Unreal Engine 4.23 Preview

[Leo_Rakes]

@Tim_Hobson

SSGI is in the 4.23 release, however, it can only be enabled via console variable at this time. It’s not a final, production-ready feature and we are not calling it out in the release notes or marketing it in any way for this release. There is still some work to do with it and it should be ready for 4.24 with more information and accompanying documentation. Until then, it’s there in the builds if you want to try it out but it’s hidden.

As for SSGI, I tested SSGI in Dev_Rendern before and found that SSGI can be combined with RTAO normally, but in the latest 4.23 Preview 1, opening SSGI will cause RTAO to fail completely.

Moreover, if you want to use RTGI, you must adjust the strength of RTAO to 0.

Another problem is that RT translucency seems to have failed and cannot be turned on properly.

In fact, prior to this, the 4.22 version of RayTrace had Bugs that could not be displayed at the same time as LPV. When I turned on RT Shadow, the effect of LPV completely disappeared, which meant that I could not find any GI in real time. In order to have real-time GI effect, I had to turn off RT Shadow, or no LPV effect.

There are too many problems with RayTrace effect in 4.22. For example, there are many material modes that do not support it. TwoSideFoliage mode is supported in the introduction of documents. But when I turn on RT GI, the material of TwoSideFoliage mode becomes very strange.

I don’t know how many improvements can be seen in 4.23 RayTrace. At least for now, it seems that only Foliage and Landscepe, ISM support can be seen. (Also, ISM and HISM, Foliage don’t seem to perform well?)