Octane Gradient & OSL Gradient Issues

[blastframe]

Hello,
I'm trying to create radial gradient that does not repeat as it does with a SawWave texture. Also, the SawWave is huge so I have to scale it down a lot to fit my object in real world scale. Here is a screenshot of the Octane Gradient set to Radial:

Octane Gradient

This is what I'd like to achieve (this was using the C4D gradient, which I'd rather not use for performance reasons):

Cinema 4D Gradient

I searched the forum about gradients and discovered that there is a C4D-esque shader in the OSL shaders. When I tried it, I got an error - I think the code may be broken.

Code: Select all

<node 'Osl Texture'>: warning: Input parameter 'r' is not used

I couldn't find any documentation on how to use it (or the other OSL shaders). I am getting this result:

OSL Gradient

Can anyone help me to achieve this radial gradient with either the Octane Gradient or OSL shader, please? Thank you!

[bepeg4d]

Hi blastframe,

About Octane Gradient in Radial mode, it is designed to work with 100x100cm plan.
To avoid the repetitions, just use the Scale values in UV Transform to match the scale of your plan, and use the Gradient sliders to define the hardness/dimensions of the circle:

But, if you disable the Auto baking option for C4D Shaders, and enable only the OSL automatic translation, you should be able to use the C4D Gradient node with no issues in 2020.1.5-R4... you should see Gradient(OSL) in the title of the node, if correctly enabled:

If you want to use a different OSL script, firstly you need to pipe it into an Octane Gradient node to better control the coloring, then you can use the circles1.osl script from /patterns/ collection:

Or the gradient.osl node, but it is just the same as the C4D Gradient node with OSL option active... the error messages are not critical, it means that a specific input value has not been used in the script:

ciao Beppe

[blastframe]

That is excellent support, thank you Beppe!