void Antialiasing::run(const render::RenderContextPointer& renderContext, const Inputs& inputs) {
assert(renderContext->args);
assert(renderContext->args->hasViewFrustum());
RenderArgs* args = renderContext->args;
auto& deferredFrameTransform = inputs.get0();
auto& sourceBuffer = inputs.get1();
auto& linearDepthBuffer = inputs.get2();
auto& velocityBuffer = inputs.get3();
int width = sourceBuffer->getWidth();
int height = sourceBuffer->getHeight();
if (_antialiasingBuffers->get(0)) {
if (_antialiasingBuffers->get(0)->getSize() != uvec2(width, height)) {// || (sourceBuffer && (_antialiasingBuffer->getRenderBuffer(1) != sourceBuffer->getRenderBuffer(0)))) {
_antialiasingBuffers->edit(0).reset();
_antialiasingBuffers->edit(1).reset();
_antialiasingTextures[0].reset();
_antialiasingTextures[1].reset();
}
}
if (!_antialiasingBuffers->get(0)) {
// Link the antialiasing FBO to texture
for (int i = 0; i < 2; i++) {
auto& antiAliasingBuffer = _antialiasingBuffers->edit(i);
antiAliasingBuffer = gpu::FramebufferPointer(gpu::Framebuffer::create("antialiasing"));
auto format = gpu::Element::COLOR_SRGBA_32; // DependencyManager::get<FramebufferCache>()->getLightingTexture()->getTexelFormat();
auto defaultSampler = gpu::Sampler(gpu::Sampler::FILTER_MIN_MAG_LINEAR);
_antialiasingTextures[i] = gpu::Texture::createRenderBuffer(format, width, height, gpu::Texture::SINGLE_MIP, defaultSampler);
antiAliasingBuffer->setRenderBuffer(0, _antialiasingTextures[i]);
}
}
gpu::doInBatch("Antialiasing::run", args->_context, [&](gpu::Batch& batch) {
batch.enableStereo(false);
batch.setViewportTransform(args->_viewport);
// TAA step
getAntialiasingPipeline();
batch.setResourceFramebufferSwapChainTexture(AntialiasingPass_HistoryMapSlot, _antialiasingBuffers, 0);
batch.setResourceTexture(AntialiasingPass_SourceMapSlot, sourceBuffer->getRenderBuffer(0));
batch.setResourceTexture(AntialiasingPass_VelocityMapSlot, velocityBuffer->getVelocityTexture());
// This is only used during debug
batch.setResourceTexture(AntialiasingPass_DepthMapSlot, linearDepthBuffer->getLinearDepthTexture());
batch.setUniformBuffer(AntialiasingPass_ParamsSlot, _params);
batch.setUniformBuffer(AntialiasingPass_FrameTransformSlot, deferredFrameTransform->getFrameTransformBuffer());
batch.setFramebufferSwapChain(_antialiasingBuffers, 1);
batch.setPipeline(getAntialiasingPipeline());
batch.draw(gpu::TRIANGLE_STRIP, 4);
// Blend step
batch.setResourceTexture(AntialiasingPass_SourceMapSlot, nullptr);
batch.setFramebuffer(sourceBuffer);
if (_params->isDebug()) {
batch.setPipeline(getDebugBlendPipeline());
} else {
batch.setPipeline(getBlendPipeline());
// Disable sharpen if FXAA
batch._glUniform1f(_sharpenLoc, _sharpen * _params.get().regionInfo.z);
}
batch.setResourceFramebufferSwapChainTexture(AntialiasingPass_NextMapSlot, _antialiasingBuffers, 1);
batch.draw(gpu::TRIANGLE_STRIP, 4);
batch.advance(_antialiasingBuffers);
batch.setUniformBuffer(AntialiasingPass_ParamsSlot, nullptr);
batch.setUniformBuffer(AntialiasingPass_FrameTransformSlot, nullptr);
batch.setResourceTexture(AntialiasingPass_DepthMapSlot, nullptr);
batch.setResourceTexture(AntialiasingPass_HistoryMapSlot, nullptr);
batch.setResourceTexture(AntialiasingPass_VelocityMapSlot, nullptr);
