dmcdiar
a4fe1bc8db
Changed stencil bits to use 0x3 for the IBL Specular pass and 0x80 for the DiffuseGI pass.
94 lines
2.8 KiB
Plaintext
94 lines
2.8 KiB
Plaintext
/*
|
|
* All or portions of this file Copyright (c) Amazon.com, Inc. or its affiliates or
|
|
* its licensors.
|
|
*
|
|
* For complete copyright and license terms please see the LICENSE at the root of this
|
|
* distribution (the "License"). All use of this software is governed by the License,
|
|
* or, if provided, by the license below or the license accompanying this file. Do not
|
|
* remove or modify any license notices. This file is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
*
|
|
*/
|
|
|
|
// Specular IBL reflection pipeline:
|
|
// Stencil -> BlendWeight -> GlobalFullscreen -> RenderOuter -> RenderInner -> Composite
|
|
// -----------
|
|
//
|
|
// This shader writes 100% of the probe IBL to this location, as it is fully covered
|
|
// by the inner probe volume so there is no blending. Note that this shader only considers
|
|
// pixels stenciled to the inner volume.
|
|
|
|
#include <scenesrg.srgi>
|
|
#include <viewsrg.srgi>
|
|
|
|
#include "ReflectionProbeRenderObjectSrg.azsli"
|
|
|
|
ShaderResourceGroup PassSrg : SRG_PerPass
|
|
{
|
|
Texture2DMS<float> m_depth;
|
|
Texture2DMS<float4> m_normal;
|
|
Texture2DMS<float4> m_specularF0;
|
|
Texture2D<float2> m_brdfMap;
|
|
|
|
Sampler LinearSampler
|
|
{
|
|
MinFilter = Linear;
|
|
MagFilter = Linear;
|
|
MipFilter = Linear;
|
|
AddressU = Clamp;
|
|
AddressV = Clamp;
|
|
AddressW = Clamp;
|
|
};
|
|
}
|
|
|
|
#include "ReflectionCommon.azsli"
|
|
#include "ReflectionProbeRenderCommon.azsli"
|
|
|
|
// Vertex Shader
|
|
struct VSInput
|
|
{
|
|
float3 m_position : POSITION;
|
|
};
|
|
|
|
struct VSOutput
|
|
{
|
|
float4 m_position : SV_Position;
|
|
};
|
|
|
|
VSOutput MainVS(VSInput vsInput)
|
|
{
|
|
VSOutput OUT;
|
|
|
|
float3 positionWS = mul(ObjectSrg::GetWorldMatrix(), float4(vsInput.m_position, 1.0)).xyz;
|
|
OUT.m_position = mul(ViewSrg::m_viewProjectionMatrix, float4(positionWS, 1.0));
|
|
|
|
return OUT;
|
|
}
|
|
|
|
// Pixel Shader
|
|
struct PSOutput
|
|
{
|
|
float4 m_color : SV_Target0;
|
|
};
|
|
|
|
PSOutput MainPS(VSOutput IN, in uint sampleIndex : SV_SampleIndex)
|
|
{
|
|
// reconstruct world space position from the depth at this location in screenspace
|
|
// Note: this is the world position of the rendered object covered by the probe volume, not the volume itself
|
|
float3 positionWS = ReconstructWorldPositionFromDepth(IN.m_position.xy, sampleIndex).xyz;
|
|
|
|
// compute specular using the probe cubemap and the roughness, normals, and specularF0 for the surface
|
|
float3 specular = float3(0.0f, 0.0f, 0.0f);
|
|
if (!ComputeProbeSpecular(IN.m_position.xy, positionWS, ObjectSrg::m_innerAabbMin, ObjectSrg::m_innerAabbMax, sampleIndex, specular))
|
|
{
|
|
discard;
|
|
}
|
|
|
|
// apply exposure setting
|
|
specular *= pow(2.0, SceneSrg::m_iblExposure);
|
|
|
|
PSOutput OUT;
|
|
OUT.m_color = float4(specular, 1.0f);
|
|
return OUT;
|
|
}
|