Author Topic: Cloud Phase parameter  (Read 1432 times)

2022-10-13, 21:46:38

Cinemike

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In my tests I found that the Phase parameter for the new clouds doesn't do anything for the cirrus clouds but for the stratus and cumulus type ones. I think it should be relocated in the GUI.

The seed parameter also does not alter the cirrus population / distribution. It'd be nice if it did.


2022-10-17, 12:06:23
Reply #1

Core2000

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Seed also do nothing to cirrus clouds

2022-10-17, 14:08:28
Reply #2

TomG

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Correct on both counts - Cirrus are generated by a different means  (think of them as more like a static map), so seed and phase do not affect them.
Tom Grimes | chaos-corona.com
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2022-10-17, 14:32:54
Reply #3

Beanzvision

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^Yep. To get some variety from the Cirrus clouds you'll have to adjust the clouds offset. :)
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2022-10-17, 16:23:42
Reply #4

Cinemike

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So my point still stands: Phase has no justification to be placed right to the Cirrus amount because it does not do anything related to this type of clouds.
It is just misleading.

2022-10-17, 17:32:12
Reply #5

Beanzvision

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Phase determines minor perturbation of the clouds to simulate their change over time. This can be useful for animations or timelapse style renders. ;)
https://support.chaos.com/hc/en-us/articles/8782365946513-How-to-use-Corona-Sky-Clouds-C4D
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2022-10-17, 20:03:05
Reply #6

Stefan-L

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2022-10-17, 20:08:21
Reply #7

TomG

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Should just be the sun very low in the sky, perhaps even below 0 degrees.
Tom Grimes | chaos-corona.com
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2022-10-17, 22:30:00
Reply #8

Cinemike

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"Amount: The amount of the main clouds such as Stratus, Cumulus, Cumulonimbus.

A value of 0% means there will be no clouds in the sky, whilst a value of 100% means the sky will be fully covered."


2022-10-18, 08:32:34
Reply #9

Beanzvision

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https://support.chaos.com/hc/article_attachments/8827418898961/sunset_clouds.jpg

any hint how this redish cirrus clouds are made? :)
As Tom mentioned, drop the sun below the horizon to illuminate high altitude clouds. Here I set it to -2. :)

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