RE: [Algorithms] Binary trees and drawing order (and results)

[Tom F. <to...@mu...>]

It's a judgement call, and it can depend on the driver. But my gut feeling
says that a texture change is more expensive than a transform change. Also
remember that if using driver-managed textures, then the texture change may
involve transferring the texture from sys to vid mem. In which case the
texture change is obviously far more expensive!

Tom Forsyth - purely hypothetical Muckyfoot bloke.

This email is the product of your deranged imagination,
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> -----Original Message-----
> From: Jaimi McEntire [mailto:ja...@al...]
> Sent: 24 January 2001 17:31
> To: gda...@li...
> Subject: RE: [Algorithms] Binary trees and drawing order (and results)
> 
> 
> Tom - what about the situation when you need to do matrix changes -
> ie, you have 10 identical objects with the same 2 textures but
> different matrices.
> Is it still cheaper to sort by texture (and do 20 matrix changes)
> or should you sort by matrix and do 20 texture changes?