新人提问~~关于OpenGL里使用多个缓冲区对象的问题

nu123

RT~~~本人定义了两个缓冲区对象，并想将他们分别渲染出来。在OpenGL里要怎么实现呢？

写入数据时：
for (int i = 0;i < nmeshes;i++)
{
Lib3dsMesh *mesh = f3ds->meshes;
...;//由3ds文件中读取出需要数据
glGenBuffers(1,&m_Vertex);
glGenBuffers(1,&m_Index);
glBindBuffer(GL_ARRAY_BUFFER,m_Vertex);
glBufferData(GL_ARRAY_BUFFER,(sizeof(float) * 9 * mesh->nfaces) + (sizeof(float) * 3 * mesh->nvertices),TotleV,GL_STATIC_DRAW);
glVertexPointer(3,GL_FLOAT,0,BUFFER_OFFSET(0));
glNormalPointer(GL_FLOAT,0,BUFFER_OFFSET(V_size));

glBindBuffer(GL_ELEMENT_ARRAY_BUFFER,m_Index);
glBufferData(GL_ELEMENT_ARRAY_BUFFER,sizeof(unsigned short) * 3 * mesh->nfaces,tempIndex,GL_STATIC_DRAW);
DrawCount = mesh->nfaces * 3;
}


渲染时：

glBindBuffer(GL_ARRAY_BUFFER,m_Vertex[0]);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER,m_Index[0]);
glDrawElements(GL_TRIANGLES,DrawCount[0],GL_UNSIGNED_SHORT,NULL);

glBindBuffer(GL_ARRAY_BUFFER,m_Vertex[1]);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER,m_Index[1]);
glDrawElements(GL_TRIANGLES,DrawCount[1],GL_UNSIGNED_SHORT,NULL);

这样渲染得话，渲染出来的图形会出错……

OpenGL能像D3D那样能对不同的缓冲区对象进行渲染吗？

nu123

搞定了~~~原来还要把glVertexPointer之流的指向重设一下