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92 lines
2.0 KiB
92 lines
2.0 KiB
9 months ago
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#include <igl/arap.h>
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#include <igl/boundary_loop.h>
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#include <igl/harmonic.h>
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#include <igl/map_vertices_to_circle.h>
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#include <igl/readOFF.h>
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#include <igl/opengl/glfw/Viewer.h>
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Eigen::MatrixXd V;
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Eigen::MatrixXi F;
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Eigen::MatrixXd V_uv;
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Eigen::MatrixXd initial_guess;
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bool show_uv = false;
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bool key_down(igl::opengl::glfw::Viewer& viewer, unsigned char key, int modifier)
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{
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if (key == '1')
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show_uv = false;
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else if (key == '2')
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show_uv = true;
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if (key == 'q')
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V_uv = initial_guess;
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if (show_uv)
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{
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viewer.data().set_mesh(V_uv,F);
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viewer.core().align_camera_center(V_uv,F);
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}
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else
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{
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viewer.data().set_mesh(V,F);
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viewer.core().align_camera_center(V,F);
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}
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viewer.data().compute_normals();
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return false;
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}
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int main(int argc, char *argv[])
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{
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using namespace std;
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// Load a mesh in OFF format
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igl::readOFF(TUTORIAL_SHARED_PATH "/camelhead.off", V, F);
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// Compute the initial solution for ARAP (harmonic parametrization)
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Eigen::VectorXi bnd;
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igl::boundary_loop(F,bnd);
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Eigen::MatrixXd bnd_uv;
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igl::map_vertices_to_circle(V,bnd,bnd_uv);
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igl::harmonic(V,F,bnd,bnd_uv,1,initial_guess);
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// Add dynamic regularization to avoid to specify boundary conditions
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igl::ARAPData arap_data;
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arap_data.with_dynamics = true;
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Eigen::VectorXi b = Eigen::VectorXi::Zero(0);
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Eigen::MatrixXd bc = Eigen::MatrixXd::Zero(0,0);
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// Initialize ARAP
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arap_data.max_iter = 100;
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// 2 means that we're going to *solve* in 2d
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arap_precomputation(V,F,2,b,arap_data);
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// Solve arap using the harmonic map as initial guess
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V_uv = initial_guess;
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arap_solve(bc,arap_data,V_uv);
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// Scale UV to make the texture more clear
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V_uv *= 20;
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// Plot the mesh
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igl::opengl::glfw::Viewer viewer;
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viewer.data().set_mesh(V, F);
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viewer.data().set_uv(V_uv);
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viewer.callback_key_down = &key_down;
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// Disable wireframe
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viewer.data().show_lines = false;
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// Draw checkerboard texture
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viewer.data().show_texture = true;
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// Launch the viewer
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viewer.launch();
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}
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