J'ai trouvé ce shader sur internet qui se sert de la "META pass"
The Meta pass decouples the albedo and emissive, which Enlighten uses from regular Shader passes.
This allows you to control GI without affecting the Shader used for real-time rendering. The standard Shader contains a Meta pass by default.
...mais c'est réalisé avec ShaderForge, que je n'ai pas!
Ci-joint le code, pour avoir une idée de ce qui se passe (pour moi, malheureusement, c'est du chinois)...et dans l'espoir que cela puisse être adapapté pour un shader non-ShaderForge
Code : Tout sélectionner
Shader "Shader Forge/NewShader" {
Properties {
_Color ("Color", Color) = (1,1,1,1)
_MainTex ("Base Color", 2D) = "white" {}
_Power ("Power", Range(0, 10)) = 1
}
SubShader {
Tags {
"RenderType"="Opaque"
}
Pass {
Name "FORWARD"
Tags {
"LightMode"="ForwardBase"
}
CGPROGRAM
#pragma vertex vert
#pragma fragment frag
#define UNITY_PASS_FORWARDBASE
#define _GLOSSYENV 1
#include "UnityCG.cginc"
#include "UnityPBSLighting.cginc"
#include "UnityStandardBRDF.cginc"
#pragma multi_compile_fwdbase_fullshadows
#pragma multi_compile_fog
#pragma only_renderers d3d9 d3d11 glcore gles
#pragma target 3.0
uniform float4 _Color;
uniform sampler2D _MainTex; uniform float4 _MainTex_ST;
uniform float _Power;
struct VertexInput {
float4 vertex : POSITION;
float3 normal : NORMAL;
float2 texcoord0 : TEXCOORD0;
};
struct VertexOutput {
float4 pos : SV_POSITION;
float2 uv0 : TEXCOORD0;
float4 posWorld : TEXCOORD1;
float3 normalDir : TEXCOORD2;
UNITY_FOG_COORDS(3)
};
VertexOutput vert (VertexInput v) {
VertexOutput o = (VertexOutput)0;
o.uv0 = v.texcoord0;
o.normalDir = UnityObjectToWorldNormal(v.normal);
o.posWorld = mul(unity_ObjectToWorld, v.vertex);
o.pos = mul(UNITY_MATRIX_MVP, v.vertex );
UNITY_TRANSFER_FOG(o,o.pos);
return o;
}
float4 frag(VertexOutput i) : COLOR {
i.normalDir = normalize(i.normalDir);
float3 viewDirection = normalize(_WorldSpaceCameraPos.xyz - i.posWorld.xyz);
float3 normalDirection = i.normalDir;
float3 viewReflectDirection = reflect( -viewDirection, normalDirection );
////// Lighting:
////// Emissive:
float4 _MainTex_var = tex2D(_MainTex,TRANSFORM_TEX(i.uv0, _MainTex));
float3 emissive = ((_MainTex_var.rgb*_Color.rgb)*_Power);
float3 finalColor = emissive;
fixed4 finalRGBA = fixed4(finalColor,1);
UNITY_APPLY_FOG(i.fogCoord, finalRGBA);
return finalRGBA;
}
ENDCG
}
Pass {
Name "Meta"
Tags {
"LightMode"="Meta"
}
Cull Off
CGPROGRAM
#pragma vertex vert
#pragma fragment frag
#define UNITY_PASS_META 1
#define _GLOSSYENV 1
#include "UnityCG.cginc"
#include "UnityPBSLighting.cginc"
#include "UnityStandardBRDF.cginc"
#include "UnityMetaPass.cginc"
#pragma fragmentoption ARB_precision_hint_fastest
#pragma multi_compile_shadowcaster
#pragma multi_compile_fog
#pragma only_renderers d3d9 d3d11 glcore gles
#pragma target 3.0
uniform float4 _Color;
uniform sampler2D _MainTex; uniform float4 _MainTex_ST;
uniform float _Power;
struct VertexInput {
float4 vertex : POSITION;
float2 texcoord0 : TEXCOORD0;
float2 texcoord1 : TEXCOORD1;
float2 texcoord2 : TEXCOORD2;
};
struct VertexOutput {
float4 pos : SV_POSITION;
float2 uv0 : TEXCOORD0;
};
VertexOutput vert (VertexInput v) {
VertexOutput o = (VertexOutput)0;
o.uv0 = v.texcoord0;
o.pos = UnityMetaVertexPosition(v.vertex, v.texcoord1.xy, v.texcoord2.xy, unity_LightmapST, unity_DynamicLightmapST );
return o;
}
float4 frag(VertexOutput i) : SV_Target {
UnityMetaInput o;
UNITY_INITIALIZE_OUTPUT( UnityMetaInput, o );
float4 _MainTex_var = tex2D(_MainTex,TRANSFORM_TEX(i.uv0, _MainTex));
o.Emission = ((_MainTex_var.rgb*_Color.rgb)*_Power);
float3 diffColor = float3(0,0,0);
float specularMonochrome;
float3 specColor;
diffColor = DiffuseAndSpecularFromMetallic( diffColor, 0, specColor, specularMonochrome );
o.Albedo = diffColor;
return UnityMetaFragment( o );
}
ENDCG
}
}
FallBack "Diffuse"
CustomEditor "ShaderForgeMaterialInspector"
}
