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Question by equalsequals · Dec 16, 2013 at 08:17 PM · shadershaderlab

Fog Range Syntax

I'm having trouble finding how Unity wants the Range parameter of its fixed-function fog formatted.

To clarify, I am looking for the Shader Lab syntax, as shown in my example snippets below.

I've tried things like:

Fog{Mode Linear Color[_FogColor] Range[0.0,1000.0]}

Fog{Mode Linear Color[_FogColor] Range(0.0,1000.0])}

Fog{Mode Linear Color[_FogColor] Range{0.0,1000.0}}

Fog{Mode Linear Color[_FogColor] Range 0.0,1000.0 }

This has been all to no avail and I can't find any information anywhere via search engine.

I'm beginning to think this doesn't actually exist/work at all.

Cheers

==

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Answer by tanoshimi · Dec 16, 2013 at 10:03 PM

The bottom syntax works for me. Just created a test shader as follows and I can clearly see the effect when I vary the range values:

 Shader "Custom/TestFog" {
     Properties {
         _MainTex ("Base (RGB)", 2D) = "white" {}
     }
     SubShader {
         Tags { "RenderType"="Opaque" }
         Fog { Mode Linear Color (1.0,0,0,0) Range 0.0,10.0}
         LOD 200
         
         CGPROGRAM
         #pragma surface surf Lambert
 
         sampler2D _MainTex;
 
         struct Input {
             float2 uv_MainTex;
         };
 
         void surf (Input IN, inout SurfaceOutput o) {
             half4 c = tex2D (_MainTex, IN.uv_MainTex);
             o.Albedo = c.rgb;
             o.Alpha = c.a;
         }
         ENDCG
     } 
     FallBack "Diffuse"
 }
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avatar image equalsequals · Dec 16, 2013 at 10:13 PM 0
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Thank you. It appears that if you wish to reference a property there the values must be encapsulated by [].

 Fog { $$anonymous$$ode Linear Color[_FogColor] Range [_$$anonymous$$in],[_$$anonymous$$ax]}

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