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Fur shader with alpha transparency

polycounter lvl 19
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MikeF polycounter lvl 19
So i'm doing some work that would really take advantage of this fur shader http://unifycommunity.com/wiki/index.php?title=Fur_(Unity3)

rite now the alpha controls where the fur emits from the mesh, but on masked areas it just turns black instead of transparent, which is what i need.

i'm not very well versed in unity's shader language so i'm not sure if this is possible, but any suggestions would be most appreciated

Replies

  • MikeF
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    MikeF polycounter lvl 19
    and heres the shader incase you dont care to download it


    Shader "Fur"
    {
    Properties
    {
    _FurLength ("Fur Length", Range (.0002, 1)) = .25
    _MainTex ("Base (RGB)", 2D) = "white" { }
    _Cutoff ("Alpha Cutoff", Range (0, 1)) = .0001
    _EdgeFade ("Edge Fade", Range(0,1)) = 0.4
    _LightDirection0 ("Light Direction 0, Ambient", Vector) = (1,0,0,1)
    _MyLightColor0 ("Light Color 0", Color) = (1,1,1,1)
    _LightDirection1 ("Light Direction 1, Ambient", Vector) = (1,0,0,1)
    _MyLightColor1 ("Light Color 1", Color) = (1,1,1,1)
    }
    Category
    {
    ZWrite Off
    Tags {"Queue" = "Transparent"}
    Blend SrcAlpha OneMinusSrcAlpha
    Alphatest Greater [_Cutoff]
    SubShader
    {



    Pass
    {
    ZWrite On


    CGPROGRAM
    // Upgrade NOTE: excluded shader from OpenGL ES 2.0 because it does not contain a surface program or both vertex and fragment programs.
    #pragma exclude_renderers gles
    #pragma vertex VertexProgram
    #include "FurHelpers.cginc"

    v2f VertexProgram (appdata_base v)
    {
    v2f o;
    FurVertexPass(0, v, _FurLength, o.pos, o.fog, o.color, o.uv);
    return o;
    }
    ENDCG
    SetTexture [_MainTex]
    {
    constantColor(1,1,1,1)
    combine texture * primary double, constant
    }
    }
    Pass
    {
    CGPROGRAM
    // Upgrade NOTE: excluded shader from OpenGL ES 2.0 because it does not contain a surface program or both vertex and fragment programs.
    #pragma exclude_renderers gles
    #pragma vertex VertexProgram
    #include "FurHelpers.cginc"

    v2f VertexProgram (appdata_base v)
    {
    v2f o;
    FurVertexPass(0.05, v, _FurLength, o.pos, o.fog, o.color, o.uv);
    return o;
    }
    ENDCG
    SetTexture [_MainTex]
    {
    combine texture * primary double, texture * primary
    }
    }
    Pass
    {
    CGPROGRAM
    // Upgrade NOTE: excluded shader from OpenGL ES 2.0 because it does not contain a surface program or both vertex and fragment programs.
    #pragma exclude_renderers gles
    #pragma vertex VertexProgram
    #include "FurHelpers.cginc"

    v2f VertexProgram (appdata_base v)
    {
    v2f o;
    FurVertexPass(0.1, v, _FurLength, o.pos, o.fog, o.color, o.uv);
    return o;
    }
    ENDCG
    SetTexture [_MainTex]
    {
    combine texture * primary double, texture * primary
    }
    }
    Pass
    {
    CGPROGRAM
    // Upgrade NOTE: excluded shader from OpenGL ES 2.0 because it does not contain a surface program or both vertex and fragment programs.
    #pragma exclude_renderers gles
    #pragma vertex VertexProgram
    #include "FurHelpers.cginc"

    v2f VertexProgram (appdata_base v)
    {
    v2f o;
    FurVertexPass(0.15, v, _FurLength, o.pos, o.fog, o.color, o.uv);
    return o;
    }
    ENDCG
    SetTexture [_MainTex]
    {
    combine texture * primary double, texture * primary
    }
    }
    Pass
    {
    CGPROGRAM
    // Upgrade NOTE: excluded shader from OpenGL ES 2.0 because it does not contain a surface program or both vertex and fragment programs.
    #pragma exclude_renderers gles
    #pragma vertex VertexProgram
    #include "FurHelpers.cginc"

    v2f VertexProgram (appdata_base v)
    {
    v2f o;
    FurVertexPass(0.2, v, _FurLength, o.pos, o.fog, o.color, o.uv);
    return o;
    }
    ENDCG
    SetTexture [_MainTex]
    {
    combine texture * primary double, texture * primary
    }
    }
    Pass
    {
    CGPROGRAM
    // Upgrade NOTE: excluded shader from OpenGL ES 2.0 because it does not contain a surface program or both vertex and fragment programs.
    #pragma exclude_renderers gles
    #pragma vertex VertexProgram
    #include "FurHelpers.cginc"

