute, 2, GL_FLOAT, false, 0, vertices);
glEnableVertexAttribArray(program.positionAttribute);
float texCoords[] = { 0.0, 1.0f, 1.0f, 0.0f, 0.0f, 0.0f, 1.0, 0.0, 0.0, 1.0, 1.0, 1.0 };
glVertexAttribPointer(program.texCoordAttribute, 2, GL_FLOAT, false, 0, texCoords);
glEnableVertexAttribArray(program.texCoordAttribute);
glBindTexture(GL_TEXTURE_2D, Charmander);
glDrawArrays(GL_TRIANGLES, 0, 6);
glDisableVertexAttribArray(program.positionAttribute);
glDisableVertexAttribArray(program.texCoordAttribute);
float vertices2[] = { -1.5f, -0.5f, -0.5f, 0.5f, -1.5f, 0.5f, -0.5f, 0.5f, -1.5f, -0.5f, -0.5f, -0.5f };
glVertexAttribPointer(program.positionAttribute, 2, GL_FLOAT, false, 0, vertices2);
glEnableVertexAttribArray(program.positionAttribute);
float texCoords2[] = { 0.0, 1.0f, 1.0f, 0.0f, 0.0f, 0.0f, 1.0, 0.0, 0.0, 1.0, 1.0, 1.0 };
glVertexAttribPointer(program.texCoordAttribute, 2, GL_FLOAT, false, 0, texCoords2);
glEnableVertexAttribArray(program.texCoordAttribute);
glBindTexture(GL_TEXTURE_2D, Squirtle);
glDrawArrays(GL_TRIANGLES, 0, 6);
float vertices3[] = { 1.5f, -0.5f, 0.5f, 0.5f, 1.5f, 0.5f, 0.5f, 0.5f, 1.5f, -0.5f, 0.5f, -0.5f };
glVertexAttribPointer(program.positionAttribute, 2, GL_FLOAT, false, 0, vertices3);
glEnableVertexAttribArray(program.positionAttribute);
float texCoords3[] = { 0.0, 1.0f, 1.0f, 0.0f, 0.0f, 0.0f, 1.0, 0.0, 0.0, 1.0, 1.0, 1.0 };
glVertexAttribPointer(program.texCoordAttribute, 2, GL_FLOAT, false, 0, texCoords3);
glEnableVertexAttribArray(program.texCoordAttribute);
glBindTexture(GL_TEXTURE_2D, Bulbasaur);
glDrawArrays(GL_TRIANGLES, 0, 6);
float ticks = (float)SDL_GetTicks() / 1000.0f;
float elapsed = ticks - lastFrameTicks;
lastFrameTicks = ticks;
angle += elapsed;
glMatrixMode(Bulbasaur);
modelMatrix.identity();
modelMatrix.Rotate(angle);
SDL_GL_SwapWindow(displayWindow);
}
SDL_Quit();
return 0;
}
void Game::init() {
this->window.clearColor(glm::vec3(0.2f, 0.2f, 0.2f));
FragmentShader f("res/texture.frag");
VertexShader v("res/texture.vert");
FragmentShader ffrag("res/text.frag");
VertexShader fvert("res/text.vert");
this->p = ShaderProgram(f, v);
this->text = ShaderProgram(ffrag, fvert);
this->t = Texture("res/tile.png");
this->p["tex"] = this->t;
this->p["P"] = glm::ortho(0.0f, (float)this->window.width, (float)this->window.height, 0.0f, -0.1f, 100.0f);
this->p["V"] = glm::mat4(1.0f);
this->p["M"] = glm::scale(glm::translate(glm::mat4(1.0f), glm::vec3(this->window.width / 2 - (gridWidth * 25) / 2, this->window.height / 2 - (gridHeight * 25) / 2, 0.0f)), glm::vec3(25.0f, 25.0f, 0.0f));
this->font = Texture("res/font.png", GL_NEAREST);
this->text["tex"] = this->font;
this->text["P"] = glm::ortho(0.0f, (float)this->window.width, (float)this->window.height, 0.0f, -0.1f, 100.0f);
this->text["V"] = glm::mat4(1.0f);
this->text["M"] = glm::mat4(1.0f);
std::vector<glm::vec3> verts;
verts.push_back(glm::vec3(0.0f, 0.0f, 0.0f));
verts.push_back(glm::vec3(0.0f, 1.0f, 0.0f));
