Incorrect distribution of generated whitewater particles when using world scaling

[dafassi]

Hy Ryan,
i did some more tests with big scaled domains and high worldsize-values.
It seems, that there is a mathematical issue.

1st: Spray appears in the air- in example around a falling drop.
2nd: Whitewater area is far too big
3rd: Foam particles appearing in a very large area around an obstacle in example.

Here is a small testblend: https://www.dropbox.com/s/1kbhytigda33u9h/SprayInLargeDomainError.blend?dl=1

Here is a screenshot from a worldsize=500 scene:
https://i.imgur.com/cYMHyYC.jpg

Here is s screenshot of the falling drop:
https://i.imgur.com/2l06qZW.png

Greets,
Dennis

[rlguy]

Hey Dennis,

I just had a chance to look into this. It turns out there was a math error. This bug has been in the simulator for quite a while now (November 2015). Good find! The fix will be included in the next version (1.0.5). I have added this patch to the Dropbox.

- Ryan