    v2f VertexProgram (appdata_base v)
    {
    v2f o;
    FurVertexPass(0.25, v, _FurLength, o.pos, o.fog, o.color, o.uv);
    return o;
    }
    ENDCG
    SetTexture [_MainTex]
    {
    combine texture * primary double, texture * primary
    }
    }
    Pass
    {
    CGPROGRAM
    // Upgrade NOTE: excluded shader from OpenGL ES 2.0 because it does not contain a surface program or both vertex and fragment programs.
    #pragma exclude_renderers gles
    #pragma vertex VertexProgram
    #include "FurHelpers.cginc"

    v2f VertexProgram (appdata_base v)
    {
    v2f o;
    FurVertexPass(0.3, v, _FurLength, o.pos, o.fog, o.color, o.uv);
    return o;
    }
    ENDCG
    SetTexture [_MainTex]
    {
    combine texture * primary double, texture * primary
    }
    }
    Pass
    {
    CGPROGRAM
    // Upgrade NOTE: excluded shader from OpenGL ES 2.0 because it does not contain a surface program or both vertex and fragment programs.
    #pragma exclude_renderers gles
    #pragma vertex VertexProgram
    #include "FurHelpers.cginc"

    v2f VertexProgram (appdata_base v)
    {
    v2f o;
    FurVertexPass(0.35, v, _FurLength, o.pos, o.fog, o.color, o.uv);
    return o;
    }
    ENDCG
    SetTexture [_MainTex]
    {
    combine texture * primary double, texture * primary
    }
    }
    Pass
    {
    CGPROGRAM
    // Upgrade NOTE: excluded shader from OpenGL ES 2.0 because it does not contain a surface program or both vertex and fragment programs.
    #pragma exclude_renderers gles
    #pragma vertex VertexProgram
    #include "FurHelpers.cginc"

    v2f VertexProgram (appdata_base v)
    {
    v2f o;
    FurVertexPass(0.4, v, _FurLength, o.pos, o.fog, o.color, o.uv);
    return o;
    }
    ENDCG
    SetTexture [_MainTex]
    {
    combine texture * primary double, texture * primary
    }
    }
    Pass
    {
    CGPROGRAM
    // Upgrade NOTE: excluded shader from OpenGL ES 2.0 because it does not contain a surface program or both vertex and fragment programs.
    #pragma exclude_renderers gles
    #pragma vertex VertexProgram
    #include "FurHelpers.cginc"

    v2f VertexProgram (appdata_base v)
    {
    v2f o;
    FurVertexPass(0.45, v, _FurLength, o.pos, o.fog, o.color, o.uv);
    return o;
    }
    ENDCG
    SetTexture [_MainTex]
    {
    combine texture * primary double, texture * primary
    }
    }
    Pass
    {
    CGPROGRAM
    // Upgrade NOTE: excluded shader from OpenGL ES 2.0 because it does not contain a surface program or both vertex and fragment programs.
    #pragma exclude_renderers gles
    #pragma vertex VertexProgram
    #include "FurHelpers.cginc"

    v2f VertexProgram (appdata_base v)
    {
    v2f o;
    FurVertexPass(0.5, v, _FurLength, o.pos, o.fog, o.color, o.uv);
    return o;
    }
    ENDCG
    SetTexture [_MainTex]
    {
    combine texture * primary double, texture * primary
    }
    }
    Pass
    {
    CGPROGRAM
    // Upgrade NOTE: excluded shader from OpenGL ES 2.0 because it does not contain a surface program or both vertex and fragment programs.
    #pragma exclude_renderers gles
    #pragma vertex VertexProgram
    #include "FurHelpers.cginc"

    v2f VertexProgram (appdata_base v)
    {
    v2f o;
    FurVertexPass(0.55, v, _FurLength, o.pos, o.fog, o.color, o.uv);
    return o;
    }
    ENDCG
    SetTexture [_MainTex]
    {
    combine texture * primary double, texture * primary
    }
    }
    Pass
    {
    CGPROGRAM
    // Upgrade NOTE: excluded shader from OpenGL ES 2.0 because it does not contain a surface program or both vertex and fragment programs.
    #pragma exclude_renderers gles
    #pragma vertex VertexProgram
    #include "FurHelpers.cginc"

