Author Topic: VertexArray Question (Read 1975 times)

zeruel · « **on:** March 02, 2012, 06:15:56 pm »

I've been going through the new graphics API and I'm confused about something.

I'm trying to figure out why we can't modify the vertices in a VertexArray. I see we can read them just fine but what if we want to move the texture coordinates or transform them?

Am I just missing something or is this really not possible?

EDIT: Nevermind, I just found the answer in another thread. Sorry about that. :oops:

zeruel · « **Reply #1 on:** March 02, 2012, 06:44:53 pm »

I do have a question after all.

I'm new to graphics and OpenGL so forgive my ignorance. Say I have a VertexArray with 100 quads in it. Is it guaranteed that it will be drawn in the order 0 to 99? Is there any occasion that would make it drawn backwards or in a random order?

Laurent · « **Reply #2 on:** March 02, 2012, 06:49:05 pm »

Quote

Is it guaranteed that it will be drawn in the order 0 to 99?

Yes.

zeruel · « **Reply #3 on:** March 02, 2012, 06:59:21 pm »

Thank you, Laurent.