This is potentially a strange request but it seems useful to my mind …
Krakatoa appears to render in stages, presumably outputting slices of the volumetric after a set amount or percentage - My question is, is it possible to save an image per render stage/slice ?
This has been requested previously and we have been pushing it back waiting for the day Krakatoa will support Render Passes / Elements (which is expected to be in version 2.0). In general, the voxels draw one scan plane at a time (earlier betas were showing every step of the process, now we are showing only 10 updates), but the plane is aligned halfway between the light and the camera, so it is not parallel to the image plane and in some cases it might not be usable.
In the case of point rendering, we draw one particle at a time back to front and update the VFB 10 times, too. In the case of particle rendering, the buffer is aligned to the camera image plane, so it would make more sense.
You might be able to fake something using near and far clipping planes or culling volumes.
Not really, hence my request for an RGB shading channel (and the ability to write to it). The clipping will otherwise dramatically change the shading of the particles.