bool render()
{
glm::vec2 WindowSize(this->getWindowSize());
glClearBufferfv(GL_COLOR, 0, &glm::vec4(1.0f, 0.5f, 0.0f, 1.0f)[0]);
{
glBindBuffer(GL_UNIFORM_BUFFER, BufferName[buffer::TRANSFORM]);
glm::mat4* Pointer = (glm::mat4*)glMapBufferRange(
GL_UNIFORM_BUFFER, 0, sizeof(glm::mat4),
GL_MAP_WRITE_BIT | GL_MAP_INVALIDATE_BUFFER_BIT);
glm::mat4 Projection = glm::ortho(0.f, 256.f, 0.f, 256.f, 0.f, 16.f);
glm::mat4 Model = glm::mat4(1.0f);
*Pointer = Projection * this->view() * Model;
// Make sure the uniform buffer is uploaded
glUnmapBuffer(GL_UNIFORM_BUFFER);
}
glBindBufferBase(GL_UNIFORM_BUFFER, semantic::uniform::TRANSFORM0, BufferName[buffer::TRANSFORM]);
glBindVertexArray(VertexArrayName);
glActiveTexture(GL_TEXTURE0);
glBindProgramPipeline(PipelineName[program::UINT]);
{
glViewportIndexedfv(0, &glm::vec4(Viewport[texture::RGBA8UI])[0]);
glBindTexture(GL_TEXTURE_2D, TextureName[texture::RGBA8UI]);
glDrawElementsInstancedBaseVertexBaseInstance(GL_TRIANGLES, ElementCount, GL_UNSIGNED_SHORT, 0, 1, 0, 0);
}
glBindProgramPipeline(PipelineName[program::NORM]);
{
glViewportIndexedfv(0, &glm::vec4(Viewport[texture::RGBA32F])[0]);
glBindTexture(GL_TEXTURE_2D, TextureName[texture::RGBA32F]);
glDrawElementsInstancedBaseVertexBaseInstance(GL_TRIANGLES, ElementCount, GL_UNSIGNED_SHORT, 0, 1, 0, 0);
glViewportIndexedfv(0, &glm::vec4(Viewport[texture::RGBA8])[0]);
glBindTexture(GL_TEXTURE_2D, TextureName[texture::RGBA8]);
glDrawElementsInstancedBaseVertexBaseInstance(GL_TRIANGLES, ElementCount, GL_UNSIGNED_SHORT, 0, 1, 0, 0);
glViewportIndexedfv(0, &glm::vec4(Viewport[texture::RGBA8_SNORM])[0]);
glBindTexture(GL_TEXTURE_2D, TextureName[texture::RGBA8_SNORM]);
glDrawElementsInstancedBaseVertexBaseInstance(GL_TRIANGLES, ElementCount, GL_UNSIGNED_SHORT, 0, 1, 0, 0);
}
return true;
}
bool render()
{
glm::vec2 WindowSize(this->getWindowSize());
glm::mat4 Projection = glm::ortho(-1.0f, 1.0f, 1.0f,-1.0f, 1.0f, -1.0f);
glm::mat4 View = glm::mat4(1.0f);
glm::mat4 Model = glm::mat4(1.0f);
glm::mat4 MVP = Projection * View * Model;
glProgramUniformMatrix4fv(ProgramName[LAYERING], UniformMVP[LAYERING], 1, GL_FALSE, &MVP[0][0]);
glProgramUniformMatrix4fv(ProgramName[VIEWPORT], UniformMVP[VIEWPORT], 1, GL_FALSE, &MVP[0][0]);
glProgramUniform1i(ProgramName[VIEWPORT], UniformDiffuse, 0);
// Pass 1
{
glBindFramebuffer(GL_FRAMEBUFFER, FramebufferName);
glViewportIndexedfv(0, &glm::vec4(0, 0, FRAMEBUFFER_SIZE)[0]);
glUseProgram(ProgramName[LAYERING]);
glBindVertexArray(VertexArrayName[LAYERING]);
glDrawElementsInstancedBaseVertex(GL_TRIANGLES, ElementCount, GL_UNSIGNED_SHORT, NULL, 1, 0);
}
// Pass 2
{
GLint Border = 2;
glBindFramebuffer(GL_FRAMEBUFFER, 0);
glClearBufferfv(GL_COLOR, 0, &glm::vec4(0)[0]);
glViewportIndexedfv(0, &glm::vec4(Border, Border, WindowSize * 0.5f - 2.0f * Border)[0]);
glViewportIndexedfv(1, &glm::vec4((WindowSize.x * 0.5f) + Border, Border, WindowSize * 0.5f - 2.0f * Border)[0]);
glViewportIndexedfv(2, &glm::vec4((WindowSize.x * 0.5f) + Border, (WindowSize.y * 0.5f) + 1, WindowSize * 0.5f - 2.0f * Border)[0]);
glViewportIndexedfv(3, &glm::vec4(Border, (WindowSize.y * 0.5f) + Border, WindowSize * 0.5f - 2.0f * Border)[0]);
glUseProgram(ProgramName[VIEWPORT]);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D_ARRAY, TextureColorbufferName);
glBindSampler(0, SamplerName);
glBindVertexArray(VertexArrayName[VIEWPORT]);
glDrawElementsInstancedBaseVertex(GL_TRIANGLES, ElementCount, GL_UNSIGNED_SHORT, nullptr, 1, 0);
}
return true;
}
bool render()
{
glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
glm::vec2 WindowSize(this->getWindowSize());
{
glBindBuffer(GL_UNIFORM_BUFFER, BufferName[buffer::TRANSFORM]);
glm::mat4* Pointer = (glm::mat4*)glMapBufferRange(
GL_UNIFORM_BUFFER, 0, sizeof(glm::mat4),
GL_MAP_WRITE_BIT | GL_MAP_INVALIDATE_BUFFER_BIT);
glm::mat4 Projection = glm::perspective(glm::pi<float>() * 0.25f, WindowSize.x / WindowSize.y, 0.1f, 100.0f);
*Pointer = Projection * this->view() * glm::mat4(1.0f);
// Make sure the uniform buffer is uploaded
glUnmapBuffer(GL_UNIFORM_BUFFER);
}
glViewportIndexedfv(0, &glm::vec4(0, 0, WindowSize)[0]);
glClearBufferfv(GL_COLOR, 0, &glm::vec4(0.0f)[0]);
glBindProgramPipeline(PipelineName);
glBindBufferBase(GL_UNIFORM_BUFFER, semantic::uniform::TRANSFORM0, BufferName[buffer::TRANSFORM]);
glBindVertexArray(VertexArrayName);
glPatchParameteri(GL_PATCH_VERTICES, VertexCount);
assert(!validate(ProgramName[program::VERT]));
glDrawArraysInstancedBaseInstance(GL_PATCHES, 0, VertexCount, 1, 0);
return true;
}
void display()
{
{
// Compute the MVP (Model View Projection matrix)
glm::mat4 Projection = glm::perspective(45.0f, 4.0f / 3.0f, 0.1f, 100.0f);
glm::mat4 ViewTranslate = glm::translate(glm::mat4(1.0f), glm::vec3(0.0f, 0.0f, -Window.TranlationCurrent.y));
glm::mat4 ViewRotateX = glm::rotate(ViewTranslate, Window.RotationCurrent.y, glm::vec3(1.f, 0.f, 0.f));
glm::mat4 View = glm::rotate(ViewRotateX, Window.RotationCurrent.x, glm::vec3(0.f, 1.f, 0.f));
glm::mat4 Model = glm::mat4(1.0f);
glm::mat4 MVP = Projection * View * Model;
glBindBuffer(GL_UNIFORM_BUFFER, BufferName[buffer::TRANSFORM]);
glm::mat4* Pointer = (glm::mat4*)glMapBufferRange(GL_UNIFORM_BUFFER, 0, sizeof(MVP), GL_MAP_WRITE_BIT);
