[tok]

An issue concerning a pretty simple material. In order to achieve an uneven wall without repetitive patterns I created an mxm containing only one BDSF, Reflectance white (210), just this bump map (only larger, 2048 x 2048 size, bump 50.000)



scaled the material via Sketchup to 10 m x 10 m, applied it to the model in Studio and selected a resolution of 5120 x 3840. The preview looks ok,



but the render shows patterns that the material does not contain:



What's that?

[Fernando Tella]

The pixels of your bump map? (Wild guess) That is how a 2048 pixels image would look if resized to 5120.

[Tea_Bag]

Hey,

This might also help

http://www.maxwellrender.com/forum/view ... highlight=

[tok]

Here is a detail of the original bump: 250 x 250, absolutely smooth.



The strange silky patterns are produced by Maxwell, I am afraid. Any chance to avoid them?

[zoppo]

50 is quite a high value and nl is warning in the manual not to use them.
have you tried lowering it?

[tom]

tok, email me your map and let me fix it for you.

[tom]

OK, and here's the video of solution for everyone

THINK! ABOUT IT

[KurtS]

very good turorial, Tom. In what file format did you save the 16-bit map?

[tom]

Thanks Kurt!

As you may also verify from the manual page 21, only PNG and TIF allows saving 16 bit among supported formats. Personally, I always prefer PNG.

[tok]

Great! Thanks a lot, Tom!

[sandykoufax]

Very nice tip.

thank you master.

[Bubbaloo]

Your knowledge is vast. Thanks for sharing some of it!

[rshanks]

Thanks Tom! Good info in the video and great solution for no audio

R

[simmsimaging]

Thanks Tom - that helps a lot! Very clever use of Wordpad

b

[tom]

Very nice to hear it worked