bgfx/3rdparty/glsl-optimizer/tests/vertex/zun-Hidden_Tree_Optimized_Bark_Shader1-in.txt

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 appdata_full {
    vec4 vertex;
    vec4 tangent;
    vec3 normal;
    vec4 texcoord;
    vec4 texcoord1;
    vec4 color;
};
struct LeafSurfaceOutput {
    vec3 Albedo;
    vec3 Normal;
    vec3 Emission;
    vec3 Translucency;
    float Specular;
    float Gloss;
    float Alpha;
};
struct Input {
    vec2 uv_MainTex;
    vec4 color;
};
struct v2f_surf {
    vec4 pos;
};
uniform vec4 _Color;
uniform mat4 _Object2World;
uniform vec4 _Scale;
uniform float _SquashAmount;
uniform vec4 _SquashPlaneNormal;
uniform float _TimeX;
uniform vec4 _Wind;

uniform vec4 unity_LightShadowBias;
vec4 Squash( in vec4 pos );
vec4 TriangleWave( in vec4 x );
vec4 SmoothCurve( in vec4 x );
vec4 SmoothTriangleWave( in vec4 x );
vec4 AnimateVertex( in vec4 pos, in vec3 normal, in vec4 animParams );
void TreeVertBark( inout appdata_full v );
v2f_surf vert_surf( in appdata_full v );
vec4 Squash( in vec4 pos ) {
    vec3 projectedVertex;
    vec3 planePoint;
    vec3 planeNormal;
    projectedVertex = pos.xyz ;
    planePoint = vec3( 0.000000, _SquashPlaneNormal.w , 0.000000);
    planeNormal = _SquashPlaneNormal.xyz ;
    projectedVertex += (dot( planeNormal, (planePoint - vec3( pos))) * planeNormal);
    pos = vec4( mix( projectedVertex, pos.xyz , vec3( _SquashAmount)), 1.00000);
    return pos;
}
vec4 TriangleWave( in vec4 x ) {
    return abs( ((fract( (x + 0.500000) ) * 2.00000) - 1.00000) );
}
vec4 SmoothCurve( in vec4 x ) {
    return ((x * x) * (3.00000 - (2.00000 * x)));
}
vec4 SmoothTriangleWave( in vec4 x ) {
    return SmoothCurve( TriangleWave( x));
}
vec4 AnimateVertex( in vec4 pos, in vec3 normal, in vec4 animParams ) {
    float fDetailAmp = 0.100000;
    float fBranchAmp = 0.300000;
    float fObjPhase;
    float fBranchPhase;
    float fVtxPhase;
    vec2 vWavesIn;
    vec4 vWaves;
    vec2 vWavesSum;
    vec3 bend;
    fObjPhase = dot( _Object2World[ 3 ].xyz , vec3( 1.00000));
    fBranchPhase = (fObjPhase + animParams.x );
    fVtxPhase = dot( pos.xyz , vec3( (animParams.y  + fBranchPhase)));
    vWavesIn = (_TimeX + vec2( fVtxPhase, fBranchPhase));
    vWaves = ((fract( (vWavesIn.xxyy  * vec4( 1.97500, 0.793000, 0.375000, 0.193000)) ) * 2.00000) - 1.00000);
    vWaves = SmoothTriangleWave( vWaves);
    vWavesSum = (vWaves.xz  + vWaves.yw );
    bend = ((animParams.y  * fDetailAmp) * normal.xyz );
    bend.y  = (animParams.w  * fBranchAmp);
    pos.xyz  += (((vWavesSum.xyx  * bend) + ((_Wind.xyz  * vWavesSum.y ) * animParams.w )) * _Wind.w );
    pos.xyz  += (animParams.z  * _Wind.xyz );
    return pos;
}
void TreeVertBark( inout appdata_full v ) {
    v.vertex.xyz  *= _Scale.xyz ;
    v.vertex = AnimateVertex( v.vertex, v.normal, vec4( v.color.xy , v.texcoord1.xy ));
    v.vertex = Squash( v.vertex);
    v.color = vec4( (v.color.w  * _Color.xyz ), _Color.w );
    v.normal = normalize( v.normal );
    v.tangent.xyz  = normalize( v.tangent.xyz  );
}
v2f_surf vert_surf( in appdata_full v ) {
    v2f_surf o;
    TreeVertBark( v);
    o.pos = ( gl_ModelViewProjectionMatrix * v.vertex );
    o.pos.z  += unity_LightShadowBias.x ;
    if ( (o.pos.z  < ( -o.pos.w  )) ){
        o.pos.z  = ( -o.pos.w  );
    }
    return o;
}
attribute vec4 TANGENT;
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);
}