I have researched some Information about VBOs. And they are editable! I have mixed them with display list, which are used for fastening 3D, too, but aren’t editable. With VBOs you have direct access on mesh data in graphics memory, as it is now, but it is stored in a better way.
I can display about 1000000 vertices (a plane subdivided 10 times) almost fluid (~20fps) with the VBO branch. This is not possible in 2.49. There I only get round about 3-4 frames. It’s on a 8600M GT mobile Nvidia with 256 megs and a Core2 @ 2.2GHz.
Though I have do unselect the object (disable the orange surrounding line) to achive this result. I think the outline is painted in software as no low levvel 3D API supports this feature. Don’t know how it is implemented in Blender.
Lukas plans for next week from the mailing list:
> b) What do you plan to do in the following week?
Document my code, fix vertex arrays, continue with other drawing modes.