CGTalk - UV texture editor lag

View Full Version : UV texture editor lag

theKwyjibo

08-29-2002, 12:55 AM

Hi,
I have a strange problem, When I am attempting to use the UV texture editor to edit and place some UVs but whenever I select the UVs for editing and begin to move them there is a several second lag before they begin to move, once they begin everything moves smoothly. If I let go of the mouse and attempt to move them (or others) again I get the same results. I have attempted to delete history to sort this out and it does not seem to work. I even optimised the scene in the hopes that something there was causing it. I know it is not the Graphics card as all other performance has been excellent just this is causing problems. Any suggestions (or if you can point me to a place in the manuals where some of these types of issues are discussed I would also be grateful of that)

-Thanks for any help
Russ

zbgump

09-20-2003, 08:20 PM

I was about to post this very same question; unfortunatley this post is over a year old so maybe noone has a clue :(

Pent

09-21-2003, 02:21 AM

I want to know why too
I get this when using the interactive uv texture placement thing
it kind of sucks

Electrofirma

09-21-2003, 05:12 AM

I get the same results when I'm dragging A LOT (a few hundred) UV's.

I have always assumed that the lag is due to the same reason there is a lag when extruding a lot of faces, or averaging user normals on a lot of vertices.

There is a lot of figuring going on under the hood. There is memory allocation and shifting of stuff in memory just to get the ducks in a row for performing the drag function.

The reason it is smooth once it starts is because it is doing the same thing to all of the UV's. You'll notice if your scaling the UV's the movement is a little chunkier because it isn't a simple addition or subtraction by the same amount for everything.

You'll also notice that if you converted the selection to faces and did an extrude it gets way chunkier because as you drag it has to figure 3D coordinates for everything.

Please post machine specs, and the number of UV's your manipulating.

AMD Athlon 2.0 GHz
756 Meg 266 MHz DDR ram
GeForce2 128 Meg DDR

EDIT: BTW zbgump, Thanx for putting in the effort to actually search for the answer first, and also for bumping the old thread rather than starting a new one

CGTalk Moderation

01-13-2006, 03:00 PM

This thread has been automatically closed as it remained inactive for 12 months. If you wish to continue the discussion, please create a new thread in the appropriate forum.