 | | | 3D feedback <was 3d member > | 3D feedback <was 3d member > 2004-03-26 - By NoiseCrime
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-- -- Original Message -- --
From: "Thomas Williams" <t@(protected)>
> but the main performance problem is that in order to work, the 3d sprite
> must be dts=false. that makes it much slower. So i need to find a way to
get
> the image from the stage with 3d sprite using dts = true.
Unfortunately in all the tests I did, I found actually grabbing the image
from a w3d member was slower than doing it non-dts via copypixels! Also
using the openGL rendered performed faster then DX7 (something like 15%).
Granted this could be very dependant on machine performance and 3D card, but
overall I seam to remember deciding that non-dts was simply faster (and more
realiable). The only benifit of using member.image is that the member does
not need to be a sprite on stage and the rendered frame will be updated each
time you get the image, allowing for multiple images to be extracted within
a single frame (just remember to use image.duplciate() is assigning the
image to a varible in this case)
I forget whats been discussed on this thread but the main issues when
dealing with grabbing images are
1. You provide the bitmap as a power of 2
2. Use #low or #lowfiltered quality textures if possible to avoid creating
mipmaps
3. Be realistic in the size of the image being grabbed - i.e. going above
256x256
Noisecrime 2004
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