56 lines
1.4 KiB
HLSL
56 lines
1.4 KiB
HLSL
#ifndef UNIVERSAL_SHADOW_CASTER_PASS_INCLUDED
|
|
#define UNIVERSAL_SHADOW_CASTER_PASS_INCLUDED
|
|
|
|
#include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/Core.hlsl"
|
|
#include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/Shadows.hlsl"
|
|
|
|
float3 _LightDirection;
|
|
|
|
struct Attributes
|
|
{
|
|
float4 positionOS : POSITION;
|
|
float3 normalOS : NORMAL;
|
|
float2 texcoord : TEXCOORD0;
|
|
UNITY_VERTEX_INPUT_INSTANCE_ID
|
|
};
|
|
|
|
struct Varyings
|
|
{
|
|
float2 uv : TEXCOORD0;
|
|
float4 positionCS : SV_POSITION;
|
|
};
|
|
|
|
float4 GetShadowPositionHClip(Attributes input)
|
|
{
|
|
float3 positionWS = TransformObjectToWorld(input.positionOS.xyz);
|
|
float3 normalWS = TransformObjectToWorldNormal(input.normalOS);
|
|
|
|
float4 positionCS = TransformWorldToHClip(ApplyShadowBias(positionWS, normalWS, _LightDirection));
|
|
|
|
#if UNITY_REVERSED_Z
|
|
positionCS.z = min(positionCS.z, positionCS.w * UNITY_NEAR_CLIP_VALUE);
|
|
#else
|
|
positionCS.z = max(positionCS.z, positionCS.w * UNITY_NEAR_CLIP_VALUE);
|
|
#endif
|
|
|
|
return positionCS;
|
|
}
|
|
|
|
Varyings ShadowPassVertex(Attributes input)
|
|
{
|
|
Varyings output;
|
|
UNITY_SETUP_INSTANCE_ID(input);
|
|
|
|
output.uv = TRANSFORM_TEX(input.texcoord, _BaseMap);
|
|
output.positionCS = GetShadowPositionHClip(input);
|
|
return output;
|
|
}
|
|
|
|
half4 ShadowPassFragment(Varyings input) : SV_TARGET
|
|
{
|
|
Alpha(SampleAlbedoAlpha(input.uv, TEXTURE2D_ARGS(_BaseMap, sampler_BaseMap)).a, _BaseColor, _Cutoff);
|
|
return 0;
|
|
}
|
|
|
|
#endif
|