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95 lines
3.0 KiB
95 lines
3.0 KiB
1 year ago
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#include <igl/opengl/glfw/Viewer.h>
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#include <igl/read_triangle_mesh.h>
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#include <igl/get_seconds.h>
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#include <igl/sort_triangles.h>
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#include <igl/material_colors.h>
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#include <igl/copyleft/cgal/trim_with_solid.h>
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int main(int argc, char *argv[])
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{
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using namespace igl;
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IGL_TICTOC_LAMBDA;
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Eigen::MatrixXd VA, VB;
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Eigen::MatrixXi FA, FB;
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// Load a hot mess of a mesh
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igl::read_triangle_mesh(argc>1?argv[1]:TUTORIAL_SHARED_PATH "/truck.obj", VA, FA);
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// Load a solid mesh
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igl::read_triangle_mesh(argc>2?argv[2]:TUTORIAL_SHARED_PATH "/bunny.off", VB, FB);
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if(argc<2)
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{
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// resize bunny
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VB.rowwise() -= VB.colwise().mean();
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VB /= (VB.colwise().maxCoeff()-VB.colwise().minCoeff()).maxCoeff();
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VB *= 1.15;
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VB.rowwise() += VA.colwise().mean();
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}
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Eigen::VectorXi J;
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Eigen::MatrixXd VC;
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Eigen::MatrixXi FC;
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Eigen::Array<bool, Eigen::Dynamic, 1> D;
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using namespace igl::copyleft::cgal;
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tictoc();
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// More patches, less intersection handling
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igl::copyleft::cgal::trim_with_solid(VA, FA, VB, FB, CHECK_EACH_PATCH, VC, FC, D, J);
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printf("CHECK_EACH_PATCH: %g secs, |FC| = %d, |D| = %d\n", tictoc(),FC.rows(),D.count());
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// More intersection handling, fewer patches
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igl::copyleft::cgal::trim_with_solid(VA, FA, VB, FB, RESOLVE_BOTH_AND_RESTORE_THEN_CHECK_EACH_PATCH, VC, FC, D, J);
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printf("RESOLVE_BOTH_...: %g secs, |FC| = %d, |D| = %d\n", tictoc(),FC.rows(),D.count());
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igl::opengl::glfw::Viewer vr;
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vr.data().set_mesh(VC, FC);
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// Turn on double sided lighting
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vr.data().double_sided = true;
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vr.data().set_face_based(true);
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vr.data().set_data(D.cast<double>());
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Eigen::MatrixXd CM = (Eigen::MatrixXd(2,3)<<
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1,1,1,
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GOLD_DIFFUSE[0],GOLD_DIFFUSE[1],GOLD_DIFFUSE[2]
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).finished();
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vr.data().set_colormap(CM);
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vr.append_mesh();
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vr.data().set_mesh(VB, FB);
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vr.data().show_lines = false;
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// Make a semi-transparent orange matcap
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{
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Eigen::Matrix<unsigned char,Eigen::Dynamic,Eigen::Dynamic>
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R(256,256), G(256,256), B(256,256), A(256,256);
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for(int i = 0;i<R.rows();i++)
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{
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for(int j = 0;j<R.cols();j++)
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{
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R(i,j) = 255;
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G(i,j) = 110;
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B(i,j) = 20;
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// distance to middle of image
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const double x = (i+0.5-R.rows()/2.0)/(R.rows()/2.0);
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const double y = (j+0.5-R.cols()/2.0)/(R.cols()/2.0);
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const double r = std::min(1.0,sqrt(x*x+y*y));
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A(i,j) = 255*(1-sqrt(1-r*r));
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}
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}
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vr.data().set_texture(R,G,B,A);
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}
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vr.data().use_matcap = true;
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// On mouse up resort for better transparency
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vr.callback_mouse_up =
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[&](igl::opengl::glfw::Viewer &, int button, int mod)
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{
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Eigen::VectorXi _;
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igl::sort_triangles(
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VB,Eigen::MatrixXi(FB), vr.core().view, vr.core().proj,FB,_);
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vr.data_list[1].set_mesh(VB, FB);
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return false;
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};
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// set first mesh as selected
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vr.selected_data_index = 0;
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vr.launch_init();
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vr.core().draw(vr.data(),true);
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vr.callback_mouse_up(vr,0,0);
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vr.launch_rendering(true);
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vr.launch_shut();
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}
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