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I didn't see anything with a search, but it's been asked before it seems.

I need animated water texture...no displacement, just a procedural that has movement in a realistic way. Anyway to convert/use lw's native textures that allow for this? We must have this for ArchViz...thanks.

As a bandaid I was able to render out an image sequence texture generated from LW...but the image sequence isn't adding enough bump for my taste. And on another note, I figured I would see caustics naturally being a PBR..but I see none. Am I doing something wrong? Using specular material node. Thanks.

To get physical caustics, you need to get physical bro, like Olivia Newton John always suggested. Displace that bad-boy. I've done this plenty, as one client has water-related products. You can't get good caustics (or real looking water, for that matter) with a flat plane... at least not any way that I know. Subdivide your plane a buttload, make a UV, be sure to have smoothing on, and displace away. You may poop your pants a little when you see this in action.

Well that´s one way to explain things.

FrankPooleFloating wrote:To get physical caustics, you need to get physical bro, like Olivia Newton John always suggested. Displace that bad-boy. I've done this plenty, as one client has water-related products. You can't get good caustics (or real looking water, for that matter) with a flat plane... at least not any way that I know. Subdivide your plane a buttload, make a UV, be sure to have smoothing on, and displace away. You may poop your pants a little when you see this in action.

Made my day this Friday! Ha. Brand new to Octane and PBR's so didn't realize Bump wouldn't do it. I guess that makes sense...it needs to be real to render real...so the water is def going to be at different heights etc...

Thanks, and I'll be sure to grab some "depends" before I open IPR.

FrankPooleFloating wrote:To get physical caustics, you need to get physical bro, like Olivia Newton John always suggested. Displace that bad-boy. I've done this plenty, as one client has water-related products. You can't get good caustics (or real looking water, for that matter) with a flat plane... at least not any way that I know. Subdivide your plane a buttload, make a UV, be sure to have smoothing on, and displace away. You may poop your pants a little when you see this in action.

We'll I made a UV, turned smoothing on, added my texture ran it through displacement node then to specular material and the surface disappears. I remember reading somewhere that this is because no UV...but I have a UV. What may I be missing? Ready to mess my pants!

Can you share your sample scene to test it here?

-Juanjo

juanjgon wrote:Can you share your sample scene to test it here?

-Juanjo

Sure. The texture here is a sequence but the first frame should do for testing. I'm sure I'm just doing something wrong... Thanks for the help.

Few tips about displacement in Octane:

- Octane only supports displacement using the object UV map. The projection node doesn't work for the displacement, so you need a proper UV mapped mesh. As you can see in the attached images, the UV available for the water surface is not right for rendering, you need to apply a Y axis planar projection in the modeler first.

- Octane doesn't need a lot of subdivisions in the mesh to render the displacement. Only a quad or a simple triangular circle mesh is enough.

- Displacement is not compatible with any other node. For example you can't use the color correction node between the texture and the displacement nodes. You should use only a simple TextureImage->Displacement->Material nodes tree, like you can see also in the attached image.

-Juanjo

Ah some very good tips. Thank you....I'll give those a shot! Thanks again.