Realtime Dynamic GI + Reflections + AO + Emissive - AHR

[RyanTorant]

@krstefan42;317521

Yep, that’s exactly what I mean.

The obvious approach would be to choose the LOD where the texel size most closely matches the current “cone size” (if we pretend for a second that the rays are closely packed cones). But that wouldn’t work well, because features will need to be thickened in the coarser LOD’s (otherwise thin walls will disappear), and therefore small gaps like windows would close up. could be solved by subtracting a constant from the LOD level and clamping to 0. way the “closing up” would still happen, but it would only happen at distances far enough away from the starting point that it won’t matter

Sounds like a plan! Will tell you when I’ve finished converting to 3d textures and we can try that.

@diegor;317531

another trick to avoid tracing over large distances is recycling nearby raytraces that go in a similar diection as the current one an storing them in a buffer , so each voxel or pixel needs a dedicated trace of a very short distance a la tomorrow children , but i think you have already implemented it and because of that you think that using distance fields is not worth being implemented?

Recycling prev rays for pixels that hadn’t moved a lot is something i am going to do, been thinking on that for a while.
About distance fields, epic is already doing a lot of job on that area, so think is better to leave them work with DFGI and similar, like I said before, distance field have their own plus and cons, so it’s cool to have different options to choose.