About D3D DrawPrimitiveUp

AZhu · Post by **AZhu** » Mon Feb 23, 2004 3:09 am

Hello, I have some question about D3DDriver, in Microsoft DXSDK document & some GDC articles, the DrawPrimitiveUp or DrawIndexedPrimitiveUp is much slower than DrawPrimitive or DrawIndexedPrimitive. I see the plan of Irrlicht Engine, there as a plan to use vertexbuffer, I want to know the difference of their, thanks a lot!

niko · Post by **niko** » Mon Feb 23, 2004 7:28 am

Yep, vertex buffers are planned. Internally DrawIndexedPrimitiveUP creates an vertex buffer for every call, so it is slower.

SuryIIID_ · Post by **SuryIIID_** » Mon Feb 23, 2004 5:43 pm

I really cannot wait for the day when Irrlicht will become real fast with it's Vbuffers and D3DPT_TRIANGLESTRIP's

http://irrlicht.sourceforge.net/phpBB2/ ... .php?t=766