batch.setResourceTexture(AntialiasingPass_NextMapSlot, nullptr);
});
args->popViewFrustum();
}
void AmbientOcclusion::run(const render::SceneContextPointer& sceneContext, const render::RenderContextPointer& renderContext) {
assert(renderContext->getArgs());
assert(renderContext->getArgs()->_viewFrustum);
RenderArgs* args = renderContext->getArgs();
gpu::doInBatch(args->_context, [=](gpu::Batch& batch) {
auto framebufferCache = DependencyManager::get<FramebufferCache>();
QSize framebufferSize = framebufferCache->getFrameBufferSize();
float fbWidth = framebufferSize.width();
float fbHeight = framebufferSize.height();
float sMin = args->_viewport.x / fbWidth;
float sWidth = args->_viewport.z / fbWidth;
float tMin = args->_viewport.y / fbHeight;
float tHeight = args->_viewport.w / fbHeight;
glm::mat4 projMat;
Transform viewMat;
args->_viewFrustum->evalProjectionMatrix(projMat);
args->_viewFrustum->evalViewTransform(viewMat);
batch.setProjectionTransform(projMat);
batch.setViewTransform(viewMat);
batch.setModelTransform(Transform());
// Occlusion step
getOcclusionPipeline();
batch.setResourceTexture(0, framebufferCache->getPrimaryDepthTexture());
batch.setResourceTexture(1, framebufferCache->getDeferredNormalTexture());
_occlusionBuffer->setRenderBuffer(0, _occlusionTexture);
batch.setFramebuffer(_occlusionBuffer);
// Occlusion uniforms
g_scale = 1.0f;
g_bias = 1.0f;
g_sample_rad = 1.0f;
g_intensity = 1.0f;
// Bind the first gpu::Pipeline we need - for calculating occlusion buffer
batch.setPipeline(getOcclusionPipeline());
batch._glUniform1f(_gScaleLoc, g_scale);
batch._glUniform1f(_gBiasLoc, g_bias);
batch._glUniform1f(_gSampleRadiusLoc, g_sample_rad);
batch._glUniform1f(_gIntensityLoc, g_intensity);
// setup uniforms for unpacking a view-space position from the depth buffer
// This is code taken from DeferredLightEffect.render() method in DeferredLightingEffect.cpp.
// DeferredBuffer.slh shows how the unpacking is done and what variables are needed.
// initialize the view-space unpacking uniforms using frustum data
float left, right, bottom, top, nearVal, farVal;
glm::vec4 nearClipPlane, farClipPlane;
args->_viewFrustum->computeOffAxisFrustum(left, right, bottom, top, nearVal, farVal, nearClipPlane, farClipPlane);
float depthScale = (farVal - nearVal) / farVal;
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;
// now set the position-unpacking unforms
batch._glUniform1f(_nearLoc, nearVal);
batch._glUniform1f(_depthScaleLoc, depthScale);
batch._glUniform2f(_depthTexCoordOffsetLoc, depthTexCoordOffsetS, depthTexCoordOffsetT);
batch._glUniform2f(_depthTexCoordScaleLoc, depthTexCoordScaleS, depthTexCoordScaleT);
batch._glUniform2f(_renderTargetResLoc, fbWidth, fbHeight);
batch._glUniform2f(_renderTargetResInvLoc, 1.0f / fbWidth, 1.0f / fbHeight);
glm::vec4 color(0.0f, 0.0f, 0.0f, 1.0f);
glm::vec2 bottomLeft(-1.0f, -1.0f);
glm::vec2 topRight(1.0f, 1.0f);
glm::vec2 texCoordTopLeft(0.0f, 0.0f);
glm::vec2 texCoordBottomRight(1.0f, 1.0f);
DependencyManager::get<GeometryCache>()->renderQuad(batch, bottomLeft, topRight, texCoordTopLeft, texCoordBottomRight, color);
// Vertical blur step
getVBlurPipeline();
batch.setResourceTexture(0, _occlusionTexture);
_vBlurBuffer->setRenderBuffer(0, _vBlurTexture);
batch.setFramebuffer(_vBlurBuffer);
