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new solver - point generation

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This commit is contained in:
David Allemang
2022-10-09 23:50:36 -04:00
parent f740fb26c6
commit eee87cc9c4
21 changed files with 216 additions and 471 deletions
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212
vis/src/main.cpp
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@@ -3,28 +3,193 @@
#include <imgui.h>
#include <backends/imgui_impl_glfw.h>
#include <backends/imgui_impl_opengl3.h>
#include <fmt/core.h>
#include <iostream>
#include <fstream>
#include "debug.hpp"
#include <fmt/core.h>
#include <fmt/ranges.h>
int run(GLFWwindow *window, ImGuiContext *ctx) {
glClearColor(0.1, 0.1, 0.9, 1.0);
#include <gl/debug.hpp>
#include <gl/buffer.hpp>
#include <gl/shader.hpp>
#include <gl/vertexarray.hpp>
#include <tc/groups.hpp>
#include <tc/core.hpp>
#include <geo/mirror.hpp>
struct State {
Eigen::Vector4f bg{0.169f, 0.169f, 0.169f, 1.00f};
Eigen::Vector4f fg{0.71f, 0.53f, 0.94f, 1.00f};
Eigen::Vector4f wf{0.95f, 0.95f, 0.95f, 1.00f};
Eigen::Vector4f R{1.00f, 0.00f, 0.00f, 1.00f};
Eigen::Vector4f G{0.00f, 1.00f, 0.00f, 1.00f};
Eigen::Vector4f B{0.00f, 0.00f, 1.00f, 1.00f};
Eigen::Vector4f Y{1.20f, 1.20f, 0.00f, 1.00f};
Eigen::Matrix4f rot = Eigen::Matrix4f::Identity();
bool color_axes = false;
};
Eigen::Matrix4f rotor(int u, int v, float rad) {
Eigen::Matrix4f res = Eigen::Matrix4f::Identity();
res(u, u) = res(v, v) = cosf(rad);
res(u, v) = res(v, u) = sinf(rad);
res(u, v) *= -1;
return res;
}
template<typename T_>
T_ mix(const T_ &a, const T_ &b, const typename T_::Scalar &x) {
return a * (1 - x) + b * x;
}
void show_overlay(State &state) {
static std::string gl_vendor = (const char *) glGetString(GL_VENDOR);
static std::string gl_renderer = (const char *) glGetString(GL_RENDERER);
static std::string gl_version = (const char *) glGetString(GL_VERSION);
static std::string glsl_version = (const char *) glGetString(GL_SHADING_LANGUAGE_VERSION);
ImGuiWindowFlags window_flags =
ImGuiWindowFlags_AlwaysAutoResize |
ImGuiWindowFlags_NoSavedSettings |
ImGuiWindowFlags_NoFocusOnAppearing |
ImGuiWindowFlags_NoNav |
ImGuiWindowFlags_NoBringToFrontOnFocus |
ImGuiWindowFlags_NoMove;
ImGuiStyle &style = ImGui::GetStyle();
const auto PAD = style.DisplaySafeAreaPadding;
auto window_pos = PAD;
ImGui::SetNextWindowPos(window_pos, ImGuiCond_Always);
ImGui::SetNextWindowBgAlpha(0.35f * style.Alpha);
ImGui::SetNextWindowCollapsed(true, ImGuiCond_Appearing);
ImGui::Begin("Graphics Information", nullptr, window_flags);
ImGui::Text("GL Vendor | %s", gl_vendor.c_str());
ImGui::Text("GL Renderer | %s", gl_renderer.c_str());
ImGui::Text("GL Version | %s", gl_version.c_str());
ImGui::Text("GLSL Version | %s", glsl_version.c_str());
auto v2 = ImGui::GetWindowSize();
window_pos.y += v2.y + PAD.y;
ImGui::End();
ImGui::SetNextWindowPos(window_pos, ImGuiCond_Always);
ImGui::SetNextWindowBgAlpha(0.35f * style.Alpha);
ImGui::Begin("Controls", nullptr, window_flags);
ImGuiIO &io = ImGui::GetIO();
ImGui::Text("FPS | %.2f", io.Framerate);
ImGui::Separator();
ImGui::ColorEdit3("Background", state.bg.data(), ImGuiColorEditFlags_Float);
ImGui::ColorEdit3("Foreground", state.fg.data(), ImGuiColorEditFlags_Float);
ImGui::ColorEdit3("Wireframe", state.wf.data(), ImGuiColorEditFlags_Float);
ImGui::Checkbox("Show RGBY axis colors", &state.color_axes);
if (io.MouseDown[0] && !io.WantCaptureMouse) {
Eigen::Matrix4f rot = Eigen::Matrix4f::Identity();
Eigen::Vector2f del{io.MouseDelta.x, io.MouseDelta.y};
del /= 200.0f;
if (io.KeyShift) {
del /= 5.0f;
}
if (io.KeyCtrl) {
Eigen::Matrix4f rx = rotor(0, 3, -del.x());