verts.push_back(glm::vec3(1.0f, 1.0f, 0.0f));
verts.push_back(glm::vec3(1.0f, 0.0f, 0.0f));
vertices = Buffer(verts);
vao.setAttrib(this->p, "vertexPosition", vertices, 3, GL_FLOAT, false);
std::vector<glm::vec2> temp_uvs;
temp_uvs.push_back(glm::vec2(0, 1));
temp_uvs.push_back(glm::vec2(0, 0));
temp_uvs.push_back(glm::vec2(1, 0));
temp_uvs.push_back(glm::vec2(1, 1));
uvs = Buffer(temp_uvs);
vao.setAttrib(this->p, "vertexUV", uvs, 2, GL_FLOAT, false);
std::vector<unsigned> indices;
indices.push_back(0);
indices.push_back(1);
indices.push_back(2);
indices.push_back(2);
indices.push_back(3);
indices.push_back(0);
inds = Buffer(indices, GL_ELEMENT_ARRAY_BUFFER, GL_STATIC_DRAW);
std::vector<glm::vec2> poss;
for(int y = 0; y < gridHeight; ++y)
for(int x = 0; x < gridWidth; ++x)
poss.push_back(glm::vec2((float)x, (float)y));
for(int y = 0; y < 4; ++y)
for(int x = 0; x < 4; ++x)
poss.push_back(glm::vec2(-6.0f + (float)x, (float)y));
for(int y = 0; y < 4; ++y)
for(int x = 0; x < 4; ++x)
poss.push_back(glm::vec2(gridWidth + 1 + (float)x, (float)y));
positions = Buffer(poss);
vao.setAttrib(this->p, "tilePosition", positions, 2, GL_FLOAT, false, 1);
this->vao.unbind();
newGame();
}
ShaderProgram GLContext::getShaderProgram() const {
return ShaderProgram(program);
}
int main() {
// Initialize GLFW
if (!glfwInit()) {
std::cerr << "Failed to initialize GLFW!" << std::endl;
return EXIT_FAILURE;
}
// Setup OpenGL context
glfwWindowHint(GLFW_SAMPLES, 4);
glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);
glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
// Try to create a window
auto window = glfwCreateWindow( SIZE, SIZE, "OpenGL", NULL, NULL);
if (window == NULL) {
std::cerr << "Failed to open GLFW window, your graphics card is probably only capable of OpenGL 2.1" << std::endl;
glfwTerminate();
return EXIT_FAILURE;
}
// Finalize window setup
glfwMakeContextCurrent(window);
// Initialize GLEW
glewExperimental = GL_TRUE;
glewInit();
if (!glewIsSupported("GL_VERSION_3_3")) {
std::cerr << "Failed to initialize GLEW with OpenGL 3.3!" << std::endl;
glfwTerminate();
return EXIT_FAILURE;
}
// Load shaders
auto program_id = ShaderProgram("gl_texture.vert", "gl_texture.frag");
glUseProgram(program_id);
InitializeGeometry(program_id);
// Create texture
GLuint texture_id;
glGenTextures(1, &texture_id);
glBindTexture(GL_TEXTURE_2D, texture_id);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
// Bind texture
auto texture_attrib = glGetUniformLocation(program_id, "Texture");
glUniform1i(texture_attrib, 0);
glActiveTexture(GL_TEXTURE0 + 0);
glBindTexture(GL_TEXTURE_2D, texture_id);
// Time counter
float time = 0;
// Main execution loop
while (!glfwWindowShouldClose(window)) {
// Update Framebuffer
UpdateFramebuffer(time++);
// Update texture data with framebuffer
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, SIZE, SIZE, 0, GL_RGB, GL_UNSIGNED_BYTE, framebuffer);
// Set gray background
