Hello everyone!
I decided to write a couple words about my problem with HDR map lightning. So what`s the core? In the real world the photographer has no problem with the light environment settings, because it just exist! He has a photometer (light meter), and it just give him a correct EV value (f-number, & shutter speed) with respect to existing light power. My problem and question is, which value of light intensity must be to achieve correct value for HDR light (no mater if it is measure in lumens, default units or watts)? In my opinion most tutorials shows not correct way to achieve good results, because they setup first camera settings, and then change light of hdr value. Correct way is to change camera setup with respect to existing light power. Right? When we have of course natural light.
(we can see, that the wall next to shover has green color from grass - is that correct?)
Work-flow for this render is:
I made a simple environment lightning with OpenfootageNET_Plainfeld_medium.hdr in background and HEMI light as a texture. In the same time I opened the HDR image in HDRshop. I setup camera settings F-number: 5.6, Shutter speed: 60 - this is EV = 11. Maby for this map EV must by higher? I don`t know. So I change the intensity of HDR light from 1 to 60 (default values). The result from render looked like the same in image in HDRshop. Then I made interior scene and applied the same value to HDR map intensity (60) and now I just change the camera settings. This is complicated, but I want to keep the real settings.
From where can I get the correct value of HDR light intensity?
I decided to write a couple words about my problem with HDR map lightning. So what`s the core? In the real world the photographer has no problem with the light environment settings, because it just exist! He has a photometer (light meter), and it just give him a correct EV value (f-number, & shutter speed) with respect to existing light power. My problem and question is, which value of light intensity must be to achieve correct value for HDR light (no mater if it is measure in lumens, default units or watts)? In my opinion most tutorials shows not correct way to achieve good results, because they setup first camera settings, and then change light of hdr value. Correct way is to change camera setup with respect to existing light power. Right? When we have of course natural light.
(we can see, that the wall next to shover has green color from grass - is that correct?)
Work-flow for this render is:
I made a simple environment lightning with OpenfootageNET_Plainfeld_medium.hdr in background and HEMI light as a texture. In the same time I opened the HDR image in HDRshop. I setup camera settings F-number: 5.6, Shutter speed: 60 - this is EV = 11. Maby for this map EV must by higher? I don`t know. So I change the intensity of HDR light from 1 to 60 (default values). The result from render looked like the same in image in HDRshop. Then I made interior scene and applied the same value to HDR map intensity (60) and now I just change the camera settings. This is complicated, but I want to keep the real settings.
From where can I get the correct value of HDR light intensity?
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