Standard Light Projection Map

[AbeTJH]

The projection map settings under the standard 3ds max lights does not seem to work properly with Vray GPU. Separately, switching the light cone from "Circle" to "Rectangle" does nothing as well. See attached examples for the properly rendered VRay CPU vs GPU using the same settings.



These options are helpful to have to fake certain effects (i.e. pool caustics).

Using a vray light with a directional setting of 1.0 is the not the same because it lacks any falloff setting.

[vlado]

I will make a note to see how easy it will be to implement this.

Best regards,
Vlado

[Myth65]

Is there any news on this? Super helpful tool that I miss in GPU.

[HowardDay]

I just ran into this issue myself - I'm hoping it could be added soon!

[squintnic]

Only way here is to use Vray CPU
Vray GPU is highly experimental (they just pretend its ready to use lol)

[piotrus3333]

use VRaySoftbox with VRayLight to get projector light with falloff:

[Muhammed_Hamed]

I'm looking into this now, will update the post with more information soon

Best,
Muhammed

[AbeTJH]

use VRaySoftbox with VRayLight to get projector light with falloff:

Headslap moment. That seems to work for my original scenario.

Would still love a decal system that could project these effects on multiple different surfaces easily.

[AbeTJH]

Quick setup for reference.

[HowardDay]

Thats awesome - But in order for this to be useful for my case I'd need to be able to precisely be able to control the light brightness *distance* falloff like I can with a standard light. :/ Still amazing to learn this!

[HowardDay]

Any updates on this, Muhammed?

[Muhammed_Hamed]

Hi Howard,

It is logged in our system, the GPU devs will look into this soon. I will know how long this takes to implement around Tuesday and update the thread(there are many things at hand now)

Best,
Muhammed

[HowardDay]

Wonderful, thank you!

[Muhammed_Hamed]

HowardDay Hello!

We are looking into this now, it seems that we implemented something similar in Maya recently. Will see if it could be used for 3Ds Max as well
VGPU-5602 is the request number, I will keep you posted on progress.

Best,
Muhammed

[HowardDay]

That's great. I hope it's a simple thing to accomplish!