75 lines
1.8 KiB
Plaintext
75 lines
1.8 KiB
Plaintext
Shader "Hidden/MicroVerse/StampPreview2D"
|
|
{
|
|
Properties
|
|
{
|
|
[NoScaleOffset]_Gradient ("Gradient", 2D) = "white" {}
|
|
[NoScaleOffset]_Stamp ("Stamp Map", 2D) = "black" {}
|
|
}
|
|
SubShader
|
|
{
|
|
Tags { "RenderType"="Opaque" }
|
|
LOD 100
|
|
|
|
Pass
|
|
{
|
|
CGPROGRAM
|
|
#pragma vertex vert
|
|
#pragma fragment frag
|
|
|
|
#include_with_pragmas "UnityCG.cginc"
|
|
|
|
struct appdata
|
|
{
|
|
float4 vertex : POSITION;
|
|
float2 uv : TEXCOORD0;
|
|
};
|
|
|
|
struct v2f
|
|
{
|
|
float2 uv : TEXCOORD0;
|
|
float4 vertex : SV_POSITION;
|
|
};
|
|
|
|
sampler2D _Stamp;
|
|
sampler2D _Gradient;
|
|
float4 _Stamp_TexelSize;
|
|
|
|
|
|
|
|
v2f vert (appdata v)
|
|
{
|
|
v2f o;
|
|
o.vertex = UnityObjectToClipPos(v.vertex);
|
|
o.uv = v.uv;
|
|
return o;
|
|
}
|
|
|
|
fixed4 frag (v2f i) : SV_Target
|
|
{
|
|
half height = tex2D(_Stamp, i.uv).r;
|
|
half4 c = tex2D(_Gradient, float2(height,0));
|
|
|
|
|
|
float2 uvx = i.uv + float2(_Stamp_TexelSize.x, 0.0);
|
|
float2 uvy = i.uv + float2(0.0, _Stamp_TexelSize.y);
|
|
|
|
float x = tex2D(_Stamp, uvx).r;
|
|
float y = tex2D(_Stamp, uvy).r;
|
|
float2 dxy = height - float2(x, y);
|
|
|
|
float scale = 1;
|
|
dxy = dxy * scale / _Stamp_TexelSize.xy;
|
|
float3 normal = normalize(float3( dxy.x, dxy.y, 1.0)).xzy * 0.5 + 0.5;
|
|
normal.xyz = normal.xzy;
|
|
|
|
float lit = dot(normal, normalize(float3(1,1,1)));
|
|
|
|
|
|
return c * lit;
|
|
|
|
}
|
|
ENDCG
|
|
}
|
|
}
|
|
}
|