void VertexBuffer::DrawArraysInstanced(GLenum mode, GLint first, GLsizei count, GLsizei instanceCount)
{
ProgramObject *p = rc->GetCurProgram();
if (p) p->updateMatrices();
Bind();
glDrawArraysInstanced(mode, first, count, instanceCount);
}
bool csShaderGLCGCommon::WriteToCache (iHierarchicalCache* cache,
const ProfileLimits& limits,
const ProfileLimitsPair& limitsPair,
const char* tag)
{
csString objectCode;
if (program != 0)
objectCode = cgGetProgramString (program, CG_COMPILED_PROGRAM);
ProgramObject programObj (objectCode,
programPositionInvariant ? ProgramObject::flagPositionInvariant : 0,
unusedParams);
const char* preprocSource (cgGetProgramString (program, CG_PROGRAM_SOURCE));
csString failReason;
ProgramObjectID progId;
if (!shaderPlug->progCache.WriteObject (preprocSource, limits, programObj,
progId, failReason))
{
if (shaderPlug->doVerbose)
{
csReport (objectReg, CS_REPORTER_SEVERITY_WARNING,
"crystalspace.graphics3d.shader.glcg",
"Error writing %s program for %s to compile cache: %s",
GetProgramType(), tag,
failReason.GetData());
}
return false;
}
programObj.SetID (progId);
return WriteToCache (cache, limits, limitsPair, tag, programObj);
}
void VertexBuffer::DrawElementsInstanced(GLenum mode, GLsizei count,
GLenum type, GLsizei instanceCount, int offset)
{
ProgramObject *p = rc->GetCurProgram();
if (p) p->updateMatrices();
Bind();
glDrawElementsInstanced(mode, count, type, (void *)offset, instanceCount);
}
int main(int /*argc*/, char ** /*argv*/) {
BaseApp app;
ProgramObject program;
auto mainWindow = app.getMainWindow();
std::string prefix = app.getResourceDir() + "Shaders/Examples/e06_ModelLoader/";
PerspectiveCamera cam;
OrbitManipulator manipulator(&cam);
manipulator.setupCallbacks(app);
NodeShared root;
GLuint query[2];
app.addInitCallback([&]() {
auto vs = compileShader(GL_VERTEX_SHADER, Loader::text(prefix + "phong.vert"));
auto fs = compileShader(GL_FRAGMENT_SHADER, Loader::text(prefix + "phong.frag"));
program = createProgram(vs, fs);
root = Loader::scene(app.getResourceDir() + "Models/sponza/sponza.fbx");
glCreateQueries(GL_TIMESTAMP, 2, query);
SDL_GL_SetSwapInterval(0);
});
app.addResizeCallback([&](int w, int h) {
glViewport(0, 0, w, h);
cam.setAspect(float(w) / float(h));
});
app.addDrawCallback([&]() {
glQueryCounter(query[0], GL_TIMESTAMP);
glClearColor(0.2, 0.2, 0.2, 1);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glEnable(GL_DEPTH_TEST);
//bunny
program.use();
program.setMatrix4fv("p", value_ptr(cam.getProjection()));
program.setMatrix4fv("v", value_ptr(cam.getView()));
drawNode(program, root);
glQueryCounter(query[1], GL_TIMESTAMP);
GLuint64 time1, time2;
glGetQueryObjectui64v(query[0], GL_QUERY_RESULT, &time1);
glGetQueryObjectui64v(query[1], GL_QUERY_RESULT, &time2);
std::string s = "fps: " + std::to_string(1e9 / (time2 - time1)) + " (" + std::to_string(ImGui::GetIO().Framerate) + ")";
label(s, 0, 0, 300, 100);
});
return app.run();
}
void VertexBuffer::DrawElements(GLenum mode, GLsizei count, GLenum type, int offset)
{
ProgramObject *p = rc->GetCurProgram();
if (p) p->updateMatrices();
if (GLEW_ARB_vertex_buffer_object) {
Bind();
glDrawElements(mode, count, type, (void *)offset);
}
else {
glDrawElements(mode, count, type, ptr->data + offset);
}
}
void GL3GraphicContextProvider::set_program_object(const ProgramObject &program)
{
OpenGL::set_active(this);
if (glUseProgram == nullptr)
return;
if (program.is_null())
glUseProgram(0);
else
{
glUseProgram(program.get_handle());
}
}
ProgramObject HSV::create_shader_program(GraphicContext &gc)
{
ProgramObject program = ProgramObject::load(gc, "Resources/vertex.glsl", "Resources/fragment.glsl");
program.bind_attribute_location(0, "Position");
program.bind_attribute_location(1, "TexCoord0");
program.set_uniform_buffer_index("ProgramUniforms", 0);
if (!program.link())
throw Exception("Unable to link program");
return program;
}
void CubeBlock::DrawWhiteBorders(GLRenderingContext *rc, bool whiteBorders)
{
if (whiteBorders) {
borderAmbient = Color3f(0.8f);
borderDiffuse = Color3f(0.85f);
}
else {
borderAmbient = Color3f(0.0f);
borderDiffuse = Color3f(0.35f);
}
ProgramObject *p = rc->GetCurProgram();
p->Uniform("BorderMaterial.ambient", 1, borderAmbient.data);
p->Uniform("BorderMaterial.diffuse", 1, borderDiffuse.data);
}
void App::draw_image(GraphicContext &gc, Texture &image, float xpos, float ypos, ProgramObject &program_object, Vec4f &draw_color_offset)
{
program_object.set_uniform1i("SourceTexture", 0);
program_object.set_uniform4f("color_offset", draw_color_offset);
gc.set_texture(0, image);
gc.set_program_object(program_object, cl_program_matrix_modelview_projection);
draw_texture(gc, Rectf(xpos, ypos, Sizef(image.get_width(), image.get_height())), Colorf::white, Rectf(0.0f, 0.0f, 1.0f, 1.0f));
gc.reset_program_object();
gc.reset_texture(0);
}
void GLRC_Text2DModule::Initialize(GLRenderingContext *rc)
{
if (GLEW_ARB_shader_objects) {
prog = new ProgramObject(rc);
Shader vshader(GL_VERTEX_SHADER);
Shader fshader(GL_FRAGMENT_SHADER);
vshader.CompileSource(shaderSource[0]);
fshader.CompileSource(shaderSource[1]);
prog->AttachShader(vshader);
prog->AttachShader(fshader);
prog->Link();
prog->Uniform("ColorMap", 0);
}
else prog = NULL;
}
UniformBuffer::UniformBuffer(GraphicContext &gc, ProgramObject &program, const std::string &name, int num_blocks, BufferUsage usage)
: impl(std::make_shared<UniformBuffer_Impl>())
{
GraphicContextProvider *gc_provider = gc.get_provider();
impl->provider = gc_provider->alloc_uniform_buffer();
impl->provider->create(program.get_uniform_buffer_size(name) * num_blocks, usage);
}
void Model::initSkinProgram(ProgramObject& program, Model::SkinLocations& locations) {
program.bind();
locations.clusterMatrices = program.uniformLocation("clusterMatrices");
locations.clusterIndices = program.attributeLocation("clusterIndices");
locations.clusterWeights = program.attributeLocation("clusterWeights");
locations.tangent = program.attributeLocation("tangent");
program.setUniformValue("diffuseMap", 0);
program.setUniformValue("normalMap", 1);
program.release();
}
static ProgramObject* createProgram(const QString& name) {
ProgramObject* program = new ProgramObject();
program->addShaderFromSourceFile(QGLShader::Fragment, Application::resourcesPath() + "shaders/" + name + ".frag");
program->link();
program->bind();
program->setUniformValue("originalTexture", 0);
program->release();
return program;
}
void ShaderEffect_Impl::create_shaders(GraphicContext &gc, const ShaderEffectDescription_Impl *description)
{
std::string vertex_shader_code = add_defines(gc, description->vertex_shader_code, description);
std::string fragment_shader_code = add_defines(gc, description->fragment_shader_code, description);
std::string compute_shader_code = add_defines(gc, description->compute_shader_code, description);
if (!vertex_shader_code.empty())
{
ShaderObject vertex_shader(gc, shadertype_vertex, vertex_shader_code);
if(!vertex_shader.compile())
throw Exception(string_format("Unable to compile vertex shader: %1", vertex_shader.get_info_log()));
program.attach(vertex_shader);
}
if (!fragment_shader_code.empty())
{
ShaderObject fragment_shader(gc, shadertype_fragment, fragment_shader_code);
if(!fragment_shader.compile())
throw Exception(string_format("Unable to compile fragment shader: %1", fragment_shader.get_info_log()));
program.attach(fragment_shader);
}
if (!compute_shader_code.empty())
{
ShaderObject compute_shader(gc, shadertype_compute, compute_shader_code);
if(!compute_shader.compile())
throw Exception(string_format("Unable to compile compute shader: %1", compute_shader.get_info_log()));
program.attach(compute_shader);
}
int index = 0;
for(const auto & elem : description->attributes)
{
program.bind_attribute_location(index++, elem.first);