glClearColor(.5f,.5f,.5f,0);
// Clear depth and color buffers
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
// Draw triangles using the program
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
// Display result
glfwSwapBuffers(window);
glfwPollEvents();
}
// Clean up
glfwTerminate();
return EXIT_SUCCESS;
}
ShaderProgram ShaderProgram::Current() {
GLint current_shader;
glGetIntegerv(GL_CURRENT_PROGRAM, ¤t_shader);
return ShaderProgram(current_shader);
}
int main(int argc, char *argv[])
{
SDL_Init(SDL_INIT_VIDEO);
displayWindow = SDL_CreateWindow("My Game", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 640, 360, SDL_WINDOW_OPENGL);
SDL_GLContext context = SDL_GL_CreateContext(displayWindow);
SDL_GL_MakeCurrent(displayWindow, context);
#ifdef _WINDOWS
glewInit();
#endif
glViewport(0, 0, 640, 360);
//For No Textures used
//ShaderProgram program = ShaderProgram("vertex.glsl", "fragment.glsl");
//For Textures used
ShaderProgram program = ShaderProgram("vertex_textured.glsl", "fragment_textured.glsl");
//Sets clear color of screen. (0.0f, 0.0f, 0.0f, 1.0f) is black
glClearColor(0.0f, 0.0f, 0.0f, 1.0f); //Black Color
Matrix projectionMatrix;
Matrix modelMatrix;
Matrix viewMatrix;
//HW2
Matrix modelMatrixleftpaddle;
Matrix modelMatrixrightpaddle;
Matrix modelMatrixBall;
Matrix modelMatrixBorder;
projectionMatrix.setOrthoProjection(-3.55f, 3.55f, -2.0f, 2.0f, -1.0f, 1.0f);
//Declare variables outisde of event loop
float lastFrameTicks = 0.0f;
float angle = 0.0f;
GLuint redTextureID = LoadTexture(RESOURCE_FOLDER"red.png");
GLuint blueTextureID = LoadTexture(RESOURCE_FOLDER"blue.png");
GLuint yellowTextureID = LoadTexture(RESOURCE_FOLDER"yellow.png");
GLuint purpleTextureID = LoadTexture(RESOURCE_FOLDER"purple.png");
GLuint greenTextureID = LoadTexture(RESOURCE_FOLDER"green.png");
GLuint orangeTextureID = LoadTexture(RESOURCE_FOLDER"orange.png");
//HW2
float paddleLength = 0.4f;
float paddleWidth = 0.1f;
float leftpaddleY = 0.0f;
float leftpaddleX = 0.0f;
float rightpaddleY = 0.0f;
float rightpaddlex = 0.0f;
float ballPosiX = 0.0f;
float ballPosiY = 0.0f;
float ballDirectX = 0.0f;
float ballDirectY = 0.0f;
float ballSpeed = 1.0f;
float ballSize = 0.1f;
SDL_Event event;
bool done = false;
while (!done) {
while (SDL_PollEvent(&event)) {
if (event.type == SDL_QUIT || event.type == SDL_WINDOWEVENT_CLOSE) {
done = true;
}
else if (event.type == SDL_KEYDOWN){
if (event.key.keysym.scancode == SDL_SCANCODE_SPACE) {
//make character jump
//character should be affected by gravity
}
}
else if (event.type == SDL_MOUSEMOTION){
//event.motion.x is our new x
//float unitX = (((float)event.motion.x / 640.0f) * 3.554f) - 1.777f;
//event.motion.y is our new y
//float unitY = (((float)(360-event.motion.y) / 360.0f) * 2.0f) - 1.0f;
}
else if (event.type == SDL_MOUSEBUTTONDOWN){
//event.button.x = click x position
//event.button.y = click y position
//event.button.button is the mouse button clicked (1,2,3,etc.)
