simple gradient shader

[arc en ciel]

here is my first ISL code : simple gradient shader


some images and a pigs file for play with it

yellow to white on bootle, bottom to top


horizontal and vertical gradient (change x for y or z in x(posOS()) for gradient orientation)


à bientôt !
happy renderings

[contegufo]

Hi

And 'noticeable when a user writes the lines of code in a shader. Unfortunately the reference to C4D and Photoshop for multiple shades is embarrassing.

[Oscar J]

Not sure your sentence makes a lot of sense contegufo. A user can choose whether he/she wants to use ISL or not. There's nothing embarrassing with ISL - quite the opposite, Indigo's ISL is a powerful tool that can do things many other renderers can't.

[arc en ciel]

yo,
@contegufo :
what do you mean by reference to multiple shades is embarassing ? are you talking about precision of colors ? precision of position on the mesh ?
have a look to old threads about ISL, that's really interesting, and some materials are incredible, some guys right there are crazy's heavy's math's codemonkey, and ISL is dealing directly with Indigo's heart so it's really powerful.

smoothPulse + smoothPulse = tablecloth

Code: Select all

	lerp(
		paramcol1(),
		paramcol2(),
		smoothPulse(paramlissage_1()/paramFormat(), 
					paramlissage_2()/paramFormat(), 
					paramlissage_1()/paramlissage_2(), 
					paramlissage_1()/paramlissage_2(),
					(sin(x(posOS())/paramFormat()))*paramlongueur())
		+
		smoothPulse(paramlissage_1()/paramFormat(), 
					paramlissage_2()/paramFormat(), 
					paramlissage_1()/paramlissage_2(), 
					paramlissage_1()/paramlissage_2(),
					(sin(y(posOS())/paramFormat()))*paramlongueur())
		+
		smoothPulse(paramlissage_1()/paramFormat(), 
					paramlissage_2()/paramFormat(), 
					paramlissage_1()/paramlissage_2(), 
					paramlissage_1()/paramlissage_2(),
					(sin(z(posOS())/paramFormat()))*paramlongueur())
	)

2 opaques bottles have only one smoothPulse on Z

is it possible in ISL to have something like case function ?

thx