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>
105 lines
3.1 KiB
C++
Executable File
105 lines
3.1 KiB
C++
Executable File
#include <igl/readOFF.h>
|
|
#include <igl/opengl/glfw/Viewer.h>
|
|
#include <igl/opengl/glfw/imgui/ImGuiMenu.h>
|
|
#include <igl/opengl/glfw/imgui/ImGuiHelpers.h>
|
|
#include <imgui/imgui.h>
|
|
#include <iostream>
|
|
#include "tutorial_shared_path.h"
|
|
|
|
int main(int argc, char *argv[])
|
|
{
|
|
Eigen::MatrixXd V;
|
|
Eigen::MatrixXi F;
|
|
|
|
// Load a mesh in OFF format
|
|
igl::readOFF(TUTORIAL_SHARED_PATH "/bunny.off", V, F);
|
|
|
|
// Init the viewer
|
|
igl::opengl::glfw::Viewer viewer;
|
|
|
|
// Attach a menu plugin
|
|
igl::opengl::glfw::imgui::ImGuiMenu menu;
|
|
viewer.plugins.push_back(&menu);
|
|
|
|
// Customize the menu
|
|
double doubleVariable = 0.1f; // Shared between two menus
|
|
|
|
// Add content to the default menu window
|
|
menu.callback_draw_viewer_menu = [&]()
|
|
{
|
|
// Draw parent menu content
|
|
menu.draw_viewer_menu();
|
|
|
|
// Add new group
|
|
if (ImGui::CollapsingHeader("New Group", ImGuiTreeNodeFlags_DefaultOpen))
|
|
{
|
|
// Expose variable directly ...
|
|
ImGui::InputDouble("double", &doubleVariable, 0, 0, "%.4f");
|
|
|
|
// ... or using a custom callback
|
|
static bool boolVariable = true;
|
|
if (ImGui::Checkbox("bool", &boolVariable))
|
|
{
|
|
// do something
|
|
std::cout << "boolVariable: " << std::boolalpha << boolVariable << std::endl;
|
|
}
|
|
|
|
// Expose an enumeration type
|
|
enum Orientation { Up=0, Down, Left, Right };
|
|
static Orientation dir = Up;
|
|
ImGui::Combo("Direction", (int *)(&dir), "Up\0Down\0Left\0Right\0\0");
|
|
|
|
// We can also use a std::vector<std::string> defined dynamically
|
|
static int num_choices = 3;
|
|
static std::vector<std::string> choices;
|
|
static int idx_choice = 0;
|
|
if (ImGui::InputInt("Num letters", &num_choices))
|
|
{
|
|
num_choices = std::max(1, std::min(26, num_choices));
|
|
}
|
|
if (num_choices != (int) choices.size())
|
|
{
|
|
choices.resize(num_choices);
|
|
for (int i = 0; i < num_choices; ++i)
|
|
choices[i] = std::string(1, 'A' + i);
|
|
if (idx_choice >= num_choices)
|
|
idx_choice = num_choices - 1;
|
|
}
|
|
ImGui::Combo("Letter", &idx_choice, choices);
|
|
|
|
// Add a button
|
|
if (ImGui::Button("Print Hello", ImVec2(-1,0)))
|
|
{
|
|
std::cout << "Hello\n";
|
|
}
|
|
}
|
|
};
|
|
|
|
// Draw additional windows
|
|
menu.callback_draw_custom_window = [&]()
|
|
{
|
|
// Define next window position + size
|
|
ImGui::SetNextWindowPos(ImVec2(180.f * menu.menu_scaling(), 10), ImGuiCond_FirstUseEver);
|
|
ImGui::SetNextWindowSize(ImVec2(200, 160), ImGuiCond_FirstUseEver);
|
|
ImGui::Begin(
|
|
"New Window", nullptr,
|
|
ImGuiWindowFlags_NoSavedSettings
|
|
);
|
|
|
|
// Expose the same variable directly ...
|
|
ImGui::PushItemWidth(-80);
|
|
ImGui::DragScalar("double", ImGuiDataType_Double, &doubleVariable, 0.1, 0, 0, "%.4f");
|
|
ImGui::PopItemWidth();
|
|
|
|
static std::string str = "bunny";
|
|
ImGui::InputText("Name", str);
|
|
|
|
ImGui::End();
|
|
};
|
|
|
|
// Plot the mesh
|
|
viewer.data().set_mesh(V, F);
|
|
viewer.data().add_label(viewer.data().V.row(0) + viewer.data().V_normals.row(0).normalized()*0.005, "Hello World!");
|
|
viewer.launch();
|
|
}
|