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Shader "LTCGI/Simple"
{
Properties
{
_MainTex ("Texture", 2D) = "white" {}
_Color ("Color", Color) = (1.0, 1.0, 1.0, 1.0)
_Roughness ("Roughness", Range(0.0, 1.0)) = 0.5
//[ToggleUI] _Debug ("Debug Param, does whatever it wants", float) = 0.0
}
SubShader
{
// "LTCGI" tag defines that any renderer with this material will
// receive data from the LTCGI editor and Udon scripts.
// Can be either "ALWAYS" or the name of a float ("ToggleUI")
// property on which input will depends.
Tags { "RenderType"="Opaque" "LTCGI"="ALWAYS" }
LOD 100
Pass
{
CGPROGRAM
#pragma vertex vert
#pragma fragment frag
#pragma multi_compile_fog
//#define LTCGI_SPECULAR_OFF
#include "UnityCG.cginc"
#include "LTCGI.cginc"
struct v2f
{
float4 uv : TEXCOORD0;
float3 worldPos : TEXCOORD1;
float3 worldNorm : TEXCOORD2;
float4 vertex : SV_POSITION;
};
sampler2D _MainTex;
float4 _MainTex_ST;
float4 _Color;
float _Roughness;
v2f vert (appdata_full v)
{
v2f o;
o.vertex = UnityObjectToClipPos(v.vertex);
o.worldPos = mul(unity_ObjectToWorld, float4(v.vertex.xyz, 1.0)).xyz;
o.worldNorm = mul(unity_ObjectToWorld, float4(v.normal.xyz, 0.0)).xyz;
o.uv.xy = TRANSFORM_TEX(v.texcoord, _MainTex);
o.uv.zw = v.texcoord1;
return o;
}
float3 get_camera_pos() {
float3 worldCam;
worldCam.x = unity_CameraToWorld[0][3];
worldCam.y = unity_CameraToWorld[1][3];
worldCam.z = unity_CameraToWorld[2][3];
return worldCam;
}
static float3 camera_pos = get_camera_pos();
half4 frag (v2f i) : SV_Target
{
//return half4(tex2Dlod(_LTCGI_mat, float4(i.uv, 0, 0)).rgb, 1);
half4 col = tex2D(_MainTex, i.uv) * _Color;
half3 diff = 0;
half3 spec = 0;
LTCGI_Contribution(
i.worldPos,
normalize(i.worldNorm),
normalize(camera_pos - i.worldPos),
_Roughness,
i.uv.zw,
diff,
spec
);
col.rgb *= saturate(diff + 0.1);
col.rgb += spec;
return col;
}
ENDCG
}
}
}
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