week11 天氣晴
1.下載mygundam.zi檔,並開啟week09 openCV 的程式碼
如下:
#include <opencv/highgui.h>
int main()
{
IplImage*img=cvLoadImage("Diffuse.jpg");
cvShowImage("week09",img);
cvWaitKey(0);
}
2..把week09-texture-mix的程式碼,把鋼彈貼圖貼到茶壺上
3.把week09-texture-mix的程式碼,把鋼彈貼圖貼到茶壺上
程式碼:
#include <opencv/highgui.h> ///使用 OpenCV 2.1 比較簡單, 只要用 High GUI 即可
#include <opencv/cv.h>
#include <GL/glut.h>
int myTexture(char * filename)
{
IplImage * img = cvLoadImage(filename); ///OpenCV讀圖
cvCvtColor(img,img, CV_BGR2RGB); ///OpenCV轉色彩 (需要cv.h)
glEnable(GL_TEXTURE_2D); ///1. 開啟貼圖功能
GLuint id; ///準備一個 unsigned int 整數, 叫 貼圖ID
glGenTextures(1, &id); /// 產生Generate 貼圖ID
glBindTexture(GL_TEXTURE_2D, id); ///綁定bind 貼圖ID
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); /// 貼圖參數, 超過包裝的範圖T, 就重覆貼圖
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); /// 貼圖參數, 超過包裝的範圖S, 就重覆貼圖
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); /// 貼圖參數, 放大時的內插, 用最近點
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); /// 貼圖參數, 縮小時的內插, 用最近點
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, img->width, img->height, 0, GL_RGB, GL_UNSIGNED_BYTE, img->imageData);
return id;
}
void display()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glutSolidTeapot( 0.3 );
glutSwapBuffers();
}
int main(int argc, char**argv)
{
glutInit( &argc, argv );
glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);
glutCreateWindow("week11 gundamtexture");
glutDisplayFunc(display);
myTexture("Diffuse.jpg");
glutMainLoop();
}
3.鋼彈模型
(1)至jsyeh.org/3dcg10下載source.zip
(2)把glm.c的檔名改為glm.cpp，把glm.h & glm.cpp 複製到week11-gundam專案目錄裡
(3)在week11-gundam的專案中，加入glm.cpp
像這樣:
#include "glm.h"///在專案目錄
GLMmodel*pmodel=NULL;///指標指到模型
display中:
if(pmodel==NULL)///如果是空指標
{
pmodel=glmReadOBJ("Gundam.obj");///讀取模型
glmUnitize(pmodel);///換算成Unit單位大小，-1...+1
glmFacetNormals(pmodel);///重新計算模型的面的法向量
glmVertexNormals(pmodel,90);///重新計算頂點的法向量
}
glmDraw(pmodel,GLM_TEXTURE);///有模型後，畫面要記得畫貼圖
4. (1)開3D的前後深度測試(讓貼圖貼在對的位置)→glEnable(GL_DEPTH_TEST)
(2)讓模型旋轉
6.利用MAYA切割模型:
7.對特定旋轉軸轉動week11-TRT
#include <GL/glut.h>
void hand()
{
glColor3f(0,1,0);
glutSolidTeapot(0.2);
}
void body()
{
glColor3f(1,1,0);
glutSolidTeapot(0.3);
}
float angle=0;
void display()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
body();
glPushMatrix();
glTranslatef(0.5,0.2,0);
glRotatef(angle,0,0,1);
glTranslatef(0.3,0,0);
hand();
glPopMatrix();
glutSwapBuffers();
angle+=0.3;
}
int main(int argc, char** argv)
{
glutInit( &argc, argv);
glutInitDisplayMode( GLUT_DOUBLE | GLUT_DEPTH );
glutCreateWindow("week11-TRT");
glutIdleFunc(display);
glutDisplayFunc(display);
glutMainLoop();
}
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