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Author Topic: Ideas / advice to clip A2S object with a surface  (Read 654 times)

theedge

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Ideas / advice to clip A2S object with a surface
« on: May 06, 2015, 06:17:45 PM »
Hi,

I'm trying to clip the upper part of a building generated with A2S that has a complex roof. Here's an image of simplified version illustrating the situation.

I tried adding a probollean on top and subtracting the roof but the result is very random : sometimes when updating the RC object within, everything breaks and the boolean results in a mess. Also if I add detail in the mesh, the boolean can take ages to perform and becomes hardly possible to adjust the RC object.

Is there another way to achieve this ? A workflow similar to clipping spline but with a surface would be cool.

Thank you.

Paul Roberts

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Re: Ideas / advice to clip A2S object with a surface
« Reply #1 on: May 07, 2015, 11:22:34 AM »
Hi,

Unfortunately there isn't currently a RailClone feature that would allow you to do this, so max's Compound objects are probably the best way to go if you want to remove the geometry. If you are using V-Ray though, you might find a trick that involves using the VRayDistanceTex in a materials opacity slot is another way to hide the the geometry at render time. You can read more about this technique here, I just tried it with a RC object and it works fine and maintains instancing.



Many thanks,

Paul

« Last Edit: May 07, 2015, 11:26:34 AM by Paul Roberts »
Paul Roberts
iToo Software

theedge

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Re: Ideas / advice to clip A2S object with a surface
« Reply #2 on: May 07, 2015, 11:27:55 AM »
I never use VRayDistanceTex, but that seems a very good situation to test it !
I'll give it a try. Thank you.

theedge

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Re: Ideas / advice to clip A2S object with a surface
« Reply #3 on: May 07, 2015, 03:00:14 PM »
Yep works great with VrayDistanceTex ! I don't have to fight with those booleans no more :)
Thank you.

Paul Roberts

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Re: Ideas / advice to clip A2S object with a surface
« Reply #4 on: May 07, 2015, 03:12:04 PM »
That's great! Glad we could help out. :)

Many thanks,

Paul
Paul Roberts
iToo Software