78 lines
2.2 KiB
C
78 lines
2.2 KiB
C
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// This file is part of libigl, a simple c++ geometry processing library.
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//
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// Copyright (C) 2015 Alec Jacobson <alecjacobson@gmail.com>
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//
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// This Source Code Form is subject to the terms of the Mozilla Public License
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// v. 2.0. If a copy of the MPL was not distributed with this file, You can
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// obtain one at http://mozilla.org/MPL/2.0/.
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#ifndef IGL_OPENGL_INIT_RENDER_TO_TEXTURE_H
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#define IGL_OPENGL_INIT_RENDER_TO_TEXTURE_H
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#include "../igl_inline.h"
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#include "gl.h"
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#include <cstdlib>
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namespace igl
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{
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namespace opengl
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{
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// Create a frame buffer that renders color to a RGBA texture a depth to a
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// "render buffer".
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//
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// After calling this, you can use with something like:
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//
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// glBindFramebuffer(GL_FRAMEBUFFER, fbo_id);
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// if(!depth_texture)
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// {
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// glBindRenderbuffer(GL_RENDERBUFFER, d_id);
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// }
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// //
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// // draw scene ...
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// //
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// // clean up
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// glBindFramebuffer(GL_FRAMEBUFFER,0);
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// if(!depth_texture)
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// {
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// glBindRenderbuffer(GL_RENDERBUFFER, 0);
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// }
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// // Later ...
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// glActiveTexture(GL_TEXTURE0+0);
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// glBindTexture(GL_TEXTURE_2D,tex_id);
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// if(depth_texture)
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// {
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// glActiveTexture(GL_TEXTURE0+1);
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// glBindTexture(GL_TEXTURE_2D,d_id);
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// }
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// // draw textures
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//
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//
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//
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// Inputs:
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// width image width
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// height image height
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// depth_texture whether to create a texture for depth or to create a
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// render buffer for depth
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// Outputs:
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// tex_id id of the texture
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// fbo_id id of the frame buffer object
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// d_id id of the depth texture or frame buffer object
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//
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IGL_INLINE void init_render_to_texture(
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const size_t width,
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const size_t height,
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const bool depth_texture,
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GLuint & tex_id,
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GLuint & fbo_id,
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GLuint & d_id);
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// Wrapper with depth_texture = false for legacy reasons
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IGL_INLINE void init_render_to_texture(
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const size_t width,
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const size_t height,
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GLuint & tex_id,
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GLuint & fbo_id,
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GLuint & dfbo_id);
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}
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}
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#ifndef IGL_STATIC_LIBRARY
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# include "init_render_to_texture.cpp"
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#endif
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#endif
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