328 lines
15 KiB
C++
328 lines
15 KiB
C++
#include "LightCullingPass.h"
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#include "Graphics/Graphics.h"
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#include "Scene/Scene.h"
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#include "Scene/Actor/CameraActor.h"
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#include "Scene/Components/CameraComponent.h"
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#include "RenderGraph.h"
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using namespace Seele;
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LightCullingPass::LightCullingPass(Gfx::PGraphics graphics, Gfx::PViewport viewport, PCameraActor camera)
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: RenderPass(graphics, viewport)
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, source(camera->getCameraComponent())
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{
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}
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LightCullingPass::~LightCullingPass()
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{
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}
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MainJob LightCullingPass::beginFrame()
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{
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uint32_t viewportWidth = viewport->getSizeX();
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uint32_t viewportHeight = viewport->getSizeY();
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BulkResourceData uniformUpdate;
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viewParams.viewMatrix = source->getViewMatrix();
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viewParams.projectionMatrix = source->getProjectionMatrix();
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viewParams.cameraPosition = Vector4(source->getCameraPosition(), 0);
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viewParams.inverseProjectionMatrix = glm::inverse(viewParams.projectionMatrix);
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viewParams.screenDimensions = Vector2(static_cast<float>(viewportWidth), static_cast<float>(viewportHeight));
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uniformUpdate.size = sizeof(ViewParameter);
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uniformUpdate.data = (uint8*)&viewParams;
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viewParamsBuffer->updateContents(uniformUpdate);
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const LightEnv& lightEnv = passData.lightEnv;
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uniformUpdate.size = sizeof(DirectionalLight) * MAX_DIRECTIONAL_LIGHTS;
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uniformUpdate.data = (uint8*)&lightEnv.directionalLights;
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directLightBuffer->updateContents(uniformUpdate);
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uniformUpdate.size = sizeof(PointLight) * MAX_POINT_LIGHTS;
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uniformUpdate.data = (uint8*)&lightEnv.pointLights;
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pointLightBuffer->updateContents(uniformUpdate);
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uniformUpdate.size = sizeof(uint32);
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uniformUpdate.data = (uint8*)&lightEnv.numDirectionalLights;
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numDirLightBuffer->updateContents(uniformUpdate);
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uniformUpdate.data = (uint8*)&lightEnv.numPointLights;
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numPointLightBuffer->updateContents(uniformUpdate);
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BulkResourceData counterReset;
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uint32 reset = 0;
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counterReset.data = (uint8*)&reset;
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counterReset.size = sizeof(uint32);
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oLightIndexCounter->updateContents(counterReset);
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tLightIndexCounter->updateContents(counterReset);
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cullingDescriptorLayout->reset();
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lightEnvDescriptorLayout->reset();
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cullingDescriptorSet = cullingDescriptorLayout->allocateDescriptorSet();
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lightEnvDescriptorSet = lightEnvDescriptorLayout->allocateDescriptorSet();
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cullingDescriptorSet->updateBuffer(0, viewParamsBuffer);
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cullingDescriptorSet->updateBuffer(1, dispatchParamsBuffer);
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cullingDescriptorSet->updateBuffer(3, frustumBuffer);
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cullingDescriptorSet->updateBuffer(4, oLightIndexCounter);
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cullingDescriptorSet->updateBuffer(5, tLightIndexCounter);
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cullingDescriptorSet->updateBuffer(6, oLightIndexList);
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cullingDescriptorSet->updateBuffer(7, tLightIndexList);
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cullingDescriptorSet->updateTexture(8, oLightGrid);
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cullingDescriptorSet->updateTexture(9, tLightGrid);