*Pointer = MVP;
glUnmapBuffer(GL_UNIFORM_BUFFER);
}
glViewportIndexedfv(0, &glm::vec4(0, 0, Window.Size.x, Window.Size.y)[0]);
glClearBufferfv(GL_COLOR, 0, &glm::vec4(1.0f, 0.5f, 0.0f, 1.0f)[0]);
glBindProgramPipeline(PipelineName);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, Texture2DName);
glBindBufferBase(GL_UNIFORM_BUFFER, glf::semantic::uniform::TRANSFORM0, BufferName[buffer::TRANSFORM]);
glBindVertexArray(VertexArrayName);
glBufferAddressRangeNV(GL_VERTEX_ATTRIB_ARRAY_ADDRESS_NV, glf::semantic::attr::POSITION, Address, VertexSize);
glBufferAddressRangeNV(GL_VERTEX_ATTRIB_ARRAY_ADDRESS_NV, glf::semantic::attr::TEXCOORD, Address + sizeof(glm::vec2), VertexSize - sizeof(glm::vec2));
glDrawArraysInstancedBaseInstance(GL_TRIANGLES, 0, VertexCount, 1, 0);
glf::swapBuffers();
}
void renderFB(GLuint Texture2DName)
{
glm::mat4 Perspective = glm::perspective(45.0f, float(Window.Size.x) / Window.Size.y, 0.1f, 100.0f);
glm::mat4 ViewTranslate = glm::translate(glm::mat4(1.0f), glm::vec3(0.0f, 0.0f, -Window.TranlationCurrent.y * 2.0));
glm::mat4 ViewRotateX = glm::rotate(ViewTranslate, Window.RotationCurrent.y, glm::vec3(1.f, 0.f, 0.f));
glm::mat4 View = glm::rotate(ViewRotateX, Window.RotationCurrent.x, glm::vec3(0.f, 1.f, 0.f));
glm::mat4 Model = glm::mat4(1.0f);
glm::mat4 MVP = Perspective * View * Model;
glProgramUniformMatrix4fv(ProgramName[program::VERTEX], UniformMVP, 1, GL_FALSE, &MVP[0][0]);
glViewportIndexedfv(0, &glm::vec4(0, 0, Window.Size.x, Window.Size.y)[0]);
glBindFramebuffer(GL_FRAMEBUFFER, 0);
glClearBufferfv(GL_COLOR, 0, &glm::vec4(0.0f, 0.0f, 0.0f, 1.0f)[0]);
glBindMultiTextureEXT(GL_TEXTURE0, GL_TEXTURE_2D, Texture2DName);
glBindSampler(0, SamplerName);
glBindVertexArray(VertexArrayName);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, BufferName[buffer::ELEMENT]);
glDrawElementsInstancedBaseVertex(GL_TRIANGLES, ElementCount, GL_UNSIGNED_SHORT, NULL, 1, 0);
glf::checkError("renderFB");
}
bool render()
{
glm::vec2 WindowSize(this->getWindowSize());
glm::mat4 Projection = glm::perspective(glm::pi<float>() * 0.25f, 4.0f / 3.0f, 0.1f, 100.0f);
glm::mat4 Model = glm::mat4(1.0f);
glm::mat4 MVP = Projection * this->view() * Model;
glProgramUniformMatrix4fv(ProgramName[program::VERT], UniformMVP, 1, GL_FALSE, &MVP[0][0]);
glProgramUniform1i(ProgramName[program::FRAG], UniformDiffuse, 0);
glViewportIndexedfv(0, &glm::vec4(0, 0, WindowSize.x, WindowSize.y)[0]);
glClearBufferfv(GL_COLOR, 0, &glm::vec4(0.0f)[0]);
glBindProgramPipeline(PipelineName);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, Texture2DName);
glBindVertexArray(VertexArrayName);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, BufferName[buffer::ELEMENT]); //!\ Need to be called after glBindVertexArray
glDrawElementsInstancedBaseVertex(GL_TRIANGLES, ElementCount, GL_UNSIGNED_INT, nullptr, 1, 0);
return true;
}
void display()
{
glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
glm::mat4 Projection = glm::perspective(45.0f, 4.0f / 3.0f, 0.1f, 100.0f);
glm::mat4 ViewTranslate = glm::translate(glm::mat4(1.0f), glm::vec3(0.0f, 0.0f, -Window.TranlationCurrent.y));
glm::mat4 ViewRotateX = glm::rotate(ViewTranslate, Window.RotationCurrent.y, glm::vec3(1.f, 0.f, 0.f));
glm::mat4 View = glm::rotate(ViewRotateX, Window.RotationCurrent.x, glm::vec3(0.f, 1.f, 0.f));
glm::mat4 Model = glm::mat4(1.0f);
glm::mat4 MVP = Projection * View * Model;
glProgramUniformMatrix4fv(ProgramName[program::VERT], UniformMVP, 1, GL_FALSE, &MVP[0][0]);
glViewportIndexedfv(0, &glm::vec4(0, 0, Window.Size)[0]);
glClearBufferfv(GL_COLOR, 0, &glm::vec4(0.0f)[0]);
glBindProgramPipeline(PipelineName);
glBindVertexArray(VertexArrayName);
glPatchParameteri(GL_PATCH_VERTICES, VertexCount);
glDrawArraysInstanced(GL_PATCHES, 0, VertexCount, 1);
glf::checkError("display");
glf::swapBuffers();
}
void display()
{
// Compute the MVP (Model View Projection matrix)
glm::mat4 Projection = glm::perspective(45.0f, 4.0f / 3.0f, 0.1f, 100.0f);
glm::mat4 ViewTranslate = glm::translate(glm::mat4(1.0f), glm::vec3(0.0f, 0.0f, -Window.TranlationCurrent.y));
glm::mat4 ViewRotateX = glm::rotate(ViewTranslate, Window.RotationCurrent.y, glm::vec3(1.f, 0.f, 0.f));
glm::mat4 View = glm::rotate(ViewRotateX, Window.RotationCurrent.x, glm::vec3(0.f, 1.f, 0.f));
glm::mat4 Model = glm::mat4(1.0f);
glm::mat4 MVP = Projection * View * Model;
// Set the value of uniforms
glProgramUniformMatrix4fv(ProgramName[program::VERT], UniformMVP, 1, GL_FALSE, &MVP[0][0]);
glProgramUniform4fv(ProgramName[program::FRAG], UniformDiffuse, 1, &glm::vec4(1.0f, 0.5f, 0.0f, 1.0f)[0]);
// Set the display viewport
glViewportIndexedfv(0, &glm::vec4(0, 0, Window.Size.x, Window.Size.y)[0]);
// Clear color buffer with white
float Depth(1.0f);
glClearBufferfv(GL_DEPTH, 0, &Depth);
glClearBufferfv(GL_COLOR, 0, &glm::vec4(1.0f)[0]);
// Bind program
glBindProgramPipeline(PipelineName);
// Bind vertex array & draw
glBindVertexArray(VertexArrayName);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, BufferName[buffer::ELEMENT]); // Must be called after glBindVertexArray
glDrawElementsInstancedBaseVertex(GL_TRIANGLES, ElementCount, GL_UNSIGNED_SHORT, NULL, 1, 0);
