Octane Displacement can't color correct

[hdace]

Hey there, I was just wondering if it would be possible in future to adjust the gamma on a displacement map. I have to go into Photoshop to do it and there's a lot of trial and error.

I'm creating a landscape with a single polygon and using the d-map to create the hills. It looks really nice, but I want to adjust the hill falloff. I don't want to change the base height or the height of the top of hills, just the shape of the hills. I assumed I could do this by putting Octane ColorCorrect Texture node in between the Texture Image & Displacement nodes, but it just turns Displacement off. An even easier way would be to simply change the gamma setting in the Texture Image node itself. Again, this has no effect.

Cheers...

[juanjgon]

Yes, this is known limitation. The displacement mapping in Octane only supports the texture image node over an object with an UV map. No other nodes are supported.

I suppose that the displacement code is very critical to allow the evaluation of complex node trees at render time. Any image processing function, projection, procedural and so on could make the render too slow, and even crash the NVidia driver in Windows.

-Juanjo

[gordonrobb]

you could load your image into a normal LW image node and mess with it, then input that into the 'procedural' input in the Octane texture node, Use that to drive displacement. That way you can mess wit it, and it will rasterise realtime-ish

[hdace]

Thanks Juanjo. Gordon-- good idea...