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/*
* Stellarium Scenery3d Plug-in
*
* Copyright (C) 2015 Simon Parzer, Peter Neubauer, Georg Zotti, Andrei Borza, Florian Schaukowitsch
*
* 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., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA.
*/
/*
This is the shader used for debugging bounding boxes, frustums, polyhedra etc.
Because the old code extensively uses the immediate GL mode (glBegin/glEnd), this
shader currently uses part of the fixed-function pipeline. This will make this shader
fail to compile on OpenGL ES!
*/
uniform mat4 u_mMVP;
void main(void)
{
//this should result in the vertices specified by glBegin/glEnd
//transforms are assumed to be identity matrices
vec4 oldVert = ftransform();
//we do the "real" transform ourselves using the same matrices as the other shaders use
gl_Position = u_mMVP * oldVert;
gl_FrontColor = gl_Color;
}
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