glf::checkError("display");
glf::swapBuffers();
}
bool render()
{
glm::vec2 WindowSize(this->getWindowSize());
glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
glm::mat4 Projection = glm::perspective(glm::pi<float>() * 0.25f, WindowSize.x / WindowSize.y, 0.1f, 100.0f);
glm::mat4 Model = glm::mat4(1.0f);
glm::mat4 MVP = Projection * this->view() * Model;
glProgramUniformMatrix4fv(ProgramName[program::VERT], UniformMVP, 1, GL_FALSE, &MVP[0][0]);
glViewportIndexedfv(0, &glm::vec4(0, 0, WindowSize)[0]);
glClearBufferfv(GL_COLOR, 0, &glm::vec4(0.0f)[0]);
glBindProgramPipeline(PipelineName);
glBindVertexArray(VertexArrayName);
glPatchParameteri(GL_PATCH_VERTICES, VertexCount);
assert(!validate(ProgramName[program::VERT]));
glDrawArraysInstancedBaseInstance(GL_PATCHES, 0, VertexCount, 1, 0);
return true;
}
bool begin()
{
bool Success(true);
// Validate OpenGL support
Success = Success && glf::checkGLVersion(SAMPLE_MAJOR_VERSION, SAMPLE_MINOR_VERSION);
Success = Success && glf::checkExtension("GL_ARB_multi_draw_indirect");
// Create and initialize objects
if(Success && glf::checkExtension("GL_ARB_debug_output"))
Success = initDebugOutput();
if(Success)
Success = initProgram();
if(Success)
Success = initBuffer();
if(Success)
Success = initVertexArray();
if(Success)
Success = initTexture();
// Set initial rendering states
glEnable(GL_DEPTH_TEST);
glViewportIndexedfv(0, &glm::vec4(0, 0, Window.Size.x, Window.Size.y)[0]);
glBindProgramPipeline(PipelineName);
glBindVertexArray(VertexArrayName);
glBindBufferBase(GL_UNIFORM_BUFFER, glf::semantic::uniform::TRANSFORM0, BufferName[buffer::TRANSFORM]);
glBindBufferBase(GL_UNIFORM_BUFFER, glf::semantic::uniform::INDIRECTION, BufferName[buffer::VERTEX_INDIRECTION]);
glProvokingVertex(GL_FIRST_VERTEX_CONVENTION);
return Success;
}
void display()
{
// Compute the MVP (Model View Projection matrix)
glm::mat4 Projection = glm::perspective(45.0f, 4.0f / 3.0f, 0.1f, 100.0f);
glm::mat4 ViewTranslateZ = glm::translate(glm::mat4(1.0), glm::vec3(0.0f, 0.0f, -Window.TranlationCurrent.y));
glm::mat4 ViewRotateX = glm::rotate(ViewTranslateZ, float(Window.RotationCurrent.y), glm::vec3(1.f, 0.f, 0.f));
glm::mat4 ViewRotateY = glm::rotate(ViewRotateX, float(Window.RotationCurrent.x), glm::vec3(0.f, 1.f, 0.f));
glm::mat4 View = ViewRotateY;
glm::mat4 Model = glm::mat4(1.0f);
glm::mat4 MVP = Projection * View * Model;
glProgramUniformMatrix4fv(ProgramName[program::VERT], UniformMVP, 1, GL_FALSE, &MVP[0][0]);
glProgramUniform1i(ProgramName[program::FRAG], UniformDiffuse, 0);
glViewportIndexedfv(0, &glm::vec4(0, 0, Window.Size.x, Window.Size.y)[0]);
glClearBufferfv(GL_COLOR, 0, &glm::vec4(0.0f)[0]);
glBindProgramPipeline(PipelineName);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, Texture2DName);
glBindVertexArray(VertexArrayName);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, BufferName[buffer::ELEMENT]); //!\ Need to be called after glBindVertexArray
glDrawElementsInstancedBaseVertex(GL_TRIANGLES, ElementCount, GL_UNSIGNED_INT, NULL, 1, 0);
glf::checkError("display");
glf::swapBuffers();
}
bool render()
{
glm::vec2 WindowSize(this->getWindowSize());
{
glm::mat4 Model = glm::mat4(1.0f);
glm::mat4 Projection = glm::perspective(glm::pi<float>() * 0.25f, WindowSize.x / WindowSize.y, 0.1f, 100.0f);
glm::mat4 MVP = Projection * this->view() * Model;
glBindBuffer(GL_UNIFORM_BUFFER, BufferName[buffer::TRANSFORM]);
glm::mat4* Pointer = (glm::mat4*)glMapBufferRange(GL_UNIFORM_BUFFER, 0, sizeof(MVP), GL_MAP_WRITE_BIT | GL_MAP_INVALIDATE_BUFFER_BIT);
*Pointer = MVP;
glUnmapBuffer(GL_UNIFORM_BUFFER);
}
glViewportIndexedfv(0, &glm::vec4(0, 0, WindowSize.x, WindowSize.y)[0]);
glClearBufferfv(GL_COLOR, 0, &glm::vec4(1.0f, 0.5f, 0.0f, 1.0f)[0]);
glBindProgramPipeline(PipelineName);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, TextureName[texture::COPY]);
glBindBufferBase(GL_UNIFORM_BUFFER, semantic::uniform::TRANSFORM0, BufferName[buffer::TRANSFORM]);
glBindVertexArray(VertexArrayName);
glDrawArraysInstancedBaseInstance(GL_TRIANGLES, 0, VertexCount, 1, 0);
return true;
}
static bool
generate_fb(const struct grid_info grid, unsigned idx)
{
if (!fb[idx]) {
glGenFramebuffers(1, &fb[idx]);
glGenRenderbuffers(1, &cb[idx]);
glGenRenderbuffers(1, &zb[idx]);
}
glBindFramebuffer(GL_FRAMEBUFFER, fb[idx]);
glBindRenderbuffer(GL_RENDERBUFFER, cb[idx]);
glRenderbufferStorage(GL_RENDERBUFFER, grid.format->format,
grid.size.x, grid.size.y);
glFramebufferRenderbuffer(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
GL_RENDERBUFFER, cb[idx]);
glBindRenderbuffer(GL_RENDERBUFFER, zb[idx]);
glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH_COMPONENT32F,
grid.size.x, grid.size.y);
glFramebufferRenderbuffer(GL_DRAW_FRAMEBUFFER, GL_DEPTH_ATTACHMENT,
GL_RENDERBUFFER, zb[idx]);
vp[idx][0] = 0;
vp[idx][1] = 0;
vp[idx][2] = grid.size.x;
vp[idx][3] = grid.size.y;
glViewportIndexedfv(0, vp[idx]);
return piglit_check_gl_error(GL_NO_ERROR);
}
void display()
{
glm::dmat4 Projection = glm::perspective(45.0, 4.0 / 3.0, 0.1, 100.0);
glm::dmat4 ViewTranslateZ = glm::translate(glm::dmat4(1.0), glm::dvec3(0.0f, 0.0f, -Window.TranlationCurrent.y));
