Raytracing was merged into Dev-Rendering!

[Jambax]

@TommyBear

DXR functionality is currently limited to DX12 cards that have RT capability. There is no DXR support for legacy GPUs at this time. While there are fallback implementations, they are not DXR main.

Not according to this article at least (whether it’s implemented yet is another matter)

“At the base level, DXR will have a full fallback layer for working on existing DirectX 12 hardware.”

@anonymous_user_fbe2d247

Lighting is static if its precomputed. Where its stored is just technical detail. Lightmaps, probes, voxels etc.
UE4 currently can use volumetric lightmaps(voxels) for movable objects. This system would just use same voxel based system for everything. So less shader permutations.
You can actually already have this kind of system for UE4 by forcing all objects to use volumetric lightmaps. But baking still require lightmap coordinates to be setuped.

True… though the Indirect Lighting Cache still lights movable objects too IIRC, I’m fairly sure that’s not unique to the newer volumetric lightmaps.

What I really meant is, if static objects have to lookup GI at runtime too - I would guess that would add significant cost.

EDIT: Somehow this ended up in the wrong thread… err…