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Re: how many pollys can A6 handle [Re: ulillillia] #47953
06/22/05 15:16
06/22/05 15:16
Joined: Sep 2002
Posts: 199
Chicago, Illinois
Thehawk Offline
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Thehawk  Offline
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Joined: Sep 2002
Posts: 199
Chicago, Illinois
Quote:

Well, from a test I did a while ago, in early May, taking out my blog again, here are my results and conditions in my experiment:

skin size (16x16 versus 2048x1024), object size (4x4 by 8 high versus 1024x1024 by 512 high), polygon quantity (4 versus 4096)

skin size (S for 16x16, L for 2048x1024), object physical size (S for 4x4 by 8 high versus 1024x1024 by 512 high), poly count (S for 4 polys, L for 4096 polys)
S S S = 48 fps @ 208 objects, 35 fps @ 312 objects, 26 fps @ 416 objects, 18 fps @ 624 objects;
L S S = maxed fps @ 27 objects;
S L S = maxed fps @ 64 objects, 38 fps @ 256 objects, 22 fps @ 512 objects;
L L S = maxed fps @ 27 objects;
S S L = 50 fps @ 9 objects, 28 fps @ 18 objects, 15 fps @ 36 objects; 8 fps @ 72 objects;
L S L = 50 fps @ 9 objects, 28 fps @ 18 objects;

So, about 360 objects on screen at once gives about 30 fps. From this, with a super high poly model, 69632 polys is the limit for 30 fps. This is with my Radeon 9600 XT on a 1.05 GHz processor with 512 MB 333 MHz RAM.

I don't understand how you were able to get a million polys....

In any case, the key is to avoid lots of entities and combine them into just one entity. My world has 25,000 polys total (and can be reduced to about 18,000 or so) and it renders at 30 fps. It consists of only six entities. This, however, does not include the platform levels which uses many entities (but this can be reduced drastically if the external textures feature gets implemented).





When you guys say objects are you reffering to the actual primitives or blocks that you use to build a level in WED or are you refering to entities or models that you use to populate the levels?

Is there a difference in terms of polygons between the two?

Re: how many pollys can A6 handle [Re: Thehawk] #47954
06/22/05 16:39
06/22/05 16:39
Joined: Feb 2003
Posts: 6,818
Minot, North Dakota, USA
ulillillia Offline
Senior Expert
ulillillia  Offline
Senior Expert

Joined: Feb 2003
Posts: 6,818
Minot, North Dakota, USA
Level blocks render more slowly than model polygons. If you had a 12-poly model of a cube, it'll render faster than the block of the same size and stuff. In my experiment, I had everything in the view. I used nothing but models. I had one block to prevent the "no geometry" error, but it was a fairly small block.

Edit: I forgot to mention that the exception to this, which makes level geometry run faster than models, is when you have a bunch of models on the view at once.

Last edited by ulillillia; 06/22/05 16:45.

"You level up the fastest and easiest if you do things at your own level and no higher or lower" - useful tip My 2D game - release on Jun 13th; My tutorials
Re: how many pollys can A6 handle [Re: ulillillia] #47955
06/23/05 14:51
06/23/05 14:51
Joined: Sep 2002
Posts: 199
Chicago, Illinois
Thehawk Offline
Member
Thehawk  Offline
Member

Joined: Sep 2002
Posts: 199
Chicago, Illinois
sorry if i'm seen slow but is level geometry and models all a part of the same polygon budget?

The reason I ask is because I'm building a level and i've noticed that it takes an extremely long time to compile like 2 days so far. I was wondering how portals and level geometry play into level compile times and the gameplay frames per second

Re: how many pollys can A6 handle [Re: Thehawk] #47956
06/24/05 09:59
06/24/05 09:59
Joined: Feb 2003
Posts: 6,818
Minot, North Dakota, USA
ulillillia Offline
Senior Expert
ulillillia  Offline
Senior Expert

Joined: Feb 2003
Posts: 6,818
Minot, North Dakota, USA
Build time has to do mainly with the number of blocks you use. If it takes 4 minutes to build a level with 1200 blocks, it'd take 16 minutes to build a level with 2400 blocks. I'm just saying that level geometry renders much more slowly than models. Try creating a mess of about 600 cube-shaped blocks. Then create a single model that's exactly identical to this and you should recognize if there's a difference. Using 600 models is not the same though. Level geometry can impact the frame rate, it just has a stronger influence on it than regular models do.


"You level up the fastest and easiest if you do things at your own level and no higher or lower" - useful tip My 2D game - release on Jun 13th; My tutorials
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