bgfx/3rdparty/glsl-optimizer/tests/vertex/unity-Hidden_TerrainEngine_BillboardTree-ir.txt

struct v2f {
  vec4 pos;
  float fog;
  vec4 color;
  vec2 uv;
};
struct appdata_tree_billboard {
  vec4 vertex;
  vec4 color;
  vec4 texcoord;
  vec2 texcoord1;
};
varying vec4 xlv_FOG;
uniform vec4 _TreeBillboardDistances;
uniform vec4 _TreeBillboardCameraUp;
uniform vec3 _TreeBillboardCameraRight;
uniform vec4 _TreeBillboardCameraPos;
uniform vec4 _TreeBillboardCameraFront;
void TerrainBillboardTree (
  inout vec4 pos,
  in vec2 offset,
  in float offsetz
)
{
  float absRadius;
  float billboardRootOffsetFactor;
  float billboardModeFactor;
  float radius;
  float billboardAngleFactor;
  float treeDistanceSqr;
  vec3 treePos;
  vec3 tmpvar_1;
  tmpvar_1 = (pos.xyz - _TreeBillboardCameraPos.xyz);
  treePos = tmpvar_1;
  float tmpvar_2;
  tmpvar_2 = dot (treePos, treePos);
  float tmpvar_3;
  tmpvar_3 = tmpvar_2;
  treeDistanceSqr = tmpvar_3;
  if ((treeDistanceSqr > _TreeBillboardDistances.x)) {
    vec2 tmpvar_4;
    tmpvar_4 = vec2(0.0, 0.0);
    offset = tmpvar_4.xy.xy;
  };
  vec3 tmpvar_5;
  tmpvar_5 = (pos.xyz + (_TreeBillboardCameraRight.xyz * offset.x));
  pos.xyz = tmpvar_5.xyz.xyz;
  float tmpvar_6;
  tmpvar_6 = _TreeBillboardCameraPos.w;
  billboardAngleFactor = tmpvar_6;
  float tmpvar_7;
  tmpvar_7 = mix (offset.y, offsetz, billboardAngleFactor);
  float tmpvar_8;
  tmpvar_8 = tmpvar_7;
  radius = tmpvar_8;
  float tmpvar_9;
  tmpvar_9 = _TreeBillboardCameraUp.w;
  billboardModeFactor = tmpvar_9;
  float tmpvar_10;
  tmpvar_10 = _TreeBillboardCameraFront.w;
  billboardRootOffsetFactor = tmpvar_10;
  float tmpvar_11;
  tmpvar_11 = abs (radius);
  float tmpvar_12;
  tmpvar_12 = tmpvar_11;
  absRadius = tmpvar_12;
  float tmpvar_13;
  tmpvar_13 = max (0.0, radius);
  vec3 tmpvar_14;
  tmpvar_14 = vec3(billboardModeFactor);
  vec3 tmpvar_15;
  tmpvar_15 = mix (((((_TreeBillboardCameraUp.xyz * tmpvar_13) * 2.0) - (vec3(0.0, 1.0, 0.0) * absRadius)) - ((_TreeBillboardCameraUp.xyz * absRadius) * billboardRootOffsetFactor)), (_TreeBillboardCameraUp.xyz * radius), tmpvar_14);
  vec3 tmpvar_16;
  tmpvar_16 = (pos.xyz + tmpvar_15);
  pos.xyz = tmpvar_16.xyz.xyz;
}

v2f vert (
  in appdata_tree_billboard v
)
{
  v2f o;
  TerrainBillboardTree (v.vertex, v.texcoord1.xy, v.texcoord.y);
  vec4 tmpvar_1;
  tmpvar_1 = (gl_ModelViewProjectionMatrix * v.vertex);
  o.pos = tmpvar_1;
  float tmpvar_2;
  tmpvar_2 = o.pos.z;
  o.fog = tmpvar_2;
  float tmpvar_3;
  tmpvar_3 = v.texcoord.x;
  o.uv.x = tmpvar_3;
  float tmpvar_4;
  tmpvar_4 = float((v.texcoord.y > 0.0));
  o.uv.y = vec2(tmpvar_4).y;
  vec4 tmpvar_5;
  tmpvar_5 = v.color;
  o.color = tmpvar_5;
  return o;
}

void main ()
{
  appdata_tree_billboard xlt_v;
  v2f xl_retval;
  vec4 tmpvar_1;
  tmpvar_1 = gl_Vertex.xyzw;
  vec4 tmpvar_2;
  tmpvar_2 = tmpvar_1;
  xlt_v.vertex = tmpvar_2;
  vec4 tmpvar_3;
  tmpvar_3 = gl_Color.xyzw;
  vec4 tmpvar_4;
  tmpvar_4 = tmpvar_3;
  xlt_v.color = tmpvar_4;
  vec4 tmpvar_5;
  tmpvar_5 = gl_MultiTexCoord0.xyzw;
  vec4 tmpvar_6;
  tmpvar_6 = tmpvar_5;
  xlt_v.texcoord = tmpvar_6;
  vec2 tmpvar_7;
  tmpvar_7 = gl_MultiTexCoord1.xy;
  vec2 tmpvar_8;
  tmpvar_8 = tmpvar_7;
  xlt_v.texcoord1 = tmpvar_8;
  v2f tmpvar_9;
  tmpvar_9 = vert (xlt_v);
  v2f tmpvar_10;
  tmpvar_10 = tmpvar_9;
  xl_retval = tmpvar_10;
  vec4 tmpvar_11;
  tmpvar_11 = xl_retval.pos.xyzw;
  vec4 tmpvar_12;
  tmpvar_12 = tmpvar_11;
  gl_Position = tmpvar_12;
  vec4 tmpvar_13;
  tmpvar_13.yzw = vec3(0.0, 0.0, 0.0);
  tmpvar_13.x = xl_retval.fog;
  vec4 tmpvar_14;
  tmpvar_14 = tmpvar_13;
  xlv_FOG = tmpvar_14;
  vec4 tmpvar_15;
  tmpvar_15 = xl_retval.color.xyzw;
  vec4 tmpvar_16;
  tmpvar_16 = tmpvar_15;
  gl_FrontColor = tmpvar_16;
  vec4 tmpvar_17;
  tmpvar_17.zw = vec2(0.0, 0.0);
  tmpvar_17.xy = xl_retval.uv.xy;
  vec4 tmpvar_18;
  tmpvar_18 = tmpvar_17;
  gl_TexCoord[0] = tmpvar_18;
}