}
index = 0;
for(const auto & elem : description->frag_data)
{
program.bind_frag_data_location(index++, elem.first);
}
if (!program.link())
throw Exception(string_format("Link failed: %1", program.get_info_log()));
index = 0;
for(auto it = description->uniform_buffers.begin(); it != description->uniform_buffers.end(); ++it, index++)
{
program.set_uniform_buffer_index(it->first, index);
uniform_bindings[index] = it->second;
}
index = 0;
for(auto it = description->textures.begin(); it != description->textures.end(); ++it, index++)
{
program.set_uniform1i(it->first, index);
texture_bindings[index] = it->second;
}
index = 0;
for(auto it = description->images.begin(); it != description->images.end(); ++it, index++)
{
program.set_uniform1i(it->first, index);
image_bindings[index] = it->second;
}
index = 0;
for(auto it = description->storage_buffers.begin(); it != description->storage_buffers.end(); ++it, index++)
{
program.set_uniform1i(it->first, index);
storage_bindings[index] = it->second;
}
}
int App::start(const std::vector<std::string> &args)
{
OpenGLWindowDescription description;
description.set_title("UniformBlock Shader");
//description.set_version(3, 1, false);
description.set_size(Size(1024, 768), true);
DisplayWindow window(description);
InputDevice keyboard = window.get_ic().get_keyboard();
GraphicContext gc = window.get_gc();
Slot slot_input_up = (window.get_ic().get_keyboard()).sig_key_up().connect(this, &App::on_input_up);
Slot slot_window_close = window.sig_window_close().connect(this, &App::window_close);
// Load and link shaders
ProgramObject shader = ProgramObject::load(gc, "Resources/vertex_shader.glsl", "Resources/fragment_shader.glsl");
shader.bind_attribute_location(0, "Position");
if (!shader.link())
throw Exception("Unable to link shader program: Error:" + shader.get_info_log());
int block_size = shader.get_uniform_block_size("TestBlock");
const int num_blocks = 16;
ProgramUniformBlock block(gc, block_size * num_blocks);
std::vector<float> data_to_upload;
data_to_upload.resize((num_blocks * block_size) / sizeof(float) );
float test_colour = 1.0f;
for (int cnt=0; cnt<num_blocks; cnt++)
{
int offset = cnt * block_size / sizeof(float) ;
data_to_upload[offset + 0] = test_colour;
data_to_upload[offset + 1] = 0.5f;
data_to_upload[offset + 2] = 1.0f;
test_colour -= 0.05f;
}
block.upload_data(0, &data_to_upload[0], block_size * num_blocks);
quit = false;
Font font(gc, "tahoma", 32);
clan::ubyte64 startTime = System::get_time();
//// Test code
//GLuint uniform_index = -1;
//const char *names[] = {"src_color"};
//glGetUniformIndices(handle, 1, names, &uniform_index);
//if (uniform_index >=0)
//{
// GLint offset;
// GLint singleSize;
// GLint uniform_type;
// glGetActiveUniformsiv(handle, 1, &uniform_index, GL_UNIFORM_TYPE, &uniform_type);
// glGetActiveUniformsiv(handle, 1, &uniform_index, GL_UNIFORM_OFFSET, &offset);
// glGetActiveUniformsiv(handle, 1, &uniform_index, GL_UNIFORM_SIZE, &singleSize);
// if ((uniform_type != GL_FLOAT_VEC3) || (offset !=0) || (singleSize != 1))
// {
// throw Exception("well it seems it does not work");
// }
//}
while (!quit)
{
gc.clear(Colorf(0.1f, 0.1f, 0.2f));
OpenGL::check_error();
for (int test_run_y=0; test_run_y < 16; test_run_y++)
{
shader.set_uniform_block("TestBlock", block, test_run_y*block_size);
for (int test_run_x=0; test_run_x < 16; test_run_x++)
{
Vec2f positions[3];
float size = 32.0f;
positions[0].x = test_run_x * size;
positions[0].y = test_run_y * size + size;
positions[1].x = test_run_x * size + size;
positions[1].y = test_run_y * size + size;
positions[2].x = test_run_x * size + size;
positions[2].y = test_run_y * size;
PrimitivesArray prim_array(gc);
prim_array.set_attributes(0, positions);
gc.set_program_object(shader, cl_program_matrix_modelview_projection);
gc.draw_primitives(cl_triangles, 3, prim_array);
gc.reset_program_object();
}
}
font.draw_text(gc, 32, 200, "Hello World");
window.flip(1);
KeepAlive::process();
}
return 0;
}
void ChunkRenderer::renderChunkGlobally(const Chunk& chunk, const RenderData& data){
ProgramObject* programObject = getActivatedProgramWithTileData(
_globalRenderingShaderProvider.get(),
_globalProgramUniformHandler,
chunk);
if (programObject == nullptr) {
return;
}
const Ellipsoid& ellipsoid = chunk.owner()->ellipsoid();
bool performAnyBlending = false;
for (int i = 0; i < LayeredTextures::NUM_TEXTURE_CATEGORIES; ++i) {
LayeredTextures::TextureCategory category = (LayeredTextures::TextureCategory)i;
if(_tileProviderManager->getTileProviderGroup(i).levelBlendingEnabled && _tileProviderManager->getTileProviderGroup(category).getActiveTileProviders().size() > 0){
performAnyBlending = true;
break;
}
}
if (performAnyBlending) {
// Calculations are done in the reference frame of the globe. Hence, the camera
// position needs to be transformed with the inverse model matrix
glm::dmat4 inverseModelTransform = chunk.owner()->inverseModelTransform();
glm::dvec3 cameraPosition =
glm::dvec3(inverseModelTransform * glm::dvec4(data.camera.positionVec3(), 1));
float distanceScaleFactor = chunk.owner()->lodScaleFactor * ellipsoid.minimumRadius();
programObject->setUniform("cameraPosition", vec3(cameraPosition));
programObject->setUniform("distanceScaleFactor", distanceScaleFactor);
programObject->setUniform("chunkLevel", chunk.index().level);
}
// Calculate other uniform variables needed for rendering
Geodetic2 swCorner = chunk.surfacePatch().getCorner(Quad::SOUTH_WEST);
auto patchSize = chunk.surfacePatch().size();
dmat4 modelTransform = chunk.owner()->modelTransform();
dmat4 viewTransform = data.camera.combinedViewMatrix();
mat4 modelViewTransform = mat4(viewTransform * modelTransform);
mat4 modelViewProjectionTransform = data.camera.projectionMatrix() * modelViewTransform;
// Upload the uniform variables
programObject->setUniform("modelViewProjectionTransform", modelViewProjectionTransform);
programObject->setUniform("minLatLon", vec2(swCorner.toLonLatVec2()));
programObject->setUniform("lonLatScalingFactor", vec2(patchSize.toLonLatVec2()));
programObject->setUniform("radiiSquared", vec3(ellipsoid.radiiSquared()));
if (_tileProviderManager->getTileProviderGroup(
LayeredTextures::NightTextures).getActiveTileProviders().size() > 0 ||
_tileProviderManager->getTileProviderGroup(
LayeredTextures::WaterMasks).getActiveTileProviders().size() > 0) {
glm::vec3 directionToSunWorldSpace =
glm::normalize(-data.modelTransform.translation);
glm::vec3 directionToSunCameraSpace =
(viewTransform * glm::dvec4(directionToSunWorldSpace, 0));
data.modelTransform.translation;
programObject->setUniform("modelViewTransform", modelViewTransform);
programObject->setUniform("lightDirectionCameraSpace", -directionToSunCameraSpace);
}
// OpenGL rendering settings
glEnable(GL_DEPTH_TEST);
glEnable(GL_CULL_FACE);
glCullFace(GL_BACK);
// render
_grid->geometry().drawUsingActiveProgram();
// disable shader
programObject->deactivate();
}
void StandardPrograms::link(ProgramObject &program, const std::string &error_message)
{
if (!program.link())
throw Exception(string_format("%1: %2", error_message, program.get_info_log()));
}
void DeferredLightingEffect::render() {
// perform deferred lighting, rendering to free fbo
glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
glDisable(GL_BLEND);
glDisable(GL_LIGHTING);
glDisable(GL_DEPTH_TEST);
glDisable(GL_COLOR_MATERIAL);
glDepthMask(false);
QOpenGLFramebufferObject* primaryFBO = Application::getInstance()->getTextureCache()->getPrimaryFramebufferObject();
primaryFBO->release();
QOpenGLFramebufferObject* freeFBO = Application::getInstance()->getGlowEffect()->getFreeFramebufferObject();
freeFBO->bind();
glClear(GL_COLOR_BUFFER_BIT);
glBindTexture(GL_TEXTURE_2D, primaryFBO->texture());
glActiveTexture(GL_TEXTURE1);
