To my eye the C3D render looked slightly cleaner at ~100 samples than the Cycles render, but obviously it took a fair bit longer.Īll of this was on an Macbook Pro with an M1 Pro Max.Įdited: put images inline and added C3D render (which was rejected due to size). Just by changing camera type you can make the look so dramatic. Ive tested without caching the caustics photons and the flickering happens then as well. Just doing some test and find an interesting behaviour with caustics (light tracing). The object is static with a moving camera that has DOF. I took the stats shots around the 100 sample point, but I wasn't able to figure out how to export the blender render until it got to 250 odd samples. As Im testing LuxCore for Blender, Ive encountered an issue where I get flickering caustics even with persistent photon mapping caching turned on. The Cheetah image is far richer in terms of internal reflections and caustic shadow detail. Mon 7:37 pm It works with any light, but you need a tight beam of nearly parallel light rays for a result like in the image you linked. I haven't spent nearly as much time tweaking the blender scene as I did, once upon a time, with the Cheetah 3D scene, but I was able to more-or-less duplicate the lighting setups and the materials are pretty close. Re: Caustics / Dispersion of Light Post by B.Y.O.B. There are caches to accelerate the rendering of indirect light, caustics, environment light and scenes with many light sources. It seems that water object is blocking the view. I want to render caustics, and I want to see the caustics effect through the water, but its not working. The PhotonGI cache is a way of pre-calculating light by tracing photons in advance. but points to just how amazing the Cheetah renderers are/were because both were able to do both shadow and reflection caustics better than Cycles can now (albeit Cycles is much easier to set up, you just toggle on shadow caustics for a lamp and it "works" for low values of "works"). My scene have a water surface, and a simple plane beneath it. More than 30 bugs have been fixed in LuxCore and in the Blender addon.Blender 3.2 just added shadow caustics for Cycles and it's a definite improvement for Cycles.
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