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Robert Woodruff
Senior Member
Username: Setz

Post Number: 735
Registered: 09-2006
Posted on Friday, September 28, 2012 - 11:16 am:   Edit Post Print Post

To speed up Texture map loading I try to use base 2 images, 1024,2048,4096 square images.

Is it also efficient to use a 1x2 or 1x3 ratio base2 image, for example, 1024x2048 or does this still require internal resampling? If resampling is still required, is a 1024x4096 more efficient than a 1000x5000 image?

I assume underlays are resampled in the same way as textures and benefit from base 2 as well?
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Username: Tech

Post Number: 17785
Registered: 04-2001

Posted on Monday, October 01, 2012 - 08:40 am:   Edit Post Print Post


There will be some minor efficiencies with using powers of 2, but as video cards and computers continue to advance, this is becoming somewhat less important. A square image will also be slightly more efficient than a non-square one -- but this efficiency may be offset by the demand for more video memory to handle the larger number of pixels.

We are aware of one issue that can make textures slow if you are using highly compressed JPG files -- and using a Higher Quality JPG (or other image format) will avoid this issue.