bgfx/3rdparty/glsl-optimizer/tests/fragment/unity-Hidden_Internal-PrePassCollectShadows-ir.txt

struct v2f {
  vec4 pos;
  vec2 uv;
  vec3 ray;
};
uniform vec4 _ZBufferParams;
uniform mat4 _View2Shadow3;
uniform mat4 _View2Shadow2;
uniform mat4 _View2Shadow1;
uniform mat4 _View2Shadow;
uniform sampler2D _ShadowMapTexture;
uniform vec4 _LightSplitsNear;
uniform vec4 _LightSplitsFar;
uniform vec4 _LightShadowData;
uniform sampler2D _CameraDepthTexture;
float unitySampleShadow (
  in vec4 eyePos
)
{
  float shadow;
  vec4 coord;
  vec4 weights;
  vec4 far;
  vec4 near;
  float z;
  vec3 sc3;
  vec3 sc2;
  vec3 sc1;
  vec3 sc0;
  vec3 tmpvar_1;
  tmpvar_1 = (_View2Shadow * eyePos).xyz;
  sc0 = tmpvar_1;
  vec3 tmpvar_2;
  tmpvar_2 = (_View2Shadow1 * eyePos).xyz;
  sc1 = tmpvar_2;
  vec3 tmpvar_3;
  tmpvar_3 = (_View2Shadow2 * eyePos).xyz;
  sc2 = tmpvar_3;
  vec3 tmpvar_4;
  tmpvar_4 = (_View2Shadow3 * eyePos).xyz;
  sc3 = tmpvar_4;
  float tmpvar_5;
  tmpvar_5 = eyePos.z;
  z = tmpvar_5;
  vec4 tmpvar_6;
  tmpvar_6 = vec4(z);
  bvec4 tmpvar_7;
  tmpvar_7 = greaterThanEqual (tmpvar_6, _LightSplitsNear);
  vec4 tmpvar_8;
  tmpvar_8 = vec4(tmpvar_7).xyzw;
  vec4 tmpvar_9;
  tmpvar_9 = tmpvar_8;
  near = tmpvar_9;
  vec4 tmpvar_10;
  tmpvar_10 = vec4(z);
  bvec4 tmpvar_11;
  tmpvar_11 = lessThan (tmpvar_10, _LightSplitsFar);
  vec4 tmpvar_12;
  tmpvar_12 = vec4(tmpvar_11).xyzw;
  vec4 tmpvar_13;
  tmpvar_13 = tmpvar_12;
  far = tmpvar_13;
  vec4 tmpvar_14;
  tmpvar_14 = (near * far);
  weights = tmpvar_14;
  vec4 tmpvar_15;
  tmpvar_15.w = 1.0;
  tmpvar_15.xyz = ((((sc0 * weights.x) + (sc1 * weights.y)) + (sc2 * weights.z)) + (sc3 * weights.w)).xyz;
  vec4 tmpvar_16;
  tmpvar_16 = tmpvar_15;
  coord = tmpvar_16;
  vec4 tmpvar_17;
  tmpvar_17 = texture2D (_ShadowMapTexture, coord.xy);
  float tmpvar_18;
  if ((tmpvar_17.x < coord.z)) {
    tmpvar_18 = _LightShadowData.x;
  } else {
    tmpvar_18 = 1.0;
  };
  float tmpvar_19;
  tmpvar_19 = tmpvar_18;
  shadow = tmpvar_19;
  return shadow;
}

float Linear01Depth (
  in float z
)
{
  return (1.0 / ((_ZBufferParams.x * z) + _ZBufferParams.y));
}

vec2 EncodeFloatRG (
  in float v
)
{
  vec2 enc;
  float kEncodeBit;
  vec2 kEncodeMul;
  vec2 tmpvar_1;
  tmpvar_1 = vec2(1.0, 255.0);
  kEncodeMul = tmpvar_1;
  float tmpvar_2;
  tmpvar_2 = 0.00392157;
  kEncodeBit = tmpvar_2;
  vec2 tmpvar_3;
  tmpvar_3 = (kEncodeMul * v);
  enc = tmpvar_3;
  vec2 tmpvar_4;
  tmpvar_4 = fract (enc);
  vec2 tmpvar_5;
  tmpvar_5 = tmpvar_4;
  enc = tmpvar_5;
  float tmpvar_6;
  tmpvar_6 = (enc.x - (enc.y * kEncodeBit));
  enc.x = tmpvar_6;
  return enc;
}

vec4 frag (
  in v2f i
)
{
  vec4 res;
  float shadow;
  vec4 vpos;
  float depth;
  vec4 tmpvar_1;
  tmpvar_1 = texture2D (_CameraDepthTexture, i.uv);
  float tmpvar_2;
  tmpvar_2 = tmpvar_1.x;
  depth = tmpvar_2;
  float tmpvar_3;
  tmpvar_3 = Linear01Depth (depth);
  float tmpvar_4;
  tmpvar_4 = tmpvar_3;
  depth = tmpvar_4;
  vec4 tmpvar_5;
  tmpvar_5.w = 1.0;
  tmpvar_5.xyz = (i.ray * depth).xyz;
  vec4 tmpvar_6;
  tmpvar_6 = tmpvar_5;
  vpos = tmpvar_6;
  float tmpvar_7;
  tmpvar_7 = unitySampleShadow (vpos);
  float tmpvar_8;
  tmpvar_8 = tmpvar_7;
  shadow = tmpvar_8;
  float tmpvar_9;
  tmpvar_9 = shadow;
  res.x = tmpvar_9;
  float tmpvar_10;
  tmpvar_10 = 1.0;
  res.y = vec2(tmpvar_10).y;
  vec2 tmpvar_11;
  tmpvar_11 = EncodeFloatRG ((1.0 - depth));
  vec2 tmpvar_12;
  tmpvar_12 = tmpvar_11;
  res.zw = tmpvar_12.xxxy.zw;
  return res;
}

void main ()
{
  v2f xlt_i;
  vec4 xl_retval;
  vec4 tmpvar_1;
  tmpvar_1 = vec4(0.0, 0.0, 0.0, 0.0);
  xlt_i.pos = tmpvar_1;
  vec2 tmpvar_2;
  tmpvar_2 = gl_TexCoord[0].xy;
  vec2 tmpvar_3;
  tmpvar_3 = tmpvar_2;
  xlt_i.uv = tmpvar_3;
  vec3 tmpvar_4;
  tmpvar_4 = gl_TexCoord[1].xyz;
  vec3 tmpvar_5;
  tmpvar_5 = tmpvar_4;
  xlt_i.ray = tmpvar_5;
  vec4 tmpvar_6;
  tmpvar_6 = frag (xlt_i);
  vec4 tmpvar_7;
  tmpvar_7 = tmpvar_6;
  xl_retval = tmpvar_7;
  vec4 tmpvar_8;
  tmpvar_8 = xl_retval.xyzw;
  vec4 tmpvar_9;
  tmpvar_9 = tmpvar_8;
  gl_FragData[0] = tmpvar_9;
}