2013-10-18 09:55:43 +04:00
|
|
|
/*
|
2014-01-14 02:45:18 +04:00
|
|
|
* Copyright 2013-2014 Dario Manesku. All rights reserved.
|
2013-10-18 09:55:43 +04:00
|
|
|
* License: http://www.opensource.org/licenses/BSD-2-Clause
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
#include "../common/common.sh"
|
|
|
|
|
|
|
|
|
|
vec4 stencilColor(float _k)
|
|
|
|
|
{
|
|
|
|
|
return vec4(float(abs(_k - 1.0) < 0.0001)/255.0
|
|
|
|
|
, float(abs(_k + 1.0) < 0.0001)/255.0
|
|
|
|
|
, float(abs(_k - 2.0) < 0.0001)/255.0
|
|
|
|
|
, float(abs(_k + 2.0) < 0.0001)/255.0
|
|
|
|
|
);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void main()
|
|
|
|
|
{
|
|
|
|
|
float k = 1.0;
|
|
|
|
|
if (!gl_FrontFacing)
|
|
|
|
|
k = -k;
|
|
|
|
|
|
|
|
|
|
gl_FragColor = stencilColor(k);
|
|
|
|
|
}
|
