POV-Ray : Newsgroups : povray.binaries.images : Baking dirt maps with the mesh camera : Re: Baking dirt maps with the mesh camera Server Time
18 May 2024 10:50:00 EDT (-0400)
  Re: Baking dirt maps with the mesh camera  
From: Jaime Vives Piqueres
Date: 7 Sep 2012 03:24:05
Message: <5049a115$1@news.povray.org>
On 06/09/12 20:04, MichaelJF wrote:
> I'm just playing around with the macros and got the one or other idea
> about them. My model is my first more complex work with wings which
> collected some dust at my hard drive during the last two years. It's
> a kind of dragon [...]

   Wow! ...that's a clock? :O

> One of my thoughts was about using the GIMP. I may be wrong with
> that, but as I understand Gaussian blur, it takes the surrounding
> pixels and average them with a two dimensional Gaussian distribution.
> It should be possible to gain this with nearly the same approach as
> Jaime did with his repair_seams.pov, only adjusting to the pixel
> level by using an appropriate fraction of image_width for his
> bake_padding value. May be one has to put the central point more than
> once into an texture_map and average them. Has someone tried this so
> far? This could make the GIMP step superfluous.

   Yes, my repair_seams method was a quick hack... indeed what you
suggest could deliver a more accurate result, if I'm understanding
correctly.

> The next idea is due to the fact that the occlusion maps are used as
> pigment_patterns. Can there be a gain expected using hdri-images in
> place of the png?

   For texture baking, I don't think they would make much of a
difference, but having a wider range wouldn't hurt, I suppose.

--
Jaime


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