glBindTexture(GL_TEXTURE_2D, Application::getInstance()->getTextureCache()->getPrimaryNormalTextureID());
glActiveTexture(GL_TEXTURE2);
glBindTexture(GL_TEXTURE_2D, Application::getInstance()->getTextureCache()->getPrimarySpecularTextureID());
glActiveTexture(GL_TEXTURE3);
glBindTexture(GL_TEXTURE_2D, Application::getInstance()->getTextureCache()->getPrimaryDepthTextureID());
// get the viewport side (left, right, both)
int viewport[4];
glGetIntegerv(GL_VIEWPORT, viewport);
const int VIEWPORT_X_INDEX = 0;
const int VIEWPORT_Y_INDEX = 1;
const int VIEWPORT_WIDTH_INDEX = 2;
const int VIEWPORT_HEIGHT_INDEX = 3;
float sMin = viewport[VIEWPORT_X_INDEX] / (float)primaryFBO->width();
float sWidth = viewport[VIEWPORT_WIDTH_INDEX] / (float)primaryFBO->width();
float tMin = viewport[VIEWPORT_Y_INDEX] / (float)primaryFBO->height();
float tHeight = viewport[VIEWPORT_HEIGHT_INDEX] / (float)primaryFBO->height();
ProgramObject* program = &_directionalLight;
const LightLocations* locations = &_directionalLightLocations;
bool shadowsEnabled = Menu::getInstance()->getShadowsEnabled();
if (shadowsEnabled) {
glActiveTexture(GL_TEXTURE4);
glBindTexture(GL_TEXTURE_2D, Application::getInstance()->getTextureCache()->getShadowDepthTextureID());
program = &_directionalLightShadowMap;
locations = &_directionalLightShadowMapLocations;
if (Menu::getInstance()->isOptionChecked(MenuOption::CascadedShadows)) {
program = &_directionalLightCascadedShadowMap;
locations = &_directionalLightCascadedShadowMapLocations;
_directionalLightCascadedShadowMap.bind();
_directionalLightCascadedShadowMap.setUniform(locations->shadowDistances,
Application::getInstance()->getShadowDistances());
} else {
program->bind();
}
program->setUniformValue(locations->shadowScale,
1.0f / Application::getInstance()->getTextureCache()->getShadowFramebufferObject()->width());
} else {
program->bind();
}
float left, right, bottom, top, nearVal, farVal;
glm::vec4 nearClipPlane, farClipPlane;
Application::getInstance()->computeOffAxisFrustum(
left, right, bottom, top, nearVal, farVal, nearClipPlane, farClipPlane);
program->setUniformValue(locations->nearLocation, nearVal);
float depthScale = (farVal - nearVal) / farVal;
program->setUniformValue(locations->depthScale, depthScale);
float nearScale = -1.0f / nearVal;
float depthTexCoordScaleS = (right - left) * nearScale / sWidth;
float depthTexCoordScaleT = (top - bottom) * nearScale / tHeight;
float depthTexCoordOffsetS = left * nearScale - sMin * depthTexCoordScaleS;
float depthTexCoordOffsetT = bottom * nearScale - tMin * depthTexCoordScaleT;
program->setUniformValue(locations->depthTexCoordOffset, depthTexCoordOffsetS, depthTexCoordOffsetT);
program->setUniformValue(locations->depthTexCoordScale, depthTexCoordScaleS, depthTexCoordScaleT);
renderFullscreenQuad(sMin, sMin + sWidth, tMin, tMin + tHeight);
program->release();
if (shadowsEnabled) {
glBindTexture(GL_TEXTURE_2D, 0);
glActiveTexture(GL_TEXTURE3);
}
// additive blending
glEnable(GL_BLEND);
glBlendFunc(GL_ONE, GL_ONE);
glEnable(GL_CULL_FACE);
glm::vec4 sCoefficients(sWidth / 2.0f, 0.0f, 0.0f, sMin + sWidth / 2.0f);
glm::vec4 tCoefficients(0.0f, tHeight / 2.0f, 0.0f, tMin + tHeight / 2.0f);
glTexGenfv(GL_S, GL_OBJECT_PLANE, (const GLfloat*)&sCoefficients);
glTexGenfv(GL_T, GL_OBJECT_PLANE, (const GLfloat*)&tCoefficients);
// enlarge the scales slightly to account for tesselation
const float SCALE_EXPANSION = 0.05f;
const glm::vec3& eyePoint = Application::getInstance()->getDisplayViewFrustum()->getPosition();
float nearRadius = glm::distance(eyePoint, Application::getInstance()->getDisplayViewFrustum()->getNearTopLeft());
if (!_pointLights.isEmpty()) {
_pointLight.bind();
_pointLight.setUniformValue(_pointLightLocations.nearLocation, nearVal);
_pointLight.setUniformValue(_pointLightLocations.depthScale, depthScale);
_pointLight.setUniformValue(_pointLightLocations.depthTexCoordOffset, depthTexCoordOffsetS, depthTexCoordOffsetT);
_pointLight.setUniformValue(_pointLightLocations.depthTexCoordScale, depthTexCoordScaleS, depthTexCoordScaleT);
foreach (const PointLight& light, _pointLights) {
_pointLight.setUniformValue(_pointLightLocations.radius, light.radius);
glLightfv(GL_LIGHT1, GL_AMBIENT, (const GLfloat*)&light.ambient);
glLightfv(GL_LIGHT1, GL_DIFFUSE, (const GLfloat*)&light.diffuse);
glLightfv(GL_LIGHT1, GL_SPECULAR, (const GLfloat*)&light.specular);
glLightfv(GL_LIGHT1, GL_POSITION, (const GLfloat*)&light.position);
glLightf(GL_LIGHT1, GL_CONSTANT_ATTENUATION, (light.constantAttenuation > 0.0f ? light.constantAttenuation : 0.0f));
glLightf(GL_LIGHT1, GL_LINEAR_ATTENUATION, (light.linearAttenuation > 0.0f ? light.linearAttenuation : 0.0f));
glLightf(GL_LIGHT1, GL_QUADRATIC_ATTENUATION, (light.quadraticAttenuation > 0.0f ? light.quadraticAttenuation : 0.0f));
glPushMatrix();
float expandedRadius = light.radius * (1.0f + SCALE_EXPANSION);
if (glm::distance(eyePoint, glm::vec3(light.position)) < expandedRadius + nearRadius) {
glLoadIdentity();
glTranslatef(0.0f, 0.0f, -1.0f);
glMatrixMode(GL_PROJECTION);
glPushMatrix();
glLoadIdentity();
renderFullscreenQuad();
glPopMatrix();
glMatrixMode(GL_MODELVIEW);
} else {
glTranslatef(light.position.x, light.position.y, light.position.z);
Application::getInstance()->getGeometryCache()->renderSphere(expandedRadius, 32, 32);
}
glPopMatrix();
}
bool csShaderGLCGCommon::WriteToCacheWorker (iHierarchicalCache* cache,
const ProfileLimits& limits, const ProfileLimitsPair& limitsPair,
const char* tag, const ProgramObject& program,
csString& failReason)
{
if (!cache) return false;
csMemFile cacheFile;
uint32 diskMagic = csLittleEndian::UInt32 (cacheFileMagic);
if (cacheFile.Write ((char*)&diskMagic, sizeof (diskMagic))
!= sizeof (diskMagic))
{
failReason = "write error (magic)";
return false;
}
csRef<iDataBuffer> programBuffer = GetProgramData();
CS::Utility::Checksum::MD5::Digest progHash = CS::Utility::Checksum::MD5::Encode (
programBuffer->GetData(), programBuffer->GetSize());
if (cacheFile.Write ((char*)&progHash, sizeof (progHash))
!= sizeof (progHash))
{
failReason = "write error (hash)";
return false;
}
if (!program.IsValid())
{
uint32 diskState = csLittleEndian::UInt32 (cpsInvalid);
if (cacheFile.Write ((char*)&diskState, sizeof (diskState))
!= sizeof (diskState))
{
failReason = "write error (state-invalid)";
return false;
}
}
else
{
{
uint32 diskState = csLittleEndian::UInt32 (cpsValid);
if (cacheFile.Write ((char*)&diskState, sizeof (diskState))
!= sizeof (diskState))
{
failReason = "write error (state-valid)";
return false;
}
}
CS::PluginCommon::ShaderCacheHelper::WriteString (&cacheFile, description);
CS_ASSERT(!program.GetID().archive.IsEmpty());
CS::PluginCommon::ShaderCacheHelper::WriteString (&cacheFile,
program.GetID().archive);
CS_ASSERT(!program.GetID().item.IsEmpty());
CS::PluginCommon::ShaderCacheHelper::WriteString (&cacheFile,
program.GetID().item);
}
csString cacheName ("/");
cacheName += tag;
if (!cache->CacheData (cacheFile.GetData(), cacheFile.GetSize(),
cacheName))
{
failReason = "failed writing to cache";
return false;
}
return true;
}
// The start of the Application
int App::start(const std::vector<std::string> &args)
{
try
{
DisplayWindowDescription win_desc;
win_desc.set_allow_resize(true);
win_desc.set_title("HDR Example");
win_desc.set_size(Size( 600, 630 ), false);
DisplayWindow window(win_desc);
Slot slot_quit = window.sig_window_close().connect(this, &App::on_window_close);
Slot slot_input_up = (window.get_ic().get_keyboard()).sig_key_up().connect(this, &App::on_input_up);
GraphicContext gc = window.get_gc();
// Load and link shaders
ProgramObject shader = ProgramObject::load(gc, "Resources/vertex_shader.glsl", "Resources/fragment_shader.glsl");
shader.bind_attribute_location(0, "Position");
