Mathias Agopian d54ceff7a3 Add support for screen-space contact shadows (#2245) ...

* Add support for screen-space contact shadows

This CL adds support and always enables it.
toggles and setting in the next CL (same PR).

* Plumb settings for screen-space contact shadows

screen-space contact shadows is handled like a shadow option,
parameters (including on/off) are set in the LightManager, using
the existing ShadowOptions API.

Additionally there is a per-renderable toggle.

Both toggles are off by default.

* Allow contact shadows when shadowing is auto-disabled


Shadowing can be auto-disabled when for instance there are no
shadow casters in the scene. We still allow contact shadows in
that case.

This would allow for instance, to make the vegetation on a terrain
not shadow-casting, and still get some shadowing there by using
contact shadows instead.

* apply micro-shadowing after contact shadows

also, don't compute contact shadows when we know we're fully shadowed.

2020-03-16 22:39:24 -07:00

26 KiB

Raw Blame History

View Raw