Function DrawControlledFace

Source/Editors/map_editor.cpp:667–776

}

static void DrawControlledFace(const Box& box_, const Object* object_, int face_selected_, FaceDisplay face_display_) {
    PROFILER_GPU_ZONE(g_profiler_ctx, "DrawControlledFace");

    mat4 translate_mat;
    translate_mat.SetTranslation(box_.center);
    mat4 model_mat = object_->GetTransform() * translate_mat;

    static const GLfloat vertices[] = {
        -0.5f, -0.5f, 0.5f, 0.5f, -0.5f, 0.5f, 0.5f, 0.5f, 0.5f, -0.5f, 0.5f, 0.5f,      // front (in coord system: +x to the right, +y up, -z into distance)
        -0.5f, -0.5f, -0.5f, 0.5f, -0.5f, -0.5f, 0.5f, 0.5f, -0.5f, -0.5f, 0.5f, -0.5f,  // back
        -0.5f, -0.5f, -0.5f, -0.5f, -0.5f, 0.5f, -0.5f, 0.5f, 0.5f, -0.5f, 0.5f, -0.5f,  // left
        0.5f, -0.5f, 0.5f, 0.5f, -0.5f, -0.5f, 0.5f, 0.5f, -0.5f, 0.5f, 0.5f, 0.5f,      // right
        -0.5f, -0.5f, -0.5f, 0.5f, -0.5f, -0.5f, 0.5f, -0.5f, 0.5f, -0.5f, -0.5f, 0.5f,  // bottom
        -0.5f, 0.5f, 0.5f, 0.5f, 0.5f, 0.5f, 0.5f, 0.5f, -0.5f, -0.5f, 0.5f, -0.5f       // top
    };
    static const GLuint faces[] = {
        0, 1, 2, 0, 2, 3, 5, 4, 7, 5, 7, 6, 8, 9, 10, 8, 10, 11,
        12, 13, 14, 12, 14, 15, 16, 17, 18, 16, 18, 19, 20, 21, 22, 20, 22, 23};

    static VBOContainer vertices_vbo;
    static VBOContainer faces_vbo;
    if (!vertices_vbo.valid()) {
        vertices_vbo.Fill(kVBOStatic | kVBOFloat, sizeof(vertices), (void*)vertices);
        faces_vbo.Fill(kVBOStatic | kVBOElement, sizeof(faces), (void*)faces);
    }

    Graphics* graphics = Graphics::Instance();

    GLState gl_state;
    gl_state.depth_test = true;
    gl_state.blend = true;
    gl_state.cull_face = false;
    gl_state.depth_write = false;
    graphics->setGLState(gl_state);
    graphics->setDepthFunc(GL_LEQUAL);

    mat4 scale_mat;
    scale_mat.SetScale(box_.dims);
    mat4 new_model_mat = model_mat * scale_mat;

    // Draw selected face
    if (face_selected_ != -1) {
        Shaders* shaders = Shaders::Instance();
        Camera* cam = ActiveCameras::Get();
        int shader_id = shaders->returnProgram("face_stipple");
        shaders->setProgram(shader_id);
        mat4 mvp_mat = cam->GetProjMatrix() * cam->GetViewMatrix() * new_model_mat;
        shaders->SetUniformMat4("mvp_mat", mvp_mat);
        shaders->SetUniformVec4("color", vec4(0.1f, 1.0f, 0.4f, 1.0f));
        int vert_coord_id = shaders->returnShaderAttrib("vert_coord", shader_id);
        vertices_vbo.Bind();
        faces_vbo.Bind();
        graphics->EnableVertexAttribArray(vert_coord_id);
        glVertexAttribPointer(vert_coord_id, 3, GL_FLOAT, false, 3 * sizeof(GLfloat), 0);
        graphics->DrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_INT, (const void*)(sizeof(GLuint) * (face_selected_ * 6)));
        graphics->ResetVertexAttribArrays();
        // Draw direction line for selected face
        if (face_display_.facing || face_display_.plane) {