Merge pull request #5760 from aws-lumberyard-dev/Atom/dmcdiar/ATOM-16762
Fix for SSR initialization and visual quality improvementsmonroegm-disable-blank-issue-2
dmcdiarmid-ly
4 years ago
committed by
GitHub
commit
2321afecfb
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/*
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* Copyright (c) Contributors to the Open 3D Engine Project.
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* For complete copyright and license terms please see the LICENSE at the root of this distribution.
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*
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* SPDX-License-Identifier: Apache-2.0 OR MIT
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*
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*/
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#include "ReflectionScreenSpaceTracePass.h"
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#include <Atom/RPI.Public/Pass/PassSystemInterface.h>
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#include <Atom/RPI.Public/Pass/PassFilter.h>
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#include <Atom/RPI.Public/RenderPipeline.h>
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#include <Atom/RPI.Public/Image/ImageSystemInterface.h>
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#include <Atom/RPI.Public/Image/AttachmentImagePool.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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RPI::Ptr<ReflectionScreenSpaceTracePass> ReflectionScreenSpaceTracePass::Create(const RPI::PassDescriptor& descriptor)
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{
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RPI::Ptr<ReflectionScreenSpaceTracePass> pass = aznew ReflectionScreenSpaceTracePass(descriptor);
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return AZStd::move(pass);
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}
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ReflectionScreenSpaceTracePass::ReflectionScreenSpaceTracePass(const RPI::PassDescriptor& descriptor)
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: RPI::FullscreenTrianglePass(descriptor)
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{
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}
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void ReflectionScreenSpaceTracePass::BuildInternal()
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{
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Data::Instance<RPI::AttachmentImagePool> pool = RPI::ImageSystemInterface::Get()->GetSystemAttachmentPool();
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// retrieve the previous frame image attachment from the pass
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AZ_Assert(m_ownedAttachments.size() == 3, "ReflectionScreenSpaceTracePass must have the following attachment images defined: ReflectionImage, DownSampledDepthImage, and PreviousFrameImage");
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RPI::Ptr<RPI::PassAttachment> previousFrameImageAttachment = m_ownedAttachments[2];
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// update the image attachment descriptor to sync up size and format
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previousFrameImageAttachment->Update();
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// change the lifetime since we want it to live between frames
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previousFrameImageAttachment->m_lifetime = RHI::AttachmentLifetimeType::Imported;
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// set the bind flags
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RHI::ImageDescriptor& imageDesc = previousFrameImageAttachment->m_descriptor.m_image;
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imageDesc.m_bindFlags |= RHI::ImageBindFlags::Color | RHI::ImageBindFlags::ShaderReadWrite;
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// create the image attachment
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RHI::ClearValue clearValue = RHI::ClearValue::CreateVector4Float(0, 0, 0, 0);
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m_previousFrameImageAttachment = RPI::AttachmentImage::Create(*pool.get(), imageDesc, Name(previousFrameImageAttachment->m_path.GetCStr()), &clearValue, nullptr);
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previousFrameImageAttachment->m_path = m_previousFrameImageAttachment->GetAttachmentId();
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previousFrameImageAttachment->m_importedResource = m_previousFrameImageAttachment;
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}
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} // namespace RPI
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} // namespace AZ
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@ -0,0 +1,43 @@
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/*
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* Copyright (c) Contributors to the Open 3D Engine Project.
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* For complete copyright and license terms please see the LICENSE at the root of this distribution.
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*
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* SPDX-License-Identifier: Apache-2.0 OR MIT
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*
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*/
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#pragma once
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#include <Atom/RPI.Public/Pass/Pass.h>
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#include <Atom/RPI.Public/Pass/FullscreenTrianglePass.h>
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#include <Atom/RPI.Public/Shader/ShaderResourceGroup.h>
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#include <Atom/RPI.Public/Shader/Shader.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 pass traces screenspace reflections from the previous frame image.
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class ReflectionScreenSpaceTracePass
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: public RPI::FullscreenTrianglePass
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{
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AZ_RPI_PASS(DiffuseProbeGridDownsamplePass);
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public:
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AZ_RTTI(Render::ReflectionScreenSpaceTracePass, "{70FD45E9-8363-4AA1-A514-3C24AC975E53}", FullscreenTrianglePass);
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AZ_CLASS_ALLOCATOR(Render::ReflectionScreenSpaceTracePass, SystemAllocator, 0);
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//! Creates a new pass without a PassTemplate
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static RPI::Ptr<ReflectionScreenSpaceTracePass> Create(const RPI::PassDescriptor& descriptor);
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Data::Instance<RPI::AttachmentImage>& GetPreviousFrameImageAttachment() { return m_previousFrameImageAttachment; }
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private:
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explicit ReflectionScreenSpaceTracePass(const RPI::PassDescriptor& descriptor);
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// Pass behavior overrides...
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virtual void BuildInternal() override;
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Data::Instance<RPI::AttachmentImage> m_previousFrameImageAttachment;
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};
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} // namespace RPI
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} // namespace AZ
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