Author Topic: linking light to intensity  (Read 3880 times)

2015-07-02, 12:47:36

mraw

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Honestly I do not know if this makes sense to you: I like to play with the shape of a corona light(rectangle for example) in order to find the nicest look(e.g. in reflections)
For this I wouldn't want the brightness to be changed. For me it would be a great feature to have the option to link size and intensity.
So if I change the size of my rectangle light, the intensity would be changed accordingly that the overall amount of emitted light stays the same.

2015-07-02, 13:25:59
Reply #1

SeregSereg

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Wire Parameters

2015-07-02, 13:52:55
Reply #2

romullus

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It is perfectly possible now. Just change intensity units from default to say lumens and you'll get what you want.
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2015-07-02, 13:57:47
Reply #3

mraw

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ah. Didn't know that. thanks Romullus.

2016-05-19, 12:25:08
Reply #4

mraw

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Has this changed in 1.3?
If I change the size of the light now, the intensity(lumen) doesn't change.
It still works, but the intensity value doesn't change anymore. Is this a bug or on purpose? thanks.

2016-05-19, 12:28:36
Reply #5

romullus

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No, it's not bug and it worked like that from the begining. Lumen output doesn't dependant from physical light size.
I'm not Corona Team member. Everything i say, is my personal opinion only.
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2016-05-19, 12:51:45
Reply #6

mraw

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I remembered that the intensity value changed(maybe Candela?) during dragging the size sliders. Obviously I'm wrong. Sorry.

2016-05-19, 13:25:31
Reply #7

Juraj

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I only use Lumens, easiest way to recreate physically correct lights.
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2016-05-19, 15:14:01
Reply #8

mraw

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can you recommend a resource about Lumen, Lux, Candela?

2016-05-19, 15:30:57
Reply #9

romullus

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Wikipedia? :]
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