GIMP Script: Thatch

[RobA]

OK -

I discovered what could become another use for this script... making mountain heightfields.

From above (gimp alone):
mtn_final.png

Rendered in 3D:
hf1.png


I started with a selection filled with a shaped spherical fill:
mtn_hf1.png

Then using this pattern I made:
pattern1.png

I ran the thatch script with 7 sides, no bumpmap or softlight, merging all layers down. I set the result to multiply, 30%:
mtn_hf2.png

cont...

[RobA]

Then using this pattern:
pattern2.png

I ran thatch again, setting the result to 30% multiply as well:
mtn_hf3.png

And a third time with this pattern:
pattern3.png

With one last run of thatch, with the result to 30% multiply:
mtn_hf4.png

I think by tweaking the patterns, possibly making them more turbulent or noisier, I could even get closer.

-Rob A>