week08

到 jsyeh.org/3dcg10 下載

    1.windows.zip 解壓縮至windows\Light Material.exe

    2.data.zip丟到windows裡面

    3.source.zip

    4.執行 Light Material.exe 今天的主角：打光、模型

今日程式碼

#include <GL/glut.h>
	#include "glm.h"
	GLMmodel* pmodel = NULL;///指到GLMmode模型的指標，NULL代表還沒好
	void
	drawmodel(void)
	{
	if (!pmodel) {
	pmodel = glmReadOBJ("data/soccerball.obj");///找模型的位置
	if (!pmodel) exit(0);
	glmUnitize(pmodel);
	glmFacetNormals(pmodel);
	glmVertexNormals(pmodel, 90.0);
	}
	glmDraw(pmodel, GLM_SMOOTH);
	}///用來畫3D模型的程式碼
	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 };///z的加負號
	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);
	glColor3f(1,1,0);
	///glutSolidTeapot( 0.3 );
	drawmodel();///呼叫畫模型
	glutSwapBuffers();
	}
	int main( int argc ,char **argv){
	glutInit(&argc , argv);
	glutInitDisplayMode( GL_COLOR_BUFFER_BIT| GL_DEPTH_BUFFER_BIT);
	glutCreateWindow("week06 Light");
	///複製的程式碼要放glutCreateWindow內!!
	glutDisplayFunc(display);
	glEnable(GL_DEPTH_TEST);///開啟深度功能
	glDepthFunc(GL_LESS);
	glEnable(GL_LIGHT0); ///打開/建立燈光
	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();
	///之後要放在glutMainLoop以前!!
	}