View Full Version : Windows cutting thru walls
09-11-2008, 02:56 AM
I am new to C4D and am trying to make windows in a wall that cut the wall with a hole. If I model the window first and bool it with the wall only the interior part of the window geometry exists in the bool object; although the hole in the wall is there. I guess there must be a better approach to this sort of thing which I am not seeing, as am just learning the tool set.
I could make the hole then move a copy of the window to hole. This just seems a bit awkward.
09-11-2008, 04:26 AM
Just do an inner extrude on the wall face to approximate the size and shape of the window, then place your window/frame geometry into the hole. I'd probably stay away from bools for this task, as I imagine it would result in sloppy geometry and possibly some nasty shading issues.
If you really want to keep everything as one model, you could always model the window straight onto the hole you cut with the inner extrudes, though this could be quite time consuming if you have a lot of windows in your building.
The costly solution would be using the fusionThing plugin. Works great for adding windows to building models.
Finally, this (http://forums.cgsociety.org/showthread.php?t=331122) thread may help.
09-11-2008, 06:31 AM
You could also place alphas where the windows go then place your window hardware in the holes. Will cause jaggies if using geometry AA (looking through window).
If you plan on doing alot of these type things then a plug might be the best choice... or you could just do as suggested and model them in with inner-extrudes.
09-11-2008, 12:11 PM
Thanks very much for the usefull replies. I will try your suggestions. The windows cutter setup, mentioned by Stan, looked like a function that would be nice to have in the modelling tools.
09-11-2008, 12:14 PM
the base 80 tool looks very interesting indeed!
thanks for the hint
Sketchup windows and doors placement are also a possibility. Would love to see some of that functionality in C4D.
09-11-2008, 05:52 PM
If you have MoGraph, you can also use the Spline mask on an extruded spline.
09-12-2008, 03:02 AM
The "base80" solution consists of a custom made coffee node, it works super fine, saves a LOT of time to architects and city planners and is not free.
Contact me for more info.
09-14-2008, 07:39 PM
you could knife cut the windows, then split, delete the original and you'll have a seperate window
if the wall has depth, then close poly the resulting edges, bevel them then close poly again for the window.
base80's result would be the best to get more control over placement
09-14-2008, 09:37 PM
It's always better to model it than to depend on boolean unless you're animating, however to cut holes in the surface of objects using boolean just change the mode from "A subtract B" to "A without B".
09-14-2008, 10:22 PM
Modeling is always better, I agree.
If working from plans/pdf/cad, you can always use the spline to extrude
the walls to the exact thickness with all the windows and doors in place
for that elevation. If it's a multi story structure, this saves many hours
Our French C4D users have even developed a module system that's
also very useful.
09-14-2008, 10:55 PM
Booleans are great during the design phase and they are extremely fast especially in combination with my automatic window cutter.
Booleans are a great tool when composing facades parametrically, with xpresso placing all windows according to some formula.
09-14-2008, 10:55 PM
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