}
}
const Uint8 *keys = SDL_GetKeyboardState(NULL); //returns an array of keyboard keys, 1 if key is pressed
//entities[0].acceleration_x = 0.0f //sets player motion to 0 on x axis
//Polling Input
if (keys[SDL_SCANCODE_LEFT]) {
//MOVE CHARACTER LEFT/ROTATE LEFT
}
else if (keys[SDL_SCANCODE_RIGHT]) {
//MOVE CHARACTER RIGHT/ROTATE RIGHT
}
else if (keys[SDL_SCANCODE_UP]){
//MOVE CHARACTER UP
}
else if (keys[SDL_SCANCODE_DOWN]){
//MOVE CHARACTER DOWN
}
float ticks = (float)SDL_GetTicks() / 1000.0f;
float elapsed = ticks - lastFrameTicks;
lastFrameTicks = ticks;
program.setModelMatrix(modelMatrix);
program.setProjectionMatrix(projectionMatrix);
program.setViewMatrix(viewMatrix);
glClear(GL_COLOR_BUFFER_BIT);
glUseProgram(program.programID);
//HW2 Pong
//Left Paddle
program.setModelMatrix(modelMatrixleftpaddle);
if (keys[SDL_SCANCODE_W] && leftpaddleY < 0.8f) { leftpaddleY += elapsed; } // Up
else if (keys[SDL_SCANCODE_S] && leftpaddleY > -0.8f){ leftpaddleY -= elapsed; } // Down
float leftvertices[] = {
-paddleWidth / 2, -paddleLength / 2,
-paddleWidth / 2, paddleLength / 2,
paddleWidth / 2, paddleLength / 2,
-paddleWidth / 2, -paddleLength / 2,
paddleWidth / 2, -paddleLength / 2,
paddleWidth / 2, paddleLength / 2
};
glVertexAttribPointer(program.positionAttribute, 2, GL_FLOAT, false, 0, leftvertices);
glEnableVertexAttribArray(program.positionAttribute);
modelMatrixleftpaddle.identity();
modelMatrixleftpaddle.Translate(-1.652f, leftpaddleY, 0.0f);
glDrawArrays(GL_TRIANGLES, 0, 6);
glDisableVertexAttribArray(program.positionAttribute);
//Right Paddle
program.setModelMatrix(modelMatrixrightpaddle);
if (keys[SDL_SCANCODE_UP] && rightpaddleY < 0.8f) { rightpaddleY += elapsed; } // Up
else if (keys[SDL_SCANCODE_DOWN] && rightpaddleY > -0.8f){ rightpaddleY -= elapsed; } // Down
float rightvertices[] = {
-paddleWidth / 2, -paddleLength / 2,
-paddleWidth / 2, paddleLength / 2,
paddleWidth / 2, paddleLength / 2,
-paddleWidth / 2, -paddleLength / 2,
paddleWidth / 2, -paddleLength / 2,
paddleWidth / 2, paddleLength / 2
};
glVertexAttribPointer(program.positionAttribute, 2, GL_FLOAT, false, 0, rightvertices);
glEnableVertexAttribArray(program.positionAttribute);
modelMatrixrightpaddle.identity();
modelMatrixrightpaddle.Translate(1.652f, rightpaddleY, 0.0f);
glDrawArrays(GL_TRIANGLES, 0, 6);
glDisableVertexAttribArray(program.positionAttribute);
//Ball
program.setModelMatrix(modelMatrixBall);
if (keys[SDL_SCANCODE_SPACE] && ballDirectX == 0 && ballDirectY == 0)
{
ballDirectX = ballStart();
ballDirectY = ballStart();
}
ballPosiX += elapsed * ballSpeed * ballDirectX;
ballPosiY += elapsed * ballSpeed * ballDirectY;
if (ballPosiY <= -0.975f) { ballDirectY = 1.0f; } // Ball impacting bottom
else if (ballPosiY >= 0.975f) { ballDirectY = -1.0f; } // Ball impacting top
// Ball impacting left paddle
if (-1.652f + paddleWidth / 2 >= ballPosiX - ballSize / 2 &&
leftpaddleY - paddleLength / 2 <= ballPosiY - ballSize / 2 &&
leftpaddleY + paddleLength / 2 >= ballPosiY + ballSize / 2) {
ballDirectX = 1.0f;
}
// Ball impact right paddle
if (1.652f - paddleWidth / 2 <= ballPosiX + ballSize / 2 &&
rightpaddleY - paddleLength / 2 <= ballPosiY - ballSize / 2 &&
rightpaddleY + paddleLength / 2 >= ballPosiY + ballSize / 2) {
ballDirectX = -1.0f;
}
// Ball impacting goal
if (ballPosiX >= 1.752f || ballPosiX <= -1.752) {
ballPosiX = 0.0f; ballPosiY = 0.0f; ballDirectX = 0.0f; ballDirectY = 0.0f;
leftpaddleY = 0.0f; rightpaddleY = 0.0f; //Resets the paddles
}
float ballvertices[] = { -ballSize / 2, -ballSize / 2, ballSize / 2, ballSize / 2, -ballSize / 2, ballSize / 2,
-ballSize / 2, -ballSize / 2, ballSize / 2, -ballSize / 2, ballSize / 2, ballSize / 2 };
glVertexAttribPointer(program.positionAttribute, 2, GL_FLOAT, false, 0, ballvertices);
glEnableVertexAttribArray(program.positionAttribute);
modelMatrixBall.identity();
modelMatrixBall.Translate(ballPosiX, ballPosiY, 0.0f);
glDrawArrays(GL_TRIANGLES, 0, 6);
glDisableVertexAttribArray(program.positionAttribute);
//Border?
