[ISL][workshop] Indigo Shading Language

[fused]

wow, thats pretty awesome!

[Borgleader]

That is pretty cool, with a little tweaking you could easily do bricks

[Stur]

Thx guys.

Yes Borgleader, I think I could do bricks as it is easier than stones with beveled edges.

Here is another try, I used my previous script but changed some values.

[CTZn]

Awesome contibution Stur !

And darn usefull, I'm saving it to disk right now, thank you too

[Stur]

Really ? I'm honored ^^
I'm looking forward to see what you'll draw with my texture.

ISL is fun after all I will continue to experiment. (I also encountered a few crashes)

[Stur]

Here is another experiment with the script. I extruded the plane, and bad things happen at angles. I tried a few unwrapping methods, I tied to place the seams at other places, no matter what I do, the result is the same

I've also noticed a strange behavior : getStones() substract a noise map to the brick map. I multiply the noise map by a value to make more or less strong. What is strange, is that if i put a too small values (to get a thiner noise map), suddenly there is no displacement at all.

Code: Select all

def myNoise(real conc, real f) real:
	(
		(
			fbm(getTexCoords(0) * conc, 10) + 1.0
		) / 2.0
	) * f

#
# getStones() : blends the brick wall with the noise map to draw a stones like map
#
def getStones() real:
	max(
		min(
			getBricks(0.1, 0.05, 0.002, 0.002)
			* 20.0
			, 1.0
		)
		- myNoise(50.0, 0.5) # if i reduce this value, 0.5 to 0.2 for example, then  there is no displacement
		, 0.0
	)

[CTZn]

What is strange, is that if i put a too small values (to get a thiner noise map), suddenly there is no displacement at all.

This is the displacement_error_threshold, set it to a negative value to disable it, modify the igs by hand if it is hardcoded in the exporter. It's supposed to do just that, not subdividing details below a given height.

For the border thing you want to disable subdivision smoothing like so:

Code: Select all

<subdivision_smoothing>false</subdivision_smoothing>

Indigo is smoothing UVs with vertices positions, too bad (I think new UVs should be interpolated linearly or optionally smoothable, my 2cts).

And yes I have an obvious idea in mind, somehow I'm surprised I was not beaten at it yet but I'll give it a try. This stuff is starting to look usefull.