    v2f VertexProgram (appdata_base v)
    {
    v2f o;
    FurVertexPass(0.60, v, _FurLength, o.pos, o.fog, o.color, o.uv);
    return o;
    }
    ENDCG
    SetTexture [_MainTex]
    {
    combine texture * primary double, texture * primary
    }
    }
    Pass
    {
    CGPROGRAM
    // Upgrade NOTE: excluded shader from OpenGL ES 2.0 because it does not contain a surface program or both vertex and fragment programs.
    #pragma exclude_renderers gles
    #pragma vertex VertexProgram
    #include "FurHelpers.cginc"

    v2f VertexProgram (appdata_base v)
    {
    v2f o;
    FurVertexPass(0.65, v, _FurLength, o.pos, o.fog, o.color, o.uv);
    return o;
    }
    ENDCG
    SetTexture [_MainTex]
    {
    combine texture * primary double, texture * primary
    }
    }
    Pass
    {
    CGPROGRAM
    // Upgrade NOTE: excluded shader from OpenGL ES 2.0 because it does not contain a surface program or both vertex and fragment programs.
    #pragma exclude_renderers gles
    #pragma vertex VertexProgram
    #include "FurHelpers.cginc"

    v2f VertexProgram (appdata_base v)
    {
    v2f o;
    FurVertexPass(0.70, v, _FurLength, o.pos, o.fog, o.color, o.uv);
    return o;
    }
    ENDCG
    SetTexture [_MainTex]
    {
    combine texture * primary double, texture * primary
    }
    }
    Pass
    {
    CGPROGRAM
    // Upgrade NOTE: excluded shader from OpenGL ES 2.0 because it does not contain a surface program or both vertex and fragment programs.
    #pragma exclude_renderers gles
    #pragma vertex VertexProgram
    #include "FurHelpers.cginc"

    v2f VertexProgram (appdata_base v)
    {
    v2f o;
    FurVertexPass(0.75, v, _FurLength, o.pos, o.fog, o.color, o.uv);
    return o;
    }
    ENDCG
    SetTexture [_MainTex]
    {
    combine texture * primary double, texture * primary
    }
    }
    Pass
    {
    CGPROGRAM
    // Upgrade NOTE: excluded shader from OpenGL ES 2.0 because it does not contain a surface program or both vertex and fragment programs.
    #pragma exclude_renderers gles
    #pragma vertex VertexProgram
    #include "FurHelpers.cginc"

    v2f VertexProgram (appdata_base v)
    {
    v2f o;
    FurVertexPass(0.8, v, _FurLength, o.pos, o.fog, o.color, o.uv);
    return o;
    }
    ENDCG
    SetTexture [_MainTex]
    {
    combine texture * primary double, texture * primary
    }
    }
    Pass
    {
    CGPROGRAM
    // Upgrade NOTE: excluded shader from OpenGL ES 2.0 because it does not contain a surface program or both vertex and fragment programs.
    #pragma exclude_renderers gles
    #pragma vertex VertexProgram
    #include "FurHelpers.cginc"

    v2f VertexProgram (appdata_base v)
    {
    v2f o;
    FurVertexPass(0.85, v, _FurLength, o.pos, o.fog, o.color, o.uv);
    return o;
    }
    ENDCG
    SetTexture [_MainTex]
    {
    combine texture * primary double, texture * primary
    }
    }
    Pass
    {
    CGPROGRAM
    // Upgrade NOTE: excluded shader from OpenGL ES 2.0 because it does not contain a surface program or both vertex and fragment programs.
    #pragma exclude_renderers gles
    #pragma vertex VertexProgram
    #include "FurHelpers.cginc"

    v2f VertexProgram (appdata_base v)
    {
    v2f o;
    FurVertexPass(0.9, v, _FurLength, o.pos, o.fog, o.color, o.uv);
    return o;
    }
    ENDCG
    SetTexture [_MainTex]
    {
    combine texture * primary double, texture * primary
    }
    }
    Pass
    {
    CGPROGRAM
    // Upgrade NOTE: excluded shader from OpenGL ES 2.0 because it does not contain a surface program or both vertex and fragment programs.
    #pragma exclude_renderers gles
    #pragma vertex VertexProgram
    #include "FurHelpers.cginc"

    v2f VertexProgram (appdata_base v)
    {
    v2f o;
    FurVertexPass(0.95, v, _FurLength, o.pos, o.fog, o.color, o.uv);
    return o;
    }
    ENDCG
    SetTexture [_MainTex]
    {
    combine texture * primary double, texture * primary
    }
    }
    }
    Fallback " VertexLit", 1
    }
    }
  • steviebops
    Did you ever get that transparency working? I would love try it.
  • MikeF
    Offline / Send Message
    MikeF polycounter lvl 19
    sorry man, it was a pretty messy shader to begin with so i abandoned the idea shortly after
  • wodehia
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