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lightEnvDescriptorSet->updateBuffer(0, directLightBuffer);
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lightEnvDescriptorSet->updateBuffer(1, numDirLightBuffer);
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lightEnvDescriptorSet->updateBuffer(2, pointLightBuffer);
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lightEnvDescriptorSet->updateBuffer(3, numPointLightBuffer);
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lightEnvDescriptorSet->writeChanges();
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//std::cout << "LightCulling beginFrame()" << std::endl;
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co_return;
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}
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MainJob LightCullingPass::render()
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{
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oLightIndexList->pipelineBarrier(
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Gfx::SE_ACCESS_SHADER_READ_BIT, Gfx::SE_PIPELINE_STAGE_FRAGMENT_SHADER_BIT,
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Gfx::SE_ACCESS_SHADER_WRITE_BIT, Gfx::SE_PIPELINE_STAGE_COMPUTE_SHADER_BIT);
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oLightGrid->pipelineBarrier(
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Gfx::SE_ACCESS_SHADER_READ_BIT, Gfx::SE_PIPELINE_STAGE_FRAGMENT_SHADER_BIT,
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Gfx::SE_ACCESS_SHADER_WRITE_BIT, Gfx::SE_PIPELINE_STAGE_COMPUTE_SHADER_BIT);
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depthAttachment->pipelineBarrier(
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Gfx::SE_ACCESS_DEPTH_STENCIL_ATTACHMENT_WRITE_BIT, Gfx::SE_PIPELINE_STAGE_LATE_FRAGMENT_TESTS_BIT,
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Gfx::SE_ACCESS_SHADER_READ_BIT, Gfx::SE_PIPELINE_STAGE_COMPUTE_SHADER_BIT);
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depthAttachment->changeLayout(Gfx::SE_IMAGE_LAYOUT_GENERAL);
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depthAttachment->transferOwnership(Gfx::QueueType::COMPUTE);
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cullingDescriptorSet->updateTexture(2, depthAttachment);
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cullingDescriptorSet->writeChanges();
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Gfx::PComputeCommand computeCommand = graphics->createComputeCommand("CullingCommand");
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computeCommand->bindPipeline(cullingPipeline);
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Array<Gfx::PDescriptorSet> descriptorSets = {cullingDescriptorSet, lightEnvDescriptorSet};
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computeCommand->bindDescriptor(descriptorSets);
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computeCommand->dispatch(dispatchParams.numThreadGroups.x, dispatchParams.numThreadGroups.y, dispatchParams.numThreadGroups.z);
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Array<Gfx::PComputeCommand> commands = {computeCommand};
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graphics->executeCommands(commands);
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depthAttachment->changeLayout(Gfx::SE_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL);
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depthAttachment->transferOwnership(Gfx::QueueType::GRAPHICS);
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//std::cout << "LightCulling render()" << std::endl;
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co_return;
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}
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MainJob LightCullingPass::endFrame()
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{
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//std::cout << "LightCulling endFrame()" << std::endl;
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co_return;
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}
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void LightCullingPass::publishOutputs()
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{
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setupFrustums();
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uint32_t viewportWidth = viewport->getSizeX();
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uint32_t viewportHeight = viewport->getSizeY();
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glm::uvec3 numThreadGroups = glm::ceil(glm::vec3(viewportWidth / (float)BLOCK_SIZE, viewportHeight / (float)BLOCK_SIZE, 1));
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dispatchParams.numThreadGroups = numThreadGroups;
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dispatchParams.numThreads = numThreadGroups * glm::uvec3(BLOCK_SIZE, BLOCK_SIZE, 1);
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BulkResourceData resourceData;
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StructuredBufferCreateInfo structInfo;
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uint32 counterReset = 0;
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resourceData.size = sizeof(uint32);
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resourceData.data = (uint8*)&counterReset;
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resourceData.owner = Gfx::QueueType::COMPUTE;
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structInfo.bDynamic = true;
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structInfo.resourceData = resourceData;
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oLightIndexCounter = graphics->createStructuredBuffer(structInfo);
