GZDoom ShadowMap for DynamicLight

[DnB-Freak]

I don't know if this has been asked before, but...
I don't get Vavoom to work and wonder if this can be applied using GZDoom shaders.

[Graf Zahl]

No idea what precisely you want. If you mean walls casting shadows, the answer is no.

[Accensus]

More like dynamic light blocking so that it doesn't pass through walls and seem unrealistic.

[DnB-Freak]

More like dynamic light blocking so that it doesn't pass through walls and seem unrealistic.

Yes something like that.

I got 'No' but I don't find what exactly is the problem.

[Graf Zahl]

The problem is that this kind of stuff requires data structures that simply are not there. Remember, Vavoom requires a GLVIS lump to handle this - but building such a thing for larger maps takes forever. Aside from that it also put some heavy drag on the engine.

[Monsterovich]

but building such a thing for larger maps takes forever.

over 10 seconds..

[Caligari87]

Graf, what about the option to manually exclude/include/link dynamic lights and sectors with a bitmask or something? You floated that idea yourself a while back and haven't quite "No'd" it yet

Wouldn't work for "real" dynamic shadows but would definitely be useful for other effects such as "light blocking", especially if the bitmask is able to be edited at runtime.