Cineversity

I have a box that I am wrapping around a spline using a spline wrap deformer and Dr. Sassi already gave me super good advice for my UV mapping and texturing. Thanks again!

Now I want to change the material on the geometry over time. So first it builds up using one material and then, another material will be growing over the old one.

Octane supports vertex maps(it also supports MG color shader) and my current setup works using a field on the “unsplinewrapped” object, that drives the vertex map in an arrow shape and then afterwards gets splinewrapped. This already works, however I maybe need a third material to animate on and I’m kind of limited by the two color vertex map.

Does anybody have any suggestion how to achive this? My basesetup is the cube that is growing by the splinewrap “end” parameter, that is linked to the texture tiling of the texture tag in order to not get distortions while the splinewrap is growing.

Hi visutainment,

You are referring to the thread:
https://www.cineversity.com/forums/viewthread/3379/
Just in case someone is following.

In Cinema 4D, you can animate the link inside the Texture Tag, and that blends from one Material to the next. The effect needs rendering.
An example file is here:
https://www.amazon.com/clouddrive/share/lvLfollvkCAWWad1Ni9WAEFAb5SzAZOGiNFGWy5MXNh

The effect is mentioned in the second text line of the manual:
https://help.maxon.net/us/#TTEXTURE-ID_TAGPROPERTIES

Going by Casey Hupke, the Layer Shader works for Octane:
02:32 Octane Layer Shader Support
https://www.cineversity.com/vidplaylist/particle_effects_and_fluid_simulation_siggraph_2015_rewind/

Which means you could just add as many layers and change from the top to the bottom the opacity for them, to have the blend effect.

Besides, I’m not familiar with Octane, but what limits the use of several Weigh Maps?

Have you considered a Video Clip, where you have all your textures layered and blended? Since I do not know your project, this would be perhaps not practical.

All the best

Thanks again Dr. Sassi!

I do however need a transition between the materials. For example the top third of the arc should be red, the mid yellow and the bottom third green. With a smooth transition in an arrow shape for example. And that I want to animate, which I do at the moment using the vertex maps with fields.

Hi visutainment,

Let’s say on frame zero the textures are as you say, top third red, then mid yellow and last third green. The transitions among those are smooth and in an arrow-shape.

How should it look on a later frame? You said animate, so what needs to change? Do you want the arrow moving toward the top, eliminating the red and increasing the yellow, or only the green?

You mentioned “…growing over the old one…”, which indicated in your initial post that you see one material then the next and so on. The description with thirds sounds different.

Please let me know so I can create suggestions.

Cheers