[jrm1]

Does anyone have any tips regarding accurate depiction of the cone of light coming from a lamp? I've modelled a Hunza outdoor lamp that has a fairly narrow beam and my efforts so far have resulted in the beam being too wide.

I tried placing the emitter surface as deep as possible up the light, to try and narrow the beam, but it's not that great. Perhaps a smaller emitter disc ( ie lamp surface) might help?

[numerobis]

IES?

http://www.hunza.co.nz/downloads.html

[jrm1]

Thank you.
Do I just plop the IES file into the emitter properties section of the MXM and the rest is taken care of? Am I right in making the emitter a flat disc the same size as the front element of the lamp or should it be smaller?

[jrm1]

I'll look at the documentation. Looks like I need a sphere.

[jrm1]

It says 'small' but not how small. I guess I should just experiment.

[Bubbaloo]

Very small.

[numerobis]

some more info

http://www.maxwellrender.com/forum/view ... s&start=15

[choo-chee]

IES needs small sphere, like 0.5 cm in diameter os so.

[jrm1]

Thanks everybody - all very helpful!