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Weathered by time - procedural only - shader available

Posted: Wed Jul 06, 2016 1:02 am
by arc en ciel
Hello,
here some tests I did using free scanned models from http://threedscans.com/,
it's all isl based, since I can't write ISL from scratch, I hacked all codes from material's database and codes found in the forum.
The idea is to smear, add dirts, damage by water, give appearence to polish non_homogenous manner.
It's basically some multi-coating shaders blended together :mrgreen:

have a super day

EDIT :
a variation tweaking snow/rough shader, I add color's pickers for shades and try differents function in Zangle, I can't get a gradient in x direction by now...
Image

Re: Weathered by time - damaged by water - procedural only

Posted: Wed Jul 06, 2016 3:01 am
by Jay-ko
Really nice! thanks a lot

Re: Weathered by time - damaged by water - procedural only

Posted: Wed Jul 06, 2016 3:15 am
by FakeShamus
very nice!
for directional control, look at the code of this one:
http://www.indigorenderer.com/materials/materials/1132

or this one:
http://www.indigorenderer.com/materials/materials/1133

"snow cover rough" was the initial experiment and I improved it later :wink:

Re: Weathered by time - damaged by water - procedural only

Posted: Wed Jul 06, 2016 5:48 am
by pixie
arc en ciel wrote:Hello,
here some tests I did using free scanned models from http://threedscans.com/,
it's all isl based, since I can't write ISL from scratch, I hacked all codes from material's database and codes found in the forum.
The idea is to smear, add dirts, damage by water, give appearence to polish non_homogenous manner.
It's basically some multi-coating shaders blended together :mrgreen:

have a super day

EDIT :
a variation tweaking snow/rough shader, I add color's pickers for shades and try differents function in Zangle, I can't get a gradient in x direction by now...
Image
Tonight when you're sleeping I will sneak into your computer and will steal this material of yours, it's amazing! :D

Re: Weathered by time - damaged by water - procedural only

Posted: Wed Jul 06, 2016 7:04 am
by galinette
What about a procedural pigeon dump shader?

Re: Weathered by time - damaged by water - procedural only

Posted: Wed Jul 06, 2016 11:47 am
by lycium
awesome material!

the bird poop will eventually be possible etienne : D i guess isl needs a raycast function, to detect silhouettes above the surface points.

Re: Weathered by time - damaged by water - procedural only

Posted: Wed Jul 06, 2016 8:08 pm
by snorky
:lol: :lol: :lol: :lol:
galinette wrote:What about a procedural pigeon dump shader?

Re: Weathered by time - damaged by water - procedural only

Posted: Wed Jul 06, 2016 8:32 pm
by OriginalplanĀ®
pixie wrote:Tonight when you're sleeping I will sneak into your computer and will steal this material of yours, it's amazing! :D
:D :D

Re: Weathered by time - damaged by water - procedural only

Posted: Fri Jul 08, 2016 2:39 pm
by arc en ciel
hello,
thank's all.
@ FakeShamus : yes, I'll have a look to your mats :D . Some cool formulas for gradients come from sloopy-paint by Fused and dryingSpeed / Thickness system by CTZn... ISL by ONO and Galinette are really inspired too... and all other people :)
and now some images, without postprod, maybe a little too colorful :mrgreen:

Re: Weathered by time - procedural only - shader available

Posted: Mon Jul 11, 2016 4:50 am
by arc en ciel
hello,

I share with you a simplified version of this shader :wink:
reference image is AEC_LS

ISL in blend channel is used for manage the fusion between Mat A and Mat B
ISL inside color channel or exponent channel manage color, I try a clamp in global output for simulate density.

probably some of you will recognize their codes :lol:

Re: Weathered by time - procedural only - shader available

Posted: Fri Jul 15, 2016 9:42 am
by arc en ciel
with meanCurvature(), v.3.8.5

Re: Weathered by time - procedural only - shader available

Posted: Fri Jul 15, 2016 9:50 am
by OnoSendai
fantastic :)

Re: Weathered by time - procedural only - shader available

Posted: Wed Aug 17, 2016 3:52 am
by CTZn
Nice serie, I like the simple stained polished metal fom statuettes_49m_944spp_614ksps.jpg.

You could add a vertically stretched noise to mix angles in order to smear the effect and avoid neatly bordered regions.

Re: Weathered by time - procedural only - shader available

Posted: Wed Aug 17, 2016 6:03 am
by zeitmeister
This is so cool!


Cheers, zeiti

Re: Weathered by time - procedural only - shader available

Posted: Wed Aug 17, 2016 10:09 am
by arc en ciel
CTZn wrote:Nice serie, I like the simple stained polished metal fom statuettes_49m_944spp_614ksps.jpg.

You could add a vertically stretched noise to mix angles in order to smear the effect and avoid neatly bordered regions.
the stained polished metal guy on the right ? it's a live-tweak result and I don't save it... it looks like a coat with ISL in Thickness with phong substrate maybe AG or CR...
I try to reproduce it here, but I could not not prevent me to put some ISL in Roughness too, so disable it for have only peaks-and-valleys effect, I named it SC_crevasses_Metal.igm. "Crevasses cursor in Thickness chanel increase or dicrease solarize effect Image
http://www.taringa.net/post/arte/181612 ... brick.html
--thank's all