photometric lights killing my rendering

schmoron13 · August 15th, 2003

Am I missing something about photometric lights? I'm doing my first remodeling job (redoing my mom's kitchen) and decided to try using photometric lights to simulate what it'll look like. I have about 16 photometric lights, and it's KILLING my rendering. It's taking about 11 minutes in 3ds max with only a base/generic material and that's using vray free with very low rradiance map set to very low (hsph subdivs 30, interp samples 10)

here's what the model looks like ("quick" rendering)...

what am I doing wrong with photometrics? :???:

proces2 · August 16th, 2003

with your subdivs and interp samples comment - i am assuming that you are using VRAY.

in the vray forum, i asked a similar question. apparently, when using some IES files, it can considerably slow things down with vray, but with others it can work just fine. there doesn't seem to be any determination as to which are problematic and which aren't.

i had problems when using an IES file on a linear light.

schmoron13 · August 17th, 2003

thanks Proces2...glad to see I'm not totally incompetent in using lights

I put in normal lights and just faked the results...here's the current set of pics:

link

-doron

starr · November 14th, 2003

I believe that for photometric lights you have to have a closed space, like a box with inverted normals. Also, you should mix them with nonphotometric lights...

Starr

August 15th, 2003	#1 (permalink)
schmoron13 Senior Member Join Date: Jan 2003 Location: Syracuse, NY, Walnut Creek, CA Age: 29 Posts: 331 Name: Doron Serban	Am I missing something about photometric lights? I'm doing my first remodeling job (redoing my mom's kitchen) and decided to try using photometric lights to simulate what it'll look like. I have about 16 photometric lights, and it's KILLING my rendering. It's taking about 11 minutes in 3ds max with only a base/generic material and that's using vray free with very low rradiance map set to very low (hsph subdivs 30, interp samples 10) here's what the model looks like ("quick" rendering)... what am I doing wrong with photometrics? :???: __________________ Doron Serban

August 17th, 2003	#3 (permalink)
schmoron13 Senior Member Join Date: Jan 2003 Location: Syracuse, NY, Walnut Creek, CA Age: 29 Posts: 331 Name: Doron Serban	thanks Proces2...glad to see I'm not totally incompetent in using lights I put in normal lights and just faked the results...here's the current set of pics: link -doron __________________ Doron Serban

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August 16th, 2003	#2 (permalink)
proces2 Senior Member Join Date: Oct 2002 Location: San Francisco Posts: 116 Name: Sean Ahlquist	with your subdivs and interp samples comment - i am assuming that you are using VRAY. in the vray forum, i asked a similar question. apparently, when using some IES files, it can considerably slow things down with vray, but with others it can work just fine. there doesn't seem to be any determination as to which are problematic and which aren't. i had problems when using an IES file on a linear light.

November 14th, 2003	#4 (permalink)
starr Junior Member Join Date: Nov 2003 Location: tulsa Posts: 2 Name: Starr Horne	I believe that for photometric lights you have to have a closed space, like a box with inverted normals. Also, you should mix them with nonphotometric lights... Starr

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