05160461_廖柏宇 第一次上課筆記在blog Week08(打光)

期中模擬考




step1:
下載檔案:http://www.cmlab.csie.ntu.edu.tw/~jsyeh/3dcg10/
下載:source、data、win32、glut32.dll還有freeglut-MinGW-3.0.0-1.mp.zip
放的位置跟前幾周一樣

開Light Material.exe

建專案(跟前幾周一樣)

修改模型

把中間圖案改茶壺

將data放一個道freeglut裡面

把函式庫用好並匯入

--------------------------------------------已上是上次上課內容---------------------------------------------------
step2
去source 的transfomation.c搜尋glm來複製所需程式碼



分別為:
#include "glm.h"
GLMmodel* pmodel = NULL;

 if (!pmodel) {
pmodel = glmReadOBJ("data/porsche.obj");
if (!pmodel) exit(0);
glmUnitize(pmodel);
glmFacetNormals(pmodel);
glmVertexNormals(pmodel, 90.0);
    }

    glmDraw(pmodel, GLM_SMOOTH | GLM_MATERIAL);
這幾段


接下來這是這次上課重點打光







完成程式碼如下

#include "glm.h"
GLMmodel* pmodel = NULL;

float angle=0;
void motion(int x, int y)
{

    angle=x;
    glutPostRedisplay();

}

static void display(void)
{
    const double t = glutGet(GLUT_ELAPSED_TIME) / 1000.0;
    const double a = t*90.0;

    //glClearColor(1,0,0,0);
    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
    glColor3d(1,0,0);



    glPushMatrix();

        glRotated(angle, 0, 1, 0);
        //glutSolidTeapot(1);//glutSolidCone(1,1,slices,stacks);
        if (!pmodel) {
        pmodel = glmReadOBJ("data/porsche.obj");
        if (!pmodel) exit(0);
        glmUnitize(pmodel);
        glmFacetNormals(pmodel);
        glmVertexNormals(pmodel, 90.0);
        }

        glmDraw(pmodel, GLM_SMOOTH | GLM_MATERIAL);
    glPopMatrix();

    glutSwapBuffers();
}



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 };

/* Program entry point */

int main(int argc, char *argv[])
{
    glutInit(&argc, argv);
    glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("GLUT Shapes");
    glutDisplayFunc(display);
    glutMotionFunc(motion);

    glClearColor(1,1,1,1);

    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();


}

---------------------------------------------------作業重點核心------------------------------------------------------

上課影片