glm::dmat4 ViewRotateX = glm::rotate(ViewTranslateZ, double(Window.RotationCurrent.y), glm::dvec3(1.f, 0.f, 0.f));
glm::dmat4 ViewRotateY = glm::rotate(ViewRotateX, double(Window.RotationCurrent.x), glm::dvec3(0.f, 1.f, 0.f));
glm::dmat4 View = ViewRotateY;
glm::dmat4 Model = glm::dmat4(1.0f);
glm::dmat4 MVP = Projection * View * Model;
glProgramUniformMatrix4dv(ProgramName[program::VERT], UniformMVP, 1, GL_FALSE, &MVP[0][0]);
glProgramUniform4dv(ProgramName[program::FRAG], UniformDiffuse, 1, &glm::dvec4(1.0f, 0.5f, 0.0f, 1.0f)[0]);
glViewportIndexedfv(0, &glm::vec4(0, 0, Window.Size.x, Window.Size.y)[0]);
glClearBufferfv(GL_COLOR, 0, &glm::vec4(0.0f)[0]);
glBindProgramPipeline(PipelineName);
glBindVertexArray(VertexArrayName);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, BufferName[buffer::ELEMENT]);
glDrawElementsInstancedBaseVertex(GL_TRIANGLES, ElementCount, GL_UNSIGNED_SHORT, NULL, 1, 0);
glf::checkError("display");
glf::swapBuffers();
}
bool render()
{
glm::vec2 WindowSize(this->getWindowSize());
// Compute the MVP (Model View Projection matrix)
glm::mat4 Projection = glm::perspective(glm::pi<float>() * 0.25f, WindowSize.x / WindowSize.y, 0.1f, 100.0f);
glm::mat4 Model = glm::mat4(1.0f);
glm::mat4 MVP = Projection * this->view() * Model;
// Set the value of uniforms
glProgramUniformMatrix4fv(ProgramName[program::VERT], UniformMVP, 1, GL_FALSE, &MVP[0][0]);
glProgramUniform4fv(ProgramName[program::FRAG], UniformDiffuse, 1, &glm::vec4(1.0f, 0.5f, 0.0f, 1.0f)[0]);
// Set the display viewport
glViewportIndexedfv(0, &glm::vec4(0, 0, WindowSize.x, WindowSize.y)[0]);
// Clear color buffer with white
float Depth(1.0f);
glClearBufferfv(GL_DEPTH, 0, &Depth);
glClearBufferfv(GL_COLOR, 0, &glm::vec4(1.0f)[0]);
// Bind program
glBindProgramPipeline(PipelineName);
// Bind vertex array & draw
glBindVertexArray(VertexArrayName);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, BufferName[buffer::ELEMENT]); // Must be called after glBindVertexArray
glDrawElementsInstancedBaseVertex(GL_TRIANGLES, ElementCount, GL_UNSIGNED_SHORT, nullptr, 1, 0);
return true;
}
bool render()
{
glBindFramebuffer(GL_FRAMEBUFFER, 0);
glClearBufferfv(GL_COLOR, 0, &glm::vec4(1.0f, 0.5f, 0.0f, 1.0f)[0]);
glBindProgramPipeline(PipelineName);
// Pass 1, render the scene in a multisampled framebuffer
glEnable(GL_MULTISAMPLE);
glEnable(GL_SAMPLE_SHADING);
glMinSampleShading(4.0f);
//glEnable(GL_SAMPLE_MASK);
//glSampleMaski(0, 0xFF);
renderFBO();
glDisable(GL_MULTISAMPLE);
// Resolved multisampling
glBindFramebuffer(GL_READ_FRAMEBUFFER, FramebufferRenderName);
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, FramebufferResolveName);
glBlitFramebuffer(
0, 0, FRAMEBUFFER_SIZE.x, FRAMEBUFFER_SIZE.y,
0, 0, FRAMEBUFFER_SIZE.x, FRAMEBUFFER_SIZE.y,
GL_COLOR_BUFFER_BIT, GL_NEAREST);
glBindFramebuffer(GL_FRAMEBUFFER, 0);
// Pass 2, render the colorbuffer from the multisampled framebuffer
glm::vec2 WindowSize(this->getWindowSize());
glViewportIndexedfv(0, &glm::vec4(0, 0, WindowSize)[0]);
renderFB();
return true;
}
bool testDrawArrays::render()
{
glm::vec2 const WindowSize(this->getWindowSize());
float Depth(1.0f);
glClearBufferfv(GL_DEPTH, 0, &Depth);
glClearBufferfv(GL_COLOR, 0, &glm::vec4(1.0f)[0]);
{
glBindBuffer(GL_UNIFORM_BUFFER, this->BufferName[buffer::BUFFER_FRAME]);
glm::mat4* Pointer = reinterpret_cast<glm::mat4*>(glMapBufferRange(GL_UNIFORM_BUFFER, 0, sizeof(glm::mat4), GL_MAP_WRITE_BIT | GL_MAP_INVALIDATE_BUFFER_BIT));
glm::mat4 Projection = glm::perspective(glm::pi<float>() * 0.25f, WindowSize.x / WindowSize.y, 0.1f, 1000.0f);
glm::mat4 View = this->view();
glm::mat4 Model = glm::mat4(1.0f);
glm::mat4 MVP = Projection * View * Model;
*Pointer = Projection * View * Model;
glUnmapBuffer(GL_UNIFORM_BUFFER);
}
glViewportIndexedfv(0, &glm::vec4(0, 0, WindowSize)[0]);
this->beginTimer();
switch(this->DrawType)
{
case INSTANCED:
glDrawArraysInstancedBaseInstance(GL_TRIANGLES, 0, VertexCount, static_cast<GLsizei>(DrawCount), 0);
break;
case MULTI_DISCARD:
case MULTI_DRAW:
for(int i = 0; i < 2; ++i)
glMultiDrawArraysIndirect(GL_TRIANGLES, 0, static_cast<GLsizei>(DrawCount / 2), 0);
break;
case DRAW_PACKED:
for(std::size_t DrawIndex(0); DrawIndex < DrawCount; ++DrawIndex)
{
if(this->UniformUpdate != testDrawArrays::CONSTANT_UNIFORM && this->UniformUpdate != testDrawArrays::NO_UNIFORM)
::updateUniform(this->ProgramName, DrawIndex, this->UniformUpdate);
glDrawArrays(GL_TRIANGLES, static_cast<GLint>(this->VertexDataType == SEPARATED_VERTEX_DATA ? VertexCount * DrawIndex : 0), VertexCount);
}
break;
case DRAW_PARAMS:
for(std::size_t DrawIndex(0); DrawIndex < DrawCount; ++DrawIndex)
{
if(this->UniformUpdate != testDrawArrays::CONSTANT_UNIFORM && this->UniformUpdate != testDrawArrays::NO_UNIFORM)
::updateUniform(this->ProgramName, DrawIndex, this->UniformUpdate);
glDrawArraysInstancedBaseInstance(GL_TRIANGLES, static_cast<GLint>(this->VertexDataType == SEPARATED_VERTEX_DATA ? VertexCount * DrawIndex : 0), VertexCount, 1, 0);
}
break;
default:
assert(0);
break;
}
this->endTimer();
return true;
}
void CascadedShadowMappingRenderer::updateLightProjAndViewports()
{
// Find a bounding box of whole camera frustum in light view space.
