55 lines
1.6 KiB
Plaintext
55 lines
1.6 KiB
Plaintext
Shader "Hidden/TerrainTools/HeightBlit" {
|
|
Properties
|
|
{
|
|
_MainTex ("Texture", any) = "" {}
|
|
}
|
|
SubShader {
|
|
Pass {
|
|
ZTest Always Cull Off ZWrite Off
|
|
|
|
CGPROGRAM
|
|
#pragma vertex vert
|
|
#pragma fragment frag
|
|
#include "UnityCG.cginc"
|
|
|
|
UNITY_DECLARE_SCREENSPACE_TEXTURE(_MainTex);
|
|
uniform float4 _MainTex_ST;
|
|
uniform float _Height_Offset;
|
|
uniform float _Height_Scale;
|
|
|
|
struct appdata_t {
|
|
float4 vertex : POSITION;
|
|
float2 texcoord : TEXCOORD0;
|
|
UNITY_VERTEX_INPUT_INSTANCE_ID
|
|
};
|
|
|
|
struct v2f {
|
|
float4 vertex : SV_POSITION;
|
|
float2 texcoord : TEXCOORD0;
|
|
UNITY_VERTEX_OUTPUT_STEREO
|
|
};
|
|
|
|
v2f vert (appdata_t v)
|
|
{
|
|
v2f o;
|
|
UNITY_SETUP_INSTANCE_ID(v);
|
|
UNITY_INITIALIZE_VERTEX_OUTPUT_STEREO(o);
|
|
o.vertex = UnityObjectToClipPos(v.vertex);
|
|
o.texcoord = TRANSFORM_TEX(v.texcoord.xy, _MainTex);
|
|
return o;
|
|
}
|
|
|
|
float4 frag (v2f i) : SV_Target
|
|
{
|
|
UNITY_SETUP_STEREO_EYE_INDEX_POST_VERTEX(i);
|
|
float height = UnpackHeightmap(UNITY_SAMPLE_SCREENSPACE_TEXTURE(_MainTex, i.texcoord));
|
|
height = height * _Height_Scale + _Height_Offset;
|
|
return PackHeightmap(height);
|
|
}
|
|
ENDCG
|
|
|
|
}
|
|
}
|
|
Fallback Off
|
|
}
|