shader.bind_attribute_location(2, "TexCoord0");
if (!shader.link())
throw Exception("Unable to link shader program: Error:" + shader.get_info_log());
const float dynamic_range_start = -1.5f;
const float dynamic_range_end = 1.5f;
const Size image_size(gc.get_width() - 64, 128);
Texture image_rgb32f = create_rgb32f(gc, image_size, dynamic_range_start, dynamic_range_end);
Font font(gc, "Tahoma", 20);
clan::ubyte64 time_last = System::get_time();
bool direction = false;
while (!quit)
{
clan::ubyte64 time_now = System::get_time();
time_delta = ((float) time_now - time_last) / 1000.0f;
time_last = time_now;
if (direction)
{
color_offset.r += time_delta * 1.0f;
if (color_offset.r > 2.0f)
{
color_offset.r = 2.0f;
direction = false;
}
}
else
{
color_offset.r -= time_delta * 1.0f;
if (color_offset.r < -2.0f)
{
color_offset.r = -2.0f;
direction = true;
}
}
color_offset.g = color_offset.r;
color_offset.b = color_offset.r;
gc.clear(Colorf(0.2f,0.2f,0.5f));
font.draw_text(gc, 32, 50, "Showing Texture RGB values from " + StringHelp::float_to_text(dynamic_range_start) + " to " + StringHelp::float_to_text(dynamic_range_end));
draw_image(gc, image_rgb32f, 32.0f, 100.0f, shader, Vec4f(0.0f, 0.0f, 0.0f, 0.0f));
font.draw_text(gc, 32, 350, "Showing Texture with an offset to the floating point color component");
draw_image(gc, image_rgb32f, 32.0f, 400.0f, shader, color_offset);
KeepAlive::process(0);
window.flip(1);
}
}
catch(Exception &exception)
{
// Create a console window for text-output if not available
ConsoleWindow console("Console", 80, 160);
Console::write_line("Exception caught: " + exception.get_message_and_stack_trace());
console.display_close_message();
return -1;
}
return 0;
}
ProgramObject LightsourceSimplePass::compile_and_link(GraphicContext &gc, const std::string &shader_path, const std::string &type)
{
ProgramObject program;
std::string vertex_filename = PathHelp::combine(shader_path, string_format("LightsourceSimple/vertex_%1.%2", type, gc.get_shader_language() == shader_glsl ? "glsl" : "hlsl"));
std::string fragment_filename = PathHelp::combine(shader_path, string_format("LightsourceSimple/fragment_light.%1", gc.get_shader_language() == shader_glsl ? "glsl" : "hlsl"));
program = ShaderSetup::compile(gc, "", vertex_filename, fragment_filename, type == "rect" ? "RECT_PASS" : "");
program.bind_frag_data_location(0, "FragColor");
if (!program.link())
throw Exception("Shader linking failed!");
program.bind_attribute_location(0, "AttrPositionInObject");
program.set_uniform_buffer_index("Uniforms", 0);
program.set_uniform1i("InstanceTexture", 0);
program.set_uniform1i("NormalZTexture", 1);
program.set_uniform1i("DiffuseColorTexture", 2);
program.set_uniform1i("SpecularColorTexture", 3);
program.set_uniform1i("SpecularLevelTexture", 4);
program.set_uniform1i("ShadowMapsTexture", 5);
program.set_uniform1i("ShadowMapsTextureSampler", 5);
program.set_uniform1i("SelfIlluminationTexture", 6);
return program;
}
void D3DGraphicContextProvider::set_program_object(const ProgramObject &program)
{
D3DProgramObjectProvider *new_program_provider = static_cast<D3DProgramObjectProvider *>(program.get_provider());
if (new_program_provider == current_program_provider)
return;
if (current_program_provider)
unit_map.unbind_program(this, current_program_provider);
current_program_provider = new_program_provider;
clear_input_layout();
for (int j = 0; j < shadertype_num_types; j++)
{
D3DShaderObjectProvider *shader_provider = current_program_provider->get_shader_provider((ShaderType)j);
if (shader_provider)
{
switch (j)
{
case shadertype_vertex: window->get_device_context()->VSSetShader(shader_provider->get_vertex(), 0, 0); break;
case shadertype_tess_control: window->get_device_context()->HSSetShader(shader_provider->get_hull(), 0, 0); break;
case shadertype_tess_evaluation: window->get_device_context()->DSSetShader(shader_provider->get_domain(), 0, 0); break;
case shadertype_geometry: window->get_device_context()->GSSetShader(shader_provider->get_geometry(), 0, 0); break;
case shadertype_fragment: window->get_device_context()->PSSetShader(shader_provider->get_pixel(), 0, 0); break;
case shadertype_compute: window->get_device_context()->CSSetShader(shader_provider->get_compute(), 0, 0); break;
}
shader_bound[j] = true;
}
else if (shader_bound[j])
{
switch (j)
{
case shadertype_vertex: window->get_device_context()->VSSetShader(0, 0, 0); break;
case shadertype_tess_control: window->get_device_context()->HSSetShader(0, 0, 0); break;
case shadertype_tess_evaluation: window->get_device_context()->DSSetShader(0, 0, 0); break;
case shadertype_geometry: window->get_device_context()->GSSetShader(0, 0, 0); break;
case shadertype_fragment: window->get_device_context()->PSSetShader(0, 0, 0); break;
case shadertype_compute: window->get_device_context()->CSSetShader(0, 0, 0); break;
}
shader_bound[j] = false;
}
}
unit_map.bind_program(this, current_program_provider);
}
int main(int /*argc*/, char ** /*argv*/) {
BaseApp app;
ProgramObject programPlanet;
ProgramObject programAtmosphere;
ProgramObject programStars;
auto mainWindow = app.getMainWindow();
PerspectiveCamera cam;
OrbitManipulator manipulator(&cam);
manipulator.setupCallbacks(app);
GLuint vao;
GLuint vbo;
bool wireframe = false;
int starCount = 20000;
int seed = 0;
app.addInitCallback([&]() {
string prefix = app.getResourceDir() + "shaders/Nei/n01_Planet/";
auto vert = compileShader(GL_VERTEX_SHADER, Loader::text(prefix + "empty.vert"));
auto tesc = compileShader(GL_TESS_CONTROL_SHADER, Loader::text(prefix + "planet.tesc"));
auto tese = compileShader(GL_TESS_EVALUATION_SHADER, Loader::text(prefix + "planet.tese"));
auto frag = compileShader(GL_FRAGMENT_SHADER, Loader::text(prefix + "planet.frag"));
programPlanet = createProgram(vert, tesc, tese, frag);
vert = compileShader(GL_VERTEX_SHADER, Loader::text(prefix + "empty.vert"));
tesc = compileShader(GL_TESS_CONTROL_SHADER, Loader::text(prefix + "atmosphere.tesc"));
tese = compileShader(GL_TESS_EVALUATION_SHADER, Loader::text(prefix + "atmosphere.tese"));
frag = compileShader(GL_FRAGMENT_SHADER, Loader::text(prefix + "atmosphere.frag"));
programAtmosphere = createProgram(vert, tesc, tese, frag);
vert = compileShader(GL_VERTEX_SHADER, Loader::text(prefix + "stars.vert"));
frag = compileShader(GL_FRAGMENT_SHADER, Loader::text(prefix + "stars.frag"));
programStars = createProgram(vert, frag);
glCreateVertexArrays(1, &vao);
float distance = 400;
vector<vec4> vec;
vec.reserve(starCount);
for (int i = 0; i<starCount; i++) {
float a = ((float)rand() / RAND_MAX - 0.5);
float b = ((float)rand() / RAND_MAX - 0.5);
float c = ((float)rand() / RAND_MAX - 0.5);
float d = (float)rand() / RAND_MAX * 5 + 1;
vec4 v(a, b, c, 0);
v = normalize(v);
v *= distance;
v.w = d;
vec.push_back(v);
}
glCreateBuffers(1, &vbo);
glNamedBufferData(vbo, sizeof(vec4)*vec.size(), vec.data(), GL_STATIC_DRAW);
glVertexArrayVertexBuffer(vao, 0, vbo, 0, sizeof(vec4));
glVertexArrayAttribFormat(vao, 0, 4, GL_FLOAT, 0, 0);
glEnableVertexArrayAttrib(vao, 0);
glBindVertexArray(vao);
});
app.addUpdateCallback([&](float dt) {
manipulator.update(dt);
});
app.addDrawCallback([&]() {
int w = mainWindow->getWidth();
int h = mainWindow->getHeight();
glViewport(0, 0, w, h);
glClearColor(0, 0, 0, 1);
glClear(GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT);
glEnable(GL_DEPTH_TEST);
glEnable(GL_CULL_FACE);
glPolygonMode(GL_FRONT_AND_BACK, wireframe ? GL_LINE : GL_FILL);
programStars.use();
programStars.setMatrix4fv("v", value_ptr(cam.getView()));
programStars.setMatrix4fv("p", value_ptr(cam.getProjection()));
glEnable(GL_PROGRAM_POINT_SIZE);
glDrawArrays(GL_POINTS, 0, starCount);
programPlanet.use();
programPlanet.setMatrix4fv("v", value_ptr(cam.getView()));
