Author Topic: How to make glow material  (Read 8587 times)

0 Members and 1 Guest are viewing this topic.

Offline hellrage

  • Newbie
  • *
  • Posts: 3
How to make glow material
« on: March 05, 2015, 01:06:03 am »
Hi guys,
I'm having problem creating glowing material for my objects in Keyshot 5.



I'm using emissive material and the glow turned out unlike what i have expected. I'm trying to get the glow to be something like this:



I've increased the bloom instensity and radius but no avail :(
Please help me.

Thank you.

Offline Will Gibbons

  • Hero Member
  • *****
  • Posts: 2846
  • willgibbons.com
    • My Website
Re: How to make glow material
« Reply #1 on: October 20, 2015, 10:44:29 am »
I've got a dirty trick I use to achieve this effect. Note, this is simplified. You may need to make exceptions to some of these steps and further adjustments, but this should give you an idea.

1. Open your rendered image in Photoshop
2. Duplicate your image on a new layer
3. Increase exposure by about 20-30% depending on how bright you wish your glow to be (also can change hue/sat if you wish) In some cases, you'll want to adjust white and black point to only make highlight areas blur.
4. Gaussian blur the layer you just increased exposure on. More blur for larger amount of glow.
5. Set your blurred layer to 'screen' to make dark/black areas less visible.
6. Drop opacity of blurred layer to 10-30% (or desired amount)

This will allow you to achieve more flexible glow effect without using the 'bloom' tool in KeyShot

Note: if you want glow on only one object and not the background, either use a clown pass to select your object on your blurred layer, invert your selection and delete.