Advertisement Jump to content
Sign in to follow this  
eSam

OpenGL Is UP Immediate?

This topic is 4379 days old which is more than the 365 day threshold we allow for new replies. Please post a new topic.

If you intended to correct an error in the post then please contact us.

Recommended Posts

Hello, Is using DrawPrimitiveUP comnsidered performance-wise equivalent to the OpenGL immediate call: glBegin...glEnd? Or is it a wrapper around creating a VB and pushing the vdata, Or is it driver independent? Thanks!

Share this post


Link to post
Share on other sites
Advertisement
I think DirectX's user primitive draw calls would be more equivalent to that of OpenGL's vertex arrays, with DirectX's vertex buffers being equivalent to OpenGL's vertex buffer objects.

Naturally there is an extra overhead with the DirectX draw calls, so an exact comparison isn't possible, but in terms of usage from within an application, those could be said to be most similar.

DirectX has no equivalent to that of OpenGL's immediate mode unless you emulate it yourself.

Regards,
ViLiO

Share this post


Link to post
Share on other sites
Sign in to follow this  

  • Advertisement
×

Important Information

By using GameDev.net, you agree to our community Guidelines, Terms of Use, and Privacy Policy.

GameDev.net is your game development community. Create an account for your GameDev Portfolio and participate in the largest developer community in the games industry.

Sign me up!