// Bind the second gpu::Pipeline we need - for calculating blur buffer
batch.setPipeline(getVBlurPipeline());
DependencyManager::get<GeometryCache>()->renderQuad(batch, bottomLeft, topRight, texCoordTopLeft, texCoordBottomRight, color);
// Horizontal blur step
getHBlurPipeline();
batch.setResourceTexture(0, _vBlurTexture);
_hBlurBuffer->setRenderBuffer(0, _hBlurTexture);
batch.setFramebuffer(_hBlurBuffer);
// Bind the third gpu::Pipeline we need - for calculating blur buffer
batch.setPipeline(getHBlurPipeline());
DependencyManager::get<GeometryCache>()->renderQuad(batch, bottomLeft, topRight, texCoordTopLeft, texCoordBottomRight, color);
// Blend step
getBlendPipeline();
batch.setResourceTexture(0, _hBlurTexture);
batch.setFramebuffer(framebufferCache->getDeferredFramebuffer());
// Bind the fourth gpu::Pipeline we need - for blending the primary color buffer with blurred occlusion texture
batch.setPipeline(getBlendPipeline());
DependencyManager::get<GeometryCache>()->renderQuad(batch, bottomLeft, topRight, texCoordTopLeft, texCoordBottomRight, color);
});
}
void Antialiasing::run(const render::RenderContextPointer& renderContext, const gpu::FramebufferPointer& sourceBuffer) {
assert(renderContext->args);
assert(renderContext->args->hasViewFrustum());
RenderArgs* args = renderContext->args;
gpu::doInBatch("Antialiasing::run", args->_context, [&](gpu::Batch& batch) {
batch.enableStereo(false);
batch.setViewportTransform(args->_viewport);
// FIXME: NEED to simplify that code to avoid all the GeometryCahce call, this is purely pixel manipulation
float fbWidth = renderContext->args->_viewport.z;
float fbHeight = renderContext->args->_viewport.w;
// float sMin = args->_viewport.x / fbWidth;
// float sWidth = args->_viewport.z / fbWidth;
// float tMin = args->_viewport.y / fbHeight;
// float tHeight = args->_viewport.w / fbHeight;
glm::mat4 projMat;
Transform viewMat;
args->getViewFrustum().evalProjectionMatrix(projMat);
args->getViewFrustum().evalViewTransform(viewMat);
batch.setProjectionTransform(projMat);
batch.setViewTransform(viewMat, true);
batch.setModelTransform(Transform());
// FXAA step
auto pipeline = getAntialiasingPipeline(renderContext->args);
batch.setResourceTexture(0, sourceBuffer->getRenderBuffer(0));
batch.setFramebuffer(_antialiasingBuffer);
batch.setPipeline(pipeline);
// initialize the view-space unpacking uniforms using frustum data
float left, right, bottom, top, nearVal, farVal;
glm::vec4 nearClipPlane, farClipPlane;
args->getViewFrustum().computeOffAxisFrustum(left, right, bottom, top, nearVal, farVal, nearClipPlane, farClipPlane);
// float depthScale = (farVal - nearVal) / farVal;
// 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;
batch._glUniform2f(_texcoordOffsetLoc, 1.0f / fbWidth, 1.0f / fbHeight);
glm::vec4 color(0.0f, 0.0f, 0.0f, 1.0f);
glm::vec2 bottomLeft(-1.0f, -1.0f);
glm::vec2 topRight(1.0f, 1.0f);
glm::vec2 texCoordTopLeft(0.0f, 0.0f);
glm::vec2 texCoordBottomRight(1.0f, 1.0f);
DependencyManager::get<GeometryCache>()->renderQuad(batch, bottomLeft, topRight, texCoordTopLeft, texCoordBottomRight, color, _geometryId);
// Blend step
batch.setResourceTexture(0, _antialiasingTexture);
batch.setFramebuffer(sourceBuffer);
batch.setPipeline(getBlendPipeline());
