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/*
** Copyright (c) 2012 The Khronos Group Inc.
**
** Permission is hereby granted, free of charge, to any person obtaining a
** copy of this software and/or associated documentation files (the
** "Materials"), to deal in the Materials without restriction, including
** without limitation the rights to use, copy, modify, merge, publish,
** distribute, sublicense, and/or sell copies of the Materials, and to
** permit persons to whom the Materials are furnished to do so, subject to
** the following conditions:
**
** The above copyright notice and this permission notice shall be included
** in all copies or substantial portions of the Materials.
**
** THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
** MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
*/
/* The following files are direct copies of each other:
*
* GL/acos/acos_vec3_frag_xvary_ref.frag
* GL/asin/asin_vec3_frag_xvary_ref.frag
*
* Care should be taken to apply any changes to both. Only the last
* line where gl_FragColor is assigned should be different.
*/
#ifdef GL_ES
precision mediump float;
#endif
varying vec4 color;
float lerp(float a, float b, float s)
{
return a + (b - a) * s;
}
void main (void)
{
float asinValues[17];
asinValues[0] = -1.5708;
asinValues[1] = -1.06544;
asinValues[2] = -0.848062;
asinValues[3] = -0.675132;
asinValues[4] = -0.523599;
asinValues[5] = -0.384397;
asinValues[6] = -0.25268;
asinValues[7] = -0.125328;
asinValues[8] = 0.0;
asinValues[9] = 0.125328;
asinValues[10] = 0.25268;
asinValues[11] = 0.384397;
asinValues[12] = 0.523599;
asinValues[13] = 0.675132;
asinValues[14] = 0.848062;
asinValues[15] = 1.06544;
asinValues[16] = 1.5708;
const float M_PI = 3.14159265358979323846;
vec3 c = 2.0 * (color.rgb - 0.5);
vec3 arrVal = (c + vec3(1.0, 1.0, 1.0)) * 8.0;
int arr0x = int(floor(arrVal.x));
int arr0y = int(floor(arrVal.y));
int arr0z = int(floor(arrVal.z));
vec3 weight = arrVal - floor(arrVal);
vec3 asin_c = vec3(0.0);
if (arr0x == 0)
asin_c.x = lerp(asinValues[0], asinValues[1], weight.x);
else if (arr0x == 1)
asin_c.x = lerp(asinValues[1], asinValues[2], weight.x);
else if (arr0x == 2)
asin_c.x = lerp(asinValues[2], asinValues[3], weight.x);
else if (arr0x == 3)
asin_c.x = lerp(asinValues[3], asinValues[4], weight.x);
else if (arr0x == 4)
asin_c.x = lerp(asinValues[4], asinValues[5], weight.x);
else if (arr0x == 5)
asin_c.x = lerp(asinValues[5], asinValues[6], weight.x);
else if (arr0x == 6)
asin_c.x = lerp(asinValues[6], asinValues[7], weight.x);
else if (arr0x == 7)
asin_c.x = lerp(asinValues[7], asinValues[8], weight.x);
else if (arr0x == 8)
asin_c.x = lerp(asinValues[8], asinValues[9], weight.x);
else if (arr0x == 9)
asin_c.x = lerp(asinValues[9], asinValues[10], weight.x);
else if (arr0x == 10)
asin_c.x = lerp(asinValues[10], asinValues[11], weight.x);
else if (arr0x == 11)
asin_c.x = lerp(asinValues[11], asinValues[12], weight.x);
else if (arr0x == 12)
asin_c.x = lerp(asinValues[12], asinValues[13], weight.x);
else if (arr0x == 13)
asin_c.x = lerp(asinValues[13], asinValues[14], weight.x);
else if (arr0x == 14)
asin_c.x = lerp(asinValues[14], asinValues[15], weight.x);
else if (arr0x == 15)
asin_c.x = lerp(asinValues[15], asinValues[16], weight.x);
else if (arr0x == 16)
asin_c.x = asinValues[16];
if (arr0y == 0)
asin_c.y = lerp(asinValues[0], asinValues[1], weight.y);
else if (arr0y == 1)
asin_c.y = lerp(asinValues[1], asinValues[2], weight.y);
else if (arr0y == 2)
asin_c.y = lerp(asinValues[2], asinValues[3], weight.y);
else if (arr0y == 3)
asin_c.y = lerp(asinValues[3], asinValues[4], weight.y);
else if (arr0y == 4)
asin_c.y = lerp(asinValues[4], asinValues[5], weight.y);
else if (arr0y == 5)
asin_c.y = lerp(asinValues[5], asinValues[6], weight.y);
else if (arr0y == 6)
asin_c.y = lerp(asinValues[6], asinValues[7], weight.y);
else if (arr0y == 7)
asin_c.y = lerp(asinValues[7], asinValues[8], weight.y);
else if (arr0y == 8)
asin_c.y = lerp(asinValues[8], asinValues[9], weight.y);
else if (arr0y == 9)
asin_c.y = lerp(asinValues[9], asinValues[10], weight.y);
else if (arr0y == 10)
asin_c.y = lerp(asinValues[10], asinValues[11], weight.y);
else if (arr0y == 11)
asin_c.y = lerp(asinValues[11], asinValues[12], weight.y);
else if (arr0y == 12)
asin_c.y = lerp(asinValues[12], asinValues[13], weight.y);
else if (arr0y == 13)
asin_c.y = lerp(asinValues[13], asinValues[14], weight.y);
else if (arr0y == 14)
asin_c.y = lerp(asinValues[14], asinValues[15], weight.y);
else if (arr0y == 15)
asin_c.y = lerp(asinValues[15], asinValues[16], weight.y);
else if (arr0y == 16)
asin_c.y = asinValues[16];
if (arr0z == 0)
asin_c.z = lerp(asinValues[0], asinValues[1], weight.z);
else if (arr0z == 1)
asin_c.z = lerp(asinValues[1], asinValues[2], weight.z);
else if (arr0z == 2)
asin_c.z = lerp(asinValues[2], asinValues[3], weight.z);
else if (arr0z == 3)
asin_c.z = lerp(asinValues[3], asinValues[4], weight.z);
else if (arr0z == 4)
asin_c.z = lerp(asinValues[4], asinValues[5], weight.z);
else if (arr0z == 5)
asin_c.z = lerp(asinValues[5], asinValues[6], weight.z);
else if (arr0z == 6)
asin_c.z = lerp(asinValues[6], asinValues[7], weight.z);
else if (arr0z == 7)
asin_c.z = lerp(asinValues[7], asinValues[8], weight.z);
else if (arr0z == 8)
asin_c.z = lerp(asinValues[8], asinValues[9], weight.z);
else if (arr0z == 9)
asin_c.z = lerp(asinValues[9], asinValues[10], weight.z);
else if (arr0z == 10)
asin_c.z = lerp(asinValues[10], asinValues[11], weight.z);
else if (arr0z == 11)
asin_c.z = lerp(asinValues[11], asinValues[12], weight.z);
else if (arr0z == 12)
asin_c.z = lerp(asinValues[12], asinValues[13], weight.z);
else if (arr0z == 13)
asin_c.z = lerp(asinValues[13], asinValues[14], weight.z);
else if (arr0z == 14)
asin_c.z = lerp(asinValues[14], asinValues[15], weight.z);
else if (arr0z == 15)
asin_c.z = lerp(asinValues[15], asinValues[16], weight.z);
else if (arr0z == 16)
asin_c.z = asinValues[16];
gl_FragColor = vec4(asin_c / M_PI + 0.5, 1.0);
}
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