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38 lines
929 B
38 lines
929 B
#ifndef GFXGLTOOLS_INCLUDED // -*- C++ -*-
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#define GFXGLTOOLS_INCLUDED
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#if !defined(__GNUC__)
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# pragma once
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#endif
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/************************************************************************
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Handy functions for common OpenGL tasks
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$Id: gltools.h 445 2005-06-18 02:40:45Z garland $
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************************************************************************/
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#include "gl.h"
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#include "vec3.h"
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namespace gfx
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{
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extern GLuint opengl_pick_nil;
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extern GLuint opengl_pick_zmax;
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extern void begin_opengl_pick(int *ctr, double radius, GLuint *buf, int size);
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extern GLuint complete_opengl_pick(GLuint *buffer);
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extern void check_opengl_errors(const char *msg=NULL);
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extern void camera_lookat(const Vec3& min, const Vec3& max, double aspect);
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extern void ortho_camera_lookat(const Vec3& min, const Vec3& max,double aspect);
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extern int unproject_pixel(int *pixel, double *world, double z=0.0);
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}
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// GFXGLTOOLS_INCLUDED
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#endif
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