programPlanet.setMatrix4fv("p", value_ptr(cam.getProjection()));
programPlanet.set3fv("camPos", value_ptr(cam.getEye()));
programPlanet.set1i("seed", seed);
programPlanet.set1f("time", app.getTimeFromStart());
glPatchParameteri(GL_PATCH_VERTICES, 1);
glDrawArraysInstanced(GL_PATCHES, 0, 1, 16);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
programAtmosphere.use();
programAtmosphere.setMatrix4fv("v", value_ptr(cam.getView()));
programAtmosphere.setMatrix4fv("p", value_ptr(cam.getProjection()));
programAtmosphere.set3fv("camPos", value_ptr(cam.getEye()));
programAtmosphere.set1ui("seed", seed);
programAtmosphere.set1f("time", app.getTimeFromStart());
glPatchParameteri(GL_PATCH_VERTICES, 1);
glDrawArrays(GL_PATCHES, 0, 1);
});
return app.run();
}
ProgramObject* ChunkRenderer::getActivatedProgramWithTileData(
LayeredTextureShaderProvider* layeredTextureShaderProvider,
std::shared_ptr<LayeredTextureShaderUniformIdHandler> programUniformHandler,
const Chunk& chunk)
{
const ChunkIndex& chunkIndex = chunk.index();
std::array<std::vector<std::shared_ptr<TileProvider> >,
LayeredTextures::NUM_TEXTURE_CATEGORIES> tileProviders;
LayeredTexturePreprocessingData layeredTexturePreprocessingData;
for (size_t category = 0; category < LayeredTextures::NUM_TEXTURE_CATEGORIES; category++) {
tileProviders[category] = _tileProviderManager->getTileProviderGroup(category).getActiveTileProviders();
LayeredTextureInfo layeredTextureInfo;
layeredTextureInfo.lastLayerIdx = tileProviders[category].size() - 1;
layeredTextureInfo.layerBlendingEnabled = _tileProviderManager->getTileProviderGroup(category).levelBlendingEnabled;
layeredTexturePreprocessingData.layeredTextureInfo[category] = layeredTextureInfo;
}
layeredTexturePreprocessingData.keyValuePairs.push_back(
std::pair<std::string, std::string>(
"useAtmosphere",
std::to_string(chunk.owner()->atmosphereEnabled)));
layeredTexturePreprocessingData.keyValuePairs.push_back(
std::pair<std::string, std::string>(
"showChunkEdges",
std::to_string(chunk.owner()->debugOptions.showChunkEdges)));
layeredTexturePreprocessingData.keyValuePairs.push_back(
std::pair<std::string, std::string>(
"showHeightResolution",
std::to_string(chunk.owner()->debugOptions.showHeightResolution)));
layeredTexturePreprocessingData.keyValuePairs.push_back(
std::pair<std::string, std::string>(
"showHeightIntensities",
std::to_string(chunk.owner()->debugOptions.showHeightIntensities)));
layeredTexturePreprocessingData.keyValuePairs.push_back(
std::pair<std::string, std::string>(
"defaultHeight",
std::to_string(Chunk::DEFAULT_HEIGHT)));
// Now the shader program can be accessed
ProgramObject* programObject =
layeredTextureShaderProvider->getUpdatedShaderProgram(
layeredTexturePreprocessingData);
programUniformHandler->updateIdsIfNecessary(layeredTextureShaderProvider);
// Activate the shader program
programObject->activate();
// Initialize all texture units
struct BlendTexUnits {
ghoul::opengl::TextureUnit blendTexture0;
ghoul::opengl::TextureUnit blendTexture1;
ghoul::opengl::TextureUnit blendTexture2;
};
std::array<std::vector<BlendTexUnits>, LayeredTextures::NUM_TEXTURE_CATEGORIES> texUnits;
for (size_t category = 0; category < LayeredTextures::NUM_TEXTURE_CATEGORIES; category++) {
texUnits[category].resize(tileProviders[category].size());
}
// Go through all the categories
for (size_t category = 0; category < LayeredTextures::NUM_TEXTURE_CATEGORIES; category++) {
// Go through all the providers in this category
int i = 0;
for (auto it = tileProviders[category].begin(); it != tileProviders[category].end(); it++) {
auto tileProvider = it->get();
// Get the texture that should be used for rendering
TileAndTransform tileAndTransform = TileSelector::getHighestResolutionTile(tileProvider, chunkIndex);
if (tileAndTransform.tile.status == Tile::Status::Unavailable) {
tileAndTransform.tile = tileProvider->getDefaultTile();
tileAndTransform.uvTransform.uvOffset = { 0, 0 };
tileAndTransform.uvTransform.uvScale = { 1, 1 };
}
activateTileAndSetTileUniforms(
programUniformHandler,
LayeredTextures::TextureCategory(category),
LayeredTextureShaderUniformIdHandler::BlendLayerSuffixes::none,
i,
texUnits[category][i].blendTexture0,
tileAndTransform);
// If blending is enabled, two more textures are needed
if (layeredTexturePreprocessingData.layeredTextureInfo[category].layerBlendingEnabled) {
TileAndTransform tileAndTransformParent1 = TileSelector::getHighestResolutionTile(tileProvider, chunkIndex, 1);
if (tileAndTransformParent1.tile.status == Tile::Status::Unavailable) {
tileAndTransformParent1 = tileAndTransform;
}
activateTileAndSetTileUniforms(
programUniformHandler,
LayeredTextures::TextureCategory(category),
LayeredTextureShaderUniformIdHandler::BlendLayerSuffixes::Parent1,
i,
texUnits[category][i].blendTexture1,
tileAndTransformParent1);
TileAndTransform tileAndTransformParent2 = TileSelector::getHighestResolutionTile(tileProvider, chunkIndex, 2);
if (tileAndTransformParent2.tile.status == Tile::Status::Unavailable) {
tileAndTransformParent2 = tileAndTransformParent1;
}
activateTileAndSetTileUniforms(
programUniformHandler,
LayeredTextures::TextureCategory(category),
LayeredTextureShaderUniformIdHandler::BlendLayerSuffixes::Parent2,
i,
texUnits[category][i].blendTexture2,
tileAndTransformParent2);
}
/*
if (category == LayeredTextures::HeightMaps && tileAndTransform.tile.preprocessData) {
//auto preprocessingData = tileAndTransform.tile.preprocessData;
//float noDataValue = preprocessingData->noDataValues[0];
programObject->setUniform(
"minimumValidHeight[" + std::to_string(i) + "]",
-100000);
}
*/
i++;
}
}
// Go through all the height maps and set depth tranforms
int i = 0;
auto it = tileProviders[LayeredTextures::HeightMaps].begin();
auto end = tileProviders[LayeredTextures::HeightMaps].end();
for (; it != end; it++) {
auto tileProvider = *it;
TileDepthTransform depthTransform = tileProvider->depthTransform();
setDepthTransformUniforms(
programUniformHandler,
LayeredTextures::TextureCategory::HeightMaps,
LayeredTextureShaderUniformIdHandler::BlendLayerSuffixes::none,
i,
depthTransform);
i++;
}
// The length of the skirts is proportional to its size
programObject->setUniform("skirtLength", min(static_cast<float>(chunk.surfacePatch().halfSize().lat * 1000000), 8700.0f));
programObject->setUniform("xSegments", _grid->xSegments());
if (chunk.owner()->debugOptions.showHeightResolution) {
programObject->setUniform("vertexResolution", glm::vec2(_grid->xSegments(), _grid->ySegments()));
}
return programObject;
}
void DeferredLightingEffect::render(RenderArgs* args) {
// perform deferred lighting, rendering to free fbo
glDisable(GL_BLEND);
glDisable(GL_LIGHTING);
glDisable(GL_DEPTH_TEST);
glDisable(GL_COLOR_MATERIAL);
glDepthMask(false);
auto textureCache = DependencyManager::get<TextureCache>();
glBindFramebuffer(GL_FRAMEBUFFER, 0 );
QSize framebufferSize = textureCache->getFrameBufferSize();
// binding the first framebuffer
auto freeFBO = DependencyManager::get<GlowEffect>()->getFreeFramebuffer();
glBindFramebuffer(GL_FRAMEBUFFER, gpu::GLBackend::getFramebufferID(freeFBO));
glClear(GL_COLOR_BUFFER_BIT);
// glEnable(GL_FRAMEBUFFER_SRGB);
// glBindTexture(GL_TEXTURE_2D, primaryFBO->texture());
glBindTexture(GL_TEXTURE_2D, textureCache->getPrimaryColorTextureID());
glActiveTexture(GL_TEXTURE1);
glBindTexture(GL_TEXTURE_2D, textureCache->getPrimaryNormalTextureID());
glActiveTexture(GL_TEXTURE2);
glBindTexture(GL_TEXTURE_2D, textureCache->getPrimarySpecularTextureID());
glActiveTexture(GL_TEXTURE3);
glBindTexture(GL_TEXTURE_2D, textureCache->getPrimaryDepthTextureID());
// get the viewport side (left, right, both)
int viewport[4];
glGetIntegerv(GL_VIEWPORT, viewport);
const int VIEWPORT_X_INDEX = 0;
const int VIEWPORT_Y_INDEX = 1;