program.setModelMatrix(modelMatrixBorder);
float bottomvertices[] = {
1.77f, -1.0f, //top right
-1.77f, -1.0f, //top left
-1.77f, -1.0f, //bottom left
1.77f, -1.0f }; //bottom right
glVertexAttribPointer(program.positionAttribute, 2, GL_FLOAT, false, 0, bottomvertices);
glEnableVertexAttribArray(program.positionAttribute);
float bottomtexcoords[] = { 1.5f, 1.5f, -1.5f, 1.5f, -1.5f, -1.5f, 1.5f, -1.5f };
glVertexAttribPointer(program.texCoordAttribute, 2, GL_FLOAT, false, 0, bottomtexcoords);
glEnableVertexAttribArray(program.texCoordAttribute);
glBindTexture(GL_TEXTURE_2D, blueTextureID);
glDrawArrays(GL_QUADS, 0, 4);
glDisableVertexAttribArray(program.positionAttribute);
glDisableVertexAttribArray(program.texCoordAttribute);
//HW1 Textures
/*
//Blue Box
modelMatrix.identity();
program.setModelMatrix(modelMatrix);
float iconvertices2[] = {
3.56f, 2.0f, //top right
-3.56f, 2.0f, //top left
-3.56f, -2.0f, //bottom left
3.56f, -2.0f }; //bottom right
glVertexAttribPointer(program.positionAttribute, 2, GL_FLOAT, false, 0, iconvertices2);
glEnableVertexAttribArray(program.positionAttribute);
float iconTexCoords2[] = { 1.5f, 1.5f, -1.5f, 1.5f, -1.5f, -1.5f, 1.5f, -1.5f };
glVertexAttribPointer(program.texCoordAttribute, 2, GL_FLOAT, false, 0, iconTexCoords2);
glEnableVertexAttribArray(program.texCoordAttribute);
glBindTexture(GL_TEXTURE_2D, blueTextureID);
glDrawArrays(GL_QUADS, 0, 4);
glDisableVertexAttribArray(program.positionAttribute);
glDisableVertexAttribArray(program.texCoordAttribute);
//yellow Box
modelMatrix.identity();
modelMatrix.Rotate(-ticks * ticks);
program.setModelMatrix(modelMatrix);
float iconvertices1[] = {
0.0f, 0.0f, //top right
-1.0f, 0.0f, //top left
-1.0f, -1.0f, //bottom left
0.0f, -1.0f }; //bottom right
glVertexAttribPointer(program.positionAttribute, 2, GL_FLOAT, false, 0, iconvertices1);
glEnableVertexAttribArray(program.positionAttribute);
float iconTexCoords1[] = { 1.5f, 1.5f, -1.5f, 1.5f, -1.5f, -1.5f, 1.5f, -1.5f };
glVertexAttribPointer(program.texCoordAttribute, 2, GL_FLOAT, false, 0, iconTexCoords1);
glEnableVertexAttribArray(program.texCoordAttribute);
glBindTexture(GL_TEXTURE_2D, yellowTextureID);
glDrawArrays(GL_QUADS, 0, 4);
glDisableVertexAttribArray(program.positionAttribute);
glDisableVertexAttribArray(program.texCoordAttribute);
//Red Box
modelMatrix.identity();
modelMatrix.Rotate(ticks);
program.setModelMatrix(modelMatrix);
float iconvertices3[] = {
0.5f, 0.5f, //top right
-0.5f, 0.5f, //top left
-0.5f, -0.5f, //bottom left
0.5f, -0.5f }; //bottom right
glVertexAttribPointer(program.positionAttribute, 2, GL_FLOAT, false, 0, iconvertices3);
glEnableVertexAttribArray(program.positionAttribute);
float iconTexCoords3[] = { 1.5f, 1.5f, -1.5f, 1.5f, -1.5f, -1.5f, 1.5f, -1.5f};
glVertexAttribPointer(program.texCoordAttribute, 2, GL_FLOAT, false, 0, iconTexCoords3);
glEnableVertexAttribArray(program.texCoordAttribute);
glBindTexture(GL_TEXTURE_2D, redTextureID);
glDrawArrays(GL_QUADS, 0, 4);
glDisableVertexAttribArray(program.positionAttribute);
glDisableVertexAttribArray(program.texCoordAttribute);
*/
//HW1 No Textures
