fix bug and add test code

FinalProject/renderable.cpp

@@ -2,7 +2,7 @@
 
 #include "renderable.h"
 
-// 极值点一定在model包围盒的顶点出取到
+// 极值点一定在model包围盒的顶点处取到
 
 Renderable::Renderable(Model* model) : _model(model) {}
 
@@ -40,16 +40,17 @@ void Renderable::render(ShaderProgram shader) {
 }
 
 // check here to get global boundary
+// must check before get boundary
 void Renderable::check_boundary() {
-    std::vector<glm::vec3> temp = { _lower_bound,_upper_bound };
+    std::vector<glm::vec3> temp = {_model->get_upper_bound(),_model->get_lower_bound()};
     _lower_bound = glm::vec3(3e36, 3e36, 3e36);
     _upper_bound = -_lower_bound;
     auto model = this->modelMatrix();// 变换矩阵
     // 位运算 从000到111的每一种组合
-    for (int i = 0; i < 7; i++) {
+    for (int i = 0; i < 8; i++) {
         //遍历每一个顶点
-        glm::vec4 vex = glm::vec4(temp[i & 4][0], temp[i & 2][1], temp[i & 1][2],1.0f);
+        glm::vec4 vx = glm::vec4(temp[(i & 4) >> 2][0], temp[(i & 2)>>1][1], temp[i & 1][2], 1.0f);
-        vex = model * vex; // 经过变化之后的点的坐标
+        auto vex = model * vx; // 经过变化之后的点的坐标
         for (int j = 0; j < 3; j++) {
             _lower_bound[j] = _lower_bound[j] < vex[j] ? _lower_bound[j] : vex[j];
             _upper_bound[j] = _upper_bound[j] > vex[j] ? _upper_bound[j] : vex[j];

FinalProject/renderable.h

@@ -30,6 +30,9 @@ public:
 
     inline glm::mat4 modelMatrix() const;
 
+    inline glm::vec3 get_upper_boundary()const;
+    inline glm::vec3 get_lower_boundary()const;
+
 public:
     void render(ShaderProgram shader);
     // check here to get global boundary
@@ -39,7 +42,18 @@ public:
 inline glm::mat4 Renderable::modelMatrix() const {
     glm::mat4 model = glm::mat4(1.0f);
     model = glm::translate(model, _position);
+    // 左乘与右乘应该是不一样的，但是这里的表现相同
     model = model * _rotation;
+    //model = _rotation * model;
     model = glm::scale(model, _scale);
     return model;
+
+
 }
+
+inline glm::vec3 Renderable::get_lower_boundary()const {
+    return _lower_bound;
+}
+inline glm::vec3 Renderable::get_upper_boundary()const {
+    return _upper_bound;
+}

FinalProject/sceneviewer.cpp

@@ -86,6 +86,12 @@ void SceneViewer::initializeGL() {
     Renderable renderable(backpackModel);
     _objects.push_back(backpackModel);
     
+    //renderable.scale(1);
+    //renderable.rotate(glm::vec3(1, 0, 0), 2);
+    //renderable.check_boundary();
+    //auto t1 = renderable.get_lower_boundary();
+    //auto t2 = renderable.get_upper_boundary();
+
     _camera.setPosition(glm::vec3(0.0f, 15.0f, 8.0f));
     _camera.setYaw(-90.0f);
     _camera.setPitch(-30.0f);