V-Ray Light - Lumens - Light size?

thomthom

Yes - thanks for clearing that up.

tomot

self explanatory!

tomot

SU v 7.1.6860
VRayForSketchUp-1.48.67-windows-installer

Once again this is thomthom's file rotated to view the back side of the 2 boxes.

Rendering setting for attached pic:

Global Switches: all Headings under Lighting: OFF
Indirect Illumination: OFF
Camera: Standard:
Settings Environment: Both OFF

(SU shadow on or off makes no diff to rendered image)

Unless I'm missing other settings in Vray:
Why is the SU shadow still illuminating the rendered Vray Scene?

thomthom

@tomot said:

@thomthom said:

:thumb: Yes - thanks for clearing that up.

I like small simple scenes thomthom After a simple copy & paste. I added 1 IES light to each box as shown in the pic. I also removed the light planes from the 3 IES light boxes prior to rendering. The attached pic clearly shows a number of unintended results.

I've not had too much experience with IES - but from what I understand the result from them can vary greatly from IES to IES. But you mention you set the IES lights to 5000lm and 10000lm - but there is no lumens light unit for IES lights. You have only the Power property to adjust the intensity of what the IES is set up to be.

thomthom

@tomot said:

self explanatory!

? I'm not really sure what you mean by this. The burned out right cube? If that's the case - and you did not adjust the intensity when you turned off Physical Camera then that is normal. With physical camera you need a lot more light. So when you turn it off you must adjust accordingly.

thomthom

@tomot said:

SU v 7.1.6860
VRayForSketchUp-1.48.67-windows-installer

Once again this is thomthom's file rotated to view the back side of the 2 boxes.

Rendering setting for attached pic:

Global Switches: all Headings under Lighting: OFF
Indirect Illumination: OFF
Camera: Standard:
Settings Environment: Both OFF

(SU shadow on or off makes no diff to rendered image)

Unless I'm missing other settings in Vray:
Why is the SU shadow still illuminating the rendered Vray Scene?

Default Lights? Is that on?

tomot

@thomthom said:

@tomot said:

SU v 7.1.6860
VRayForSketchUp-1.48.67-windows-installer

Once again this is thomthom's file rotated to view the back side of the 2 boxes.

Rendering setting for attached pic:

Global Switches: all Headings under Lighting: OFF

yes! that's what I said, and here is the pic.

tomot

@thomthom said:

@tomot said:

@thomthom said:

:thumb: Yes - thanks for clearing that up.

I like small simple scenes thomthom After a simple copy & paste. I added 1 IES light to each box as shown in the pic. I also removed the light planes from the 3 IES light boxes prior to rendering. The attached pic clearly shows a number of unintended results.

I've not had too much experience with IES - but from what I understand the result from them can vary greatly from IES to IES. But you mention you set the IES lights to 5000lm and 10000lm - but there is no lumens light unit for IES lights. You have only the Power property to adjust the intensity of what the IES is set up to be.

I made a mistake! the picture was showing Spotlights, not IES lights. I have now edited the picture information

tomot

@thomthom said:

:thumb: Yes - thanks for clearing that up.

I like small simple scenes thomthom After a simple copy & paste. I added 1spotlight to each box as shown in the pic. I also removed the light planes from the light boxes prior to rendering. The attached pic clearly shows a number of unintended results.

thomthom is had to edit my previous post, and picture information. I hope this might attract a better response.

nomeradona

i tested this one again and again tomot including the old version. so it seems to me its a bug, whilst i reported that to the beta testing section of asgvis.

john2

this bug is still there? i'm using 1.49.01 there is still a slight difference.