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Making Snow in WorldBuilder - Compound Sky clouds



Now it’s time to give our scene a little more cloud coverage.

In the Scene Tree expand CompoundSky, then click on AltoStratusClouds.

Select Noise in the Property Tree.

Change the Coverage value from 0.5 to 1.

Check the results by re-rendering in the Camera View.



Notice the rather severe appearance of our clouds.

This is due to the high contrast between the thin and thick areas in the clouds. WorldBuilder’s rendering engine ‘sees’ and draws thick areas as dark (almost black), and thin areas as lighter shades of gray. Also, there is a great deal of sharp detail in the clouds. Because we will soon add falling snow to our scene, we want to de-emphasize the high-contrast cloud detail, in order to make sure the snow is clearly visible against the sky background.

Let’s adjust the Fragmentation value from 3 to 2. This will soften the cloud detail.

Now, increase Brightness from 1 to 4.

Next, set Feathering from 0.2 to 2.

Turning down Shadow Density from 0.85 to 0.45 will also lessen the contrast.


Let’s render again in Production mode to see how these settings affect our scene.


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