refactor: clean up shader file headers and improve error messages

main.cpp

@@ -1,19 +1,16 @@
-// main.cpp
 #include <GL/glew.h>
 #include <GL/glut.h>
 #include <iostream>
 #include <vector>
-#include <cmath> // For sin, cos
+#include <cmath>
 
 // GLM Headers
 #define GLM_ENABLE_EXPERIMENTAL
 #include <glm/glm.hpp>
 #include <glm/gtc/matrix_transform.hpp>
 #include <glm/gtc/type_ptr.hpp>
-#include <glm/gtx/transform.hpp>
-#include <glm/gtc/constants.hpp> // 包含 glm::pi
 
-#include "shader_utils.hpp" // 我们创建的着色器加载工具
+#include "shader_utils.hpp" // 着色器加载工具
 
 // 窗口尺寸
 int windowWidth = 1024;
@@ -21,19 +18,18 @@ int windowHeight = 768;
 
 // 着色器程序ID
 GLuint programID;
-GLuint axesProgramID; // Shader program for axes
-// GLuint pickingProgramID; // (可选，如果实现拾取)
+GLuint axesProgramID;
+
 
 // Uniform ID
 GLuint MatrixID_MVP, MatrixID_M, MatrixID_V;
 GLuint LightPosID, LightColorID, LightPowerID, ViewPosID;
 GLuint TextureSamplerID;
-GLuint AxesMatrixID_MVP; // MVP uniform for axes shader
+GLuint AxesMatrixID_MVP;
 
 // VAO 和 VBO
 GLuint CubeVAO, CubeVBO_vertices, CubeVBO_normals, CubeVBO_uvs;
 GLuint AxesVAO, AxesVBO_vertices, AxesVBO_colors;
-// GLuint LightVAO; // 用于表示光源的球体 (使用 GLUT 绘制，可能不需要单独VAO)
 
 // 纹理
 GLuint checkerboardTextureID;
@@ -70,8 +66,8 @@ void mouseMotion(int x, int y);
 void idle();
 void createGradientTexture();
 void setupCubeBuffers();
-void setupAxesBuffers(); // Added
-void renderAxes(const glm::mat4& projectionMatrix, const glm::mat4& viewMatrix); // Added
+void setupAxesBuffers();
+void renderAxes(const glm::mat4& projectionMatrix, const glm::mat4& viewMatrix);
 void renderText(const char* text, float x, float y, float r = 1.0f, float g = 1.0f, float b = 1.0f);
 
 // 立方体顶点数据 (位置, 法线, UV)
@@ -243,7 +239,7 @@ void createGradientTexture() {
 
     for (int i = 0; i < texHeight; i++) {
         for (int j = 0; j < texWidth; j++) {
-            // 创建漂亮的蓝紫色渐变
+            // 创建蓝紫色渐变
             float u = (float)j / texWidth;
             float v = (float)i / texHeight;
             
@@ -326,7 +322,7 @@ void setupAxesBuffers() {
 void initGL() {
     glewExperimental = GL_TRUE;
     if (glewInit() != GLEW_OK) {
-        std::cerr << "Failed to initialize GLEW" << std::endl;
+        std::cerr << "初始化 GLEW 失败" << std::endl;
         exit(-1);
     }
     std::cout << "Using GLEW Version: " << glewGetString(GLEW_VERSION) << std::endl;
@@ -342,18 +338,18 @@ void initGL() {
     glDepthFunc(GL_LESS);
     glDepthMask(GL_TRUE);
     
-    // 禁用背面剔除，这样我们可以看到立方体的所有面
+    // 禁用背面剔除，这样可以看到立方体的所有面
     glDisable(GL_CULL_FACE);
 
     programID = LoadShaders("shaders/phong.vert", "shaders/phong.frag");
     if (programID == 0) {
-        std::cerr << "Failed to load shaders. Exiting." << std::endl;
+        std::cerr << "Failed to load shaders. QWQ" << std::endl;
         exit(-1);
     }
 
     axesProgramID = LoadShaders("shaders/axes.vert", "shaders/axes.frag");
     if (axesProgramID == 0) {
-        std::cerr << "Failed to load axes shaders. Exiting." << std::endl;
+        std::cerr << "Failed to load axes shaders. QWQ" << std::endl;
         exit(-1);
     }
 
@@ -429,7 +425,7 @@ void renderText(const char* text, float x, float y, float r, float g, float b) {
 void renderAxes(const glm::mat4& projectionMatrix, const glm::mat4& viewMatrix) {
     glUseProgram(axesProgramID);
 
-    glm::mat4 ModelMatrixAxes = glm::mat4(1.0); // Identity matrix, axes at origin
+    glm::mat4 ModelMatrixAxes = glm::mat4(1.0);
     glm::mat4 MVP_Axes = projectionMatrix * viewMatrix * ModelMatrixAxes;
 
     if (AxesMatrixID_MVP != -1) {
@@ -437,10 +433,10 @@ void renderAxes(const glm::mat4& projectionMatrix, const glm::mat4& viewMatrix)
     }
 
     glBindVertexArray(AxesVAO);
-    glLineWidth(2.0f); // Make axes lines thicker
-    glDrawArrays(GL_LINES, 0, 6); // 3 lines, 2 vertices each
+    glLineWidth(2.0f);
+    glDrawArrays(GL_LINES, 0, 6);
     glBindVertexArray(0);
-    glLineWidth(1.0f); // Reset line width
+    glLineWidth(1.0f);
 }
 
 void display() {
@@ -478,8 +474,8 @@ void display() {
         up
     );
 