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tLightIndexCounter = graphics->createStructuredBuffer(structInfo);
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resourceData.data = nullptr;
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resourceData.size = sizeof(uint32_t)
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* dispatchParams.numThreadGroups.x
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* dispatchParams.numThreadGroups.y
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* dispatchParams.numThreadGroups.z * 200;
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structInfo.resourceData = resourceData;
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structInfo.bDynamic = false;
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oLightIndexList = graphics->createStructuredBuffer(structInfo);
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tLightIndexList = graphics->createStructuredBuffer(structInfo);
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resources->registerBufferOutput("LIGHTCULLING_OLIGHTLIST", oLightIndexList);
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resources->registerBufferOutput("LIGHTCULLING_TLIGHTLIST", tLightIndexList);
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resourceData.size = sizeof(DirectionalLight) * MAX_DIRECTIONAL_LIGHTS;
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structInfo.resourceData = resourceData;
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structInfo.bDynamic = true;
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directLightBuffer = graphics->createStructuredBuffer(structInfo);
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resourceData.size = sizeof(PointLight) * MAX_POINT_LIGHTS;
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structInfo.resourceData = resourceData;
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pointLightBuffer = graphics->createStructuredBuffer(structInfo);
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UniformBufferCreateInfo uniformInfo;
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resourceData.size = sizeof(uint32);
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uniformInfo.resourceData = resourceData;
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uniformInfo.bDynamic = true;
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numDirLightBuffer = graphics->createUniformBuffer(uniformInfo);
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uniformInfo.resourceData = resourceData;
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uniformInfo.bDynamic = true;
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numPointLightBuffer = graphics->createUniformBuffer(uniformInfo);
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resources->registerBufferOutput("DIRECTIONAL_LIGHTS", directLightBuffer);
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resources->registerUniformOutput("NUM_DIRECTIONAL_LIGHTS", numDirLightBuffer);
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resources->registerBufferOutput("POINT_LIGHTS", pointLightBuffer);
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resources->registerUniformOutput("NUM_POINT_LIGHTS", numPointLightBuffer);
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TextureCreateInfo textureInfo;
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textureInfo.width = dispatchParams.numThreadGroups.x;
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textureInfo.height = dispatchParams.numThreadGroups.y;
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textureInfo.format = Gfx::SE_FORMAT_R32G32_UINT;
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textureInfo.usage = Gfx::SE_IMAGE_USAGE_STORAGE_BIT;
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oLightGrid = graphics->createTexture2D(textureInfo);
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tLightGrid = graphics->createTexture2D(textureInfo);
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resources->registerTextureOutput("LIGHTCULLING_OLIGHTGRID", oLightGrid);
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resources->registerTextureOutput("LIGHTCULLING_TLIGHTGRID", tLightGrid);
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}
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void LightCullingPass::createRenderPass()
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{
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cullingDescriptorLayout = graphics->createDescriptorLayout("CullingLayout");
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//ViewParams
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cullingDescriptorLayout->addDescriptorBinding(0, Gfx::SE_DESCRIPTOR_TYPE_UNIFORM_BUFFER);
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//Dispatchparams
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cullingDescriptorLayout->addDescriptorBinding(1, Gfx::SE_DESCRIPTOR_TYPE_UNIFORM_BUFFER);
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//DepthTexture
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cullingDescriptorLayout->addDescriptorBinding(2, Gfx::SE_DESCRIPTOR_TYPE_SAMPLED_IMAGE);
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//Frustums
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cullingDescriptorLayout->addDescriptorBinding(3, Gfx::SE_DESCRIPTOR_TYPE_STORAGE_BUFFER);
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//o_lightIndexCounter
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cullingDescriptorLayout->addDescriptorBinding(4, Gfx::SE_DESCRIPTOR_TYPE_STORAGE_BUFFER);
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//t_lightIndexCounter
