Help with emissive materials? Why are they so difficult to get right?????

[rfollett]

I have never ever been able to get this working well.

All I want to do is create a color wash of light up a white board or screen. So I create a flat surface in Rhino with UV direction UP.

Then in Keyshot I apply an emissive material and up slider to 50 say. All I get a blue stripe but none of the light appears on the white board?

What Im I doing wrong?? Please can someone help ASAP

[PhilippeV8]

TURN ON "Indirect Illumination" on the Project/Settings tab !

[rfollett]

Global illumination? Yes?

[guest84672]

Correct.