michelleandJérémie Dumas
b8ee8b99cf
* This is the code that renders the letter a for each vertex on the mesh paired with a libigl-example-project * Code for rendering just the number 12 on the 12th vertex * Rendering vertices via glsl works, with geometry shader * Added dynamic font scaling so accomodate ortho and perspective projections. * Got faceids rendering * Code cleanup * This allows user to add custom text at some location rendered with the text shaders * Dedicated separate VBOs for face and vertid labels * Added in extra label rendering * Moved texture binding to its own function and other code cleanup * More conflict resolution when fetching upstream changes * Resolved the relative path to font atlas * Change scope variable for font atlas macro * Removed PNG texture loaded from disk, and encoded font atlas into byte array. Other minor changes for VBO iterators and removed uneeded dependencies from previous commits * Encapsulated text VBOs into struct to remove code duplication, and fixed bug for both overlay and text shaders being used at same time. * Remove whitespace * Tentative for Windows build fix not initializing TextGL structs in header * Removed uniform that only belongs for text labels * Added init and free methods for label buffers initialization and passing some args by reference on label methods * Compressed font atlas that is under 50kB reduced from 330kB with decompression function * Converting type from string literal to char array * Broke up string literal * Cleanup font atlas. * Linux compile fix. * Remove deprecated text pipeline. Co-authored-by: Jérémie Dumas <jeremie.dumas@ens-lyon.org>
82 lines
2.0 KiB
C++
Executable File
82 lines
2.0 KiB
C++
Executable File
#include <igl/readOFF.h>
|
|
#include <igl/opengl/glfw/Viewer.h>
|
|
#include <igl/opengl/glfw/imgui/ImGuiMenu.h>
|
|
#include <sstream>
|
|
#include "tutorial_shared_path.h"
|
|
|
|
Eigen::MatrixXd V;
|
|
Eigen::MatrixXi F;
|
|
|
|
int main(int argc, char *argv[])
|
|
{
|
|
// Load a mesh in OFF format
|
|
igl::readOFF(TUTORIAL_SHARED_PATH "/bunny.off", V, F);
|
|
|
|
// Find the bounding box
|
|
Eigen::Vector3d m = V.colwise().minCoeff();
|
|
Eigen::Vector3d M = V.colwise().maxCoeff();
|
|
|
|
// Corners of the bounding box
|
|
Eigen::MatrixXd V_box(8,3);
|
|
V_box <<
|
|
m(0), m(1), m(2),
|
|
M(0), m(1), m(2),
|
|
M(0), M(1), m(2),
|
|
m(0), M(1), m(2),
|
|
m(0), m(1), M(2),
|
|
M(0), m(1), M(2),
|
|
M(0), M(1), M(2),
|
|
m(0), M(1), M(2);
|
|
|
|
// Edges of the bounding box
|
|
Eigen::MatrixXi E_box(12,2);
|
|
E_box <<
|
|
0, 1,
|
|
1, 2,
|
|
2, 3,
|
|
3, 0,
|
|
4, 5,
|
|
5, 6,
|
|
6, 7,
|
|
7, 4,
|
|
0, 4,
|
|
1, 5,
|
|
2, 6,
|
|
7 ,3;
|
|
|
|
// Plot the mesh
|
|
igl::opengl::glfw::Viewer viewer;
|
|
viewer.data().set_mesh(V, F);
|
|
|
|
// Plot the corners of the bounding box as points
|
|
viewer.data().add_points(V_box,Eigen::RowVector3d(1,0,0));
|
|
|
|
// Plot the edges of the bounding box
|
|
for (unsigned i=0;i<E_box.rows(); ++i)
|
|
viewer.data().add_edges
|
|
(
|
|
V_box.row(E_box(i,0)),
|
|
V_box.row(E_box(i,1)),
|
|
Eigen::RowVector3d(1,0,0)
|
|
);
|
|
|
|
// Plot labels with the coordinates of bounding box vertices
|
|
std::stringstream l1;
|
|
l1 << m(0) << ", " << m(1) << ", " << m(2);
|
|
viewer.data().add_label(m+Eigen::Vector3d(-0.007, 0, 0),l1.str());
|
|
std::stringstream l2;
|
|
l2 << M(0) << ", " << M(1) << ", " << M(2);
|
|
viewer.data().add_label(M+Eigen::Vector3d(0.007, 0, 0),l2.str());
|
|
// activate label rendering
|
|
viewer.data().show_custom_labels = true;
|
|
|
|
// Rendering of text labels is handled by ImGui, so we need to enable the ImGui
|
|
// plugin to show text labels.
|
|
igl::opengl::glfw::imgui::ImGuiMenu menu;
|
|
menu.callback_draw_viewer_window = [](){};
|
|
viewer.plugins.push_back(&menu);
|
|
|
|
// Launch the viewer
|
|
viewer.launch();
|
|
}
|