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61 lines
2.3 KiB
C++
61 lines
2.3 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 <AzCore/Memory/SystemAllocator.h>
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#include <Atom/RPI.Public/Pass/ParentPass.h>
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#include <Atom/RPI.Public/Buffer/Buffer.h>
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#include <PostProcessing/DepthOfFieldWriteFocusDepthFromGpuPass.h>
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#include <PostProcessing/DepthOfFieldCopyFocusDepthToCpuPass.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 DepthOfFieldSettings;
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//! This pass is used to get the depth value for the specified screen coordinates.
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class DepthOfFieldReadBackFocusDepthPass final
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: public RPI::ParentPass
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{
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public:
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AZ_RTTI(AZ::Render::DepthOfFieldReadBackFocusDepthPass, "{8738691C-1D8C-4F96-8B4F-2152A4550470}", AZ::RPI::ParentPass);
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AZ_CLASS_ALLOCATOR(DepthOfFieldReadBackFocusDepthPass, SystemAllocator, 0);
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static RPI::Ptr<DepthOfFieldReadBackFocusDepthPass> Create(const RPI::PassDescriptor& descriptor);
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DepthOfFieldReadBackFocusDepthPass(const RPI::PassDescriptor& descriptor);
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~DepthOfFieldReadBackFocusDepthPass();
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// Set pass parameter interfaces...
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void SetScreenPosition(const AZ::Vector2& screenPosition);
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float GetFocusDepth();
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float GetNormalizedFocusDistanceForAutoFocus() const;
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protected:
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// Pass behavior overrides...
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void CreateChildPassesInternal() override;
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void FrameBeginInternal(FramePrepareParams params) override;
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private:
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void UpdateAutoFocus(DepthOfFieldSettings& dofSettings);
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// Used to avoid buffer name conflicts when creating multiple DepthOfFieldReadBackFocusDepthPass
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static uint32_t s_bufferInstance;
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AZ::Data::Instance<RPI::Buffer> m_buffer;
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RPI::Ptr<DepthOfFieldWriteFocusDepthFromGpuPass> m_getDepthPass;
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RPI::Ptr<DepthOfFieldCopyFocusDepthToCpuPass> m_readbackPass;
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float m_normalizedFocusDistanceForAutoFocus = 0.0f;
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float m_delayTimer = 0.0f;
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bool m_isMovingFocus = false;
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};
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} // namespace Render
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} // namespace AZ
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