+0筆記 Week06

 



(1) 讀入3D模型：

• 點選連結網址：http://www.cmlab.csie.ntu.edu.tw/~jsyeh/3dcg10/
• 下載 [source]
• 將 glm.c glm.h lightmaterial.c 拉出

• 使用 Notepad++ 打開 lightmaterial.c

• 搜尋（Ctrl F ）: glm

• 複製 #include "glm.h"

• 複製 GLMmodel* pmodel = NULL;

• 複製 

      if (!pmodel) {

      pmodel = glmReadOBJ("data/soccerball.obj");

      if (!pmodel) exit(0);

      glmUnitize(pmodel);

      glmFacetNormals(pmodel);

      glmVertexNormals(pmodel, 90.0);

      }

      glmDraw(pmodel, GLM_SMOOTH);

• 將 glm.h 丟到你的Project中

• 將 glm.c 丟入Project並改附檔名為 cpp

• 將 data 丟入freeglut的 bin

• 在Project上點選 Add files

(2) 課堂範例程式：

#include <GL/glut.h> #include "glm.h"///(1)使用GLM GLMmodel* pmodel = NULL;///(2)GLMmodel變數 const GLfloat light_ambient[] = { 0.0f, 0.0f, 0.0f, 1.0f }; const GLfloat light_diffuse[] = { 1.0f, 1.0f, 1.0f, 1.0f }; const GLfloat light_specular[] = { 1.0f, 1.0f, 1.0f, 1.0f }; const GLfloat light_position[] = { 2.0f, 5.0f, 5.0f, 0.0f }; const GLfloat mat_ambient[] = { 0.7f, 0.7f, 0.7f, 1.0f }; const GLfloat mat_diffuse[] = { 0.8f, 0.8f, 0.8f, 1.0f }; const GLfloat mat_specular[] = { 1.0f, 1.0f, 1.0f, 1.0f }; const GLfloat high_shininess[] = { 100.0f }; void display() { glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT); if (!pmodel) {///(3) 讀入3D模型 pmodel = glmReadOBJ("data/soccerball.obj"); if (!pmodel) exit(0); glmUnitize(pmodel); glmFacetNormals(pmodel); glmVertexNormals(pmodel, 90.0); } glmDraw(pmodel, GLM_SMOOTH); glutSwapBuffers(); } int main(int argc, char **argv) { glutInit(&argc, argv); glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH); glutCreateWindow("Work06"); glutDisplayFunc(display); glClearColor(205/255.0,92/255.0,92/255.0,1); glEnable(GL_CULL_FACE); glCullFace(GL_BACK); glEnable(GL_DEPTH_TEST); glDepthFunc(GL_LESS); glEnable(GL_LIGHT0); glEnable(GL_NORMALIZE); glEnable(GL_COLOR_MATERIAL); glEnable(GL_LIGHTING); glLightfv(GL_LIGHT0, GL_AMBIENT, light_ambient); glLightfv(GL_LIGHT0, GL_DIFFUSE, light_diffuse); glLightfv(GL_LIGHT0, GL_SPECULAR, light_specular); glLightfv(GL_LIGHT0, GL_POSITION, light_position); glMaterialfv(GL_FRONT, GL_AMBIENT, mat_ambient); glMaterialfv(GL_FRONT, GL_DIFFUSE, mat_diffuse); glMaterialfv(GL_FRONT, GL_SPECULAR, mat_specular); glMaterialfv(GL_FRONT, GL_SHININESS, high_shininess); glutMainLoop(); }