Textures with Pyramids

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Textures with Pyramids

Postby ryangarnett » Fri Aug 03, 2012 7:52 pm

Hello All,

I was wondering if SketchUp models can handle textures (.jpg, .tif) that have pyramids. In the geospatial world raster files commonly have pyramids built. The pyramids are used with distances, to help performance. I am wondering if there is a way to do the same in SU. So having a texture with different pyramids, which are represented to distance of viewing.

Thanks...
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Re: Textures with Pyramids

Postby mitcorb » Sat Aug 04, 2012 1:19 pm

Hi.
I read your post, but wasn't familiar with the pyramid/ geospatial question. So I looked here:

http://www.google.com/url?sa=t&rct=j&q= ... FKDuYb5k-A.

Thanks for sparking my interest- and I wish I had some kind of answer.
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Re: Textures with Pyramids

Postby ryangarnett » Sat Aug 04, 2012 3:55 pm

Glad I sparked your interest. I was hoping there would be a way to do this within a SketchUp model. It would be great to be able to have have levels of detail associated to the texture.

Thanks again...
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ryangarnett 
 

Re: Textures with Pyramids

Postby Aerilius » Sat Aug 04, 2012 5:17 pm

If you mean by pyramids something like mipmapping (and not something from stone), then it's possible that SketchUp supports it (I think I once found a hidden key indicating that) but it's something that is done automatically and users don't need to care about.
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Re: Textures with Pyramids

Postby ryangarnett » Sun Aug 05, 2012 12:33 am

Yes a mipmapping is similar to what I am looking at. But I want to be able to define the switching range of the mipmap. The human eye identifies differences at different distances, so I want to be able to identify the switch in that change. Openflight files have the ability to have different LODs, which user defined switch ranges. To my knowledge, SketchUp does not support LODs or switch ranges, therefore, I was thinking of using texture "mipmaps" as a means to accomplish part of this.
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