我已经写了下面的程序,在两面墙壁和一个地板的房间的桌子上显示一个茶壶。Opengl适当的照明问题
#include <stdio.h>
#include <glut.h>
void wall1(float thickness)
{
glPushMatrix();
glTranslatef(100,100,0);
glRotatef(90,1,0,0);
glScalef(thickness,1,1);
glutSolidCube(100);
glPopMatrix();
}
void wall2(float thickness)
{
glPushMatrix();
glTranslatef(150,100,-50);
glScalef(1,1,thickness);
glutSolidCube(100);
glPopMatrix();
}
void floor(float thickness)
{
glPushMatrix();
glTranslatef(150,50,0);
glScalef(1,thickness,1);
glutSolidCube(100);
glPopMatrix();
}
void leg(float thickness)
{
glPushMatrix();
glScalef(thickness,.5,thickness);
glutSolidCube(100);
glPopMatrix();
}
void tableTop(float thickess)
{
glPushMatrix();
glTranslatef(150,100,0);
glScalef(.5,thickess,.5);
glutSolidCube(100);
glPopMatrix();
}
void table()
{
tableTop(.05);
glPushMatrix();
glTranslatef(125,75,-25);
leg(.05);
glPopMatrix();
glPushMatrix();
glTranslatef(175,75,-25);
leg(.05);
glPopMatrix();
glPushMatrix();
glTranslatef(175,75,25);
leg(.05);
glPopMatrix();
glPushMatrix();
glTranslatef(125,75,25);
leg(.05);
glPopMatrix();
glPushMatrix();
glTranslatef(150,110,0);
glScalef(.1,.1,.1);
glutSolidTeapot(100);
glPopMatrix();
}
void display()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
float pos[] = {200,200,0};
float dif[] = {.3,.3,.3,3};
float spe[] = {1,1,1,1};
float amb[] = {1,1,1,0};
glLightfv(GL_LIGHT0,GL_POSITION,pos);
glLightfv(GL_LIGHT0,GL_DIFFUSE,dif);
glLightfv(GL_LIGHT0,GL_AMBIENT,amb);
glLightfv(GL_LIGHT0,GL_SPECULAR,spe);
glTranslatef(50,50,0);
glRotatef(30,1,0,0);
glRotatef(-30,0,1,0);
wall1(.05);
wall2(.05);
floor(0.05);
table();
glFlush();
}
void reshape(int w,int h)
{
glViewport(0,0,w,h);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(0,400,0,400,-400,400);
glMatrixMode(GL_MODELVIEW);
}
void main(int argc,char** argv)
{
glutInit(&argc,argv);
glutInitDisplayMode(GLUT_RGB | GLUT_SINGLE | GLUT_DEPTH);
glutInitWindowPosition(100,100);
glutInitWindowSize(400,400);
glutCreateWindow("woot");
glClearColor(1,1,1,1);
glEnable(GL_DEPTH_TEST);
glEnable(GL_LIGHTING);
glEnable(GL_LIGHT0);
glShadeModel(GL_SMOOTH);
glutReshapeFunc(reshape);
glutDisplayFunc(display);
glutMainLoop();
}
这个问题是我的照明部分没有按预期工作。它不是照亮均匀我的所有物品...我错过了什么?这甚至使茶壶难以入海。 我的照明部分在显示功能。
但是你知道,环境不是光明,而是颜色不足? – 2011-06-02 12:58:37
啊,我看到现在发生了什么:缩放也影响法线。另外尝试glEnable(GL_RESCALE_NORMAL);如果可用,它比标准化要快一点。 – datenwolf 2011-06-02 13:24:30
@christian哦!我不知道..虽然它是一个光源......它将被添加到原材料的颜色right – footy 2011-06-02 14:36:17