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cullingDescriptorLayout->addDescriptorBinding(5, Gfx::SE_DESCRIPTOR_TYPE_STORAGE_BUFFER);
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//o_lightIndexList
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cullingDescriptorLayout->addDescriptorBinding(6, Gfx::SE_DESCRIPTOR_TYPE_STORAGE_BUFFER);
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//t_lightIndexList
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cullingDescriptorLayout->addDescriptorBinding(7, Gfx::SE_DESCRIPTOR_TYPE_STORAGE_BUFFER);
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//o_lightGrid
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cullingDescriptorLayout->addDescriptorBinding(8, Gfx::SE_DESCRIPTOR_TYPE_STORAGE_IMAGE);
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//t_lightGrid
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cullingDescriptorLayout->addDescriptorBinding(9, Gfx::SE_DESCRIPTOR_TYPE_STORAGE_IMAGE);
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lightEnvDescriptorLayout = graphics->createDescriptorLayout("LightEnv");
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// Directional Lights
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lightEnvDescriptorLayout->addDescriptorBinding(0, Gfx::SE_DESCRIPTOR_TYPE_STORAGE_BUFFER);
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lightEnvDescriptorLayout->addDescriptorBinding(1, Gfx::SE_DESCRIPTOR_TYPE_UNIFORM_BUFFER);
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// Point Lights
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lightEnvDescriptorLayout->addDescriptorBinding(2, Gfx::SE_DESCRIPTOR_TYPE_STORAGE_BUFFER);
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lightEnvDescriptorLayout->addDescriptorBinding(3, Gfx::SE_DESCRIPTOR_TYPE_UNIFORM_BUFFER);
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cullingLayout = graphics->createPipelineLayout();
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cullingLayout->addDescriptorLayout(0, cullingDescriptorLayout);
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cullingLayout->addDescriptorLayout(1, lightEnvDescriptorLayout);
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cullingLayout->create();
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ShaderCreateInfo createInfo;
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createInfo.name = "Culling";
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std::ifstream codeStream("./shaders/LightCulling.slang", std::ios::ate);
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auto fileSize = codeStream.tellg();
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codeStream.seekg(0);
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Array<char> buffer(static_cast<uint32>(fileSize));
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codeStream.read(buffer.data(), fileSize);
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createInfo.shaderCode.add(std::string(buffer.data()));
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createInfo.entryPoint = "cullLights";
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createInfo.defines["INDEX_VIEW_PARAMS"] = "0";
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createInfo.defines["INDEX_LIGHT_ENV"] = "1";
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createInfo.defines["NUM_MATERIAL_TEXCOORDS"] = "0";
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cullingShader = graphics->createComputeShader(createInfo);
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ComputePipelineCreateInfo pipelineInfo;
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pipelineInfo.computeShader = cullingShader;
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pipelineInfo.pipelineLayout = cullingLayout;
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cullingPipeline = graphics->createComputePipeline(pipelineInfo);
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depthAttachment = resources->requestRenderTarget("DEPTHPREPASS_DEPTH")->getTexture();
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}
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void LightCullingPass::modifyRenderPassMacros(Map<const char*, const char*>&)
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{
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}
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void LightCullingPass::setupFrustums()
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{
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uint32_t viewportWidth = viewport->getSizeX();
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uint32_t viewportHeight = viewport->getSizeY();
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glm::uvec3 numThreads = glm::ceil(glm::vec3(viewportWidth / (float)BLOCK_SIZE, viewportHeight / (float)BLOCK_SIZE, 1));
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glm::uvec3 numThreadGroups = glm::ceil(glm::vec3(numThreads.x / (float)BLOCK_SIZE, numThreads.y / (float)BLOCK_SIZE, 1));
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viewParams.viewMatrix = source->getViewMatrix();
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viewParams.projectionMatrix = source->getProjectionMatrix();
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viewParams.inverseProjectionMatrix = glm::inverse(source->getProjectionMatrix());
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viewParams.screenDimensions = glm::vec2(viewportWidth, viewportHeight);
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viewParams.cameraPosition = Vector4(source->getCameraPosition(), 0);
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dispatchParams.numThreads = numThreads;
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dispatchParams.numThreadGroups = numThreadGroups;
