Author Topic: Best Practices? Lowering Albedo or darkening bitmap?  (Read 3704 times)

2016-03-24, 17:12:52

mferster

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Let's say a texture in your scene is coming off as too bright. I'm just curious what is the better practice, lowering the albedo value, darkening the bitmap directly, or using adjustments either through color correction/outputs?

Are there any differences between these methods; such as in rendering performance or how they interact with light sources. Or are they ostensibly the same thing?

I'm curious how other people tackle this scenario.

Cheers,


2016-03-24, 17:43:16
Reply #1

maru

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Lowering diffuse level is exactly the same thing as darkening your bitmap in PS or altering output settings in 3ds. (there should be no performance/visual difference)
Using 3dsmax color correction node always makes rendering slower.
Marcin Miodek | chaos-corona.com
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2016-03-25, 14:22:50
Reply #2

Nekrobul

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Lowering diffuse level is exactly the same thing as darkening your bitmap in PS or altering output settings in 3ds. (there should be no performance/visual difference)
Using 3dsmax color correction node always makes rendering slower.

Maru are there some tests\numbers to compare? I am actualy using a lot of Color correction stacs in my scenes and if this is true and afects rendertime dramaticly i might review my pipeline.
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2016-03-27, 00:41:54
Reply #3

Ondra

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pre-max2014 it was a LOT. Then they fixed it.
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2016-03-29, 10:30:26
Reply #4

iLEZ

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Using 3dsmax color correction node always makes rendering slower.

Just to be clear, the output node is still fine to use, right? So you could "clamp" the bitmaps with that without messing with the render time significantly?

2016-03-30, 16:54:00
Reply #5

maru

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According to this simple test it looks like there is almost no difference between the bitmap alone and in the output node (there is 1s difference, but it is neglible), and cc makes it a bit slower (few seconds here, could be significant in a more complex scene/longer rendering).
Marcin Miodek | chaos-corona.com
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2016-03-30, 19:30:32
Reply #6

PROH

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Got the same result in my tests. "Output" is the same or very little slower as none, but "Color Correct" is 10 - 20% slower than none.