const int VIEWPORT_WIDTH_INDEX = 2;
const int VIEWPORT_HEIGHT_INDEX = 3;
float sMin = viewport[VIEWPORT_X_INDEX] / (float)framebufferSize.width();
float sWidth = viewport[VIEWPORT_WIDTH_INDEX] / (float)framebufferSize.width();
float tMin = viewport[VIEWPORT_Y_INDEX] / (float)framebufferSize.height();
float tHeight = viewport[VIEWPORT_HEIGHT_INDEX] / (float)framebufferSize.height();
bool useSkyboxCubemap = (_skybox) && (_skybox->getCubemap());
// Fetch the ViewMatrix;
glm::mat4 invViewMat;
_viewState->getViewTransform().getMatrix(invViewMat);
ProgramObject* program = &_directionalLight;
const LightLocations* locations = &_directionalLightLocations;
bool shadowsEnabled = _viewState->getShadowsEnabled();
if (shadowsEnabled) {
glActiveTexture(GL_TEXTURE4);
glBindTexture(GL_TEXTURE_2D, textureCache->getShadowDepthTextureID());
program = &_directionalLightShadowMap;
locations = &_directionalLightShadowMapLocations;
if (_viewState->getCascadeShadowsEnabled()) {
program = &_directionalLightCascadedShadowMap;
locations = &_directionalLightCascadedShadowMapLocations;
if (useSkyboxCubemap) {
program = &_directionalSkyboxLightCascadedShadowMap;
locations = &_directionalSkyboxLightCascadedShadowMapLocations;
} else if (_ambientLightMode > -1) {
program = &_directionalAmbientSphereLightCascadedShadowMap;
locations = &_directionalAmbientSphereLightCascadedShadowMapLocations;
}
program->bind();
program->setUniform(locations->shadowDistances, _viewState->getShadowDistances());
} else {
if (useSkyboxCubemap) {
program = &_directionalSkyboxLightShadowMap;
locations = &_directionalSkyboxLightShadowMapLocations;
} else if (_ambientLightMode > -1) {
program = &_directionalAmbientSphereLightShadowMap;
locations = &_directionalAmbientSphereLightShadowMapLocations;
}
program->bind();
}
program->setUniformValue(locations->shadowScale,
1.0f / textureCache->getShadowFramebuffer()->getWidth());
} else {
if (useSkyboxCubemap) {
program = &_directionalSkyboxLight;
locations = &_directionalSkyboxLightLocations;
} else if (_ambientLightMode > -1) {
program = &_directionalAmbientSphereLight;
locations = &_directionalAmbientSphereLightLocations;
}
program->bind();
}
{
auto globalLight = _allocatedLights[_globalLights.front()];
if (locations->ambientSphere >= 0) {
gpu::SphericalHarmonics sh = globalLight->getAmbientSphere();
if (useSkyboxCubemap && _skybox->getCubemap()->getIrradiance()) {
sh = (*_skybox->getCubemap()->getIrradiance());
}
for (int i =0; i <gpu::SphericalHarmonics::NUM_COEFFICIENTS; i++) {
program->setUniformValue(locations->ambientSphere + i, *(((QVector4D*) &sh) + i));
}
}
if (useSkyboxCubemap) {
glActiveTexture(GL_TEXTURE5);
glBindTexture(GL_TEXTURE_CUBE_MAP, gpu::GLBackend::getTextureID(_skybox->getCubemap()));
}
if (locations->lightBufferUnit >= 0) {
gpu::Batch batch;
batch.setUniformBuffer(locations->lightBufferUnit, globalLight->getSchemaBuffer());
gpu::GLBackend::renderBatch(batch);
}
if (_atmosphere && (locations->atmosphereBufferUnit >= 0)) {
gpu::Batch batch;
batch.setUniformBuffer(locations->atmosphereBufferUnit, _atmosphere->getDataBuffer());
gpu::GLBackend::renderBatch(batch);
}
glUniformMatrix4fv(locations->invViewMat, 1, false, reinterpret_cast< const GLfloat* >(&invViewMat));
}
float left, right, bottom, top, nearVal, farVal;
glm::vec4 nearClipPlane, farClipPlane;
_viewState->computeOffAxisFrustum(left, right, bottom, top, nearVal, farVal, nearClipPlane, farClipPlane);
program->setUniformValue(locations->nearLocation, nearVal);
float depthScale = (farVal - nearVal) / farVal;
program->setUniformValue(locations->depthScale, depthScale);
float nearScale = -1.0f / nearVal;
float depthTexCoordScaleS = (right - left) * nearScale / sWidth;
float depthTexCoordScaleT = (top - bottom) * nearScale / tHeight;
float depthTexCoordOffsetS = left * nearScale - sMin * depthTexCoordScaleS;
float depthTexCoordOffsetT = bottom * nearScale - tMin * depthTexCoordScaleT;
program->setUniformValue(locations->depthTexCoordOffset, depthTexCoordOffsetS, depthTexCoordOffsetT);
program->setUniformValue(locations->depthTexCoordScale, depthTexCoordScaleS, depthTexCoordScaleT);
renderFullscreenQuad(sMin, sMin + sWidth, tMin, tMin + tHeight);
program->release();
if (useSkyboxCubemap) {
glBindTexture(GL_TEXTURE_CUBE_MAP, 0);
if (!shadowsEnabled) {
glActiveTexture(GL_TEXTURE3);
}
}
if (shadowsEnabled) {
glBindTexture(GL_TEXTURE_2D, 0);
glActiveTexture(GL_TEXTURE3);
}
// additive blending
glEnable(GL_BLEND);
glBlendFunc(GL_ONE, GL_ONE);
glEnable(GL_CULL_FACE);
glm::vec4 sCoefficients(sWidth / 2.0f, 0.0f, 0.0f, sMin + sWidth / 2.0f);
glm::vec4 tCoefficients(0.0f, tHeight / 2.0f, 0.0f, tMin + tHeight / 2.0f);
glTexGenfv(GL_S, GL_OBJECT_PLANE, (const GLfloat*)&sCoefficients);
glTexGenfv(GL_T, GL_OBJECT_PLANE, (const GLfloat*)&tCoefficients);
// enlarge the scales slightly to account for tesselation
const float SCALE_EXPANSION = 0.05f;
const glm::vec3& eyePoint = _viewState->getCurrentViewFrustum()->getPosition();
float nearRadius = glm::distance(eyePoint, _viewState->getCurrentViewFrustum()->getNearTopLeft());
auto geometryCache = DependencyManager::get<GeometryCache>();
if (!_pointLights.empty()) {
_pointLight.bind();
_pointLight.setUniformValue(_pointLightLocations.nearLocation, nearVal);
_pointLight.setUniformValue(_pointLightLocations.depthScale, depthScale);
_pointLight.setUniformValue(_pointLightLocations.depthTexCoordOffset, depthTexCoordOffsetS, depthTexCoordOffsetT);
_pointLight.setUniformValue(_pointLightLocations.depthTexCoordScale, depthTexCoordScaleS, depthTexCoordScaleT);
for (auto lightID : _pointLights) {
auto light = _allocatedLights[lightID];
if (_pointLightLocations.lightBufferUnit >= 0) {
gpu::Batch batch;
batch.setUniformBuffer(_pointLightLocations.lightBufferUnit, light->getSchemaBuffer());
gpu::GLBackend::renderBatch(batch);
}
glUniformMatrix4fv(_pointLightLocations.invViewMat, 1, false, reinterpret_cast< const GLfloat* >(&invViewMat));
glPushMatrix();
float expandedRadius = light->getMaximumRadius() * (1.0f + SCALE_EXPANSION);
if (glm::distance(eyePoint, glm::vec3(light->getPosition())) < expandedRadius + nearRadius) {
glLoadIdentity();
glTranslatef(0.0f, 0.0f, -1.0f);
glMatrixMode(GL_PROJECTION);
glPushMatrix();
glLoadIdentity();
renderFullscreenQuad();
glPopMatrix();
glMatrixMode(GL_MODELVIEW);
} else {
glTranslatef(light->getPosition().x, light->getPosition().y, light->getPosition().z);
geometryCache->renderSphere(expandedRadius, 32, 32, glm::vec4(1.0f, 1.0f, 1.0f, 1.0f));
}
glPopMatrix();
}
_pointLights.clear();
_pointLight.release();
}
if (!_spotLights.empty()) {
_spotLight.bind();
_spotLight.setUniformValue(_spotLightLocations.nearLocation, nearVal);
_spotLight.setUniformValue(_spotLightLocations.depthScale, depthScale);
_spotLight.setUniformValue(_spotLightLocations.depthTexCoordOffset, depthTexCoordOffsetS, depthTexCoordOffsetT);
_spotLight.setUniformValue(_spotLightLocations.depthTexCoordScale, depthTexCoordScaleS, depthTexCoordScaleT);
for (auto lightID : _spotLights) {
auto light = _allocatedLights[lightID];
if (_spotLightLocations.lightBufferUnit >= 0) {
gpu::Batch batch;
batch.setUniformBuffer(_spotLightLocations.lightBufferUnit, light->getSchemaBuffer());
gpu::GLBackend::renderBatch(batch);
}
glUniformMatrix4fv(_spotLightLocations.invViewMat, 1, false, reinterpret_cast< const GLfloat* >(&invViewMat));
glPushMatrix();
float expandedRadius = light->getMaximumRadius() * (1.0f + SCALE_EXPANSION);
float edgeRadius = expandedRadius / glm::cos(light->getSpotAngle());
if (glm::distance(eyePoint, glm::vec3(light->getPosition())) < edgeRadius + nearRadius) {
glLoadIdentity();
glTranslatef(0.0f, 0.0f, -1.0f);
glMatrixMode(GL_PROJECTION);
glPushMatrix();
glLoadIdentity();
renderFullscreenQuad();
glPopMatrix();
glMatrixMode(GL_MODELVIEW);
