Add shaders
This commit is contained in:
Williams
@@ -0,0 +1,253 @@
|
||||
Shader "Custom/URP/RoofSlopeProjection_Shadowed_URP2021"
|
||||
{
|
||||
Properties
|
||||
{
|
||||
_BaseMap ("Texture", 2D) = "white" {}
|
||||
_TileScale ("Density", Float) = 1
|
||||
_ShadowMin ("Shadow Min", Range(0,1)) = 0.35
|
||||
}
|
||||
|
||||
SubShader
|
||||
{
|
||||
Tags
|
||||
{
|
||||
"RenderPipeline"="UniversalPipeline"
|
||||
"RenderType"="Opaque"
|
||||
"Queue"="Geometry"
|
||||
}
|
||||
|
||||
// =========================================================
|
||||
// ForwardOnly (works even when the URP Renderer is Deferred)
|
||||
// Receives Main Light shadows (including screen-space in Deferred)
|
||||
// =========================================================
|
||||
Pass
|
||||
{
|
||||
Name "UniversalForwardOnly"
|
||||
Tags { "LightMode"="UniversalForwardOnly" }
|
||||
|
||||
HLSLPROGRAM
|
||||
#pragma vertex vert
|
||||
#pragma fragment frag
|
||||
|
||||
#pragma multi_compile_instancing
|
||||
|
||||
// IMPORTANT for Deferred: include screen-space main light shadows
|
||||
#pragma multi_compile_fragment _ _MAIN_LIGHT_SHADOWS _MAIN_LIGHT_SHADOWS_CASCADE _MAIN_LIGHT_SHADOWS_SCREEN
|
||||
#pragma multi_compile_fragment _ _SHADOWS_SOFT
|
||||
|
||||
#include "Packages/com.unity.render-pipelines.core/ShaderLibrary/Color.hlsl"
|
||||
#include "Packages/com.unity.render-pipelines.core/ShaderLibrary/Texture.hlsl"
|
||||
#include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/Core.hlsl"
|
||||
#include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/Lighting.hlsl"
|
||||
#include "Packages/com.unity.render-pipelines.core/ShaderLibrary/TextureStack.hlsl"
|
||||
#include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/ShaderGraphFunctions.hlsl"
|
||||
#include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/DBuffer.hlsl"
|
||||
#include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/Shadows.hlsl"
|
||||
#include "Packages/com.unity.render-pipelines.universal/Editor/ShaderGraph/Includes/ShaderPass.hlsl"
|
||||
|
||||
TEXTURE2D(_BaseMap);
|
||||
SAMPLER(sampler_BaseMap);
|
||||
|
||||
CBUFFER_START(UnityPerMaterial)
|
||||
float _TileScale;
|
||||
float _ShadowMin;
|
||||
CBUFFER_END
|
||||
|
||||
struct Attributes
|
||||
{
|
||||
float4 positionOS : POSITION;
|
||||
float3 normalOS : NORMAL;
|
||||
UNITY_VERTEX_INPUT_INSTANCE_ID
|
||||
};
|
||||
|
||||
struct Varyings
|
||||
{
|
||||
float4 positionHCS : SV_POSITION;
|
||||
float3 positionWS : TEXCOORD0;
|
||||
float3 normalWS : TEXCOORD1;
|
||||
float4 shadowCoord : TEXCOORD2;
|
||||
UNITY_VERTEX_INPUT_INSTANCE_ID
|
||||
UNITY_VERTEX_OUTPUT_STEREO
|
||||
};
|
||||
|
||||
Varyings vert (Attributes v)
|
||||
{
|
||||
Varyings o;
|
||||
UNITY_SETUP_INSTANCE_ID(v);
|
||||
UNITY_TRANSFER_INSTANCE_ID(v, o);
|
||||
UNITY_INITIALIZE_VERTEX_OUTPUT_STEREO(o);
|
||||
|
||||
VertexPositionInputs posInputs = GetVertexPositionInputs(v.positionOS.xyz);
|
||||
|
||||
o.positionHCS = posInputs.positionCS;
