Limits on Displacement Maps

Limits on Displacement Maps

Re: Limits on Displacement Maps Posted by SDDM on Fri Apr 15th 2005 at 11:15pm
SDDM
9 posts
Posted 2005-04-15 11:15pm
SDDM
member
9 posts 1 snarkmarks Registered: Nov 25th 2004 Location: America
Is there any kind of limit on the number of displacement maps that can be in a single map? I'm currently working on a large jungle map and so far the spawn alone has close to 50. I can imagine that this number would be high, if one exists, because even with the 50 displacement maps, and models, etc, my FPS is still extremely high and the +showbudget doesn't seem to be showing anything unusual. I'm just asking so that I know if I should keep going with the rate at which I'm making displacement maps or not.

Thanks,

SDDM
Re: Limits on Displacement Maps Posted by Rof on Fri Apr 15th 2005 at 11:28pm
Rof
210 posts
Posted 2005-04-15 11:28pm
Rof
member
210 posts 41 snarkmarks Registered: Dec 3rd 2004
You can have up to 2048 displacement surfaces on a map, and the other map limits (displacement vertices, lightmaps, etc.) are such that every displacement could be maximum size (power=4) without hitting a limit.

Of course, you'd probably run into fps problems long before you got to that point.

Also, lots of displacements tend to make the bsp file size very large, which may be an issue.
Re: Limits on Displacement Maps Posted by rs6 on Fri Apr 15th 2005 at 11:53pm
rs6
640 posts
Posted 2005-04-15 11:53pm
rs6
member
640 posts 94 snarkmarks Registered: Dec 31st 2004 Occupation: koledge Location: New Jersey, USA
You can do ALOT with just one displacement, remeber that.
Re: Limits on Displacement Maps Posted by SaintGreg on Mon Apr 18th 2005 at 6:33am
SaintGreg
212 posts
Posted 2005-04-18 6:33am
212 posts 51 snarkmarks Registered: Dec 3rd 2004
Thats true, one displacement can go a long way. But remember that
displacements render very cheaply, since they are easy to batch lots of
triangles into one group.