} else {
glTranslatef(light->getPosition().x, light->getPosition().y, light->getPosition().z);
glm::quat spotRotation = rotationBetween(glm::vec3(0.0f, 0.0f, -1.0f), light->getDirection());
glm::vec3 axis = glm::axis(spotRotation);
glRotatef(glm::degrees(glm::angle(spotRotation)), axis.x, axis.y, axis.z);
glTranslatef(0.0f, 0.0f, -light->getMaximumRadius() * (1.0f + SCALE_EXPANSION * 0.5f));
geometryCache->renderCone(expandedRadius * glm::tan(light->getSpotAngle()),
expandedRadius, 32, 1);
}
glPopMatrix();
}
_spotLights.clear();
_spotLight.release();
}
glBindTexture(GL_TEXTURE_2D, 0);
glActiveTexture(GL_TEXTURE2);
glBindTexture(GL_TEXTURE_2D, 0);
glActiveTexture(GL_TEXTURE1);
glBindTexture(GL_TEXTURE_2D, 0);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, 0);
// glDisable(GL_FRAMEBUFFER_SRGB);
// End of the Lighting pass
}
void ChunkRenderer::renderChunkLocally(const Chunk& chunk, const RenderData& data) {
ProgramObject* programObject = getActivatedProgramWithTileData(
_localRenderingShaderProvider.get(),
_localProgramUniformHandler,
chunk);
if (programObject == nullptr) {
return;
}
using namespace glm;
const Ellipsoid& ellipsoid = chunk.owner()->ellipsoid();
bool performAnyBlending = false;
for (int i = 0; i < LayeredTextures::NUM_TEXTURE_CATEGORIES; ++i) {
LayeredTextures::TextureCategory category = (LayeredTextures::TextureCategory)i;
if (_tileProviderManager->getTileProviderGroup(i).levelBlendingEnabled && _tileProviderManager->getTileProviderGroup(category).getActiveTileProviders().size() > 0) {
performAnyBlending = true;
break;
}
}
if (performAnyBlending) {
float distanceScaleFactor = chunk.owner()->lodScaleFactor * chunk.owner()->ellipsoid().minimumRadius();
programObject->setUniform("distanceScaleFactor", distanceScaleFactor);
programObject->setUniform("chunkLevel", chunk.index().level);
}
// Calculate other uniform variables needed for rendering
dmat4 modelTransform = chunk.owner()->modelTransform();
dmat4 viewTransform = data.camera.combinedViewMatrix();
dmat4 modelViewTransform = viewTransform * modelTransform;
std::vector<std::string> cornerNames = { "p01", "p11", "p00", "p10" };
std::vector<Vec3> cornersCameraSpace(4);
for (int i = 0; i < 4; ++i) {
Quad q = (Quad)i;
Geodetic2 corner = chunk.surfacePatch().getCorner(q);
Vec3 cornerModelSpace = ellipsoid.cartesianSurfacePosition(corner);
Vec3 cornerCameraSpace = Vec3(dmat4(modelViewTransform) * glm::dvec4(cornerModelSpace, 1));
cornersCameraSpace[i] = cornerCameraSpace;
programObject->setUniform(cornerNames[i], vec3(cornerCameraSpace));
}
vec3 patchNormalCameraSpace = normalize(
cross(cornersCameraSpace[Quad::SOUTH_EAST] - cornersCameraSpace[Quad::SOUTH_WEST],
cornersCameraSpace[Quad::NORTH_EAST] - cornersCameraSpace[Quad::SOUTH_WEST]));
programObject->setUniform("patchNormalCameraSpace", patchNormalCameraSpace);
programObject->setUniform("projectionTransform", data.camera.projectionMatrix());
if (_tileProviderManager->getTileProviderGroup(
LayeredTextures::NightTextures).getActiveTileProviders().size() > 0 ||
_tileProviderManager->getTileProviderGroup(
LayeredTextures::WaterMasks).getActiveTileProviders().size() > 0) {
glm::vec3 directionToSunWorldSpace =
glm::normalize(-data.modelTransform.translation);
glm::vec3 directionToSunCameraSpace =
(viewTransform * glm::dvec4(directionToSunWorldSpace, 0));
data.modelTransform.translation;
programObject->setUniform("lightDirectionCameraSpace", -directionToSunCameraSpace);
}
// OpenGL rendering settings
glEnable(GL_DEPTH_TEST);
glEnable(GL_CULL_FACE);
glCullFace(GL_BACK);
// render
_grid->geometry().drawUsingActiveProgram();
// disable shader
programObject->deactivate();
}
void DeferredLightingEffect::loadLightProgram(const char* fragSource, bool limited, ProgramObject& program, LightLocations& locations) {
program.addShaderFromSourceCode(QGLShader::Vertex, (limited ? deferred_light_limited_vert : deferred_light_vert));
program.addShaderFromSourceCode(QGLShader::Fragment, fragSource);
program.link();
program.bind();
program.setUniformValue("diffuseMap", 0);
program.setUniformValue("normalMap", 1);
program.setUniformValue("specularMap", 2);
program.setUniformValue("depthMap", 3);
program.setUniformValue("shadowMap", 4);
program.setUniformValue("skyboxMap", 5);
locations.shadowDistances = program.uniformLocation("shadowDistances");
locations.shadowScale = program.uniformLocation("shadowScale");
locations.nearLocation = program.uniformLocation("near");
locations.depthScale = program.uniformLocation("depthScale");
locations.depthTexCoordOffset = program.uniformLocation("depthTexCoordOffset");
locations.depthTexCoordScale = program.uniformLocation("depthTexCoordScale");
locations.radius = program.uniformLocation("radius");
locations.ambientSphere = program.uniformLocation("ambientSphere.L00");
locations.invViewMat = program.uniformLocation("invViewMat");
GLint loc = -1;
#if (GPU_FEATURE_PROFILE == GPU_CORE)
const GLint LIGHT_GPU_SLOT = 3;
loc = glGetUniformBlockIndex(program.programId(), "lightBuffer");
if (loc >= 0) {
glUniformBlockBinding(program.programId(), loc, LIGHT_GPU_SLOT);
locations.lightBufferUnit = LIGHT_GPU_SLOT;
} else {
locations.lightBufferUnit = -1;
}
#else
loc = program.uniformLocation("lightBuffer");
if (loc >= 0) {
locations.lightBufferUnit = loc;
} else {
locations.lightBufferUnit = -1;
}
#endif
#if (GPU_FEATURE_PROFILE == GPU_CORE)
const GLint ATMOSPHERE_GPU_SLOT = 4;
loc = glGetUniformBlockIndex(program.programId(), "atmosphereBufferUnit");
if (loc >= 0) {
glUniformBlockBinding(program.programId(), loc, ATMOSPHERE_GPU_SLOT);
locations.atmosphereBufferUnit = ATMOSPHERE_GPU_SLOT;
} else {
locations.atmosphereBufferUnit = -1;
}
#else
loc = program.uniformLocation("atmosphereBufferUnit");
if (loc >= 0) {
locations.atmosphereBufferUnit = loc;
} else {
locations.atmosphereBufferUnit = -1;
}
#endif
program.release();
}
iShaderProgram::CacheLoadResult csShaderGLCGCommon::LoadFromCache (
iHierarchicalCache* cache, iBase* previous, iDocumentNode* node,
csRef<iString>* failReason, csRef<iString>* tag,
ProfileLimitsPair* cacheLimits)
{
if (!cache) return iShaderProgram::loadFail;
csRef<iShaderProgramCG> prevCG (scfQueryInterfaceSafe<iShaderProgramCG> (
previous));
csRef<iStringArray> allCachedPrograms;
if ((programType == progVP) && prevCG.IsValid())
{
csShaderGLCGFP* prevFP = static_cast<csShaderGLCGFP*> (
(iShaderProgramCG*)prevCG);
csString tagStr ("CG");
tagStr += prevFP->cacheLimits.ToString();
if (failReason) failReason->AttachNew (
new scfString ("paired cached programs not found"));
allCachedPrograms.AttachNew (new scfStringArray);
allCachedPrograms->Push (tagStr);
}
else
allCachedPrograms = cache->GetSubItems ("/");
if (!allCachedPrograms.IsValid() || (allCachedPrograms->GetSize() == 0))
{
if (failReason) failReason->AttachNew (
new scfString ("no cached programs found"));
return iShaderProgram::loadFail;
}
if (!GetProgramNode (node)) return iShaderProgram::loadFail;
csRef<iDataBuffer> programBuffer = GetProgramData();
CS::Utility::Checksum::MD5::Digest progHash = CS::Utility::Checksum::MD5::Encode (
programBuffer->GetData(), programBuffer->GetSize());
csArray<CachedShaderWrapper> cachedProgWrappers;
for (size_t i = 0; i < allCachedPrograms->GetSize(); i++)
{
const char* tag = allCachedPrograms->Get (i);
if ((tag[0] != 'C') || (tag[1] != 'G')) continue;
CachedShaderWrapper wrapper;
if (!wrapper.limits.FromString (tag+2)) continue;
wrapper.name = tag;
csString cachePath ("/");
cachePath.Append (tag);
csRef<iDataBuffer> cacheBuf = cache->ReadCache (cachePath);
if (!cacheBuf.IsValid()) continue;
csRef<iFile> cacheFile;
cacheFile.AttachNew (new csMemFile (cacheBuf, true));
wrapper.cacheFile = cacheFile;
uint32 diskMagic;
if (cacheFile->Read ((char*)&diskMagic, sizeof (diskMagic))
