texture driven emissive intensity Tweet

[jwfvr]

hi -

I am trying to create a scene with lots of candles and I need flickering lights- not getting to close with the camera so I don't need the flame, but I am thinking its possible to drive the emissive strength with a texture to get an easy randomization - I can do this in Unreal, I assume I can do it here but I not getting it - is this possible? just an offset sine wave might work... thank you

[face_off]

Hi

Which nodes are you using to do it in Unreal please? The Emission Power is a Float, so I don't see an obvious way to plug a texture into it.

Paul

[jwfvr]

I should have clarified -Unreal has an emissive COLOR input - but you can plug in any number of combinations to drive the "pulse" or the strength of the emissive. if I just use a sine node, the light will pulse. I get the incompatibility, I was just wondering if there is a way to mimic this in octane - its very useful and makes for an easy "flicker" but if there is an alternative that gives the same effect I am all ears. thanks

[face_off]

Hi

If you create and Octane Override for the material, you should be able to use the exact same nodes that you have in the Unreal plugin. Something like the following. You can animate the "Octane Transform Value" Y Rotation, etc rather than using the Time (although I think there is probably a Modo channel modifier for time that you could use too).

Paul

[jwfvr]

this is great! I will give it a shot -thank you Paul!