Boat Attack使用了Universal RP的许多新图形功能,可以用于探索 Universal RP 的使用方式和技巧。
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#ifndef SHADOW_PASS_VEGETATION_INCLUDED
#define SHADOW_PASS_VEGETATION_INCLUDED
#include "Packages/com.unity.render-pipelines.lightweight/ShaderLibrary/Core.hlsl"
#include "Packages/com.unity.render-pipelines.lightweight/ShaderLibrary/Shadows.hlsl"
float3 _LightDirection;
struct VertexInput
{
float4 positionOS : POSITION;
float3 normalOS : NORMAL;
float2 texcoord : TEXCOORD0;
half3 color : COLOR;
UNITY_VERTEX_INPUT_INSTANCE_ID
};
struct VertexOutput
{
float2 uv : TEXCOORD0;
float4 clipPos : SV_POSITION;
};
float4 GetShadowPositionHClip(VertexInput input)
{
VertexPositionInputs vertexPosition = GetVertexPositionInputs(input.positionOS);
float3 normalWS = TransformObjectToWorldNormal(input.normalOS);
float4 clipPos = TransformWorldToHClip(ApplyShadowBias(vertexPosition.positionWS, normalWS, _LightDirection));
#if UNITY_REVERSED_Z
clipPos.z = min(clipPos.z, clipPos.w * UNITY_NEAR_CLIP_VALUE);
#else
clipPos.z = max(clipPos.z, clipPos.w * UNITY_NEAR_CLIP_VALUE);
#endif
return clipPos;
}
VertexOutput ShadowPassVegetationVertex(VertexInput input)
{
VertexOutput output;
UNITY_SETUP_INSTANCE_ID(input);
#if _VERTEXANIMATION
/////////////////////////////////////vegetation stuff//////////////////////////////////////////////////
float3 objectOrigin = UNITY_ACCESS_INSTANCED_PROP(Props, _Position).xyz;
input.positionOS.xyz = VegetationDeformation(input.positionOS, objectOrigin, input.normalOS, input.color.x, input.color.z, input.color.y);
//////////////////////////////////////////////////////////////////////////////////////////////////////
#endif
output.uv = input.texcoord;
output.clipPos = GetShadowPositionHClip(input);
return output;
}
half4 ShadowPassVegetationFragment(VertexOutput IN) : SV_TARGET
{
half alpha = SampleAlbedoAlpha(IN.uv, TEXTURE2D_PARAM(_MainTex, sampler_MainTex)).a;
clip(alpha - _Cutoff);
return 0;
}
#endif // SHADOW_PASS_VEGETATION_INCLUDED