CSG Subtract is fine to use with no probs
So long as you dont over do it
ie the shape you want to Subtract (cut out) is not to complicated
Its fine for doing windows,doors and basic shapes, but when you start going complicated thats when you start running into probs
Ive used it now for 3 years and its never caused me a problem in any of my maps ive done
If you remember to keep it simple you should be fine

At the end of the day it's about judging the outcome, do a Google search for Radiant CSG related errors or even search these forums then compare with errors associated with manually clipping brushes or even making new ones, to me it does not make sense why people use CSG still.

techno2sl writes...

Yep, you can dynamically spawn a collmap onto just about anything to make it solid.

The method was devised by Treyarch to patch up maps after going Gold, and saved them having to re-compile the stock maps.

It will be good for finishing off maps after beta testing, as if an exploit is found on your map, instead of re-compiling, you can patch it up by dynamicall spawning a collision onto it via script.

So lets say i have a non solid bench. How do i find the coords? and do i just find the cords of the center of the bench or something?

Also why isn't there a solid version of these static iteams? Im finding that almost all the objects,such as tables and clocks ECT, are static.

edited on Jan. 5, 2009 07:18 pm by Stahlsta210

You can easily get co-ords from radiant by selecting any entity and hitting "N", then check the 'origin'.

Static means 'not moving' or 'no moving parts', whether they have collision map files or not was entirely up to the development team during their creation. You can make your own collmaps though, load the model and use a clip texture on it.

Create a collmap for models you want to use that don't have them.

1. Start a new map, add your model in and make sure it has an origin of 0,0,0.
2. Draw a brush around your model and "encase" your model inside it. Shape the brush so it matches closely to your model.
3. Select the entire brush (not the surface) and apply a clip texture to it.

This part is very important.
4. Copy the name of the model you used and delete the model.
5. Save your map in the \raw\collmaps folder with the exact same name of the model you used.
6. Open your map and add in the model you just made the collmap for. Save your map.
7. Compile and run your map and you should now have a model that you can't walk through anymore.

Doing it this way allows you to resize the model only and not worry about resizing the clip brush. The collmap will automatically resize to whatever the modelscale is.

so lets say i have a bench. i would put the bench at 0,0,0 then i would take caulk brush and make a box around the bench that is a close fit. then i would put a clip texture on the brush.

Do i have it right?
Do i have to make a new map for each model i want to do this to?

You would select the caulk brush and then use the clip_nosight_wood texture, so essentially you're making the brush out of the clip texture you want to use. You would only need to make a new map for the models that don't already have one in the \raw\collmaps folder.