[SOLVED] Problem adding NormalMap to ToonShader

Hi everyones !

So I'm very weak in shaders script and so I take the Standart ToonShader and try to insert a NormalMap.

There is the Shader code :

Code (CSharp):

1. Shader "Toon/Lit" {
2.     Properties {
3.         _Color ("Main Color", Color) = (0.5,0.5,0.5,1)
4.         _MainTex ("Base (RGB)", 2D) = "white" {}
5.         _BumpMap ("Normalmap", 2D) = "bump" {}
6.         _Ramp ("Toon Ramp (RGB)", 2D) = "gray" {}
7.     }
8.  
9.     SubShader {
10.         Tags { "RenderType"="Opaque" }
11.        
12.         Cull Off
13.        
14. CGPROGRAM
15. #pragma surface surf ToonRamp
16.  
17. sampler2D _Ramp;
18.  
19. // custom lighting function that uses a texture ramp based
20. // on angle between light direction and normal
21. #pragma lighting ToonRamp exclude_path:prepass
22. inline half4 LightingToonRamp (SurfaceOutput s, half3 lightDir, half atten)
23. {
24.     #ifndef USING_DIRECTIONAL_LIGHT
25.     lightDir = normalize(lightDir);
26.     #endif
27.    
28.     half d = dot (s.Normal, lightDir)*0.5 + 0.5;
29.     half3 ramp = tex2D (_Ramp, float2(d,d)).rgb;
30.    
31.     half4 c;
32.     c.rgb = s.Albedo * _LightColor0.rgb * ramp * (atten * 2);
33.     c.a = 0;
34.     return c;
35. }
36.  
37.  
38. sampler2D _MainTex;
39. sampler2D _BumpMap;
40. float4 _Color;
41.  
42. struct Input {
43.     float2 uv_MainTex : TEXCOORD0;
44.     float2 uv_BumpMap : TEXCOORD0;
45. };
46.  
47. void surf (Input IN, inout SurfaceOutput o) {
48.     half4 c = tex2D(_MainTex, IN.uv_MainTex) * _Color;
49.     o.Albedo = c.rgb;
50.     o.Normal = UnpackNormal(tex2D(_BumpMap, IN.uv_BumpMap));
51.     o.Alpha = c.a;
52. }
53. ENDCG
54.  
55.     }
56.  
57.     Fallback "Diffuse"
58. }
59.  

Just modify properties and theses lines :

Code (CSharp):

1. sampler2D _MainTex;
2. sampler2D _BumpMap;
3. float4 _Color;
4.  
5. struct Input {
6.     float2 uv_MainTex : TEXCOORD0;
7.     float2 uv_BumpMap : TEXCOORD0;
8. };
9.  
10. void surf (Input IN, inout SurfaceOutput o) {
11.     half4 c = tex2D(_MainTex, IN.uv_MainTex) * _Color;
12.     o.Albedo = c.rgb;
13.     o.Normal = UnpackNormal(tex2D(_BumpMap, IN.uv_BumpMap));
14.     o.Alpha = c.a;
15. }

To add NormalMap (Don't know if it's the good way)

Then my normal don't have the good effect on the object ...

My sword rendered :
http://postimg.org/image/faaz3revb/

And then my Nmap :
http://postimg.org/image/7gyyazanr/

An idea of why the Nmap doesnt stick correctly to object ?

 

I guess your sword mesh does not contain a secondary UV channel dedicated for the normal map. Though, it's fine (and simpler) to use the same UVs as the "Main Color" texture:

Code (CSharp):

1. sampler2D _MainTex;
2. sampler2D _BumpMap;
3. float4 _Color;
4. struct Input {
5.     float2 uv_MainTex : TEXCOORD0;
6. };
7. void surf (Input IN, inout SurfaceOutput o) {
8.     half4 c = tex2D(_MainTex, IN.uv_MainTex) * _Color;
9.     o.Albedo = c.rgb;
10.     o.Normal = UnpackNormal(tex2D(_BumpMap, IN.uv_MainTex));
11.     o.Alpha = c.a;
12. }

 

Thank You ! Works great !!