Forum: Carrara


Subject: Bevel an extrusion

pja opened this issue on Dec 04, 2003 ยท 4 posts


pja posted Thu, 04 December 2003 at 8:23 AM

Is there any way to quickly apply a bevel to a simple extrusion object? I used to work with Infini-D and was able to bevel any extrusion from the object prop. Carrara only seems to do it with text. Also can not turn an object into a negative and subtract from another object. So simple in Infini-D why can't Carrara do it?


Hoofdcommissaris posted Thu, 04 December 2003 at 9:33 AM

In Carrara3 it is very simple. Ad a cross-section and you can bevel the front and the back. Like text in 1 and 2.


bluetone posted Thu, 04 December 2003 at 9:42 AM

In the Spline Model editor room you can add bevels to objects. Not yet available in the wertex editor or the assemble room. To do a boolean subtraction, you need to set the Quality setting of the object VERY high in the modelling room. Then in the Assembly room, chose both items and select EDIT>3D Boolean. This will bring up a dialog box that will allow for doing the subtraction. Choose the option thats right for your situation. In the capture you'll notice I subrtacted a sphere from a cube, then a cube from a sphere. Both primitives were identical before the boolean subtraction was applied. Please note: give each item a seperate name. (Not just the default 'Vertex Object.' Carrara uses this name to define which object to subtract from which. Hope this helps! Happy rendering!

TheGigaShadow posted Thu, 04 December 2003 at 10:13 AM

"Also can not turn an object into a negative and subtract from another object. So simple in Infini-D why can't Carrara do it? " bluetone's description is correct. However... If you are used to doing it in Infini-D, Carrara does it differently. In Infini-D the booleans were "renderd booleans" in that they only showed up when you rendered (with ray tracing only) the objects. In Infini-D if you set the cube to positive and the sphere to negative when you rendered the sphere would be subtracted from the cube but the two whole shapes (cube & sphere) still existed. The geometry was not actually changed. This was visiable in the wireframe. In Carrara when you do a boolean the object's geometry is changed forever. Subtract a sphere from a cube and you're left with an entirely new piece of geometry. The sphere will be totally gone and the cube actually altered. Infini-D's way of doing it was kinda cool in that you could animate booleans but got kind of cumbersome in the sense that if you used a lot of booleans in a scene you'd have a lot of "negative" shapes that were still actually there cluttering up the scene. When doing it in Carrara be sure to make a back up copy of your model before you make any boolean changes. No matter what you start out with (a primitive, an object you made in the spline modeler) once you boolean you will be left with a vertex object. If it was a spline object you'll no longer be able to edit it in the spline modeler.