On Monday, 22 July 2013 at 09:26:33 UTC, David wrote:
Am 22.07.2013 10:41, schrieb Namespace:
It's part of Dgame and it's the shape draw method. The method collects
the vertices and give them to the vertex buffer.
I will try it with my current way: static stack buffer with a size of 1024 and otherwise I will temporary allocate memory. But how much shapes
grow larger than 1024 vertices ;).

This will be over 1024 vertices in no time, I am currently drawing vertices with a size of ~500MiB depending on the terrain. The CPU doesn't need to know of all vertices at once, so collect them and upload them to the GPU if they go over a certain limit and begin to fill your buffer from the start again. I use a malloc allocated buffer, its size is never decreased, I initially allocate an educated guess + some extra to be safe, then if it really happens to run ot of memory I simple resize it depending on how much is left with another educated guess +
some extra.

Hm, but Dgame isn't designed for that sort of thing. It's more like SFML for C++. So do you think that such Framework will ever use more vertices than 1024? Anyway, if it's larger, I allocate with malloc enough memory and free it at the end of the scope.

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