How to: Shader with diffuse map + reflection + lightmap

I am a newbie. Is it possible to write a shader to show Diffuse Map + Reflection (cube) + Lightmap or Self Illumination that uses texcoords1 instead of 0

I have models with texture UV in texcoord0 and lightmap UV in texcoord1

Is there a possibility to use Self Illumination shader, but to apply the map in texcoords1?

Also how is it possible to write multipass material.

Thanks in advance for replies!

this is what i have done so far... I am a newbie remember, and have very little exposure in scripting.

Code (csharp):

1. Shader "Lightmap_Refl" {
2.    Properties {
3.     _Color ("Main Color", Color) = (1,1,1,1)
4.     _ReflectColor ("Reflection Color", Color) = (1,1,1,0.5)
5.     _MainTex ("Base (RGB) RefStrength (A)", 2D) = "white" {}
6.     _Cube ("Reflection Cubemap", Cube) = "_Skybox" { TexGen CubeReflect }
7.     _Illum ("Illumin (A)", 2D) = "white" {}
8. }
9. SubShader {
10.  
11.  
12. Name "PradShades"
13.    
14.     Tags { "RenderType"="Opaque" }
15.    
16. CGPROGRAM
17. #pragma surface surf Lambert
18.  
19. sampler2D _MainTex;
20. samplerCUBE _Cube;
21. sampler2D _Illum;
22.  
23. fixed4 _Color;
24. fixed4 _ReflectColor;
25.  
26. struct Input {
27.     float2 uv_MainTex;
28.     float3 worldRefl;
29. };
30.  
31. void surf (Input IN, inout SurfaceOutput o) {
32.     fixed4 tex = tex2D(_MainTex, IN.uv_MainTex);
33.     fixed4 c = tex * _Color;
34.     o.Albedo = c.rgb;
35.    
36.     fixed4 reflcol = texCUBE (_Cube, IN.worldRefl);
37.     reflcol *= tex.a;
38.     o.Emission = reflcol.rgb * _ReflectColor.rgb;
39.     o.Alpha = reflcol.a * _ReflectColor.a;
40.    
41.        
42. }
43. ENDCG
44.  
45.  
46.     }
47.  
48.  
49. }

 

ok! I made some progress today. This shader can have texture + lightmap + reflection!!

Code (csharp):

1. Shader "Megsmap_Refl" {
2.    Properties {
3.     _Color ("Main Color", Color) = (1,1,1,1)
4.     _ReflectColor ("Reflection Color", Color) = (1,1,1,0.5)
5.     _MainTex ("Texture", 2D) = "white" {}
6.     _Cube ("Reflection Cubemap", Cube) = "_Skybox" { TexGen CubeReflect }
7.    
8.     _Illum ("Lightmap", 2D) = "white" { LightmapMode }
9. }
10. SubShader {
11.  
12. Pass {
13.  
14.  
15.    
16.    
17.         BindChannels {
18.                     Bind "Vertex", vertex
19.                     Bind "texcoord", texcoord0
20.                     Bind "texcoord1", texcoord1
21.                         }
22.    
23.     SetTexture [_MainTex] {
24.         constantColor [_Color]
25.         Combine texture * constant
26.        
27.     }
28.     SetTexture [_Illum] {
29.    
30.          Combine texture * previous
31.     }
32. }
33.  
34. Pass {
35. Blend One One
36.  
37.  
38.     SetTexture [_Cube] {
39.    
40.         constantColor [_ReflectColor]
41.         Combine  texture * constant
42.    
43.                
44.                
45.        
46.    
47.                                 }
48.  
49.  
50.     }
51.  
52.  
53. }
54. }

 

Thanks. It is very usefull. What about Lightmapped reflective bumped specular?

 

It's not working with specular map in alpha channel of diffuse texture.

 

Hi,pradmegs
could tell me where can i use this shader ?

 

Hi,pradmegs
could you tell me where can i use this shader?

 

This shader helped A LOT.

Thanks for posting it.

I don't know nothing about programming shaders. Willing to start on it, but if anyone can suggest on how to improve this code could save me a little work.

Thanks.

 

Thanks, was looking for this shader