Is there a maximum TV limited Texture Memory

[monsenrm]

I have been getting crashes with large texture memory usage.  I typically "offer" the user compressed, 16bit or 32bit options.  When using maximum texture size (also an option) and anything other than compressed I get crashes.

It doesn't matter what graphics card I use or how much memory it has (used 512mb to 1.2gb cards and laptop junk ones too)

Bottom line: it always works to use compressed option on any size texture size option.  Compressed really makes them small. But I have to reduce the size of the textures on any other option 16bit or 32bit.

Maybe testing loading a collection of really big textues.  Initially I "thought" it was a graphics card limitation - but it isn't related to the graphics card memory.

I am just wondering if there is an inherent TV limitation that has gone unoticed because no one else is loading so many large textures....

thanks!

ron

[jviper]

How big are your textures? Form what I renember the biggest texture you can load is 2048 x 2048 (16 MB). But that is per texture. How much total are you using?

[Toaster]

Biggest texture you can load depends on the graphics card. Like my laptop card and desktop card for instance support up to 8192x8192 where as my old Geforce 7900 GS has a max of 4096x4096. Now I haven't actually loaded a texture that big in and I probably never will but I know for a fact that you can load a 4096x4096 in cause I've used them before! I even used them with my shadow mapping. Since your having problems on multiple computers I would do this:

1. Write a simple program that loads different sized textures.
2. Calculate how much memory each texture uses.
3. Keep a log of used video memory so that you know whats going on.

I think that will help you a lot and who knows maybe TV has an actual bug in that area.

-Toaster

[monsenrm]

It is not a problem with a single texture.  It is that I am loading many textures - and the accumulation of them results in a large usage of texture memory.

Yes - many of my textures are 4096x4096 and most modern graphics cards handle it.  If you have one that can only go 2048 - the 4096 texture is loaded as 2048 without problem.

Yes - I guess I could do the experiment and try to find out exactly the value of textue memory usage causes the crash - I just thought maybe someone else had encountered the problem and/or the TV team was already aware....

Ron

BTW - a trailer for my new release is here... you can see the usage of textue memory!
http://www.youtube.com/watch?v=Y5wnbf0y0dQ

Make sure you enable the HD button!