Added DiffuseGlobalIlluminationFeatureProcessor and moved the DiffuseProbeGrid files to the DiffuseGlobalIllumination directory
Doug McDiarmid
5 years ago
parent
92130b4ac7
commit
fefa46dd6a
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/*
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* All or portions of this file Copyright (c) Amazon.com, Inc. or its affiliates or
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* its licensors.
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*
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* For complete copyright and license terms please see the LICENSE at the root of this
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* distribution (the "License"). All use of this software is governed by the License,
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* or, if provided, by the license below or the license accompanying this file. Do not
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* remove or modify any license notices. This file is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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*
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*/
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#pragma once
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#include <AzCore/base.h>
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#include <Atom/RPI.Public/FeatureProcessor.h>
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namespace AZ
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{
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namespace Render
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{
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enum class DiffuseGlobalIlluminationQualityLevel : uint8_t
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{
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Low,
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Medium,
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High
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};
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//! This class provides general features and configuration for the diffuse global illumination environment,
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//! which consists of DiffuseProbeGrids and the diffuse Global IBL cubemap.
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class DiffuseGlobalIlluminationFeatureProcessorInterface
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: public RPI::FeatureProcessor
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{
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public:
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AZ_RTTI(AZ::Render::DiffuseProbeGridFeatureProcessorInterface, "{BD8CA35A-47C3-4FD8-932B-18495EF07527}");
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virtual void SetQualityLevel(DiffuseGlobalIlluminationQualityLevel qualityLevel) = 0;
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};
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} // namespace Render
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} // namespace AZ
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/*
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* All or portions of this file Copyright (c) Amazon.com, Inc. or its affiliates or
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* its licensors.
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*
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* For complete copyright and license terms please see the LICENSE at the root of this
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* distribution (the "License"). All use of this software is governed by the License,
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* or, if provided, by the license below or the license accompanying this file. Do not
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* remove or modify any license notices. This file is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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*
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*/
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#include <AzCore/Serialization/SerializeContext.h>
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#include <Atom/RPI.Public/RPIUtils.h>
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#include <Atom/RPI.Public/Scene.h>
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#include <Atom/RPI.Public/Pass/PassFilter.h>
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#include <Atom/RPI.Public/Pass/FullscreenTrianglePass.h>
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#include <DiffuseGlobalIllumination/DiffuseGlobalIlluminationFeatureProcessor.h>
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namespace AZ
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{
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namespace Render
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{
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void DiffuseGlobalIlluminationFeatureProcessor::Reflect(ReflectContext* context)
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{
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if (auto* serializeContext = azrtti_cast<SerializeContext*>(context))
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{
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serializeContext
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->Class<DiffuseGlobalIlluminationFeatureProcessor, FeatureProcessor>()
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->Version(0);
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}
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}
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void DiffuseGlobalIlluminationFeatureProcessor::Activate()
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{
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EnableSceneNotification();
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}
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void DiffuseGlobalIlluminationFeatureProcessor::Deactivate()
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{
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DisableSceneNotification();
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}
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void DiffuseGlobalIlluminationFeatureProcessor::SetQualityLevel(DiffuseGlobalIlluminationQualityLevel qualityLevel)
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{
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m_qualityLevel = qualityLevel;
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UpdatePasses();
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}
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void DiffuseGlobalIlluminationFeatureProcessor::OnRenderPipelinePassesChanged([[maybe_unused]] RPI::RenderPipeline* renderPipeline)
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{
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UpdatePasses();
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}
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void DiffuseGlobalIlluminationFeatureProcessor::OnRenderPipelineAdded([[maybe_unused]] RPI::RenderPipelinePtr pipeline)
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{
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UpdatePasses();
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}
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void DiffuseGlobalIlluminationFeatureProcessor::UpdatePasses()
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{
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float sizeMultiplier = 0.0f;
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switch (m_qualityLevel)
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{
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case DiffuseGlobalIlluminationQualityLevel::Low:
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sizeMultiplier = 0.25f;
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break;
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case DiffuseGlobalIlluminationQualityLevel::Medium:
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sizeMultiplier = 0.5f;
