OpenGL给正方体纹理贴图

OpenGL给立方体纹理贴图
下面是我的代码，实现的功能是绘制一个立方体，并给六个面贴上不同的纹理，（导入的六张bmp图片都是256*256大小的）。但是看到的效果是乱的，谁能帮我看看嘛？感激不尽~~

在这里我用到了SOIL（Simple OpenGL Image Library）库：http://nehe.gamedev.net/tutorial/lesson_06_texturing_update/47002/

我的代码：

#include <GL/glut.h>

#include <stdio.h>

#include <stdlib.h>


#include "SOIL.h"


GLuint texture[6];//6 textures for 6 faces of the cube


GLfloat xRot,yRot,zRot;//control cube's rotation


//load the bitmap and convert it into a texture

int LoadGLTextures()

{

	int Status = 0;

	char *bmpFile[6] = {"BmpFile/Ferrary.bmp","BmpFile/Honda.bmp","BmpFile/Hust.bmp",

		"BmpFile/Lamborghini.bmp","BmpFile/NeHe.bmp","BmpFile/Porsche.bmp"};

	for (int i = 0;i < 6;++i)

	{

		texture[i] = SOIL_load_OGL_texture(

			bmpFile[i],

			SOIL_LOAD_AUTO,

			SOIL_CREATE_NEW_ID,

			SOIL_FLAG_INVERT_Y);

		printf("texture[%d]: %d\n",i,texture[i]);

		if(texture[i] == 0)

			Status = 0;

		glBindTexture(GL_TEXTURE_2D,texture[i]);

		glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR);

		glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR);

	}


	return Status;

}


int init()

{

	glEnable(GL_TEXTURE_2D);

	if(!LoadGLTextures())

		return 0;

	glShadeModel(GL_SMOOTH);

	glClearColor(0.0f,0.0f,0.0f,0.5f);

	glClearDepth(1.0f);

	glEnable(GL_DEPTH_TEST);

	glDepthFunc(GL_LEQUAL);

	glHint(GL_PERSPECTIVE_CORRECTION_HINT,GL_NICEST);

	return 1;

}


void display()

{

	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

	glLoadIdentity();

	glTranslatef(0.0f,0.0f,-5.0f);

	glRotatef(xRot,1.0f,0.0f,0.0f);

	glRotatef(yRot,0.0f,1.0f,0.0f);

	glRotatef(zRot,0.0f,0.0f,1.0f);


	//glRotatef(45,1.0f,0.0f,0.0f);

	//glRotatef(45,0.0f,1.0f,0.0f);


	glBindTexture(GL_TEXTURE_2D,texture[0]);


	glBegin(GL_QUADS); 

	// Front Face 

	// Bottom Left Of The Texture and Quad 

	glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f, -1.0f,  1.0f); 

	// Bottom Right Of The Texture and Quad 

	glTexCoord2f(1.0f, 0.0f); glVertex3f( 1.0f, -1.0f,  1.0f); 

	// Top Right Of The Texture and Quad 

	glTexCoord2f(1.0f, 1.0f); glVertex3f( 1.0f,  1.0f,  1.0f); 

	// Top Left Of The Texture and Quad 

	glTexCoord2f(0.0f, 1.0f); glVertex3f(-1.0f,  1.0f,  1.0f); 

	glEnd(); 


	glBindTexture(GL_TEXTURE_2D,texture[1]);

	glBegin(GL_QUADS); 

	// Back Face 

	// Bottom Right Of The Texture and Quad 

	glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f, -1.0f, -1.0f); 

	// Top Right Of The Texture and Quad 

	glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f,  1.0f, -1.0f); 

	// Top Left Of The Texture and Quad 

	glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f,  1.0f, -1.0f); 

	// Bottom Left Of The Texture and Quad 

	glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f, -1.0f, -1.0f);