allemang.d/toddcox-visualize
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Add toggle for colored XYZW axes

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This commit is contained in:
David Allemang
2022-02-16 17:13:32 -05:00
parent d3dad55801
commit 669d04845d
1 changed files with 36 additions and 2 deletions
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38
src/main.cpp
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@@ -12,11 +12,18 @@
#include <ml/meshlib_json.hpp>
struct State {
Eigen::Vector4f bg{0.45f, 0.55f, 0.60f, 1.00f};
Eigen::Vector4f bg{0.07f, 0.09f, 0.10f, 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) {
@@ -27,6 +34,11 @@ Eigen::Matrix4f rotor(int u, int v, float rad) {
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);
@@ -71,6 +83,8 @@ void show_overlay(State &state) {
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};
@@ -283,11 +297,31 @@ int run(GLFWwindow *window, ImGuiContext *context) {
glUseProgram(wire_pgm);
glBindVertexArray(wire_vao);
glUniform4fv(0, 1, state.fg);
glUniform4fv(0, 1, state.wf.data());
glUniform1f(1, (GLfloat) glfwGetTime());
glUniformMatrix4fv(2, 1, false, proj.data());
glUniformMatrix4fv(3, 1, false, state.rot.data());
if (state.color_axes) {
auto factor = 0.7f;
auto x = mix(state.wf, state.R, factor);
auto y = mix(state.wf, state.G, factor);
auto z = mix(state.wf, state.B, factor);
auto w = mix(state.wf, state.Y, factor);
glUniform4fv(0, 1, x.data());
glDrawElementsBaseVertex(GL_LINES, 2, GL_UNSIGNED_INT, (void *) (sizeof(GLuint) * 0), 0);
glUniform4fv(0, 1, y.data());
glDrawElementsBaseVertex(GL_LINES, 2, GL_UNSIGNED_INT, (void *) (sizeof(GLuint) * 2), 0);
glUniform4fv(0, 1, z.data());
glDrawElementsBaseVertex(GL_LINES, 2, GL_UNSIGNED_INT, (void *) (sizeof(GLuint) * 8), 0);
glUniform4fv(0, 1, w.data());
glDrawElementsBaseVertex(GL_LINES, 2, GL_UNSIGNED_INT, (void *) (sizeof(GLuint) * 24), 0);
}
glUniform4fv(0, 1, state.wf.data());
glDrawElements(GL_LINES, (GLsizei) wire_dynamic.cells().size(), GL_UNSIGNED_INT, nullptr);
glBindVertexArray(0);
glUseProgram(0);