b0fd49d598
* Start CMake refactoring. * WIP on instlal(). * Handle install + hunter setup. * Handle module options + igl_include helper. * Build all tutorials again. * Update CMake for unit tests. * Update triangle lib. * Update Hunter integration. * Fix for header-only mode. * Fix Windows compilation + add GMP/MPFR find_package + set VS folders. * Fix CGAL build. * Add copy dll for Windows + improve find gmp/mpfr. * Update Github Actions. * Update README. * Fixes for CMake 3.18 * Fix include option. * Rename libigl_imgui_front to avoid conflicts. * Fix when disabling unit tests. * Build imguizmo with C++11. * Update CMake option comments. * Rename nonfree -> restricted. * Update triangle and tetgen versions. * Fix compilation issue. * Update continuous.yml * remove cork * finding matlab with default * mosek module compiles; default detected; osx dylib hack * Reduce build parallelism. * Fix find GMP/MPFR on Windows + cleanup CGAL changes. * Update readme. Co-authored-by: Alec Jacobson <alecjacobson@adobe.com> Co-authored-by: Alec Jacobson <alecjacobson@gmail.com>
69 lines
1.9 KiB
C++
69 lines
1.9 KiB
C++
#include <igl/gaussian_curvature.h>
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#include <igl/massmatrix.h>
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#include <igl/invert_diag.h>
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#include <igl/read_triangle_mesh.h>
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#include <igl/png/writePNG.h>
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#include <igl/PI.h>
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#include <Eigen/Geometry>
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// embree
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#include <igl/embree/EmbreeRenderer.h>
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#include <iostream>
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int main(int argc, char *argv[])
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{
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int width=640;
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int height=480;
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Eigen::MatrixXd V;
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Eigen::MatrixXi F;
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const char *mesh_file=argc > 1 ? argv[1] : TUTORIAL_SHARED_PATH "/fertility.off";
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const char *png_file=argc > 2 ? argv[2]: "fertility_curvature.png";
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// Load mesh
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igl::read_triangle_mesh(mesh_file, V,F);
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Eigen::VectorXd K;
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// Compute integral of Gaussian curvature
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igl::gaussian_curvature(V,F,K);
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// Compute mass matrix
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Eigen::SparseMatrix<double> M,Minv;
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igl::massmatrix(V,F,igl::MASSMATRIX_TYPE_DEFAULT,M);
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igl::invert_diag(M,Minv);
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// Divide by area to get integral average
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K = (Minv*K).eval();
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// embree object
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igl::embree::EmbreeRenderer er;
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er.set_mesh(V,F,true);
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//er.set_uniform_color(Eigen::RowVector3d(0.3,0.3,0.3));
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er.set_data(K,igl::COLOR_MAP_TYPE_JET);
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Eigen::Matrix3d rot_matrix;
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// specify rotation
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rot_matrix = Eigen::AngleAxisd( 10*igl::PI/180.0, Eigen::Vector3d::UnitX())
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* Eigen::AngleAxisd( 5*igl::PI/180.0, Eigen::Vector3d::UnitY())
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* Eigen::AngleAxisd( 4*igl::PI/180.0, Eigen::Vector3d::UnitZ());
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er.set_rot(rot_matrix);
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er.set_zoom(1.5);
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er.set_orthographic(false);
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Eigen::Matrix<unsigned char,Eigen::Dynamic,Eigen::Dynamic> R(width, height);
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Eigen::Matrix<unsigned char,Eigen::Dynamic,Eigen::Dynamic> G(width, height);
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Eigen::Matrix<unsigned char,Eigen::Dynamic,Eigen::Dynamic> B(width, height);
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Eigen::Matrix<unsigned char,Eigen::Dynamic,Eigen::Dynamic> A(width, height);
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// render view using embree
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er.render_buffer(R,G,B,A);
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std::cout<<"Rendered scene saved to "<<png_file<<std::endl;
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// save to PNG file
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igl::png::writePNG(R,G,B,A,png_file);
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return 0;
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}
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