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o3de/Gems/AtomTressFX/Code/Passes/HairShortCutGeometryShading...

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2.5 KiB
C++

/*
* Copyright (c) Contributors to the Open 3D Engine Project.
* For complete copyright and license terms please see the LICENSE at the root of this distribution.
*
* SPDX-License-Identifier: Apache-2.0 OR MIT
*
*/
#pragma once
#include <Passes/HairGeometryRasterPass.h>
#include <Rendering/HairGlobalSettings.h>
namespace AZ
{
namespace RHI
{
struct DrawItem;
}
namespace Render
{
namespace Hair
{
//! This geometry pass uses the following Srgs:
//! - PerPassSrg shared by all hair passes for the shared dynamic buffer
//! - PerMaterialSrg - used solely by this pass to alter the vertices and apply the visual
//! hair properties to each fragment.
//! - HairDynamicDataSrg (PerObjectSrg) - shared buffers views for this hair object only.
//! - PerViewSrg and PerSceneSrg - as per the data from Atom.
class HairShortCutGeometryShadingPass
: public HairGeometryRasterPass
{
AZ_RPI_PASS(HairShortCutGeometryShadingPass);
public:
AZ_RTTI(HairShortCutGeometryShadingPass, "{11BA673D-0788-4B25-978D-9737BF4E48FE}", HairGeometryRasterPass);
AZ_CLASS_ALLOCATOR(HairShortCutGeometryShadingPass, SystemAllocator, 0);
static RPI::Ptr<HairShortCutGeometryShadingPass> Create(const RPI::PassDescriptor& descriptor);
void CompileResources(const RHI::FrameGraphCompileContext& context) override;
protected:
AZ::Name o_enableShadows;
AZ::Name o_enableDirectionalLights;
AZ::Name o_enablePunctualLights;
AZ::Name o_enableAreaLights;
AZ::Name o_enableIBL;
AZ::Name o_hairLightingModel;
AZ::Name o_enableMarschner_R;
AZ::Name o_enableMarschner_TRT;
AZ::Name o_enableMarschner_TT;
AZ::Name o_enableLongtitudeCoeff;
AZ::Name o_enableAzimuthCoeff;
explicit HairShortCutGeometryShadingPass(const RPI::PassDescriptor& descriptor);
void UpdateGlobalShaderOptions();
// Pass behavior overrides
void BuildInternal() override;
HairGlobalSettings m_hairGlobalSettings;
AZ::RPI::ShaderVariantKey m_shaderOptions;
};
} // namespace Hair
} // namespace Render
} // namespace AZ