!= sizeof (diskMagic)) continue;
if (csLittleEndian::UInt32 (diskMagic) != cacheFileMagic)
continue;
CS::Utility::Checksum::MD5::Digest diskHash;
if (cacheFile->Read ((char*)&diskHash, sizeof (diskHash))
!= sizeof (diskHash)) continue;
if (diskHash != progHash) continue;
cachedProgWrappers.Push (wrapper);
}
if (cachedProgWrappers.GetSize() == 0)
{
if (failReason && !*failReason) failReason->AttachNew (
new scfString ("all cached programs failed to read"));
return iShaderProgram::loadFail;
}
cachedProgWrappers.Sort ();
ProfileLimits currentLimits (
(programType == progVP) ? shaderPlug->currentLimits.vp
: shaderPlug->currentLimits.fp);
bool strictMatch = (programType == progVP) ? shaderPlug->strictMatchVP
: shaderPlug->strictMatchFP;
const char* progTypeNode = 0;
switch (programType)
{
case progVP: progTypeNode = "cgvp"; break;
case progFP: progTypeNode = "cgfp"; break;
}
csString allReasons;
bool oneReadCorrectly = false;
ProfileLimits bestLimits (
CS::PluginCommon::ShaderProgramPluginGL::Other,
CG_PROFILE_UNKNOWN);
bool bestLimitsSet = false;
for (size_t i = cachedProgWrappers.GetSize(); i-- > 0;)
{
const CachedShaderWrapper& wrapper = cachedProgWrappers[i];
const ProfileLimits& limits =
(programType == progVP) ? wrapper.limits.vp : wrapper.limits.fp;
if (!bestLimitsSet)
{
bestLimits = limits;
bestLimitsSet = true;
}
if (strictMatch && (limits != currentLimits))
{
allReasons += wrapper.name;
allReasons += ": strict mismatch; ";
continue;
}
bool profileSupported =
(shaderPlug->ProfileNeedsRouting (limits.profile)
&& shaderPlug->IsRoutedProfileSupported (limits.profile))
|| cgGLIsProfileSupported (limits.profile);
if (!profileSupported)
{
allReasons += wrapper.name;
allReasons += ": Profile unsupported; ";
continue;
}
if ((limits.vendor != currentLimits.vendor)
&& (limits.vendor != CS::PluginCommon::ShaderProgramPluginGL::Other))
{
allReasons += wrapper.name;
allReasons += ": vendor mismatch; ";
continue;
}
bool limitsSupported = currentLimits >= limits;
if (!limitsSupported)
{
allReasons += wrapper.name;
allReasons += ": Limits exceeded; ";
continue;
}
iFile* cacheFile = wrapper.cacheFile;
{
uint32 diskState;
if (cacheFile->Read ((char*)&diskState, sizeof (diskState))
!= sizeof (diskState)) continue;
if (csLittleEndian::UInt32 (diskState) != cpsValid)
{
oneReadCorrectly = true;
continue;
}
}
description = CS::PluginCommon::ShaderCacheHelper::ReadString (cacheFile);
bool breakFail = false;
csRef<iDocumentNode> cgNode = node->GetNode (progTypeNode);
if (!cgNode.IsValid()) continue;
csRef<iDocumentNodeIterator> nodes = cgNode->GetNodes();
while(nodes->HasNext() && !breakFail)
{
csRef<iDocumentNode> child = nodes->Next();
if(child->GetType() != CS_NODE_ELEMENT) continue;
const char* value = child->GetValue ();
csStringID id = xmltokens.Request (value);
switch(id)
{
case XMLTOKEN_VARIABLEMAP:
if (!ParseVmap (child))
breakFail = true;
break;
case XMLTOKEN_CLIP:
if (!ParseClip (child))
breakFail = true;
break;
default:
/* Ignore unknown nodes. Invalid nodes would have been caught
by the first (not from cache) parsing */
break;
}
}
if (breakFail) continue;
csString objectCodeCachePathArc =
CS::PluginCommon::ShaderCacheHelper::ReadString (cacheFile);
if (objectCodeCachePathArc.IsEmpty()) continue;
csString objectCodeCachePathItem =
CS::PluginCommon::ShaderCacheHelper::ReadString (cacheFile);
if (objectCodeCachePathItem.IsEmpty()) continue;
ProgramObjectID progId (objectCodeCachePathArc, objectCodeCachePathItem);
ProgramObject programObj;
//if (!LoadObjectCodeFromCompileCache (limits, cache))
if (!shaderPlug->progCache.LoadObject (progId, programObj))
continue;
oneReadCorrectly = true;
if (program)
{
cgDestroyProgram (program);
program = 0;
}
if (!programObj.IsValid()) continue;
cgGetError(); // Clear error
program = cgCreateProgram (shaderPlug->context,
CG_OBJECT, programObj.GetObjectCode(), limits.profile, 0, 0);
if (!program) continue;
CGerror err = cgGetError();
if (err != CG_NO_ERROR)
{
const char* errStr = cgGetErrorString (err);
shaderPlug->Report (CS_REPORTER_SEVERITY_WARNING,
"Cg error %s", errStr);
continue;
}
programProfile = limits.profile;
programPositionInvariant = programObj.GetFlags() & ProgramObject::flagPositionInvariant;
unusedParams = programObj.GetUnusedParams();
ClipsToVmap();
GetParamsFromVmap();
bool doLoadToGL = !shaderPlug->ProfileNeedsRouting (programProfile);
cgGetError(); // Clear error
if (doLoadToGL)
{
cgGLLoadProgram (program);
}
else
{
cgCompileProgram (program);
}
shaderPlug->PrintAnyListing();
err = cgGetError();
if ((err != CG_NO_ERROR)
|| (doLoadToGL && !cgGLIsProgramLoaded (program)))
{
//if (shaderPlug->debugDump)
//DoDebugDump();
const char* errStr = cgGetErrorString (err);
shaderPlug->Report (CS_REPORTER_SEVERITY_WARNING,
"Cg error %s", errStr);
if (shaderPlug->doVerbose
&& (((programType == progVP) && (programProfile >= CG_PROFILE_ARBVP1))
|| ((programType == progFP) && (programProfile >= CG_PROFILE_ARBFP1))))
{
const char* err = (char*)glGetString (GL_PROGRAM_ERROR_STRING_ARB);
shaderPlug->Report (CS_REPORTER_SEVERITY_WARNING,
"OpenGL error string: %s", err);
}
shaderPlug->SetCompiledSource (0);
continue;
}
GetPostCompileParamProps ();
if (shaderPlug->debugDump)
DoDebugDump();
tag->AttachNew (new scfString (wrapper.name));
if (cacheLimits != 0)
*cacheLimits = wrapper.limits;
bool loaded = !shaderPlug->ProfileNeedsRouting (programProfile)
|| LoadProgramWithPS1 ();
if (loaded && (bestLimits < currentLimits))
{
/* The best found program is worse than the current limits, so pretend
that the shader program failed (instead just being 'invalid') -
that will make xmlshader try to load the program from scratch,
ie with current limits, which may just work. */
if (failReason)
failReason->AttachNew (new scfString ("Provoking clean load with current limits"));
return iShaderProgram::loadFail;
}
return loaded ? iShaderProgram::loadSuccessShaderValid
: iShaderProgram::loadSuccessShaderInvalid;
}
if (oneReadCorrectly)
{
if (bestLimits < currentLimits)
{
/* The 'invalid' programs may compile with the current limits -
so again, provoke clean load */
if (failReason)
failReason->AttachNew (new scfString ("Provoking clean load with current limits"));
return iShaderProgram::loadFail;
}
else
return iShaderProgram::loadSuccessShaderInvalid;
}
else
return iShaderProgram::loadFail;
}
void CubeBlock::Render()
{
rc->PushModelView();
this->ApplyTransform();
if (!GLEW_ARB_shader_objects) {
RenderFixed();
rc->PopModelView();
return;
}
ProgramObject *program = rc->GetCurProgram();
for (int i = 0; i < 6; i++)
{
if (!fRenderPickMode) {
Color3f *c = GetSideColor(i);
if (c == &borderDiffuse)
program->Uniform("RenderBackSide", 1);
program->Uniform("Mode", 0);
program->Uniform("FrontMaterial.ambient", 1, Color3f(1).data);
program->Uniform("FrontMaterial.diffuse", 1, c->data);
program->Uniform("FrontMaterial.shininess", 70);
rc->PushModelView();
rc->MultModelView(face_transform[i]);
face->Draw();
rc->PopModelView();
if (c == &borderDiffuse)
program->Uniform("RenderBackSide", 0);
}
else {
int id = pickId | (1 << (i+10));
GLubyte r = id & 0xff;
GLubyte g = id >> 8;
program->Uniform("Mode", 2);
program->Uniform("FrontMaterial.diffuse", r/255.0f, g/255.0f, 1/255.0f);
rc->PushModelView();
rc->MultModelView(face_transform[i]);
face_pickMode->Draw();
rc->PopModelView();
}
}
if (!fRenderPickMode)
{
program->Uniform("Mode", 1);
program->Uniform("FrontMaterial.ambient", 1, borderAmbient.data);
program->Uniform("FrontMaterial.diffuse", 1, borderDiffuse.data);
if (fUseReducedModel) {
program->Uniform("UseSpecularMap", 0);
program->Uniform("FrontMaterial.shininess", 70);
border_reduced->Draw();
}
else {
program->Uniform("UseSpecularMap", 1);
program->Uniform("FrontMaterial.shininess", 200);
border->Draw();
}
}
rc->PopModelView();
}
