allemang.d/toddcox-visualize
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duplicate scene from polytopia

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allem
2020-01-11 22:13:41 -05:00
parent 214f54fe89
commit 437dae0205
5 changed files with 63 additions and 9 deletions
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58
vis/src/main.cpp
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@@ -17,6 +17,27 @@ __attribute__((unused)) __declspec(dllexport) int NvOptimusEnablement = 0x000000
}
#endif
std::vector<int> edge_inds(const tc::Group &group, const tc::Cosets &map, const int gen) {
const tc::SubGroup &eg = group.subgroup({gen});
const tc::Cosets &root = eg.solve({});
size_t N = root.size();
auto edges = root.path.walk<int, int>(0, eg.gen_map, [map](int a, int gen) {
return map.get(a, gen);
});
const tc::Cosets &tile = group.solve({gen});
edges.resize(N * tile.size());
for (size_t i = 0; i < tile.size(); ++i) {
auto act = tile.path.get(i);
for (size_t j = 0; j < N; ++j) {
edges[i * N + j] = map.get(edges[act.from_idx * N + j], act.gen);
}
}
return edges;
}
int main(int argc, char *argv[]) {
//region init window
@@ -47,8 +68,10 @@ int main(int argc, char *argv[]) {
GLuint pgm;
try {
GLuint vs = utilCompileFiles(GL_VERTEX_SHADER, {"shaders/ortho.vs.glsl"});
GLuint fs = utilCompileFiles(GL_FRAGMENT_SHADER, {"shaders/w-axis-hue.fs.glsl"});
// GLuint vs = utilCompileFiles(GL_VERTEX_SHADER, {"shaders/ortho.vs.glsl"});
GLuint vs = utilCompileFiles(GL_VERTEX_SHADER, {"shaders/stereo.vs.glsl"});
GLuint fs = utilCompileFiles(GL_FRAGMENT_SHADER, {"shaders/one-color.fs.glsl"});
// GLuint fs = utilCompileFiles(GL_FRAGMENT_SHADER, {"shaders/w-axis-hue.fs.glsl"});
pgm = utilLinkProgram({vs, fs});
} catch (const gl_error &e) {
@@ -57,12 +80,13 @@ int main(int argc, char *argv[]) {
exit(EXIT_FAILURE);
}
auto group = tc::schlafli({5, 3, 3});
auto group = tc::group::H(4);
auto res = group.solve();
auto mirrors = mirror(group);
auto corners = plane_intersections(mirrors);
auto start = barycentric(corners, {1.00, 1.00, 1.00, 1.00});
// auto start = barycentric(corners, {1.00f, 1.00f, 1.00f, 1.00f});
auto start = barycentric(corners, {0.05, 0.05, 1.00, 3.00});
auto points = res.path.walk<glm::vec4, glm::vec4>(start, mirrors, reflect);
GLuint vbo;
@@ -73,6 +97,21 @@ int main(int argc, char *argv[]) {
glEnableVertexAttribArray(0);
glVertexAttribPointer(0, 4, GL_FLOAT, false, 0, nullptr);
std::vector<int> edge_count;
std::vector<GLuint> edge_ibo;
for (int i = 0; i < group.ngens; ++i) {
const auto data = edge_inds(group, res, i);
edge_count.push_back(data.size());
GLuint ibo;
glGenBuffers(1, &ibo);
glBindBuffer(GL_ARRAY_BUFFER, ibo);
glBufferData(GL_ARRAY_BUFFER, sizeof(int) * data.size(), &data[0], GL_STATIC_DRAW);
edge_ibo.push_back(ibo);
}
glBindBuffer(GL_ARRAY_BUFFER, 0);
while (!glfwWindowShouldClose(window)) {
int width, height;
glfwGetFramebufferSize(window, &width, &height);
@@ -92,7 +131,7 @@ int main(int argc, char *argv[]) {
glm::mat4 proj = glm::ortho(-pwidth, pwidth, -pheight, pheight, -100.0f, 100.0f);
glUniformMatrix4fv(0, 1, false, glm::value_ptr(proj));
auto t = (float) glfwGetTime() / 5;
auto t = (float) glfwGetTime() / 10;
auto view = glm::identity<glm::mat4>();
view *= utilRotate(0, 1, t * 0.7f);
view *= utilRotate(0, 2, t * 0.8f);
@@ -106,6 +145,15 @@ int main(int argc, char *argv[]) {
glUniform3f(2, 1.0f, 1.0f, 1.0f);
glDrawArrays(GL_POINTS, 0, points.size());
glUniform3f(2, 1.0f, 1.0f, 1.0f);
for (int i = 0; i < group.ngens; ++i) {
auto ibo = edge_ibo[i];
auto count = edge_count[i];
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, ibo);
glDrawElements(GL_LINES, count, GL_UNSIGNED_INT, nullptr);
}
glfwSwapBuffers(window);
glfwPollEvents();