Warzone 2100 Forums

Typical environments contain 1000-5000 total renderable objects, including static meshes and skeletal meshes. For reasonable performance on current 3D cards, we aim to keep the number of visible objects in any given scene to 300-1000 visible objects. Our larger scenes typically peak at 500,000 to 1,500,000 rendered triangles

Your right in saying this is a hard question.

A few fundamental questions are: 1. What is your target platform, 2. What engine are you using, and 3. What type of game is it.

If you are going to be on all consoles and the PC then you will need to hit lowest spec of them all combined. If you are going only to the PS3 then you can handle much more polygons but at the sacrifice of shader complexity. The 360 is the opposite is it will handle shaders well but not as many triangles. Keep in mind that almost all of my experience is with the unreal 3 engine so its hard for me to say what the limitations of other engines are.

Also if your game is a FPS like gears of war you may have much smaller areas and can allow for higher quality meshes. If you are in an MMO, your limitations go through the roof and you need to think of clever ways to make things look good at such harsh limitations.

From what I know the UE3 engine can handle around 500k triangles rendered but where it falls apart is the object count. Unreal likes you to keep the loaded actors at one time to around 1800 last time I checked.

Also keep in mind that there are so many different places to bottleneck, whereas 1 advice would be good for something, but totally neglect something else.
For examples, you have the polygons on a mesh itself, and how many times it is copies around in the level you are making. You take much more of a memory hit for loading that unique mesh, but far less for each of the instances in the map.

This ends up as a balancing game between system memory, texture memory, object count, and performance in general.

It sounds like to me you are in some sort of pre-production mode, in this mode its good to set the look and quality of the game up front while the engineers build up the engine and eventually get some sort of limits for each discipline.
Almost every pre-production will completely blow any reasonable budget up front because they are still trying to define how the game should be made and set certain standards in quality and gameplay. Of course in this its always good for the experienced guys to keep a sanity check on what is being done to make sure its not all throw away work (which unfortunately many pre-productions end up being).

For some good practices I would say to try and keep your object count around 2k for a streamed area and try and keep polycounts reasonable. If the mesh is some sort of hero piece then it may be ok to have a few thousand triangles but always be prepared for the inevitable optimization pass before ship.

For more modular pieces I would suggest keeping them down to below 1k if possible. The reason being that they will be sprinkled through the map so much and it will add up very fast (rubble, concrete, dirt piles, trash, pillars, etc).

I cant say much about characters, my experienced is a little bit over specialized Im afraid.

I hope this can be of some help, of course everything I said could be useless for many types of games and the engineers really have to power be able to make the magic happen and make the impossible, possible.

Riki