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594 jab 1 
/* ----------------------------------------------------------------------- *
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 * This file is part of GEL, http://www.imm.dtu.dk/GEL
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 * Copyright (C) the authors and DTU Informatics
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 * For license and list of authors, see ../../doc/intro.pdf
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 * ----------------------------------------------------------------------- */
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/**
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 * @file IDBufferWireFrameRenderer.h
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 * @brief Render a Manifold in wireframe. Not fast - but general.
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 */
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#ifndef __GLGRAPHICS_IDBUFFERWIREFRAMERENDERER_H__
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#define __GLGRAPHICS_IDBUFFERWIREFRAMERENDERER_H__
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#include "../GL/glew.h"
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#include "../CGLA/Vec3uc.h"
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#include "../CGLA/Vec3f.h"
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#include "../HMesh/Manifold.h"
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namespace GLGraphics
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{
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	/// Class for ID buffer based wireframe rendering. Handles all types of gons. Use with Manifold
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	class IDBufferWireframeRenderer
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		{
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			HMesh::Manifold* mesh;
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			GLint id_attrib;
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			GLint popp_attrib;
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			GLint disp_attrib;
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			int XSZ, YSZ;
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			float thickness;
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			float transition;
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			GLuint vs,fs;
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			GLuint line_prog;
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			GLuint idmap;
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			GLuint vertex_buffername;
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			GLuint colors_buffername;
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			GLuint line_id_attrib;
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			GLuint line_vertex_pos;
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			GLuint line_disp_attrib;
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			GLuint line_opp_attrib;
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			int triangles, quads;
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		public:
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			CGLA::Vec3uc id_get(unsigned int i)
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			{
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				i = i+1;
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				return CGLA::Vec3uc(i&0xff, (i&0xff00)/256, (i&0xff0000)/65536);
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			}
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			IDBufferWireframeRenderer(int _XSZ, int _YSZ,
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							  HMesh::Manifold& mesh,
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							  float _thickness=0.0,
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							  float _transition=1.8,
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							  int atten_mode=0);
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			~IDBufferWireframeRenderer();
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			void draw(const CGLA::Vec3f& color,
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					const CGLA::Vec3f& clear_color);
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		};
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}
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#endif