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Gfx::PDescriptorLayout frustumDescriptorLayout = graphics->createDescriptorLayout("FrustumLayout");
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frustumDescriptorLayout->addDescriptorBinding(0, Gfx::SE_DESCRIPTOR_TYPE_UNIFORM_BUFFER);
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frustumDescriptorLayout->addDescriptorBinding(1, Gfx::SE_DESCRIPTOR_TYPE_UNIFORM_BUFFER);
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frustumDescriptorLayout->addDescriptorBinding(2, Gfx::SE_DESCRIPTOR_TYPE_STORAGE_BUFFER);
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frustumLayout = graphics->createPipelineLayout();
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frustumLayout->addDescriptorLayout(0, frustumDescriptorLayout);
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frustumLayout->create();
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ShaderCreateInfo createInfo;
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createInfo.name = "Frustum";
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std::ifstream codeStream("./shaders/ComputeFrustums.slang", std::ios::ate);
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auto fileSize = codeStream.tellg();
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codeStream.seekg(0);
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Array<char> buffer(static_cast<uint32>(fileSize));
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codeStream.read(buffer.data(), fileSize);
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createInfo.shaderCode.add(std::string(buffer.data()));
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createInfo.entryPoint = "computeFrustums";
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createInfo.defines["INDEX_VIEW_PARAMS"] = "0";
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frustumShader = graphics->createComputeShader(createInfo);
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ComputePipelineCreateInfo pipelineInfo;
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pipelineInfo.computeShader = frustumShader;
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pipelineInfo.pipelineLayout = frustumLayout;
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frustumPipeline = graphics->createComputePipeline(pipelineInfo);
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BulkResourceData resourceInfo;
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UniformBufferCreateInfo uniformInfo;
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resourceInfo.size = sizeof(ViewParameter);
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resourceInfo.data = (uint8*)&viewParams;
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resourceInfo.owner = Gfx::QueueType::COMPUTE;
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uniformInfo.resourceData = resourceInfo;
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uniformInfo.bDynamic = false;
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viewParamsBuffer = graphics->createUniformBuffer(uniformInfo);
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resourceInfo.size = sizeof(DispatchParams);
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resourceInfo.data = (uint8*)&dispatchParams;
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uniformInfo.resourceData = resourceInfo;
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uniformInfo.bDynamic = false;
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dispatchParamsBuffer = graphics->createUniformBuffer(uniformInfo);
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StructuredBufferCreateInfo structuredInfo;
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resourceInfo.size = sizeof(Frustum) * numThreads.x * numThreads.y * numThreads.z;
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resourceInfo.data = nullptr;
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structuredInfo.resourceData = resourceInfo;
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structuredInfo.bDynamic = false;
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frustumBuffer = graphics->createStructuredBuffer(structuredInfo);
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frustumDescriptorSet = frustumDescriptorLayout->allocateDescriptorSet();
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frustumDescriptorSet->updateBuffer(0, viewParamsBuffer);
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frustumDescriptorSet->updateBuffer(1, dispatchParamsBuffer);
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frustumDescriptorSet->updateBuffer(2, frustumBuffer);
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frustumDescriptorSet->writeChanges();
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Gfx::PComputeCommand command = graphics->createComputeCommand("FrustumCommand");
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command->bindPipeline(frustumPipeline);
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command->bindDescriptor(frustumDescriptorSet);
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command->dispatch(numThreadGroups.x, numThreadGroups.y, numThreadGroups.z);
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Array<Gfx::PComputeCommand> commands = {command};
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graphics->executeCommands(commands);
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frustumBuffer->pipelineBarrier(Gfx::SE_ACCESS_SHADER_WRITE_BIT, Gfx::SE_PIPELINE_STAGE_COMPUTE_SHADER_BIT,
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Gfx::SE_ACCESS_SHADER_READ_BIT, Gfx::SE_PIPELINE_STAGE_COMPUTE_SHADER_BIT);
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} |