Eigen::Matrix4f ry = rotor(1, 3, del.y());
rot = rx * ry;
} else {
Eigen::Matrix4f rx = rotor(0, 2, -del.x());
Eigen::Matrix4f ry = rotor(1, 2, del.y());
rot = rx * ry;
}
state.rot = rot * state.rot;
}
ImGui::End();
}
void set_style() {
ImGui::StyleColorsDark();
ImGuiStyle &style = ImGui::GetStyle();
style.WindowRounding = 4;
style.FrameRounding = 2;
style.DisplaySafeAreaPadding.x = 10;
style.DisplaySafeAreaPadding.y = 10;
}
int run(GLFWwindow *window, ImGuiContext *context) {
State state;
// Buffer<GLuint> ind_buf;
Buffer<Eigen::Vector4f> vert_buf;
VertexArray<Eigen::Vector4f> vao(vert_buf);
// glVertexArrayElementBuffer(vao, ind_buf);
tc::Group group = tc::coxeter("3 4 3");
auto cosets = solve(group, {}, 1000000);
vec4 coords {1, 1, 1, 1};
auto mirrors = mirror<4>(group);
auto corners = plane_intersections(mirrors);
auto start = barycentric(corners, coords);
start.normalize();
auto points = cosets.path.walk<vec4, vec4>(start, mirrors, reflect<vec4>);
vert_buf.upload(points);
VertexShader vs(std::ifstream("res/shaders/main.vert.glsl"));
FragmentShader fs(std::ifstream("res/shaders/main.frag.glsl"));
Program pgm(vs, fs);
glEnable(GL_DEPTH_TEST);
glPointSize(2);
Eigen::Projective3f proj;
while (!glfwWindowShouldClose(window)) {
glfwPollEvents();
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
ImGui_ImplOpenGL3_NewFrame();
ImGui_ImplGlfw_NewFrame();
ImGui::NewFrame();
ImGui::Begin("Hello There!", nullptr, ImGuiWindowFlags_None);
ImGui::Text("General Kenobi.");
ImGui::End();
show_overlay(state);
ImGui::Render();
int display_w, display_h;
glfwGetFramebufferSize(window, &display_w, &display_h);
glViewport(0, 0, display_w, display_h);
glClearColor(state.bg[0], state.bg[1], state.bg[2], state.bg[3]);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
auto aspect = (float) display_h / (float) display_w;
proj = Eigen::AlignedScaling3f(aspect, 1.0, -0.6);
glUseProgram(pgm);
glBindVertexArray(vao);
glUniform4fv(0, 1, state.fg.data());
glUniform1f(1, (GLfloat) glfwGetTime());
glUniformMatrix4fv(2, 1, false, proj.data());
glUniformMatrix4fv(3, 1, false, state.rot.data());
glDrawArrays(GL_POINTS, 0, points.size());
glBindVertexArray(0);
glUseProgram(0);
ImGui_ImplOpenGL3_RenderDrawData(ImGui::GetDrawData());
glfwSwapBuffers(window);
}
@@ -34,21 +199,16 @@ int run(GLFWwindow *window, ImGuiContext *ctx) {
int main() {
if (!glfwInit()) {
fmt::print(stderr, "GLFW : Failed Initialization\n");
std::cerr << "GLFW:Failed initialization" << std::endl;
return EXIT_FAILURE;
}
glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 4);
glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 6);
glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
GLFWwindow *window = glfwCreateWindow(
1280, 720,
"Cosets Visualization",
nullptr, nullptr
);
auto *window = glfwCreateWindow(1280, 720, "Cosets Visualization", nullptr, nullptr);
if (!window) {
fmt::print("GLFW : Failed to create window.\n");
std::cerr << "GLFW:Failed to create window" << std::endl;
return EXIT_FAILURE;
}
@@ -67,17 +227,19 @@ int main() {
#endif
IMGUI_CHECKVERSION();
ImGuiContext *ctx = ImGui::CreateContext();
auto *context = ImGui::CreateContext();
ImGui_ImplGlfw_InitForOpenGL(window, true);
ImGui_ImplOpenGL3_Init("#version 130");
int code = EXIT_SUCCESS;
set_style();
int exit_code = EXIT_SUCCESS;
try {
code = run(window, ctx);
} catch (const std::exception &ex) {
fmt::print(stderr, "{}\n", ex.what());
code = EXIT_FAILURE;
exit_code = run(window, context);
} catch (const std::exception &e) {
std::cerr << e.what() << std::endl;
exit_code = EXIT_FAILURE;
}
ImGui_ImplOpenGL3_Shutdown();
@@ -87,5 +249,5 @@ int main() {
glfwDestroyWindow(window);
glfwTerminate();
return code;
return exit_code;
}