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executable file 45 lines (37 sloc) 1.516 kB
/*
Copyright (C) 2005 guest(r) - guest.r@gmail.com
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
//uniform vec4 OGL2Param;
//uniform vec4 OGL2Size;
void main()
{
//float x = (OGL2Size.x/2048.0)*OGL2Param.x;
//float y = (OGL2Size.y/1024.0)*OGL2Param.y;
float x = 0.5;
float y = 0.4;
vec2 dg1 = vec2( x,y);
vec2 dg2 = vec2(-x,y);
vec2 sd1 = dg1*0.5;
vec2 sd2 = dg2*0.5;
gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex;
gl_TexCoord[0] = gl_MultiTexCoord0;
gl_TexCoord[1].xy = gl_TexCoord[0].xy - sd1;
gl_TexCoord[2].xy = gl_TexCoord[0].xy - sd2;
gl_TexCoord[3].xy = gl_TexCoord[0].xy + sd1;
gl_TexCoord[4].xy = gl_TexCoord[0].xy + sd2;
gl_TexCoord[5].xy = gl_TexCoord[0].xy - dg1;
gl_TexCoord[6].xy = gl_TexCoord[0].xy + dg1;
gl_TexCoord[5].zw = gl_TexCoord[0].xy - dg2;
gl_TexCoord[6].zw = gl_TexCoord[0].xy + dg2;
}
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