Cool Feature Suggestion "Attenuation ramp"

Forums: Cool Feature Suggestion "Attenuation ramp"
Generic forum to discuss Octane Render, post ideas and suggest improvements.
Forum rules
Please add your OS and Hardware Configuration in your signature, it makes it easier for us to help you analyze problems. Example: Win 7 64 | Geforce GTX680 | i7 3770 | 16GB

Cool Feature Suggestion "Attenuation ramp"

Postby seriawp » Thu Oct 21, 2021 9:50 pm

seriawp Thu Oct 21, 2021 9:50 pm
Hello, im Houdini user.
Is it technically possible to implement the function as in light sources on the CPU? For example in the houdini. There is a parameter "Attenuation ramp multiplier", a very convenient and cool thing.

It is very useful when you want to change the intensity of the light source at the beginning but leave it original at the end. Without this function, I would not be able to render such a light, in this zone, there would be a very strong light.
https://i.imgur.com/SO4zEXC.jpeg
Mantra Render.
:idea: :idea: :idea: :idea:
seriawp
Licensed Customer
Licensed Customer
 
Posts: 77
Joined: Wed May 31, 2017 9:45 pm

Re: Cool Feature Suggestion "Attenuation ramp"

Postby elsksa » Thu Oct 21, 2021 11:57 pm

elsksa Thu Oct 21, 2021 11:57 pm
Hello seriawp,

It is currently possible in a plausible way (without breaking the quadratic light decay (inverse square law), either via the distribution input and some procedural Octane "nodes" or via IES lights, to name a couple of solutions.

Last but not least, Light Filters (from the roadmap slides: "Spectron OSL Filters: Light Decay | Blocker") are in the roadmap.
Here is a preview of it from one of the previous Jules's GTC presentation, on YouTube: https://cdn.discordapp.com/attachments/375674946954854414/763085789009018890/otoy_roadmap_2020_2021.jpg

Other than that, the Mantra reference is naturally achievable with a light at the right scale, intensity and position, as in reality (photography, cinematography).
elsksa
Licensed Customer
Licensed Customer
 
Posts: 784
Joined: Sat Jul 24, 2021 1:06 am

Re: Cool Feature Suggestion "Attenuation ramp"

Postby seriawp » Sat Jun 17, 2023 12:15 pm

seriawp Sat Jun 17, 2023 12:15 pm
elsksa wrote:Last but not least, Light Filters (from the roadmap slides: "Spectron OSL Filters: Light Decay | Blocker") are in the roadmap.
Here is a preview of it from one of the previous Jules's GTC presentation, on YouTube: https://cdn.discordapp.com/attachments/375674946954854414/763085789009018890/otoy_roadmap_2020_2021.jpg


After a few years, convenient controls have not been added :| :| :| :|
seriawp
Licensed Customer
Licensed Customer
 
Posts: 77
Joined: Wed May 31, 2017 9:45 pm

Return to General Discussion


Who is online

Users browsing this forum: nnnxxx and 6 guests

Thu Mar 28, 2024 11:21 am [ UTC ]