Hey,
i try to build a LED-Channel. I know that the opal cover transmit about 55-60% of the light and the LED-Stripe has 300 lumen/meter.
But in the render looks more like a sun.
Did i something wrong?
LED and Lumen Setting
Forum rules
Please upload a testscene that allows developers to reproduce the problem, and attach some images.
Please upload a testscene that allows developers to reproduce the problem, and attach some images.
Re: LED and Lumen Setting
Did you use reasonable tonemapper settings?
Re: LED and Lumen Setting
I use always the default settings.Did you use reasonable tonemapper settings?
Re: LED and Lumen Setting
Is there any difference between Gain and Exposure in World->HDRI settings?
Re: LED and Lumen Setting
If you use real-world light units, you will also need to use real-world tonemapping units.
For a start, you could take a photo of a light source with similar brightness. Then check the ISO, F-Stop and shutter time chosen by the camera, switch the tonemapper to "camera settings", and enter similar values.
About gain and exposure:
final_gain = gain * (2^exposure)
So gain is a linear factor, while exposure is an exponential factor.
For a start, you could take a photo of a light source with similar brightness. Then check the ISO, F-Stop and shutter time chosen by the camera, switch the tonemapper to "camera settings", and enter similar values.
About gain and exposure:
final_gain = gain * (2^exposure)
So gain is a linear factor, while exposure is an exponential factor.
Re: LED and Lumen Setting
Thank you, so is this workflow right?
1. default settings
2. matching LED with tonemapping
3. matching HDRI with exposure setting to match the default setting brightness
4. result in a room looks right?
1. default settings
2. matching LED with tonemapping
3. matching HDRI with exposure setting to match the default setting brightness
4. result in a room looks right?
Re: LED and Lumen Setting
We had a thread before on this kind of topic:
viewtopic.php?f=4&t=1938&p=24448#p20979
perhaps you find some helpful info there?
viewtopic.php?f=4&t=1938&p=24448#p20979
perhaps you find some helpful info there?