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break;
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case DiffuseGlobalIlluminationQualityLevel::High:
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sizeMultiplier = 1.0f;
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break;
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default:
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AZ_Assert(false, "Unknown DiffuseGlobalIlluminationQualityLevel [%d]", m_qualityLevel);
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break;
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}
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// update the size multiplier on the DiffuseProbeGridDownsamplePass output
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AZStd::vector<Name> downsamplePassHierarchy = { Name("DiffuseGlobalIlluminationPass"), Name("DiffuseProbeGridDownsamplePass") };
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RPI::PassHierarchyFilter downsamplePassFilter(downsamplePassHierarchy);
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const AZStd::vector<RPI::Pass*>& downsamplePasses = RPI::PassSystemInterface::Get()->FindPasses(downsamplePassFilter);
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for (RPI::Pass* pass : downsamplePasses)
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{
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for (uint32_t outputIndex = 0; outputIndex < pass->GetOutputCount(); ++outputIndex)
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{
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RPI::Ptr<RPI::PassAttachment> outputAttachment = pass->GetOutputBinding(outputIndex).m_attachment;
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RPI::PassAttachmentSizeMultipliers& sizeMultipliers = outputAttachment->m_sizeMultipliers;
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sizeMultipliers.m_widthMultiplier = sizeMultiplier;
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sizeMultipliers.m_heightMultiplier = sizeMultiplier;
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}
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// set the output scale on the PassSrg
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RPI::FullscreenTrianglePass* downsamplePass = static_cast<RPI::FullscreenTrianglePass*>(pass);
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auto constantIndex = downsamplePass->GetShaderResourceGroup()->FindShaderInputConstantIndex(Name("m_outputImageScale"));
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downsamplePass->GetShaderResourceGroup()->SetConstant(constantIndex, aznumeric_cast<uint32_t>(1.0f / sizeMultiplier));
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}
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// update the image scale on the DiffuseComposite pass
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AZStd::vector<Name> compositePassHierarchy = { Name("DiffuseGlobalIlluminationPass"), Name("DiffuseCompositePass") };
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RPI::PassHierarchyFilter compositePassFilter(compositePassHierarchy);
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const AZStd::vector<RPI::Pass*>& compositePasses = RPI::PassSystemInterface::Get()->FindPasses(compositePassFilter);
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for (RPI::Pass* pass : compositePasses)
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{
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RPI::FullscreenTrianglePass* compositePass = static_cast<RPI::FullscreenTrianglePass*>(pass);
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auto constantIndex = compositePass->GetShaderResourceGroup()->FindShaderInputConstantIndex(Name("m_imageScale"));
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compositePass->GetShaderResourceGroup()->SetConstant(constantIndex, aznumeric_cast<uint32_t>(1.0f / sizeMultiplier));
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}
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}
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} // namespace Render
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} // namespace AZ
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@ -0,0 +1,52 @@
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/*
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* All or portions of this file Copyright (c) Amazon.com, Inc. or its affiliates or
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* its licensors.
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*
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* For complete copyright and license terms please see the LICENSE at the root of this
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* distribution (the "License"). All use of this software is governed by the License,
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* or, if provided, by the license below or the license accompanying this file. Do not
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* remove or modify any license notices. This file is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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*
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*/
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#pragma once
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#include <Atom/Feature/DiffuseGlobalIllumination/DiffuseGlobalIlluminationFeatureProcessorInterface.h>
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namespace AZ
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{
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namespace Render
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{
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//! This class provides general features and configuration for the diffuse global illumination environment,
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//! which consists of DiffuseProbeGrids and the diffuse Global IBL cubemap.
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class DiffuseGlobalIlluminationFeatureProcessor final
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: public DiffuseGlobalIlluminationFeatureProcessorInterface
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{
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public:
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AZ_RTTI(AZ::Render::DiffuseGlobalIlluminationFeatureProcessor, "{14F7DF46-AA2C-49EF-8A2C-0A7CB7390BB7}", DiffuseGlobalIlluminationFeatureProcessorInterface);
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static void Reflect(AZ::ReflectContext* context);
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DiffuseGlobalIlluminationFeatureProcessor() = default;
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virtual ~DiffuseGlobalIlluminationFeatureProcessor() = default;
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void Activate() override;
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void Deactivate() override;
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// DiffuseGlobalIlluminationFeatureProcessorInterface overrides
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void SetQualityLevel(DiffuseGlobalIlluminationQualityLevel qualityLevel) override;
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private:
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AZ_DISABLE_COPY_MOVE(DiffuseGlobalIlluminationFeatureProcessor);
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// RPI::SceneNotificationBus::Handler overrides
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void OnRenderPipelinePassesChanged(RPI::RenderPipeline* renderPipeline) override;
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void OnRenderPipelineAdded(RPI::RenderPipelinePtr pipeline) override;
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void UpdatePasses();
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DiffuseGlobalIlluminationQualityLevel m_qualityLevel = DiffuseGlobalIlluminationQualityLevel::Low;
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};
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} // namespace Render
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} // namespace AZ
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