Camera 'jumps'

#1

I’ve read a lot of praise for Wings3d, and I’m always interested in trying out OSS.

I decided to try and build a poly model with Wings to see what this app is all about. Unfortunately I seem to have run into a problem from the get go: whenver I track, zoom, or move the camera in any way, the camera seems to ‘jump’ before I can smoothly control it. This happnes when I initiate any camera motion, after which it moves fine. If I switch from zooming to panning, the camera will jump.

I’m running Wings on OSX, I have an old video card (rage128). I normally model in Maya without problems (as long as the poly count doesn’t get too high :wink: ).

Right now Wings is making me dizzy with all this jumping; I really want to give Wings3d a chance, so hopefully this is a fixable issue.

TIA

#2

Which version do you use, and what camera mode? I think I had similar problem lot of versions ago, now it’s all ok. Using Maya camera mode.

#3

I’m using OSX with the same graphics card and I’ve never had this problem. What I have found is that Wings runs much faster and smoother if you change your screen resolution from millions of colours to thousands. Might be worth a try? - Baz

#4

I’m using 98.17f ; just downloaded it yesterday. I have it set to Maya camera mode; its what I’m used to.

I tried setting my screen to thousands of colors, but I’m getting the same results.

Its not that wings is running slowly, with a low frame rate. The camera is jumping. It occurs even if all I’m looking at is a poly cube.

For example: I’m looking at my object, I hold option and RMB drag left to zoom out; the camer will ‘jump’ in first, before I can zoom out.

I tried trashing my prefs and its all the same.

I’m running OS10.3 if thats make any difference.

edit: This problem doesn’t occur if I use the mouse wheel to scroll.

#5

Yeah, just tried Wings today and same problem here (OS X 10.3.2 + GeForce 4MX)…:shrug:

#6

It seems that the camera jumps in Panther (Mac OS 10.3). I haven’t had time to investigate the problem yet, but I will soon.

#7

I have now investigated the problem.

Unfortunately, I don’t know when it’ll be solved. The problem seems to be in the SDL package (on Panther only). The mouse coordinates in mouse events and when explicitly asking for the current mouse position are not consistent.

None of the possible solutions are very good:

  1. Wait for an update of the SDL library that fixes the problem. I have no idea when that will happen.

  2. Fix the problem myself in the SDL library. I don’t know how much work that would be.

  3. Somehow work around the bug. Tricky.

So the situation is that I currently can’t promise anything about when the problem will be fixed.

#8

Thanks for investigating, Bjorn! Let’s wait for the next Panther update, maybe Apple will fix that SDL library issue, as it may cause problems in other apps too… Anyway, even with this bug, Wings is a pleasure to use! :wink:

Keep up the great work!

capataz

#9

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