bgfx/3rdparty/glsl-optimizer/tests/vertex/zun-Surface_ScreenPos1-in.txt

mat3 xll_constructMat3( mat4 m) {
  return mat3( vec3( m[0]), vec3( m[1]), vec3( m[2]));
}
struct v2f_vertex_lit {
    vec2 uv;
    vec4 diff;
    vec4 spec;
};
struct v2f_img {
    vec4 pos;
    vec2 uv;
};
struct appdata_img {
    vec4 vertex;
    vec2 texcoord;
};
struct SurfaceOutput {
    vec3 Albedo;
    vec3 Normal;
    vec3 Emission;
    float Specular;
    float Gloss;
    float Alpha;
};
struct Input {
    vec4 screenPos;
};
struct v2f_surf {
    vec4 pos;
    float fog;
    vec3 normal;
    vec3 lightDir;
    vec3 _LightCoord;
};
struct appdata_full {
    vec4 vertex;
    vec4 tangent;
    vec3 normal;
    vec4 texcoord;
    vec4 texcoord1;
    vec4 color;
};
uniform mat4 _LightMatrix0;
uniform mat4 _Object2World;
uniform vec4 _WorldSpaceLightPos0;

uniform vec4 unity_Scale;
vec3 WorldSpaceLightDir( in vec4 v );
void PositionFog( in vec4 v, out vec4 pos, out float fog );
v2f_surf vert_surf( in appdata_full v );
vec3 WorldSpaceLightDir( in vec4 v ) {
    vec3 worldPos;
    worldPos = ( _Object2World * v ).xyz ;
    return (_WorldSpaceLightPos0.xyz  - worldPos);
}
void PositionFog( in vec4 v, out vec4 pos, out float fog ) {
    pos = ( gl_ModelViewProjectionMatrix * v );
    fog = pos.z ;
}
v2f_surf vert_surf( in appdata_full v ) {
    v2f_surf o;
    PositionFog( v.vertex, o.pos, o.fog);
    o.normal = ( xll_constructMat3( _Object2World) * (v.normal * unity_Scale.w ) );
    o.lightDir = WorldSpaceLightDir( v.vertex);
    o._LightCoord = ( _LightMatrix0 * ( _Object2World * v.vertex ) ).xyz ;
    return o;
}
attribute vec4 TANGENT;
varying vec4 xlv_FOG;
void main() {
    v2f_surf xl_retval;
    appdata_full xlt_v;
    xlt_v.vertex = vec4( gl_Vertex);
    xlt_v.tangent = vec4( TANGENT);
    xlt_v.normal = vec3( gl_Normal);
    xlt_v.texcoord = vec4( gl_MultiTexCoord0);
    xlt_v.texcoord1 = vec4( gl_MultiTexCoord1);
    xlt_v.color = vec4( gl_Color);
    xl_retval = vert_surf( xlt_v);
    gl_Position = vec4( xl_retval.pos);
    xlv_FOG = vec4( xl_retval.fog, 0.0, 0.0, 0.0);
    gl_TexCoord[0] = vec4( xl_retval.normal, 0.0);
    gl_TexCoord[1] = vec4( xl_retval.lightDir, 0.0);
    gl_TexCoord[2] = vec4( xl_retval._LightCoord, 0.0);
}