Realistic Moving Grass (unity cannot map instruction to v5 ??)

Hello,

I have a question and need help. I have a texture effect shader that creates a grass like movement using a white to black perlin noise on top its white/black but vertical it fades completely to black.

The problem with the code is the following line. It works in the Editor but not on Android.

Code (CSharp):

1. (tex2D(_Noise, v.texcoord.xy)

I'm getting a the following message when compiling the shader.

If anyone can help, I would appreciate it. I'm not sure of the line conversion. Feel free to use the code.

The app is located at Google Play Store. I could use some alpha testers if anyone interested and/or feedback.

Vivienne

I'm using Unity 3.5.4p1 on Linux. My platform is Ubuntu 14.04.

Code (CSharp):

1. Shader "Custom/TextureEffect" {
2.      Properties {
3.          [PerRendererData] _MainTex ("Tex For Alpha (RGB)", 2D) = "white" {}
4.          _Magnitude("Magnitude", Range(0,1)) = 1
5.          _Noise("Noise",2D) = "white" {}
6.    
7.      }
8.      SubShader {
9.          Tags {
10.              "RenderType"="Transparent"
11.              "Queue"="Transparent"
12.              "IgnoreProjector"="True"
13.              "CanUseSpriteAtlas"="True"
14.              "PreviewType"="Plane"
15.          }
16.          Cull Off
17.          Lighting Off
18.          Zwrite Off
19.          Fog {Mode Off}
20.          Blend SrcAlpha OneMinusSrcAlpha
21.        
22.          CGPROGRAM
23.          //Surface shader
24.          #pragma surface surf Lambert alpha vertex:vert
25.        
26.          sampler2D _MainTex;
27.          float _Magnitude;
28.          sampler2D _Noise;
29.    
30.          struct Input {
31.              float2 uv_MainTex;
32.              float4 screenPos;
33.                        
34.          };
35.        
36.              
37.          void vert (inout appdata_full v)
38.          {
39.              float timechange = sin(_Time.y);
40.  
41.            
42.               float2 uvHack = float2(frac(v.vertex.x + v.vertex.y + v.vertex.z),
43.                                 frac(v.vertex.x * v.vertex.y * v.vertex.z));
44.                        
45.               float3 noise = tex2D(_Noise,uvHack).rgb;
46.            
47.               v.vertex.xyz = v.vertex.xyz - (v.normal.xyz * (_Magnitude*timechange));
48.              
49.               // v.vertex.x = v.vertex.x+((_Magnitude*timechange)*(tex2D(_Noise, v.texcoord.xy)));                
50.              //  Line works in editor but not Android. It creates a can't be converted to gl v5.0
51.              //  (tex2D(_Noise, v.texcoord.xy)
52.           }
53.  
54.          void surf (Input IN, inout SurfaceOutput o) {
55.              half2 screenUV = IN.screenPos.xy/IN.screenPos.w;
56.              half4 primary = tex2D (_MainTex, IN.uv_MainTex);
57.      
58.      
59.              o.Albedo=primary.rgb; //Keep sprite textures otherwise
60.              o.Alpha=primary.a; //Keep sprite transparency
61.              o.Albedo=o.Albedo*5; //Restore normal brightness, don't know why
62.            
63.          }
64.          ENDCG
65.      }
66.      //This fallback shader completely discards the effect, and isn't really acceptable, but oh well
67.      FallBack "Diffuse"
68. }

 

fyi: there is a shaders sub forum if you don't get a useful response here
http://forum.unity3d.com/forums/shaders.16/

 

Thanks. If I don't get a response later in the day. I'll post it there. I posted it here because it's might be a more general question.