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Forum: Work in progress
 Topic: How to replicate the grainy plastic texture of a car's dashboard?
Re: How to replicate the grainy plastic texture of a car's dashboard? [message #97573 is a reply to message #97554 ] Tue, 02 September 2014 05:01 UTC
avatar MrNib  is currently offline MrNib
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I can't visualize what the object is but can you represent the grain with a mathematical function? Maybe you could use something like the ShapeJS script, OpenSCAD, etc. to define the basic object and modulate the surface with the pattern equation? With ShapeJS you might be able to input a gray scale image to define the pattern, sort of like the 2D to 3D tool or the ornament generator. I'm guessing there are easier solutions using more advanced software packages but I seem to end up doing things the hard way...
Re: How to replicate the grainy plastic texture of a car's dashboard? [message #97592 is a reply to message #97573 ] Tue, 02 September 2014 10:18 UTC
avatar AmLachDesigns  is currently offline AmLachDesigns
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With Blender you can use the Displace Modifier to use a Texture to change the surface of a Mesh.

Create a Mesh with enough detail that the displacement can be effective, get an image of the 'grainy' surface and you're good to go.
Re: How to replicate the grainy plastic texture of a car's dashboard? [message #97622 is a reply to message #97592 ] Tue, 02 September 2014 16:08 UTC
avatar TonyRR  is currently offline TonyRR
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Registered: May 2013
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Thanks!

I've tested that function on Blender, but I don't have enough faces to apply the texture -the resulting bumps are too big!!-. Maybe I have to tessellate more the surface. I've to apply a modifier to divide the faces by 5 or more... Which would be the best modifier for that? Subdivision, triangulate?
I'm really starting with Blender... I'm normally using the more simpler 123D...


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Re: How to replicate the grainy plastic texture of a car's dashboard? [message #97623 is a reply to message #97573 ] Tue, 02 September 2014 16:10 UTC
avatar TonyRR  is currently offline TonyRR
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MrNib wrote on Tue, 02 September 2014 05:01

I can't visualize what the object is but can you represent the grain with a mathematical function? Maybe you could use something like the ShapeJS script, OpenSCAD, etc. to define the basic object and modulate the surface with the pattern equation? With ShapeJS you might be able to input a gray scale image to define the pattern, sort of like the 2D to 3D tool or the ornament generator. I'm guessing there are easier solutions using more advanced software packages but I seem to end up doing things the hard way...


Good suggestion!

I've thought in that but I've never used ShapeJS or OpenScad. I have to learn more, and more, and more...Any hint, help, will be much appreciated!

Many thanks for your help and attention guys!

Cheers


http://www.shapeways.com/shops/308bits
Re: How to replicate the grainy plastic texture of a car's dashboard? [message #97625 is a reply to message #97622 ] Tue, 02 September 2014 16:19 UTC
avatar AmLachDesigns  is currently offline AmLachDesigns
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TonyRR wrote on Tue, 02 September 2014 16:08

Which would be the best modifier for that?

If your surface is at all complex, then Subdivision Surface (SubSurf) is the Modifier to use on the object.

On the other hand, if you just have a plane, you can go into Edit Mode, select all Vertices and use Subdivide from the Mesh menu (normally) on the left
Re: How to replicate the grainy plastic texture of a car's dashboard? [message #97634 is a reply to message #97625 ] Tue, 02 September 2014 18:48 UTC
avatar TonyRR  is currently offline TonyRR
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AmLachDesigns wrote on Tue, 02 September 2014 16:19

TonyRR wrote on Tue, 02 September 2014 16:08

Which would be the best modifier for that?

If your surface is at all complex, then Subdivision Surface (SubSurf) is the Modifier to use on the object.

On the other hand, if you just have a plane, you can go into Edit Mode, select all Vertices and use Subdivide from the Mesh menu (normally) on the left



Many thanks!

I will try your hints.

Cheers


http://www.shapeways.com/shops/308bits

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