Fur shader with alpha transparency

MikeF · on 03-15-2012 02:30 PM

So i'm doing some work that would really take advantage of this fur shader http://unifycommunity.com/wiki/index...le=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

MikeF · on 03-15-2012 03:59 PM

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
}
}