Displacement???

[heavyquiet]

What is the point?
I want to have some cavity on my material without changing of my original surface height, but when i apply minus number to displacement multiplier it shrinks entire body of my object and when i invert map i do not have right displacement.

Also how can i apply map to one side of object?

Without displacement:



Map:



Multiplier: 1



Multiplier: -1




Thanks in advance.

[dkendig]

Re: Displacement???

a picture is worth a thousand words

[thomthom]

Re: Displacement???

Invert the displacement map.

[heavyquiet]

Re: Displacement???

Invert the displacement map.

As i mentioned before, i tried to invert the displacement map too, but it does not work. i do not want to displacement map changes my original surface height, but i do not know what is wrong?


Thanks anyway

[**dubs**]

Re: Displacement???

Personally, I wouldn't use displacement mapping at all here, for the following; You only want the cavity to appear on one side of the object(?)

My approach:

Save the Map as vector linework, Illustrator 3 works well, import it to Rhino, position it close to your model where you want it, use 'Pull Curve to Surface' or 'Project Curve to Surface' command to get the curve onto the desired geometry. Once there use 'Extrude Curve Normal to Surface' or 'Ribbon' command and then set your extrude distance. Once this is done create an offset of your original sphere surface (offset equal to 'extrude normal' distance) and trim all the surfaces by each other and delete what you don't want. . . Then join everything together to a closed polysurface, you can then chamfer or add a radius to these edges as you see fit. . . ?

A picture paints a thousand words:

I knocked this up in Rhino quicker than it took me to write the above paragraph: (I added a Chamfer too, see it?)



For me this was not a displacement question, it's a modeling question. . . Quicker, easier and more controlable to edit the geometry. (no!?)

I'd just render it with the standard material and save a lot of effort.

Not quite what you asked, but achieves exactly what you were asking for. . . only applies to one side etc

Hope this helps

Regards

Stu

[**dubs**]

Re: Displacement???

Replying to a PM from HeavyQuiet. . .

The projection of the displacement occurs on both sides seemingly regardless of what I try. . . :-\

So, long story short, I'd still model it, if you want to apply 2 materials, you can, just model it as 2 seperate objects and apply a material to each. . .

The materials can be anything you like