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On 09/06/2016 06:33 AM, William F Pokorny wrote:
>
> I'm off to try this latest refactor/texture with additional scenes -
> especially some with meshes.
>
> Bill P.
>
A reminder for others doing texture testing.
The documentation warns turbulence modifiers not wrapped in a warp{}
blocks might not run in SDL apparent order or even the same order as
other modifiers over time. I've run down a set of my own texture testing
differences to this cause.
A source code change after 3.7.0-stable and sometime before (B -
167ed19) causes 'some' materials I've picked up over time to appear
differently where turbulence is not specified in a warp {} block.
In other words, code such as:
pigment {
wood turbulence 0.135 omega 0.65 lambda 3
color_map {...}
rotate <0,90,0>
scale <1,0.2,0.2>
rotate <0,0.5,10>
}
Needs to be written as something like:
pigment {
wood
color_map {...}
warp { turbulence 0.135 omega 0.65 lambda 3 }
rotate <0,90,0>
scale <1,0.2,0.2>
rotate <0,0.5,10>
}
If one wants such textures to appear exactly the same in 3.7.1 as 3.7.0.
Bill P.
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On 09/06/2016 06:33 AM, William F Pokorny wrote:
>
> I'm off to try this latest refactor/texture with additional scenes -
> especially some with meshes.
>
> Bill P.
>
Attached is a modified case eliminating previously seen differences
leaving a difference where we have only specular highlights defined for
the surface. There is some slight difference in the shadows A (3.7.0)
->B (167ed19) which persists in all later versions.
Bill P.
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Attachments:
Download 'nk0314__f.pov.txt' (4 KB)
Download 'storynk0314_norad.jpg' (124 KB)
Preview of image 'storynk0314_norad.jpg'
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