|
||||
o.positionWS = posInputs.positionWS;
|
||||
o.normalWS = normalize(TransformObjectToWorldNormal(v.normalOS));
|
||||
|
||||
// Works for both shadowmap and screen-space shadows
|
||||
o.shadowCoord = GetShadowCoord(posInputs);
|
||||
|
||||
return o;
|
||||
}
|
||||
|
||||
half4 frag (Varyings i) : SV_Target
|
||||
{
|
||||
UNITY_SETUP_INSTANCE_ID(i);
|
||||
|
||||
float3 n = normalize(i.normalWS);
|
||||
|
||||
// Roof slope projection (your logic)
|
||||
float3 worldDown = float3(0, -1, 0);
|
||||
float3 slopeDir = normalize(worldDown - n * dot(worldDown, n));
|
||||
float3 sideDir = normalize(cross(slopeDir, n));
|
||||
|
||||
float2 uv;
|
||||
uv.x = dot(i.positionWS, sideDir);
|
||||
uv.y = -dot(i.positionWS, slopeDir);
|
||||
uv *= _TileScale;
|
||||
|
||||
half3 albedo = SAMPLE_TEXTURE2D(_BaseMap, sampler_BaseMap, uv).rgb;
|
||||
|
||||
// Reliable main-light shadow attenuation (forward + deferred screen-space)
|
||||
float shadowAtten = MainLightRealtimeShadow(i.shadowCoord);
|
||||
|
||||
// Prevent pitch-black shadows
|
||||
shadowAtten = lerp(_ShadowMin, 1.0, shadowAtten);
|
||||
albedo *= shadowAtten;
|
||||
|
||||
return half4(albedo, 1.0);
|
||||
}
|
||||
ENDHLSL
|
||||
}
|
||||
|
||||
// =========================================================
|
||||
// DepthNormalsOnly (for SSAO / effects needing normals in Deferred)
|
||||
// =========================================================
|
||||
Pass
|
||||
{
|
||||
Name "DepthNormalsOnly"
|
||||
Tags { "LightMode"="DepthNormalsOnly" }
|
||||
|
||||
ZWrite On
|
||||
ZTest LEqual
|
||||
|
||||
HLSLPROGRAM
|
||||
#pragma vertex vertDN
|
||||
#pragma fragment fragDN
|
||||
#pragma multi_compile_instancing
|
||||
|
||||
#include "Packages/com.unity.render-pipelines.core/ShaderLibrary/Color.hlsl"
|
||||
#include "Packages/com.unity.render-pipelines.core/ShaderLibrary/Texture.hlsl"
|
||||
#include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/Core.hlsl"
|
||||
#include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/Lighting.hlsl"
|
||||
#include "Packages/com.unity.render-pipelines.core/ShaderLibrary/TextureStack.hlsl"
|
||||
#include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/ShaderGraphFunctions.hlsl"
|
||||
#include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/DBuffer.hlsl"
|
||||
#include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/Shadows.hlsl"
|
||||
#include "Packages/com.unity.render-pipelines.universal/Editor/ShaderGraph/Includes/ShaderPass.hlsl"
|
||||
|
||||
struct Attributes
|
||||
{
|
||||
float4 positionOS : POSITION;
|
||||
float3 normalOS : NORMAL;
|
||||
UNITY_VERTEX_INPUT_INSTANCE_ID
|
||||
};
|
||||
|
||||
struct Varyings
|
||||
{
|
||||
float4 positionHCS : SV_POSITION;
|
||||
float3 normalWS : TEXCOORD0;
|
||||
UNITY_VERTEX_INPUT_INSTANCE_ID
|
||||
UNITY_VERTEX_OUTPUT_STEREO
|
||||
};
|
||||
|
||||
Varyings vertDN (Attributes v)
|
||||
{
|
||||
Varyings o;
|
||||
UNITY_SETUP_INSTANCE_ID(v);
|
||||