nv::vec4f frustumMin(std::numeric_limits<float>::max());
nv::vec4f frustumMax(std::numeric_limits<float>::lowest());
frustumBoundingBoxLightViewSpace(m_nearPlane, m_farPlane, frustumMin, frustumMax);
// Update light projection matrix to only cover the area viewable by the camera
nv::ortho3D(m_lightProjMatrix, frustumMin.x, frustumMax.x, frustumMin.y, frustumMax.y, 0.0f, frustumMin.z);
// Find a bounding box of segment in light view space.
float nearSegmentPlane = 0.0f;
for (unsigned int i = 0; i < m_frustumSegmentCount; ++i) {
nv::vec4f segmentMin(std::numeric_limits<float>::max());
nv::vec4f segmentMax(std::numeric_limits<float>::lowest());
frustumBoundingBoxLightViewSpace(nearSegmentPlane, m_farPlanes[i], segmentMin, segmentMax);
// Update viewports.
nv::vec2f frustumSize(frustumMax.x - frustumMin.x, frustumMax.y - frustumMin.y);
const float segmentSizeX = segmentMax.x - segmentMin.x;
const float segmentSizeY = segmentMax.y - segmentMin.y;
const float segmentSize = segmentSizeX < segmentSizeY ? segmentSizeY : segmentSizeX;
const nv::vec2f offsetBottomLeft(segmentMin.x - frustumMin.x, segmentMin.y - frustumMin.y);
const nv::vec2f offsetSegmentSizeRatio(offsetBottomLeft.x / segmentSize, offsetBottomLeft.y / segmentSize);
const nv::vec2f frustumSegmentSizeRatio(frustumSize.x / segmentSize, frustumSize.y / segmentSize);
nv::vec2f pixelOffsetTopLeft(offsetSegmentSizeRatio * LIGHT_TEXTURE_SIZE);
nv::vec2f pixelFrustumSize(frustumSegmentSizeRatio * LIGHT_TEXTURE_SIZE);
// Scale factor that helps if frustum size is supposed to be bigger
// than maximum viewport size.
nv::vec2f scaleFactor(
m_viewportDims[0] < pixelFrustumSize.x ? m_viewportDims[0] / pixelFrustumSize.x : 1.0f,
m_viewportDims[1] < pixelFrustumSize.y ? m_viewportDims[1] / pixelFrustumSize.y : 1.0f);
pixelOffsetTopLeft *= scaleFactor;
pixelFrustumSize *= scaleFactor;
m_lightViewports[i] = nv::vec4f(-pixelOffsetTopLeft.x, -pixelOffsetTopLeft.y, pixelFrustumSize.x, pixelFrustumSize.y);
glViewportIndexedfv(i, m_lightViewports[i]._array);
// Update light view-projection matrices per segment.
nv::matrix4f lightProj;
nv::ortho3D(lightProj, segmentMin.x, segmentMin.x + segmentSize, segmentMin.y, segmentMin.y + segmentSize, 0.0f, frustumMin.z);
nv::matrix4f lightScale;
lightScale.set_scale(nv::vec3f(0.5f * scaleFactor.x, 0.5f * scaleFactor.y, 0.5f));
nv::matrix4f lightBias;
lightBias.set_translate(nv::vec3f(0.5f * scaleFactor.x, 0.5f * scaleFactor.y, 0.5f));
m_lightSegmentVPSBMatrices[i] = lightBias * lightScale * lightProj * m_lightViewMatrix;
nearSegmentPlane = m_normalizedFarPlanes[i];
}
// Set remaining viewports to some kind of standard state.
