Chaos Corona Forum

Chaos Corona for 3ds Max => [Max] I need help! => Topic started by: Jpjapers on 2024-12-18, 14:34:40

Title: Phoenix & Lightmix
Post by: Jpjapers on 2024-12-18, 14:34:40

Are we able to add phoenixFD fire to lightmix layers?

Currently lightmix places it on the 'rest' layer. I cant add the actual grid to a lightmix layer but i can add the particle source object. However this results in an empty lightmix layer and the actual light ends up on the 'rest' layer again.

What scene object do i need to add to gain control over the fire objects in my scene using lightmix?

Title: Re: Phoenix & Lightmix
Post by: maru on 2025-01-16, 17:52:17

Currently, it's not possible to add self-illuminated materials or Light Mtl with "emit light" off to LightMix layers.

We have it logged as a feature request at (Report ID=CMAX-302).

Title: Re: Phoenix & Lightmix
Post by: Jpjapers on 2025-01-17, 11:38:11

Quote from: maru on 2025-01-16, 17:52:17

Currently, it's not possible to add self-illuminated materials or Light Mtl with "emit light" off to LightMix layers.

We have it logged as a feature request at (Report ID=CMAX-302).

Thanks Maru, Im assuming that means that Corona sees Phoenix objects that emit light as a self illuminated material rather than an actual light source then?

Title: Re: Phoenix & Lightmix
Post by: maru on 2025-01-17, 15:30:49

Yes, Corona Lights and Light Mtl are a special thing which is sampled super efficiently. Phoenix emits light just like self-illumination in Corona Physical Mtl or Volume Mtl. It's pretty much like a GI bounce so it renders more noisy and is affected by render settings (for example max sample intensity).