Help!How to draw all the objects in only one DrawPrimitive() call?

AlanWu · 2012-12-09T08:43:29

Hello,everybody.I think i am new,i am alan,i am from China.I moved to NewZealand one year ago. But my English still not good.Please don't mind. I got some questions when i was programming and i don't know how to do,so i just ask some questions. Some people said if you call DrawPrimitive for every objects it will be very slow.I understood it. And they said we can draw all the objects in only one DrawPrimitive call.They said put all the object's vertex in a vertex buffer then call SetStreamSource and call DrawPrimitive for only once time. First,i don't understand how to put all the objects in only one vertex buffer. Second,i want to draw the texture in the objects,and they have the different texture,if it is only once DrawPrimitive call,how could i set the different textures for every objects? I don't understand it at all.Could everybody help me please? Oh,and i am making a 2D render,it doesn't need to be 3D but i hope it can be fast.