DependencyManager::get<GeometryCache>()->renderQuad(batch, bottomLeft, topRight, texCoordTopLeft, texCoordBottomRight, color, _geometryId);
});
}
void AmbientOcclusion::run(const render::SceneContextPointer& sceneContext, const render::RenderContextPointer& renderContext) {
assert(renderContext->args);
assert(renderContext->args->_viewFrustum);
RenderArgs* args = renderContext->args;
gpu::Batch batch;
glm::mat4 projMat;
Transform viewMat;
args->_viewFrustum->evalProjectionMatrix(projMat);
args->_viewFrustum->evalViewTransform(viewMat);
batch.setProjectionTransform(projMat);
batch.setViewTransform(viewMat);
batch.setModelTransform(Transform());
// Occlusion step
getOcclusionPipeline();
batch.setResourceTexture(0, DependencyManager::get<FramebufferCache>()->getPrimaryDepthTexture());
batch.setResourceTexture(1, DependencyManager::get<FramebufferCache>()->getPrimaryNormalTexture());
_occlusionBuffer->setRenderBuffer(0, _occlusionTexture);
batch.setFramebuffer(_occlusionBuffer);
// Occlusion uniforms
g_scale = 1.0f;
g_bias = 1.0f;
g_sample_rad = 1.0f;
g_intensity = 1.0f;
// Bind the first gpu::Pipeline we need - for calculating occlusion buffer
batch.setPipeline(getOcclusionPipeline());
batch._glUniform1f(_gScaleLoc, g_scale);
batch._glUniform1f(_gBiasLoc, g_bias);
batch._glUniform1f(_gSampleRadiusLoc, g_sample_rad);
batch._glUniform1f(_gIntensityLoc, g_intensity);
batch._glUniform1f(_bufferWidthLoc, DependencyManager::get<FramebufferCache>()->getFrameBufferSize().width());
batch._glUniform1f(_bufferHeightLoc, DependencyManager::get<FramebufferCache>()->getFrameBufferSize().height());
glm::vec4 color(0.0f, 0.0f, 0.0f, 1.0f);
glm::vec2 bottomLeft(-1.0f, -1.0f);
glm::vec2 topRight(1.0f, 1.0f);
glm::vec2 texCoordTopLeft(0.0f, 0.0f);
glm::vec2 texCoordBottomRight(1.0f, 1.0f);
DependencyManager::get<GeometryCache>()->renderQuad(batch, bottomLeft, topRight, texCoordTopLeft, texCoordBottomRight, color);
// Vertical blur step
getVBlurPipeline();
batch.setResourceTexture(0, _occlusionTexture);
_vBlurBuffer->setRenderBuffer(0, _vBlurTexture);
batch.setFramebuffer(_vBlurBuffer);
// Bind the second gpu::Pipeline we need - for calculating blur buffer
batch.setPipeline(getVBlurPipeline());
DependencyManager::get<GeometryCache>()->renderQuad(batch, bottomLeft, topRight, texCoordTopLeft, texCoordBottomRight, color);
// Horizontal blur step
getHBlurPipeline();
batch.setResourceTexture(0, _vBlurTexture);
_hBlurBuffer->setRenderBuffer(0, _hBlurTexture);
batch.setFramebuffer(_hBlurBuffer);
// Bind the third gpu::Pipeline we need - for calculating blur buffer
batch.setPipeline(getHBlurPipeline());
DependencyManager::get<GeometryCache>()->renderQuad(batch, bottomLeft, topRight, texCoordTopLeft, texCoordBottomRight, color);
// Blend step
getBlendPipeline();
batch.setResourceTexture(0, _hBlurTexture);
batch.setFramebuffer(DependencyManager::get<FramebufferCache>()->getPrimaryFramebuffer());
// Bind the fourth gpu::Pipeline we need - for blending the primary color buffer with blurred occlusion texture
batch.setPipeline(getBlendPipeline());
DependencyManager::get<GeometryCache>()->renderQuad(batch, bottomLeft, topRight, texCoordTopLeft, texCoordBottomRight, color);
// Ready to render
args->_context->render((batch));
}
