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POUnity Shader: Deform a 3D model using vertex shader then apply specular using surface shader
 

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  1. POUnity Shader: Deform a 3D model using vertex shader then apply specular using surface shader
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    <p>I need help in applying a specular shade in a 3D model after I deformed it in CG vertex shader. I don't know how to do it in Unity shader. I already searched in google and there are no hits of what I am looking for.</p> <p>Below is my current solution. The 3D object is rendered twice.</p> <pre><code> Shader "myShader/DeformSpecular" { Properties { _Color ("Main Color", Color) = (1,1,1,0.5) _Shininess ("Shininess", Range (0.01, 1)) = 0.7 _MainTex ("Base (RGB)", 2D) = "white" { } _BumpMap ("Normalmap", 2D) = "bump" {} _cubeSize("Cube Size", Range (1, 10)) = 1 } SubShader { Tags { "RenderType"="Opaque" } LOD 250 Pass{ CGPROGRAM #pragma vertex vert #pragma fragment frag #include "UnityCG.cginc" #include "myShaderFuncs.cginc" sampler2D _MainTex; sampler2D _BumpMap; half _Shininess; float4 _Color; float4x4 _localOrient; //local orientation float4x4 _parentWOrient; //world orientation of parent node float _deformParam; struct v2f { float4 pos : SV_POSITION; float2 uv : TEXCOORD0; }; float4 _MainTex_ST; v2f vert (appdata_base v) { v2f o; o.pos = mul(_localOrient, v.vertex); //apply local transformation o.pos = deformShape(_deformParam); //apply deform o.pos = mul(_parentWOrient, o.pos); //apply parents world orientation o.pos = mul (UNITY_MATRIX_VP, o.pos); o.uv = TRANSFORM_TEX (v.texcoord, _MainTex); return o; } half4 frag (v2f i) : COLOR { half4 texcol = tex2D (_MainTex, i.uv); return texcol * _Color; } ENDCG }//Pass CGPROGRAM #pragma surface surf MobileBlinnPhong exclude_path:prepass nolightmap noforwardadd halfasview inline fixed4 LightingMobileBlinnPhong (SurfaceOutput s, fixed3 lightDir, fixed3 halfDir, fixed atten) { fixed diff = max (0, dot (s.Normal, lightDir)); fixed nh = max (0, dot (s.Normal, halfDir)); fixed spec = pow (nh, s.Specular*128) * s.Gloss; fixed4 c; c.rgb = (s.Albedo * _LightColor0.rgb * diff + _LightColor0.rgb * spec) * (atten*2); c.a = 0.0; return c; } sampler2D _MainTex; sampler2D _BumpMap; half _Shininess; struct Input { float2 uv_MainTex; }; void surf (Input IN, inout SurfaceOutput o) { fixed4 tex = tex2D(_MainTex, IN.uv_MainTex); o.Albedo = tex.rgb; o.Gloss = tex.a; o.Alpha = tex.a; o.Specular = _Shininess; o.Normal = UnpackNormal (tex2D(_BumpMap, IN.uv_MainTex)); } ENDCG }//SubShader FallBack "Mobile/VertexLit" } </code></pre>
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