Author Topic: Candle Flame Test  (Read 2518 times)

0 Members and 1 Guest are viewing this topic.

Offline bdesign

  • Hero Member
  • *****
  • Posts: 569
Candle Flame Test
« on: July 27, 2016, 09:54:30 pm »
A little test attempt at trying to achieve a fairly convincing candle flame material/subtle movement within KeyShot. Post production with Photoshop.

Eric




Version 2...20% reduction in the bloom off of the wax.

"Old Film Grain Overlay Texture" sourced from:
https://gumroad.com/d/e52957bdbb77f0c683fe60909e31cf44
« Last Edit: July 28, 2016, 12:20:15 pm by bdesign »

Offline Despot

  • KeyShot Beta
  • Hero Member
  • *****
  • Posts: 1640
  • Despots rule OK
Re: Candle Flame Test
« Reply #1 on: July 28, 2016, 06:39:00 am »
Very, very cool (well, hot really ;) ) indeed as well as convincing Eric - I don't think people realise how difficult this is to achieve, definitely KeyShot Facebook fodder in my book...

Offline bdesign

  • Hero Member
  • *****
  • Posts: 569
Re: Candle Flame Test
« Reply #2 on: July 28, 2016, 08:51:10 am »
Very, very cool (well, hot really ;) ) indeed as well as convincing Eric - I don't think people realise how difficult this is to achieve, definitely KeyShot Facebook fodder in my book...
Thanks very much, John! If it convinces you, then I feel pretty confident I achieved what I was going for :). When I began experimenting, I was trying out rendering both the flame motion and the "dancing" light motion on the floor/within the SSS, inside of keyShot, but quickly realized that rendering out individual frames of the Translucent wax material was gonna take forever. So I ended up rendering the flame motion animation separately against a black background, a static "beauty" image of the candle and floor (no flame), and a static floor-only candlelight pass (HDR off), then compositing and simulating the light motion on the floor and within the SSS by animating the opacity of a few adjustment layers in Photoshop. I also rendered out a separate, additional, static specular-only pass for the wax to slightly enhance the form of the candle. And finally, once fairly happy with the result, I looped the entire thing a few times.

Cheers,
Eric

Offline Will Gibbons

  • Global Moderator
  • Hero Member
  • *****
  • Posts: 2053
  • Training Specialist at Luxion
    • KeyShot Training
Re: Candle Flame Test
« Reply #3 on: August 01, 2016, 06:30:16 am »
 :o :o :o :o :o :o :o

Fantastic! This is totally cool. For me, this is a perfect Halloween animation. Thanks for sharing a breakdown. The last time I tried rendering a candle and flame, I abandoned ship before getting a decent result.

Offline bdesign

  • Hero Member
  • *****
  • Posts: 569
Re: Candle Flame Test
« Reply #4 on: August 01, 2016, 10:05:55 am »
Thanks very much, Will! I think the most difficult part was actually getting a decent combination of Color Gradient nodes for the flame material. Thanks again!

Cheers,
Eric