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The dreaded bump map

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The dreaded bump map [message #47347] Sun, 22 April 2012 18:00 UTC Go to next message
avatar Giga Bread  is currently offline Giga Bread
Messages: 16
Registered: August 2011
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Junior Member
I'm well aware that bump maps can't be used in 3D printing, but a couple months ago a user provided a step by step process on how to "burn" the bump map into the geometry so it can be printed.

Unfortunatley, I haven't been able to locate this in the forum and was wondering if anyone had any idea how to do it.

I predominantly use Sculptris and Hexagon but I am slightly familiar with blender.
Re: The dreaded bump map [message #49939 is a reply to message #47347 ] Mon, 18 June 2012 05:05 UTC Go to previous messageGo to next message
avatar wiwa  is currently offline wiwa
Messages: 33
Registered: June 2012
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In Lightwave 3D there is something called a "displacement map" that can be mapped onto objects like a standard bump map. The result can be exported into the geometry. You have to subdivide (NURB) or have a very high polygon count to make it work.

I think there would be something similar in Blender; although I haven't used it in maybe 10 years?

Aha: http://wiki.blender.org/index.php/Doc:2.4/Manual/Textures/In fluence/Material/Displacement

Re: The dreaded bump map [message #54179 is a reply to message #49939 ] Mon, 17 September 2012 20:57 UTC Go to previous message
avatar MikeP  is currently offline MikeP
Messages: 48
Registered: August 2011
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Yes. "Displacement map" is the term. 3dMax does it too.

Displacement maps are usually black and white, similar to a bump map but they effect the geometry directly rather than just the render like a bump map.

The cost is you need to have a suitably dense mesh so the details show up.

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