D3DXSprite
Author
Everyone keeps saying D3DXSprite is slow.
But maybe anyone knows what makes it slow so it could be worked upon?
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Keep it simple, stupid
D3DXSprite is designed to be simple yet flexible, for that you compromise speed.
Basically, all it does is draw a quad with the texture you provide. Rolling your own (if needed) is pretty easy.
If you need higher performance, the biggest win is batching your calls so you are drawing a few hundred triangles rather than D3DXSprite''s 2 per call.
Stay Casual,
Ken
Drunken Hyena
Basically, all it does is draw a quad with the texture you provide. Rolling your own (if needed) is pretty easy.
If you need higher performance, the biggest win is batching your calls so you are drawing a few hundred triangles rather than D3DXSprite''s 2 per call.
Stay Casual,
Ken
Drunken Hyena
Author
Oh, thanks for the info.
I just tested how fast it is to render 1000 quads (2 unindexed triangled) using 1 big vertex buffer and 1000 quads (2 trianglestrip) calling drawprimitive 1000 times.
Believe it or not - the results are almost identical!
I get 117 fps with 1 big vb, and 114 with 1000 times calling draw primitive.
uuugh...
I just tested how fast it is to render 1000 quads (2 unindexed triangled) using 1 big vertex buffer and 1000 quads (2 trianglestrip) calling drawprimitive 1000 times.
Believe it or not - the results are almost identical!
I get 117 fps with 1 big vb, and 114 with 1000 times calling draw primitive.
uuugh...
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