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o3de/Gems/Atom/Feature/Common/Code/Source/SkinnedMesh/SkinnedMeshShaderOptionsCac...

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3.6 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
*
*/
#include <SkinnedMesh/SkinnedMeshShaderOptionsCache.h>
#include <Atom/RPI.Public/Shader/Shader.h>
namespace AZ
{
namespace Render
{
void CachedSkinnedMeshShaderOptions::SetShader(Data::Instance<RPI::Shader> shader)
{
m_shader = shader;
// Cache the different possible indices and values so they are efficent to set later
const RPI::ShaderOptionGroupLayout* layout = m_shader->GetAsset()->GetShaderOptionGroupLayout();
m_skinningMethodOptionIndex = layout->FindShaderOptionIndex(AZ::Name("o_skinningMethod"));
m_skinningMethodLinearSkinningValue = layout->FindValue(m_skinningMethodOptionIndex, AZ::Name("SkinningMethod::LinearSkinning"));
m_skinningMethodDualQuaternionValue = layout->FindValue(m_skinningMethodOptionIndex, AZ::Name("SkinningMethod::DualQuaternion"));
m_applyMorphTargetOptionIndex = layout->FindShaderOptionIndex(AZ::Name("o_applyMorphTargets"));
m_applyMorphTargetFalseValue = layout->FindValue(m_applyMorphTargetOptionIndex, AZ::Name("false"));
m_applyMorphTargetTrueValue = layout->FindValue(m_applyMorphTargetOptionIndex, AZ::Name("true"));
m_applyColorMorphTargetOptionIndex = layout->FindShaderOptionIndex(AZ::Name("o_applyColorMorphTargets"));
m_applyColorMorphTargetFalseValue = layout->FindValue(m_applyColorMorphTargetOptionIndex, AZ::Name("false"));
m_applyColorMorphTargetTrueValue = layout->FindValue(m_applyColorMorphTargetOptionIndex, AZ::Name("true"));
SkinnedMeshShaderOptionNotificationBus::Event(this, &SkinnedMeshShaderOptionNotificationBus::Events::OnShaderReinitialized, this);
}
void CachedSkinnedMeshShaderOptions::ConnectToShaderReinitializedEvent(SkinnedMeshShaderOptionNotificationBus::Handler& shaderReinitializedEventHandler)
{
shaderReinitializedEventHandler.BusConnect(this);
}
RPI::ShaderOptionGroup CachedSkinnedMeshShaderOptions::CreateShaderOptionGroup(const SkinnedMeshShaderOptions& shaderOptions) const
{
RPI::ShaderOptionGroup shaderOptionGroup = m_shader->CreateShaderOptionGroup();
switch (shaderOptions.m_skinningMethod)
{
case SkinningMethod::DualQuaternion:
shaderOptionGroup.SetValue(m_skinningMethodOptionIndex, m_skinningMethodDualQuaternionValue);
break;
case SkinningMethod::LinearSkinning:
default:
shaderOptionGroup.SetValue(m_skinningMethodOptionIndex, m_skinningMethodLinearSkinningValue);
}
if (shaderOptions.m_applyMorphTargets)
{
shaderOptionGroup.SetValue(m_applyMorphTargetOptionIndex, m_applyMorphTargetTrueValue);
}
else
{
shaderOptionGroup.SetValue(m_applyMorphTargetOptionIndex, m_applyMorphTargetFalseValue);
}
if (shaderOptions.m_applyColorMorphTargets)
{
shaderOptionGroup.SetValue(m_applyColorMorphTargetOptionIndex, m_applyColorMorphTargetTrueValue);
}
else
{
shaderOptionGroup.SetValue(m_applyColorMorphTargetOptionIndex, m_applyColorMorphTargetFalseValue);
}
shaderOptionGroup.SetUnspecifiedToDefaultValues();
return shaderOptionGroup;
}
} // namespace Render
} // namespace AZ