koobas.hobune.stream
Add fog to vertex shader
I've been trying to modify a shader to be effected by Unity's exponential fog. I'm not really verse in shader code, and I've been searching through previous answers. I think it has something with adding the " #pragma multi_compile_fog" and then adding the values within the shader itself, but I've been getting no where or a bunch of error, so I figure I could ask.
Here is the code:
Shader "Custom/Outline Fill" {
Properties {
[Enum(UnityEngine.Rendering.CompareFunction)] _ZTest("ZTest", Float) = 0
_OutlineColor("Outline Color", Color) = (1, 1, 1, 1)
_OutlineWidth("Outline Width", Range(0, 10)) = 2
}
SubShader {
Tags {
"Queue" = "Transparent+110"
"RenderType" = "Transparent"
"DisableBatching" = "True"
}
Pass {
Name "Fill"
Cull Off
ZTest [_ZTest]
ZWrite Off
Blend SrcAlpha OneMinusSrcAlpha
ColorMask RGB
Stencil {
Ref 1
Comp NotEqual
}
CGPROGRAM
#include "UnityCG.cginc"
#pragma vertex vert
#pragma fragment frag
#pragma multi_compile_fog
struct appdata {
float4 vertex : POSITION;
float3 normal : NORMAL;
float3 smoothNormal : TEXCOORD3;
UNITY_VERTEX_INPUT_INSTANCE_ID
};
struct v2f {
float4 position : SV_POSITION;
fixed4 color : COLOR;
UNITY_VERTEX_OUTPUT_STEREO
};
uniform fixed4 _OutlineColor;
uniform float _OutlineWidth;
v2f vert(appdata input) {
v2f output;
UNITY_SETUP_INSTANCE_ID(input);
UNITY_INITIALIZE_VERTEX_OUTPUT_STEREO(output);
float3 normal = any(input.smoothNormal) ? input.smoothNormal : input.normal;
float3 viewPosition = UnityObjectToViewPos(input.vertex);
float3 viewNormal = normalize(mul((float3x3)UNITY_MATRIX_IT_MV, normal));
output.position = UnityViewToClipPos(viewPosition + viewNormal * -viewPosition.z * _OutlineWidth / 1000.0);
output.color = _OutlineColor;
return output;
}
fixed4 frag(v2f input) : SV_Target {
return input.color;
}
ENDCG
}
}
}
