请教 OpenGL VBO的问题 急～～～～～～～～～～～～～～～～～～～～～

[gaararay]

	GLfloat fAxisVertexList[][3] = 
	{
		0.0f,0.0f,0.0f,
		30.0f * m_fModelWindowRatioX * m_fScale,0.0f,0.0f,
		0.0f,50.0f * m_fModelWindowRatioX * m_fScale,0.0f,
		0.0f,0.0f,70.0f * m_fModelWindowRatioX * m_fScale,
	};
	
	static GLuint unAxisIndexList[][2] = 
	{
		0,1,
		0,2,
		0,3,
	};

	static int isFirstCall = 1;
	static unsigned int	unVertexBuffer;		// 顶点缓存对象的名称
	static unsigned int	unIndexBuffer;		

	bool bVBOSupported = IsExtensionSupported( "GL_ARB_vertex_buffer_object" );

	// 获得函数的指针
	glGenBuffersARB = (PFNGLGENBUFFERSARBPROC) wglGetProcAddress("glGenBuffersARB");
	glBindBufferARB = (PFNGLBINDBUFFERARBPROC) wglGetProcAddress("glBindBufferARB");
	glBufferDataARB = (PFNGLBUFFERDATAARBPROC) wglGetProcAddress("glBufferDataARB");
	glDeleteBuffersARB = (PFNGLDELETEBUFFERSARBPROC) wglGetProcAddress("glDeleteBuffersARB");

	if (isFirstCall)
	{
		isFirstCall = 0;
		//分配一个缓冲区，并将顶点数据存入缓冲区
		glGenBuffersARB(1,&unVertexBuffer);
		glBindBufferARB(GL_ARRAY_BUFFER_ARB,unVertexBuffer);
		glBufferDataARB(GL_ARRAY_BUFFER_ARB,sizeof(fAxisVertexList),fAxisVertexList,GL_STATIC_DRAW_ARB);

		glGenBuffersARB(1,&unIndexBuffer);
		glBindBufferARB(GL_ELEMENT_ARRAY_BUFFER_ARB,unIndexBuffer);
		glBufferDataARB(GL_ELEMENT_ARRAY_BUFFER_ARB,sizeof(unAxisIndexList),unAxisIndexList,GL_STATIC_DRAW_ARB);
	}

	glBindBufferARB(GL_ARRAY_BUFFER_ARB,unVertexBuffer);
	glBindBufferARB(GL_ELEMENT_ARRAY_BUFFER_ARB,unIndexBuffer);

	glVertexPointer(3,GL_FLOAT,0,(char *)NULL);
	glDrawElements(GL_LINES,6,GL_UNSIGNED_INT,(char *)NULL);

本人菜鸟啊，基本就是照着教程copy下来的，
最后一句glDrawElements(GL_LINES,6,GL_UNSIGNED_INT,(char *)NULL); 处内存访问出错
请教一下应该怎么改？？

[gaararay]

[Quote=引用 1 楼 glacier3d 的回复:]
好像是glDrawElements(GL_LINES,6,GL_UNSIGNED_INT,(char *)unAxisIndexList);
[/Quote]

不行的

[glacier3d]

好像是glDrawElements(GL_LINES,6,GL_UNSIGNED_INT,(char *)unAxisIndexList);

[zzz822163]

glDrawElements之前要先使用glEnableClientState
你教程上没说?

[zzz822163]

http://www.cppblog.com/w2001/archive/2008/05/10/49376.html
你看看这个

[gaararay]

[Quote=引用 3 楼 zzz822163 的回复:]
glDrawElements之前要先使用glEnableClientState
你教程上没说?
[/Quote]

问题自己找到了。。
之前初始化的时候用了
glEnableClientState(GL_COLOR_ARRAY);
忘了关掉