/* //HW1 no textures
modelMatrix.identity();
modelMatrix.Rotate(ticks);
program.setModelMatrix(modelMatrix);
//Triangle Declaration
float vertices[] = {
-0.5f, -0.5f, //Bottom Left
0.5f, -0.5f, // bottom right
0.5f, 0.5f, //Top right
-0.5f, 0.5f //top left
};
glVertexAttribPointer(program.positionAttribute, 2, GL_FLOAT, false, 0, vertices);
glEnableVertexAttribArray(program.positionAttribute);
//Triangle Drawing
glDrawArrays(GL_QUADS, 0, 4);
glDisableVertexAttribArray(program.positionAttribute);
modelMatrix.identity();
modelMatrix.Rotate(-ticks);
program.setModelMatrix(modelMatrix);
//Triangle Declaration
float vertices2[] = {
-0.5f, -0.5f, //Bottom Left
-1.5f, -1.5f, // bottom right
-1.5f, 0.5f, //Top right
-0.5f, 0.5f //top left
};
glVertexAttribPointer(program.positionAttribute, 2, GL_FLOAT, false, 0, vertices2);
glEnableVertexAttribArray(program.positionAttribute);
//Triangle Drawing
glDrawArrays(GL_QUADS, 0, 4);
glDisableVertexAttribArray(program.positionAttribute);
modelMatrix.identity();
modelMatrix.Rotate((ticks * ticks));
program.setModelMatrix(modelMatrix);
//Triangle Declaration
float vertices3[] = {
0.5f, 0.0f, //Bottom Left
1.5f, 0.0f, // bottom right
1.5f, 1.5f, //Top right
1.0f, 1.5f //top left
};
glVertexAttribPointer(program.positionAttribute, 2, GL_FLOAT, false, 0, vertices3);
glEnableVertexAttribArray(program.positionAttribute);
//Triangle Drawing
glDrawArrays(GL_QUADS, 0, 4);
glDisableVertexAttribArray(program.positionAttribute);
*/
SDL_GL_SwapWindow(displayWindow);
}
SDL_Quit();
return 0;
}
void VisibilityExtractionDemo::init()
{
window = generateWindow();
// load a file
std::vector<std::string> paths;
//paths.push_back("/home/nlichtenberg/1crn.pdb");
paths.push_back("/home/nlichtenberg/1vis.pdb");
//paths.push_back("/home/nlichtenberg/Develop/Mol_Sandbox/resources/TrajectoryFiles/1aon.pdb");
MdTrajWrapper mdwrap;
std::auto_ptr<Protein> prot = mdwrap.load(paths);
impSph = new ImpostorSpheres(!useAtomicCounters, false);
impSph->setProteinData(prot.get());
impSph->init();
num_balls = impSph->num_balls;
if(perspectiveProj)
projection = perspective(45.0f, getRatio(window), 0.1f, 100.0f);
else
projection = ortho(-30.0f, 30.0f, -30.0f, 30.0f, 0.0f, 100.0f);
if (useAtomicCounters)
{
spRenderImpostor = ShaderProgram("/VisibleAtomsDetection/Impostor/impostorSpheres_InstancedUA.vert",
"/VisibleAtomsDetection/Detection/solidColorInstanceCount.frag");
spRenderDiscs = ShaderProgram("/VisibleAtomsDetection//Impostor/impostorSpheres_InstancedUA.vert",
"/VisibleAtomsDetection//Impostor/impostorSpheres_discardFragments_Instanced.frag");
if(perspectiveProj)
spRenderBalls = ShaderProgram("/VisibleAtomsDetection/Base/modelViewProjectionInstancedUA.vert",
"/VisibleAtomsDetection/Impostor/Impostor3DSphere.frag");
else
spRenderBalls = ShaderProgram("/VisibleAtomsDetection/Base/modelViewProjectionInstancedUA.vert",
"/VisibleAtomsDetection/Impostor/Impostor3DSphere_Ortho.frag");
}
else
{
spRenderImpostor = ShaderProgram("/VisibleAtomsDetection/Impostor/impostorSpheres_Instanced.vert",
"/VisibleAtomsDetection/Detection/solidColorInstanceCount.frag");
