How to make object emit light?

[Anonymous]

I am looking into making lights from objects, which is the best option for the objects to emit glow and light? 🙂

[pshwayka]

If you're using Mental Ray, you can assign the "Object Light" material to your model.

[Anonymous]

 Oh thank you lots for replying! may I ask in which options do I find the object light? I am using mental ray yup

[pshwayka]

Just right-click and assign it as a new material...it's under the Mental Ray section. (See attached.)

[Anonymous]

Thank you lots! Is there also a way I can add a glow to this? Like a glowing rim around the lit object?

[pshwayka · Accepted solution]

If you want to do something like that you may want to just use a surface shader and adjust its shader glow. Here's a quick tutorial on how to do something like that: https://www.youtube.com/watch?v=CijESEporUo

[Anonymous]

Thank you for the video! It's a pretty neat method! I am though having a little doubt as to how can I reduce the spread and noise of the rim?

[pshwayka · Accepted solution]

The rim is controlled by the halo settings. If you open the Hypershade and click on the ShaderGlow node, you can adjust them in the attribute editor. Decrease the Halo Spread to make the "rim" smaller. (See attached.)

[Anonymous]

Exactly what I was looking for thank you so much! Also for being extremely clear with the attached photos 🙂 super helpful!

[pshwayka]

You're quite welcome. Glad you got it working!

[unpostar1234]

thank you about your answer but i have one question how can make this object get effected by shadow and still the other area without shadow emits light ? like moon