alright. Getting tired after a day of tweaking.

Second, overhauled, StepNoise version. Several things learned:

- to be careful with the /scale/ of the grains. This is as good as I 
dare to go. Larger minerals become increasingly unbelievable, so one 
needs to find the balance (as with the turbulated cells obviously, but 
StepNoise does a much better, although not perfect, job).

- the mask for the pigment_pattern needs a /very/ careful adjustment. 
The present one is good but could probably be improved further. Good 
enough for now.

- white grains are present but hardly visible. In the first version they 
were placed at the wrong place within the colour_map, rendering rings 
instead of mineral grains. Corrected that but need now to be enhanced a bit.

- sslt would probably increase realism, even in the frosted version. I 
am going to look into that.

-- 
Thomas

Post a reply to this message

Attachments:
Download 'dakotagrains_sn_test2.jpg' (95 KB)

Preview of image 'dakotagrains_sn_test2.jpg'