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Polygon reduction Tool // New Users

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Post by thescottishbloke // Oct 6, 2008, 1:35am

thescottishbloke
Total Posts: 56
 Hi,


Can someone please tell me where the above tool is in Truespace 7.6 as I want to try and reduce the number of triangles in my model? Is it any good?


Thanks,


:banana:

Post by RichLevy // Oct 6, 2008, 2:19am

RichLevy
Total Posts: 1140
pic
This is it.
It works pretty well, you will get a menu in the stack you can adjust the level of detail you wish to remain. I don't use it a lot but I do use it and I find it to be pretty good so long as you are not too aggressive with the amount of reduction you want.

Keep in mind some models will work better than others...

Rich

Post by TomG // Oct 6, 2008, 3:41am

TomG
Total Posts: 3397
 It's a very good tool and usually does a nice job. It does depend on your model, and your shaders too to some degree. I have been able to use extreme values like 10% on some objects (eg a rounded vase imported from another application, which was very high poly).


It does depend on the model though, some might not work so well.


Note that the amount of reduction is entirely variable using the slider, it doesn't simply reduce the polys and give you a static mesh. This can reduce the load on the render engine, but will not reduce the file size (since the original object is still stored inside there). To reduce file size (eg for use in an online shared space scene where download time would be an issue) I suggest using Collapse History, and then entering the object in the LE and deleting the now-unnecessary poly reduction part. This in effect gives you just the low poly mesh, no more copy of the high poly mesh (and no way to adjust the slider of course, now it's permanent!).


Note that the poly reduction tool has a close twin that also uses the high poly mesh to make a normal map for the low poly, ideal for (say) keeping the look of creases and pockets in clothing that were originally done in modeling (rather than texturing) while removing the geometry that made those.


HTH!

Tom
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