for (unsigned int i = m_frustumSegmentCount; i < MAX_CAMERA_FRUSTUM_SPLIT_COUNT; ++i) {
glViewportIndexedf(i, 0, 0, LIGHT_TEXTURE_SIZE, LIGHT_TEXTURE_SIZE);
}
}
bool render()
{
glm::vec2 WindowSize(this->getWindowSize());
glm::mat4 Projection = glm::ortho(-1.0f, 1.0f, 1.0f,-1.0f, 1.0f, -1.0f);
glm::mat4 View = glm::mat4(1.0f);
glm::mat4 Model = glm::mat4(1.0f);
glm::mat4 MVP = Projection * View * Model;
glProgramUniformMatrix4fv(ProgramName[LAYERING], UniformMVP[LAYERING], 1, GL_FALSE, &MVP[0][0]);
glProgramUniformMatrix4fv(ProgramName[VIEWPORT], UniformMVP[VIEWPORT], 1, GL_FALSE, &MVP[0][0]);
// Pass 1
{
glBindFramebuffer(GL_FRAMEBUFFER, FramebufferName);
// glBindFramebuffer(GL_FRAMEBUFFER, 0);
glViewportIndexedfv(0, &glm::vec4(0, 0, FRAMEBUFFER_SIZE)[0]);
glBindProgramPipeline(PipelineName[LAYERING]);
glBindVertexArray(VertexArrayName[LAYERING]);
glDrawArraysInstancedBaseInstance(GL_TRIANGLES, 0, VertexCount, 4, 0);
}
// Pass 2
{
GLint Border = 2;
glBindFramebuffer(GL_FRAMEBUFFER, 0);
glViewportIndexedfv(0, &glm::vec4(Border, Border, WindowSize * 0.5f - 2.0f * Border)[0]);
glViewportIndexedfv(1, &glm::vec4((WindowSize.x * 0.5f) + Border, Border, WindowSize * 0.5f - 2.0f * Border)[0]);
glViewportIndexedfv(2, &glm::vec4((WindowSize.x * 0.5f) + Border, (WindowSize.y * 0.5f) + 1, WindowSize * 0.5f - 2.0f * Border)[0]);
glViewportIndexedfv(3, &glm::vec4(Border, (WindowSize.y * 0.5f) + Border, WindowSize * 0.5f - 2.0f * Border)[0]);
glBindProgramPipeline(PipelineName[VIEWPORT]);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D_ARRAY, TextureColorbufferName);
glBindSampler(0, SamplerName);
glBindVertexArray(VertexArrayName[VIEWPORT]);
glDrawArraysInstancedBaseInstance(GL_TRIANGLES, 0, VertexCount, 4, 0);
}
return true;
}
bool render()
{
glm::vec2 WindowSize(this->getWindowSize());
{
glBindBuffer(GL_UNIFORM_BUFFER, BufferName[buffer::TRANSFORM]);
glm::mat4* Pointer = (glm::mat4*)glMapBufferRange(
GL_UNIFORM_BUFFER, 0, sizeof(glm::mat4),
GL_MAP_WRITE_BIT | GL_MAP_INVALIDATE_BUFFER_BIT);
glm::mat4 Projection = glm::perspectiveFov(glm::pi<float>() * 0.25f, WindowSize.x, WindowSize.y, 0.1f, 100.0f);
glm::mat4 Model = glm::mat4(1.0f);
*Pointer = Projection * this->view() * Model;
glUnmapBuffer(GL_UNIFORM_BUFFER);
}
// Clear
glBindFramebuffer(GL_FRAMEBUFFER, FramebufferName[framebuffer::CLEAR]);
glClearBufferfv(GL_COLOR, 0, &glm::vec4(1.0f, 0.5f, 0.0f, 1.0f)[0]);
// Render
glViewportIndexedf(0, 0, 0, WindowSize.x * this->Supersampling, WindowSize.y * this->Supersampling);
glBindFramebuffer(GL_FRAMEBUFFER, FramebufferName[framebuffer::BLEND]);
glBindVertexArray(this->VertexArrayName[pipeline::RENDER]);
glBindProgramPipeline(PipelineName[pipeline::RENDER]);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, TextureName[texture::DIFFUSE]);
glBindImageTexture(semantic::image::DIFFUSE, TextureName[texture::COLORBUFFER], 0, GL_FALSE, 0, GL_WRITE_ONLY, GL_RGBA8);
glBindBufferBase(GL_UNIFORM_BUFFER, semantic::uniform::TRANSFORM0, BufferName[buffer::TRANSFORM]);
glBindBufferBase(GL_SHADER_STORAGE_BUFFER, semantic::storage::VERTEX, BufferName[buffer::VERTEX]);
for (std::size_t i = 0; i < this->Viewports.size(); ++i)
{
glViewportIndexedfv(0, &this->Viewports[i][0]);
glDrawElementsInstancedBaseVertexBaseInstance(GL_TRIANGLES, ElementCount, GL_UNSIGNED_SHORT, 0, 1, 0, 0);
}
// Splash
glViewportIndexedf(0, 0, 0, WindowSize.x, WindowSize.y);
glBindFramebuffer(GL_FRAMEBUFFER, 0);
glBindVertexArray(this->VertexArrayName[pipeline::SPLASH]);
glBindProgramPipeline(PipelineName[pipeline::SPLASH]);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, TextureName[texture::COLORBUFFER]);
glDrawArraysInstancedBaseInstance(GL_TRIANGLES, 0, 3, 1, 0);
return true;
}
bool render()
{
glm::vec2 WindowSize(this->getWindowSize());
{
glBindBuffer(GL_UNIFORM_BUFFER, BufferName[buffer::TRANSFORM]);
glm::mat4* Pointer = (glm::mat4*)glMapBufferRange(
GL_UNIFORM_BUFFER, 0, sizeof(glm::mat4),
GL_MAP_WRITE_BIT | GL_MAP_INVALIDATE_BUFFER_BIT);
glm::mat4 Projection = glm::perspective(glm::pi<float>() * 0.25f, WindowSize.x / WindowSize.y, 0.1f, 100.0f);
glm::mat4 Model = glm::mat4(1.0f);
*Pointer = Projection * this->view() * Model;
// Make sure the uniform buffer is uploaded
glUnmapBuffer(GL_UNIFORM_BUFFER);
}
glClearTexImage(TextureName[texture::COLORBUFFER], 0, GL_RGBA, GL_FLOAT, &glm::vec4(1.0f, 0.5f, 0.0f, 1.0f)[0]);
glBindFramebuffer(GL_FRAMEBUFFER, FramebufferName);
// Bind rendering objects
glBindProgramPipeline(PipelineName[pipeline::TEXTURE]);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, TextureName[texture::DIFFUSE]);
glActiveTexture(GL_TEXTURE1);
glBindTexture(GL_TEXTURE_2D, TextureName[texture::COLORBUFFER]);
glBindVertexArray(VertexArrayName[pipeline::TEXTURE]);
glBindBufferBase(GL_UNIFORM_BUFFER, semantic::uniform::TRANSFORM0, BufferName[buffer::TRANSFORM]);
for (std::size_t i = 0; i < this->Viewports.size(); ++i)
{
glViewportIndexedfv(0, &this->Viewports[i][0]);
glDrawElementsInstancedBaseVertexBaseInstance(GL_TRIANGLES, ElementCount, GL_UNSIGNED_SHORT, 0, 1, 0, 0);
glTextureBarrier();
}
glBindFramebuffer(GL_FRAMEBUFFER, 0);
glViewportIndexedf(0, 0, 0, WindowSize.x, WindowSize.y);