-    // Render Cube
-    glUseProgram(programID); // Ensure correct shader is used for the cube
+
+    glUseProgram(programID);
 
     glm::mat4 ModelMatrixCube = glm::mat4(1.0);
     ModelMatrixCube = glm::translate(ModelMatrixCube, glm::vec3(0.0f, 0.0f, 0.0f));
@@ -540,7 +536,7 @@ void display() {
     // 解绑VAO
     glBindVertexArray(0);
 
-    // Render Axes
+    // 画坐标轴
     renderAxes(ProjectionMatrix, ViewMatrix);
 
     // 检查绘制后的OpenGL错误
@@ -559,7 +555,7 @@ void display() {
     glColor3f(lightColor.r, lightColor.g, lightColor.b);
     glutSolidSphere(0.1, 10, 10);
 
-    // 渲染操作说明文字
+    // 渲染操作说明文字（emmm看来不能非ASCII）
     renderText("Controls:", 10, windowHeight - 20, 1.0f, 1.0f, 0.0f);
     renderText("W/S: Move Forward/Backward", 10, windowHeight - 40);
     renderText("A/D: Strafe Left/Right", 10, windowHeight - 60);
@@ -606,7 +602,7 @@ void keyboard(unsigned char key, int x, int y) {
         glDeleteVertexArrays(1, &CubeVAO);
         glDeleteProgram(programID);
         glDeleteTextures(1, &checkerboardTextureID);
-        // Cleanup for axes
+        // 删除坐标轴相关资源
         glDeleteBuffers(1, &AxesVBO_vertices);
         glDeleteBuffers(1, &AxesVBO_colors);
         glDeleteVertexArrays(1, &AxesVAO);
@@ -632,9 +628,6 @@ void mouseButton(int button, int state, int x, int y) {
 void mouseMotion(int x, int y) {
     // 仅当鼠标在窗口内时处理，避免跳动
     if (x < 0 || x >= windowWidth || y < 0 || y >= windowHeight) {
-        // 当鼠标移出窗口时，可以选择不更新视角或者将鼠标重置回中心
-        // 如果选择重置，可能需要更复杂的逻辑来避免在窗口边缘的抖动
-        // mouseLeftDown = false; // 取消注释此行可以在鼠标移出时停止拖动视角
         return;
     }
 
@@ -651,7 +644,7 @@ void mouseMotion(int x, int y) {
         lastMouseX = x;
         lastMouseY = y;
 
-        // FPS游戏风格的鼠标控制 (可选):
+        // FPS游戏风格的鼠标控制:
         // if (x != windowWidth/2 || y != windowHeight/2) {
         //    glutWarpPointer(windowWidth/2, windowHeight/2);
         //    lastMouseX = windowWidth/2;
@@ -683,7 +676,6 @@ int main(int argc, char** argv) {
     glutKeyboardFunc(keyboard);
     glutMouseFunc(mouseButton);
     glutMotionFunc(mouseMotion);
-    // glutPassiveMotionFunc(mouseMotion); // 如果希望鼠标不按下也触发 warp (如果使用)
     glutIdleFunc(idle);
 
     glutMainLoop();

shader_utils.cpp

@@ -1,4 +1,3 @@
-// shader_utils.cpp
 #include "shader_utils.hpp"
 
 #include <vector>
@@ -17,7 +16,7 @@ GLuint LoadShaders(const char * vertex_file_path, const char * fragment_file_pat
         VertexShaderCode = sstr.str();
         VertexShaderStream.close();
     } else {
-        std::cerr << "无法打开 " << vertex_file_path << ". 你是否在正确的目录下运行程序?" << std::endl;
+        std::cerr << "无法打开 " << vertex_file_path << std::endl;
         getchar();
         return 0;
     }
@@ -31,7 +30,7 @@ GLuint LoadShaders(const char * vertex_file_path, const char * fragment_file_pat
         FragmentShaderCode = sstr.str();
         FragmentShaderStream.close();
     } else {
-        std::cerr << "无法打开 " << fragment_file_path << ". 你是否在正确的目录下运行程序?" << std::endl;
+        std::cerr << "无法打开 " << fragment_file_path << std::endl;
         getchar();
         return 0;
     }

shaders/axes.frag

@@ -1,4 +1,3 @@
-// shaders/axes.frag
 #version 330 core
 
 in vec3 fragmentColor;

shaders/axes.vert

@@ -1,4 +1,3 @@
-// shaders/axes.vert
 #version 330 core
 
 layout(location = 0) in vec3 vertexPosition_modelspace;

shaders/phong.frag

@@ -1,4 +1,3 @@
-// shaders/phong.frag
 #version 330 core
 
 // 从顶点着色器插值传入的变量

shaders/phong.vert

@@ -1,4 +1,3 @@
-// shaders/phong.vert
 #version 330 core
 
 // 输入顶点属性