spots light with multimap

Corona Corona for 3ds Max Issues
1

Hello there,
Not really a bug, more an annoying limitation :

I have several spots lights to place (standarts, to use nice volume Fx and directionality), in random flashy colors.
But putting a CoronaMultimap in the Map Prjector slot of the spot does not do the tric, whatever the mode i choose (logically “instance” mode)..

Any idea ?

2

I can get this to work fine… see attached?

Is this what you wanted?

Done in Corona 4 hotfix 1.

Untitled-1.jpg
Untitled-1.jpg1542×825 245 KB

3

Not in CoronaLights, in Spotlights, but yes, this is what i need.

4

Solved by the user - it was user error.

5

Not really : i would like to get CoronaMultimap into standard 3dsmax’s Spotlight.
And it does not work : all the spots (instances) get the same coloe.

6

Ok, sorry, we will look into this ASAP.

7

Confirmed with Max standard and photometric lights and logged.
It seems the only workaround for now is using Corona Lights instead of Max Lights.

(internal id=385302399)

8

Hi,

Maybe a stupid question. But can you explain why you need to use the Max lights instead of the Corona lights?

Thanks,

Rowan

9

It is a clever question :
When you need some directionality for lights (the spot effect), it is way better (faster to solve) to use the standard Spotlight with beam size / falloff.
Also, when you need a projector light : Sportlight is far faster, and fully supported by Corona.
Last, with spotlights you can use the VolumeEffect that is faster (though less nice) than VolumeMtl.

Those tricks are from Corona team (Corona Academy).

For a project, i needed spotlights (with beam) with same parameters, but with several colors, so the CoronaMultiMap is the solution. But not supported in sportlights yet.

10

Hi,

Thanks for the information :smiley:

Cheers,

Rowan

11

@Naxos. I’ve done the same, and found out, that the beams (Standard VolumeEffect) will render even when the light are off.

So set up your beams with standard spotlight, and set up the actual light with Corona lights.

Would that workaround work in your case?

12

Not really, because the directionality function for Corona Lights are banned for now : too much noise they give, and i guess it will be fixed / made better in the future.

To prevent a spot to be shown in the VolumeEffect, you have to remove it from the list in the Environment effects ( “8” touch)

13

Yes I know. But I use this setup on purpose :smiley:

14

Hi,

I have done some investigation into this and spoken with our dev team.

Unfortunately it looks like it is a Max limitation reagrding using the CoronaMultiMap with 3ds Max lights.

However we will definately look at optimising the CoronaLight so you are able to use it instead of the Max lights.

Thanks,

Rowan

(Internal ID=390148597)

15

I’d love to use Directionality of CoronaLights, but as we were teached in the Academy, it is not yet usable in production : better is to use spots.
I’ll wait.

16

Two things there - directionality is fine, it’s high directionality that might introduce noise (values such as 0.7 and above). Also, this has improved with the new adaptive light solver (on by default since Corona Renderer 4) so that it is less of a concern.

17

Ok i’ll give a try…

Also, using Max’s default spotlight is good for the fake Volume effect : fast and easy to setup.