spRenderDiscs = ShaderProgram("/VisibleAtomsDetection/Impostor/impostorSpheres_Instanced.vert",
"/VisibleAtomsDetection/Impostor/impostorSpheres_discardFragments_Instanced.frag");
spRenderBalls = ShaderProgram("/VisibleAtomsDetection/Impostor/impostorSpheres_Instanced.vert",
"/VisibleAtomsDetection/Impostor/Impostor3DSphere.frag");
}
/// Renderpass to render impostors/fake geometry
renderBalls = new RenderPass(
impSph,
&spRenderBalls,
getWidth(window),
getHeight(window));
renderBalls->update("projection", projection);
// define projection matrix for other shader programs
renderBalls->setShaderProgram(&spRenderDiscs);
renderBalls->update("projection", projection);
renderBalls->setShaderProgram(&spRenderImpostor);
renderBalls->update("projection", projection);
/// Renderpass to detect the visible instances
collectSurfaceIDs = new RenderPass(
new Quad(),
new ShaderProgram("/VisibleAtomsDetection/Base/fullscreen.vert",
"/VisibleAtomsDetection/Detection/DetectVisibleInstanceIDs.frag"),
getWidth(window),
getHeight(window));
// prepare 1D buffer for entries
tex_collectedIDsBuffer = new Texture(GL_R8UI, GL_RED_INTEGER, GL_UNSIGNED_INT);
tex_collectedIDsBuffer->genUimageBuffer(num_balls);
collectSurfaceIDs->texture("collectedIDsBuffer", tex_collectedIDsBuffer);
collectSurfaceIDs->texture("tex", renderBalls->get("InstanceID"));
/// renderpass to display result frame
result = new RenderPass(
new Quad(),
new ShaderProgram("/VisibleAtomsDetection/Base/fullscreen.vert",
"/VisibleAtomsDetection/Detection/toneMapperLinearInstanceCount.frag"));
result->texture("tex", renderBalls->get("fragColor"));
/// compute shader to process a list of visible IDs (with the actual instanceID of the first general draw)
computeSortedIDs = new ComputeProgram(new ShaderProgram("/VisibleAtomsDetection/Detection/CreateVisibleIDList.comp"));
// 1D buffer for visible IDs
tex_sortedVisibleIDsBuffer = new Texture(GL_R32UI, GL_RED_INTEGER, GL_UNSIGNED_INT);
tex_sortedVisibleIDsBuffer->genUimageBuffer(num_balls);
computeSortedIDs->texture("collectedIDsBuffer", tex_collectedIDsBuffer);
computeSortedIDs->texture("sortedVisibleIDsBuffer", tex_sortedVisibleIDsBuffer);
// atomic counter buffer for consecutive index access in compute shader
glGenBuffers(1, &atomBuff);
glBindBuffer(GL_ATOMIC_COUNTER_BUFFER, atomBuff);
glBindBufferBase(GL_ATOMIC_COUNTER_BUFFER, 3, atomBuff);
glBufferData(GL_ATOMIC_COUNTER_BUFFER, sizeof(GLuint), NULL, GL_DYNAMIC_DRAW);
glBindBuffer(GL_ATOMIC_COUNTER_BUFFER, 0);
positions_size = sizeof(glm::vec4) * impSph->instance_positions_s.instance_positions.size();
colors_size = sizeof(glm::vec4) * impSph->instance_colors_s.instance_colors.size();
// SSBO setup
glGenBuffers(2, SSBO);
glBindBuffer(GL_SHADER_STORAGE_BUFFER, SSBO[0]);
glBufferData(GL_SHADER_STORAGE_BUFFER, positions_size, &impSph->instance_positions_s.instance_positions[0], GL_DYNAMIC_COPY);
glBindBufferRange(GL_SHADER_STORAGE_BUFFER, 0, SSBO[0], 0, positions_size);
glBindBuffer(GL_SHADER_STORAGE_BUFFER, SSBO[1]);
glBufferData(GL_SHADER_STORAGE_BUFFER, colors_size, &impSph->instance_colors_s.instance_colors[0], GL_DYNAMIC_COPY);