glBindProgramPipeline(PipelineName[pipeline::SPLASH]);
glActiveTexture(GL_TEXTURE0);
glBindVertexArray(VertexArrayName[pipeline::SPLASH]);
glBindTexture(GL_TEXTURE_2D, TextureName[texture::COLORBUFFER]);
glDrawArraysInstancedBaseInstance(GL_TRIANGLES, 0, 3, 1, 0);
return true;
}
void testScreenspaceCoherence::render()
{
float Depth(1.0f);
glClearBufferfv(GL_DEPTH, 0, &Depth);
glClearBufferfv(GL_COLOR, 0, &glm::vec4(0.0f)[0]);
glViewportIndexedfv(0, &glm::vec4(0, 0, this->getWindowSize())[0]);
this->beginTimer();
glDrawArraysInstancedBaseInstance(GL_TRIANGLES, 0, this->DrawVertexCount, 1, 0);
//glDrawArraysInstancedBaseInstance(GL_TRIANGLES, 0, ::VertexCount, 1, 0);
this->endTimer();
}
void display()
{
glm::mat4 ViewTranslate = glm::translate(glm::mat4(1.0f), glm::vec3(0.0f, 0.0f, -Window.TranlationCurrent.y));
glm::mat4 ViewRotateX = glm::rotate(ViewTranslate, Window.RotationCurrent.y, glm::vec3(1.f, 0.f, 0.f));
glm::mat4 View = glm::rotate(ViewRotateX, Window.RotationCurrent.x, glm::vec3(0.f, 1.f, 0.f));
glm::mat4 Model = glm::mat4(1.0f);
glEnable(GL_SCISSOR_TEST);
glDisable(GL_FRAMEBUFFER_SRGB);
glScissorIndexed(0, 0, 0, Window.Size.x, Window.Size.y);
glClearBufferfv(GL_COLOR, 0, &glm::vec4(1.0f, 0.5f, 0.0f, 1.0f)[0]);
{
glm::mat4 Projection = glm::perspective(45.0f, float(FRAMEBUFFER_SIZE.x) / float(FRAMEBUFFER_SIZE.y), 0.1f, 100.0f);
glm::mat4 MVP = Projection * View * Model;
glViewportIndexedf(0, 0, 0, float(FRAMEBUFFER_SIZE.x), float(FRAMEBUFFER_SIZE.y));
glDisable(GL_FRAMEBUFFER_SRGB);
glBindFramebuffer(GL_FRAMEBUFFER, FramebufferName);
glClearBufferfv(GL_COLOR, 0, &glm::vec4(0.0f, 0.0f, 0.0f, 1.0f)[0]);
renderScene(glm::vec4(0.0f, 0.0f, 0.0f, 1.0f), MVP, Texture2DName);
glBindFramebuffer(GL_FRAMEBUFFER, 0);
}
{
glm::mat4 Projection = glm::perspective(45.0f, float(Window.Size.x) / float(Window.Size.y), 0.1f, 100.0f);
glm::mat4 MVP = Projection * View * Model;
glViewportIndexedfv(0, &glm::vec4(0, 0, Window.Size.x, Window.Size.y)[0]);
// Correct display
glScissorIndexed(0, 0, Window.Size.y / 2 - 1, Window.Size.x, Window.Size.y / 2);
glEnable(GL_FRAMEBUFFER_SRGB);
glSamplerParameteri(SamplerName, GL_TEXTURE_SRGB_DECODE_EXT, GL_SKIP_DECODE_EXT); // GL_DECODE_EXT
renderScene(glm::vec4(1.0f, 0.5f, 0.0f, 1.0f), MVP, ColorbufferName);
glDisable(GL_FRAMEBUFFER_SRGB);
// Incorrected display
glScissorIndexed(0, 0, 0, Window.Size.x, Window.Size.y / 2);
glEnable(GL_FRAMEBUFFER_SRGB);
glSamplerParameteri(SamplerName, GL_TEXTURE_SRGB_DECODE_EXT, GL_DECODE_EXT); // GL_DECODE_EXT
renderScene(glm::vec4(1.0f, 0.5f, 0.0f, 1.0f), MVP, ColorbufferName);
glDisable(GL_FRAMEBUFFER_SRGB);
}
glf::swapBuffers();
glf::checkError("display");
}
void renderFBO()
{
static int SamplesPositionsIndex = 0;
++SamplesPositionsIndex;
SamplesPositionsIndex %= 2;
{
glm::mat4 Perspective = glm::perspective(glm::pi<float>() * 0.25f, float(FRAMEBUFFER_SIZE.x) / FRAMEBUFFER_SIZE.y, 0.1f, 100.0f);
glm::mat4 Model = glm::mat4(1.0f);
glm::mat4 MVP = Perspective * this->view() * Model;
glBindBuffer(GL_UNIFORM_BUFFER, BufferName[buffer::TRANSFORM]);
glm::mat4* Pointer = (glm::mat4*)glMapBufferRange(GL_UNIFORM_BUFFER, 0, sizeof(MVP), GL_MAP_WRITE_BIT);
*Pointer = MVP;
glUnmapBuffer(GL_UNIFORM_BUFFER);
}
glViewportIndexedfv(0, &glm::vec4(0, 0, FRAMEBUFFER_SIZE.x, FRAMEBUFFER_SIZE.y)[0]);
glBindFramebuffer(GL_FRAMEBUFFER, FramebufferRenderName);
glm::vec2 SamplesPositions[2][4] =
{
{
glm::vec2(0.75f, 0.25f),
glm::vec2(1.00f, 0.75f),
glm::vec2(0.25f, 1.00f),
glm::vec2(0.00f, 0.25f)
},
{
glm::vec2(0.25f, 0.25f),
glm::vec2(1.00f, 0.25f),
glm::vec2(0.75f, 1.00f),
glm::vec2(0.00f, 0.75f)
}
};
glSetMultisamplefvAMD(GL_SAMPLE_POSITION, 0, &SamplesPositions[SamplesPositionsIndex][0][0]);
glSetMultisamplefvAMD(GL_SAMPLE_POSITION, 1, &SamplesPositions[SamplesPositionsIndex][1][0]);
glSetMultisamplefvAMD(GL_SAMPLE_POSITION, 2, &SamplesPositions[SamplesPositionsIndex][2][0]);
glSetMultisamplefvAMD(GL_SAMPLE_POSITION, 3, &SamplesPositions[SamplesPositionsIndex][3][0]);
glClearBufferfv(GL_COLOR, 0, &glm::vec4(0.0f, 0.5f, 1.0f, 1.0f)[0]);
glBindTextures(0, 1, &TextureName);
glBindVertexArray(VertexArrayName);
glDrawElementsInstancedBaseVertex(GL_TRIANGLES, ElementCount, GL_UNSIGNED_SHORT, NULL, 1, 0);
}
void display()
{
glm::mat4 Projection = glm::ortho(-1.0f, 1.0f, 1.0f,-1.0f, 1.0f, -1.0f);
glm::mat4 View = glm::mat4(1.0f);
glm::mat4 Model = glm::mat4(1.0f);
glm::mat4 MVP = Projection * View * Model;
glProgramUniformMatrix4fv(ProgramName[LAYERING], UniformMVP[LAYERING], 1, GL_FALSE, &MVP[0][0]);
glProgramUniformMatrix4fv(ProgramName[IMAGE_2D], UniformMVP[IMAGE_2D], 1, GL_FALSE, &MVP[0][0]);
glProgramUniform1i(ProgramName[IMAGE_2D], UniformDiffuse, 0);
// Pass 1
{
glBindSampler(0, 0);
glBindFramebuffer(GL_FRAMEBUFFER, FramebufferName);
glViewportIndexedf(0, 0, 0, float(FRAMEBUFFER_SIZE.x), float(FRAMEBUFFER_SIZE.y));
glUseProgram(ProgramName[LAYERING]);
glBindVertexArray(VertexArrayName[LAYERING]);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, BufferName[BUFFER_ELEMENT]);
glDrawElementsInstancedBaseVertex(GL_TRIANGLES, ElementCount, GL_UNSIGNED_SHORT, NULL, 1, 0);
}
// Pass 2
{
glBindFramebuffer(GL_FRAMEBUFFER, 0);
