ies light problem rendering

[aaron.arteaga]

im using sketchup 8 with vray 1.49.01 so i was playing with the ies light, download a couple of em' render an image, and the first try worked, but i asign diferent ies parameters to another ies lights and stopped rendering the ies lights, rectangular and spotlights are able to render but i cant get the ies lights working any advice?

[tinapa]

im having the same problem with aaron.

[fpedrogo]

Hi aaron.arteaga
What you mean with "but i asign diferent ies parameters to another ies lights"? What parameters you changed.
Yo have to keep in mind one thing that is happening with the IES light in V-Ray for SU with the power. V-Ray take the power of the IES from the IES data and that power is in Lumens. Let said that we are using an IES light with 5000 lumens of power. If we let the power in V-Ray for SU to 0, we are using the internal power of the IES light. In this example 5000 lumens. If you change the power option to 3000, you are not increasing the power to a 8000 lumens, V-Ray understand that in fact you are reducing the IES light power to 3000 instead of the default 5000 lumens of the IES. This is not the way how it suppose to work, but it is the way how is working now. We have to change this in a future build. Anyway, if you want more power on the IES you will have to drastically increase the power of the IES or use another light with more power by it self.
I hope this explanation can help you. If you are having a different issue, please give me more details of the issue and the scene file to look at it.

Best

[tinapa]

hi fpedrog, could you help me also. my problem with my ies is, it doesn't work at all. when i render, it just turned all black. any advise about the settings? im using v 1.49.01. tnx in advance.

[fpedrogo]

hi fpedrog, could you help me also. my problem with my ies is, it doesn't work at all. when i render, it just turned all black. any advise about the settings? im using v 1.49.01. tnx in advance.

Can you send me the scene and the IES ligh that you are using?

best

[vishal7]

I aslo got the same problem with sketchup 8 and vray 1.49.01... i am building an architectural view which is not possible without IES lights... i have tried all the above methods namely setting value to 0.. also tried values like 5,500,5000,50000,500000.... i am clueless what can be the reason.... i have tried many IES lights.... downloaded several from web (like lithonia full catalogue) .... nothing rendered..... is this a bug??.... even tried on sketchup 7 ..... its really frustrating.... what is the meaning of paying for the software if we cant get the desired result??....

[vishal7]

vfsu 1.49.01 IES problem

I aslo got the same problem with sketchup 8 and vray 1.49.01... i am building an architectural view which is not possible without IES lights... i have tried all the above methods namely setting value to 0.. also tried values like 5,500,5000,50000,500000.... i am clueless what can be the reason.... i have tried many IES lights.... downloaded several from web (like lithonia full catalogue) .... nothing rendered..... is this a bug??.... even tried on sketchup 7 ..... its really frustrating.... what is the meaning of paying for the software if we cant get the desired result??....

i would also like to add that i uninstalled and reinstalled vfsu 5-6 times and it didnt solve the problem.... what is the company doing on this issue???

[fpedrogo]

Unfortunately I haven't received any scene yet. The IES lights are working good for me. SO the only way that I have to figure out what is the issue is if I can reproduce your issue. Without your scene will be very hard. Please send me the scene and the IES light that you are using.

Best
Fernando

fernando.rentas@usa.chaosgroup.com

[vishal7]

will do it shortly

[fatemeh]

hi friends, I am using the trial version of vray SU, I first tried to render my interior scene using default setting by Vray, but the output is just a white picture. what's wrong I do not understand!