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53 lines
1.7 KiB
C++
53 lines
1.7 KiB
C++
/*
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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/ComputePass.h>
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#include <Atom/Feature/PostProcess/Bloom/BloomConstants.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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class ShaderResourceGroup;
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class BloomDownsamplePass
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: public RPI::ComputePass
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{
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AZ_RPI_PASS(BloomDownsamplePass);
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public:
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AZ_RTTI(BloomDownsamplePass, "{D1CA5F45-70DB-4130-B5FA-147EFB010B1F}", RenderPass);
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AZ_CLASS_ALLOCATOR(BloomDownsamplePass, SystemAllocator, 0);
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virtual ~BloomDownsamplePass() = default;
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//! Creates a BloomDownsamplePass
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static RPI::Ptr<BloomDownsamplePass> Create(const RPI::PassDescriptor& descriptor);
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protected:
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BloomDownsamplePass(const RPI::PassDescriptor& descriptor);
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// Pass Behaviour Overrides...
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void BuildInternal() override;
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void FrameBeginInternal(FramePrepareParams params) override;
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void BuildOutAttachmentBinding();
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AZ::Vector4 CalThresholdConstants();
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// output texture vertical dimension required by compute shader
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AZ::RHI::ShaderInputNameIndex m_sourceImageTexelSizeInputIndex = "m_sourceImageTexelSize";
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AZ::RHI::ShaderInputNameIndex m_thresholdConstantsInputIndex = "m_thresholdConstants";
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float m_threshold = AZ::Render::Bloom::DefaultThreshold;
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float m_knee = AZ::Render::Bloom::DefaultKnee;
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bool m_srgNeedsUpdate = true;
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};
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} // namespace RPI
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} // namespace AZ
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