diff options
Diffstat (limited to 'source/gameengine/Rasterizer/RAS_OpenGLFilters/RAS_Prewitt2DFilter.h')
-rw-r--r-- | source/gameengine/Rasterizer/RAS_OpenGLFilters/RAS_Prewitt2DFilter.h | 62 |
1 files changed, 0 insertions, 62 deletions
diff --git a/source/gameengine/Rasterizer/RAS_OpenGLFilters/RAS_Prewitt2DFilter.h b/source/gameengine/Rasterizer/RAS_OpenGLFilters/RAS_Prewitt2DFilter.h deleted file mode 100644 index 4ae6009fdeb..00000000000 --- a/source/gameengine/Rasterizer/RAS_OpenGLFilters/RAS_Prewitt2DFilter.h +++ /dev/null @@ -1,62 +0,0 @@ -/* - * ***** BEGIN GPL LICENSE BLOCK ***** - * - * 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, Fifth Floor, Boston, MA 02110-1301, USA. - * - * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV. - * All rights reserved. - * - * The Original Code is: all of this file. - * - * Contributor(s): none yet. - * - * ***** END GPL LICENSE BLOCK ***** - */ - -/** \file RAS_Prewitt2DFilter.h - * \ingroup bgerastoglfilters - */ - -#ifndef __RAS_PREWITT2DFILTER_H__ -#define __RAS_PREWITT2DFILTER_H__ - -static const char *PrewittFragmentShader = STRINGIFY( -uniform sampler2D bgl_RenderedTexture; -uniform vec2 bgl_TextureCoordinateOffset[9]; - -void main(void) -{ - vec4 sample[9]; - - for (int i = 0; i < 9; i++) - { - sample[i] = texture2D(bgl_RenderedTexture, - gl_TexCoord[0].st + bgl_TextureCoordinateOffset[i]); - } - - vec4 horizEdge = sample[2] + sample[5] + sample[8] - - (sample[0] + sample[3] + sample[6]); - - vec4 vertEdge = sample[0] + sample[1] + sample[2] - - (sample[6] + sample[7] + sample[8]); - - gl_FragColor.rgb = sqrt((horizEdge.rgb * horizEdge.rgb) + - (vertEdge.rgb * vertEdge.rgb)); - gl_FragColor.a = 1.0; -} - -); -#endif - |