UNITY_TRANSFER_INSTANCE_ID(v, o);
|
||||
UNITY_INITIALIZE_VERTEX_OUTPUT_STEREO(o);
|
||||
|
||||
VertexPositionInputs pos = GetVertexPositionInputs(v.positionOS.xyz);
|
||||
o.positionHCS = pos.positionCS;
|
||||
o.normalWS = normalize(TransformObjectToWorldNormal(v.normalOS));
|
||||
return o;
|
||||
}
|
||||
|
||||
half4 fragDN (Varyings i) : SV_Target
|
||||
{
|
||||
UNITY_SETUP_INSTANCE_ID(i);
|
||||
return half4(PackNormalOctRectEncode(normalize(i.normalWS)).rg, 0, 0);
|
||||
}
|
||||
ENDHLSL
|
||||
}
|
||||
|
||||
// =========================================================
|
||||
// ShadowCaster (casts shadows)
|
||||
// =========================================================
|
||||
Pass
|
||||
{
|
||||
Name "ShadowCaster"
|
||||
Tags { "LightMode"="ShadowCaster" }
|
||||
|
||||
ZWrite On
|
||||
ZTest LEqual
|
||||
ColorMask 0
|
||||
|
||||
HLSLPROGRAM
|
||||
#pragma vertex vertShadow
|
||||
#pragma fragment fragShadow
|
||||
#pragma multi_compile_instancing
|
||||
|
||||
#include "Packages/com.unity.render-pipelines.core/ShaderLibrary/Color.hlsl"
|
||||
#include "Packages/com.unity.render-pipelines.core/ShaderLibrary/Texture.hlsl"
|
||||
#include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/Core.hlsl"
|
||||
#include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/Lighting.hlsl"
|
||||
#include "Packages/com.unity.render-pipelines.core/ShaderLibrary/TextureStack.hlsl"
|
||||
#include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/ShaderGraphFunctions.hlsl"
|
||||
#include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/DBuffer.hlsl"
|
||||
#include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/Shadows.hlsl"
|
||||
#include "Packages/com.unity.render-pipelines.universal/Editor/ShaderGraph/Includes/ShaderPass.hlsl"
|
||||
|
||||
struct Attributes
|
||||
{
|
||||
float4 positionOS : POSITION;
|
||||
};
|
||||
|
||||
struct Varyings
|
||||
{
|
||||
float4 positionHCS : SV_POSITION;
|
||||
float4 shadowCoords : TEXCOORD3;
|
||||
};
|
||||
|
||||
Varyings vertShadow (Attributes IN)
|
||||
{
|
||||
Varyings OUT;
|
||||
|
||||
OUT.positionHCS = TransformObjectToHClip(IN.positionOS.xyz);
|
||||
|
||||
// Get the VertexPositionInputs for the vertex position
|
||||
VertexPositionInputs positions = GetVertexPositionInputs(IN.positionOS.xyz);
|
||||
|
||||
// Convert the vertex position to a position on the shadow map
|
||||
float4 shadowCoordinates = GetShadowCoord(positions);
|
||||
|
||||
// Pass the shadow coordinates to the fragment shader
|
||||
OUT.shadowCoords = shadowCoordinates;
|
||||
|
||||
return OUT;
|
||||
}
|
||||
|
||||
half4 fragShadow (Varyings IN) : SV_Target
|
||||
{
|
||||
// Get the value from the shadow map at the shadow coordinates
|
||||
half shadowAmount = MainLightRealtimeShadow(IN.shadowCoords);
|
||||
|
||||
// Set the fragment color to the shadow value
|
||||
return shadowAmount;
|
||||
}
|
||||
ENDHLSL
|
||||
}
|
||||
}
|
||||
|
||||
FallBack Off
|
||||
}
|
||||
Reference in New Issue
Block a user