Triangles disappearing then reappearing

JP · Post by JP » Sat Nov 04, 2006 3:57 pm

Obviously you can't get out of a fullscreen window using your mouse, the default way is to press Alt-F4 (at least under windows), but yeah if you run fullscreen then pressing escape to exit is a good plan.

Can't suggest anything more other than trying the things i did to see if it's the same problem or not!

Lideln · Post by **Lideln** » Sat Nov 04, 2006 4:39 pm

JP I have news...

Thanks to the Quadtree Bitplane told me about in the "Tips for making an HOMM like game" (not the quadtree itself but that gave me an idea), I found why my map was disappearing.

I was adding my map as an Octree scene node, but if I use just addMeshSceneNode, it does not disappear anymore !

At least it is one issue solved, but maybe Hybrid should have a look at it ?

Thanks for trying to help JP

JP · Post by JP » Sat Nov 04, 2006 6:10 pm

Glad it worked out for you! Don't think that was my issue, but my issue was solved sufficiently anyway so we're both happy

Lideln · Post by **Lideln** » Sat Nov 04, 2006 8:04 pm

Yes I saw that it worked for you in fullscreen mode, so thats nice (but still strange that it does not work in windowed)

Indeed Im really happy that this issue is solved because it was getting on my nerves to see the map disappearing if I dared to move too much around the map

Things are getting better these days

bitplane · Post by **bitplane** » Sat Nov 04, 2006 9:49 pm

can either of you guys see this problem when running with a 16-bit desktop? how about in irrlicht 1.1 rather than svn?
I'm wondering if its something to do with the new default z-buffer depth in svn.

JP · Post by JP » Sat Nov 04, 2006 10:03 pm

I'm running Irrlicht 1.1, not the SVN version. And incidentally it's gone back to working fine windowed and with no vsync

bitplane · Post by **bitplane** » Sat Nov 04, 2006 11:16 pm

bah. okay i think we can safely call this nvidia's fault. i can't recreate it in 1.1, with vsync turned on, or with a 16 bit desktop.
it changes depending on how many meshes are being rendered, what's in front of them, their transformation but not in a predictable way.

Lideln · Post by **Lideln** » Mon Nov 06, 2006 7:40 am

I did not get the same issue as JP.
For me, it was obviously the fault (but according to what criteria ?) of the OctreeSceneNode, because it works fine if I do not use it for the level (but I got this issue only with the level, not the objects).

Thats all I can say. Maybe gurus can have a look at the OctreeSceneNode code...

Good day all.

JP · Post by JP » Mon Nov 06, 2006 10:29 am

bitplane wrote:bah. okay i think we can safely call this nvidia's fault. i can't recreate it in 1.1, with vsync turned on, or with a 16 bit desktop.
it changes depending on how many meshes are being rendered, what's in front of them, their transformation but not in a predictable way.

Yeah i've had problems with the targets i'm shooting at losing triangles as well, but that only occurs when i'm using the FPS camera to do some debugging, luckily i don't need to use the FPS cam at all in this project so that's not a problem right now!

JP · Post by JP » Mon Nov 06, 2006 8:54 pm

And all of a sudden, as if by some kind of miracle, i now have to use fullscreen all the time otherwise my targets keep disappearing xD

Don't ya just love it?

Lideln · Post by **Lideln** » Mon Nov 06, 2006 9:49 pm

lol I'm sorry for you, in addition, its not me who will be able to help you, unfortunately

Maybe bitplane of hybrid will have an idea

Good luck, its all I can do for you... (arf)

Simson · Post by **Simson** » Wed Feb 07, 2007 1:19 am

Hello,
I have the same problem, but that work perfect with VSync only.
I use : Irrlicht latest SVN,DX9 on an Nvidia Geforce 7600 GT.
Anyone have found where exactly is the bug ?