Thomas de Groot <tho### [at] degrootorg> wrote:
> On 8-10-2013 17:46, MichaelJF wrote:
> > Hi Thomas,
> > no, there is no crand in the texture. Janc had forgotten to post the link to the
> > other discussion here:
> > Janc's observations are right completely. But the texture /* is */ rotated, what
> > we see here is another phenomenon. It's more a matter of scale and the pixel
> > level. I will create a little animation with Janc's texture to illustrate this
> > issue within the next hours.
> That explains it. I read the newsgroup version and have not switched on
> povray.animations as I am not involved in such actively.
Thanks a lot, Michael and Thomas, I didn't know about these abreviations, I will
not forget them. :-)
We arrived to the same conclusion. Very nice.
I was testing with a checker texture at diferent scales, when using very small
scales it also seems to change and not rotating.
With small scales it interact with screen pixels and makes like a random "moire"
that keep changing because the different angle.
I upload a test of my Cone with a bigger scale, but you render a very nice
example of this effect.
We can call it, something like: "Small Scale Texture Screen Pixel Interaction"
Thanks a lot to all friends.
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Download 'rotatingrusttexture.mp4.mpg' (193 KB)