glBindBufferRange(GL_SHADER_STORAGE_BUFFER, 1, SSBO[1], 0, colors_size);
glBindBuffer(GL_SHADER_STORAGE_BUFFER, 0);
// SSBO copy data
glBindBuffer(GL_SHADER_STORAGE_BUFFER, SSBO[0]);
GLvoid* p_ = glMapBuffer(GL_SHADER_STORAGE_BUFFER, GL_WRITE_ONLY);
memcpy(p_, &impSph->instance_positions_s.instance_positions[0], positions_size);
glUnmapBuffer(GL_SHADER_STORAGE_BUFFER);
glBindBuffer(GL_SHADER_STORAGE_BUFFER, SSBO[1]);
p_ = glMapBuffer(GL_SHADER_STORAGE_BUFFER, GL_WRITE_ONLY);
memcpy(p_, &impSph->instance_colors_s.instance_colors[0], colors_size);
glUnmapBuffer(GL_SHADER_STORAGE_BUFFER);
// SSBO bind to shaders
glBindBuffer(GL_SHADER_STORAGE_BUFFER, SSBO[0]);
GLuint block_index = 0;
block_index = glGetProgramResourceIndex(spRenderBalls.getProgramHandle(), GL_SHADER_STORAGE_BLOCK, "instance_positions_t");
glShaderStorageBlockBinding(spRenderBalls.getProgramHandle(), block_index, 0);
glBindBuffer(GL_SHADER_STORAGE_BUFFER, SSBO[1]);
block_index = glGetProgramResourceIndex(spRenderBalls.getProgramHandle(), GL_SHADER_STORAGE_BLOCK, "instance_colors_t");
glShaderStorageBlockBinding(spRenderBalls.getProgramHandle(), block_index, 1);
glBindBuffer(GL_SHADER_STORAGE_BUFFER, SSBO[0]);
block_index = glGetProgramResourceIndex(spRenderDiscs.getProgramHandle(), GL_SHADER_STORAGE_BLOCK, "instance_positions_t");
glShaderStorageBlockBinding(spRenderBalls.getProgramHandle(), block_index, 0);
glBindBuffer(GL_SHADER_STORAGE_BUFFER, SSBO[1]);
block_index = glGetProgramResourceIndex(spRenderDiscs.getProgramHandle(), GL_SHADER_STORAGE_BLOCK, "instance_colors_t");
glShaderStorageBlockBinding(spRenderBalls.getProgramHandle(), block_index, 1);
glBindBuffer(GL_SHADER_STORAGE_BUFFER, SSBO[0]);
block_index = glGetProgramResourceIndex(spRenderImpostor.getProgramHandle(), GL_SHADER_STORAGE_BLOCK, "instance_positions_t");
glShaderStorageBlockBinding(spRenderBalls.getProgramHandle(), block_index, 0);
glBindBuffer(GL_SHADER_STORAGE_BUFFER, SSBO[1]);
block_index = glGetProgramResourceIndex(spRenderImpostor.getProgramHandle(), GL_SHADER_STORAGE_BLOCK, "instance_colors_t");
glShaderStorageBlockBinding(spRenderBalls.getProgramHandle(), block_index, 1);
// prepare data to reset the buffer that holds the visible instance IDs
int byteCount = sizeof(unsigned int)* num_balls;
zeros = new unsigned char[byteCount];
unsigned int f = 0;
unsigned char const * p = reinterpret_cast<unsigned char const *>(&f);
for (int i = 0; i < byteCount; i+=4)
{
zeros[i] = p[0];
zeros[i+1] = p[1];
zeros[i+2] = p[2];
zeros[i+3] = p[3];
}
// prepare buffer with index = value
// used to draw all istances
identityInstancesMap.clear();
for (GLuint i = 0; i < num_balls; i++)
identityInstancesMap.push_back(i);
glBindTexture(GL_TEXTURE_1D, tex_sortedVisibleIDsBuffer->getHandle());
glTexImage1D(GL_TEXTURE_1D, 0, GL_R32UI, num_balls, 0, GL_RED_INTEGER, GL_UNSIGNED_INT, &identityInstancesMap[0]);
// map to set all instances visible
mapAllVisible.resize(num_balls);
std::fill(mapAllVisible.begin(), mapAllVisible.end(), 1);
// time query
GLuint timeQuery;
glGenQueries(1, &timeQuery);
glEnable(GL_DEPTH_TEST);
}