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https://github.com/SoftFever/OrcaSlicer.git
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2ae2672ee9
Fixing dep build script on Windows and removing some warnings. Use bundled igl by default. Not building with the dependency scripts if not explicitly stated. This way, it will stay in Fix the libigl patch to include C source files in header only mode.
46 lines
1.4 KiB
C++
46 lines
1.4 KiB
C++
// This file is part of libigl, a simple c++ geometry processing library.
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//
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// Copyright (C) 2013 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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#include "create_index_vbo.h"
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// http://www.songho.ca/opengl/gl_vbo.html#create
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IGL_INLINE void igl::opengl::create_index_vbo(
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const Eigen::MatrixXi & F,
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GLuint & F_vbo_id)
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{
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// Generate Buffers
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glGenBuffers(1,&F_vbo_id);
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// Bind Buffers
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glBindBuffer(GL_ELEMENT_ARRAY_BUFFER,F_vbo_id);
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// Copy data to buffers
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// We expect a matrix with each vertex position on a row, we then want to
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// pass this data to OpenGL reading across rows (row-major)
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if(F.Options & Eigen::RowMajor)
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{
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glBufferData(
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GL_ELEMENT_ARRAY_BUFFER,
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sizeof(int)*F.size(),
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F.data(),
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GL_STATIC_DRAW);
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}else
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{
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// Create temporary copy of transpose
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Eigen::MatrixXi FT = F.transpose();
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// If its column major then we need to temporarily store a transpose
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glBufferData(
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GL_ELEMENT_ARRAY_BUFFER,
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sizeof(int)*F.size(),
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FT.data(),
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GL_STATIC_DRAW);
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}
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// bind with 0, so, switch back to normal pointer operation
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glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
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}
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#ifdef IGL_STATIC_LIBRARY
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// Explicit template instantiation
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#endif
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