glUseProgram(ProgramName[IMAGE_2D]);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D_ARRAY, TextureColorbufferName);
glBindSampler(0, SamplerName);
glBindVertexArray(VertexArrayName[IMAGE_2D]);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, BufferName[BUFFER_ELEMENT]);
for(int i = 0; i < 4; ++i)
{
glProgramUniform1i(ProgramName[IMAGE_2D], UniformLayer, i);
glViewportIndexedfv(0, &glm::vec4(Viewport[i])[0]);
glDrawElementsInstancedBaseVertex(GL_TRIANGLES, ElementCount, GL_UNSIGNED_SHORT, NULL, 1, 0);
}
}
glf::checkError("display");
glf::swapBuffers();
}
void GLFrameBuffer::End()
{
Unbind();
// Generate mipmap if needed
for (size_t i = 0; i < p->renderTargets.size(); i++)
{
p->renderTargets[i]->Bind();
p->renderTargets[i]->GenerateMipmap();
p->renderTargets[i]->Unbind();
}
// Restore
glDrawBuffer(GL_BACK_LEFT);
glViewportIndexedfv(
0,
glm::value_ptr(glm::vec4(
(float)p->viewport[0], (float)p->viewport[1],
(float)p->viewport[2], (float)p->viewport[3])));
}
void GLFrameBuffer::Begin()
{
// Save current viewport
glGetIntegerv(GL_VIEWPORT, &p->viewport.x);
Bind();
// Enable buffers
glDrawBuffers((int)p->colorAttachmentList.size(), &p->colorAttachmentList[0]);
float depth = 1.0f;
glClearBufferfv(GL_DEPTH, 0, &depth);
for (int i = 0; i < (int)p->colorAttachmentList.size(); i++)
{
// Second argument of glClearBufferfv is not GL_COLOR_ATTACHMENTi​ values
// but the buffer index specified by glDrawBuffers
// cf. https://www.opengl.org/wiki/Framebuffer#Buffer_clearing
glClearBufferfv(GL_COLOR, i, glm::value_ptr(p->clearColor));
}
glViewportIndexedfv(0, glm::value_ptr(glm::vec4(0.0f, 0.0f, (float)p->width, (float)p->height)));
}
bool render()
{
glm::dvec2 WindowSize(this->getWindowSize());
glm::dmat4 Projection = glm::perspective(glm::pi<double>() * 0.25, WindowSize.x / WindowSize.y, 0.1, 100.0);
glm::dmat4 View(this->view());
glm::dmat4 Model = glm::dmat4(1.0f);
glm::dmat4 MVP = Projection * View * Model;
glProgramUniformMatrix4dv(ProgramName[program::VERT], UniformMVP, 1, GL_FALSE, &MVP[0][0]);
glProgramUniform4dv(ProgramName[program::FRAG], UniformDiffuse, 1, &glm::dvec4(1.0f, 0.5f, 0.0f, 1.0f)[0]);
glViewportIndexedfv(0, &glm::vec4(0, 0, WindowSize)[0]);
glClearBufferfv(GL_COLOR, 0, &glm::vec4(0.0f)[0]);
glBindProgramPipeline(PipelineName);
glBindVertexArray(VertexArrayName);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, BufferName[buffer::ELEMENT]);
glDrawElementsInstancedBaseVertex(GL_TRIANGLES, ElementCount, GL_UNSIGNED_SHORT, nullptr, 1, 0);
return true;
}
void display()
{
glm::mat4 Projection = glm::perspective(45.0f, 4.0f / 3.0f, 0.1f, 100.0f);
glm::mat4 ViewTranslate = glm::translate(glm::mat4(1.0f), glm::vec3(0.0f, 0.0f, -Window.TranlationCurrent.y));
glm::mat4 ViewRotateX = glm::rotate(ViewTranslate, Window.RotationCurrent.y, glm::vec3(1.f, 0.f, 0.f));
glm::mat4 View = glm::rotate(ViewRotateX, Window.RotationCurrent.x, glm::vec3(0.f, 1.f, 0.f));
glm::mat4 Model = glm::mat4(1.0f);
glm::mat4 MVP = Projection * View * Model;
glViewportIndexedfv(0, &glm::vec4(0, 0, Window.Size.x, Window.Size.y)[0]);
glClearBufferfv(GL_COLOR, 0, &glm::vec4(0.0f)[0]);
glUseProgram(ProgramName);
glUniformMatrix4fv(UniformMVP, 1, GL_FALSE, &MVP[0][0]);
glUniform4fv(UniformDiffuse, 1, &glm::vec4(1.0f, 0.5f, 0.0f, 1.0f)[0]);
glBindVertexArray(VertexArrayName);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, ElementBufferName); //!\ Need to be called after glBindVertexArray...
glBindBuffer(GL_DRAW_INDIRECT_BUFFER, IndirectBufferName);
glMultiDrawElementsIndirectAMD(GL_TRIANGLES, GL_UNSIGNED_INT, 0, 2, sizeof(DrawElementsIndirectCommand));
glf::checkError("display");
glf::swapBuffers();
}
void display()
{
// Compute the MVP (Model View Projection matrix)
glm::mat4 Projection = glm::perspective(45.0f, 4.0f / 3.0f, 0.1f, 100.0f);
glm::mat4 ViewTranslate = glm::translate(glm::mat4(1.0f), glm::vec3(0.0f, 0.0f, -Window.TranlationCurrent.y));
glm::mat4 ViewRotateX = glm::rotate(ViewTranslate, Window.RotationCurrent.y, glm::vec3(1.f, 0.f, 0.f));
glm::mat4 View = glm::rotate(ViewRotateX, Window.RotationCurrent.x, glm::vec3(0.f, 1.f, 0.f));
glm::mat4 Model = glm::mat4(1.0f);
glm::mat4 MVP = Projection * View * Model;
glf::checkError("display 4");
glProgramUniformMatrix4fv(ProgramName[program::VERTEX], UniformMVP, 1, GL_FALSE, &MVP[0][0]);
glProgramUniform1i(ProgramName[program::FRAGMENT], UniformDiffuse, 0);
glf::checkError("display 5");
glViewportIndexedfv(0, &glm::vec4(0, 0, Window.Size.x, Window.Size.y)[0]);
glClearBufferfv(GL_COLOR, 0, &glm::vec4(0.0f, 0.0f, 0.0f, 1.0f)[0]);
glf::checkError("display 6");
glBindProgramPipeline(PipelineName);
glf::checkError("display 7");
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, Texture2DName);
glBindVertexArray(VertexArrayName);
glf::checkError("display 8");
glBufferAddressRangeNV(GL_VERTEX_ATTRIB_ARRAY_ADDRESS_NV, glf::semantic::attr::POSITION, Address, VertexSize);
glBufferAddressRangeNV(GL_VERTEX_ATTRIB_ARRAY_ADDRESS_NV, glf::semantic::attr::TEXCOORD, Address + sizeof(glm::vec2), VertexSize - sizeof(glm::vec2));
glf::checkError("display 9");
glDrawArraysInstanced(GL_TRIANGLES, 0, VertexCount, 1);
glf::checkError("display");
glf::swapBuffers();
}
