Tutorial: How to use the UVW Randomizer in Corona Renderer for 3ds Max

Tutorial: How to use the UVW Randomizer in Corona Renderer for 3ds Max



A detailed look at using the UVW Randomizer in Corona Renderer for 3ds Max. 00:02 – Introduction
00:16 – What UVW space means in 3ds Max, the bitmap settings
00:36 – What UVW space means in 3ds Max, the geometry UVW mapping
01:13 – Illustrating how UVW works in 3ds Max with a test case
02:27 – Note, offsets in whole numbers looks like no change at all
02:37 – Summary of best practices for UV mapping
02:49 – The test scene for the UVW Randomizer
03:23 – Getting to know the UVW Randomizer
04:01 – The effects of changing the Offset
04:10 – The effects of changing the Step for the Offset
04:34 – The effects of changing the Rotation (degrees)
04:46 – The effects of changing the Scale values
05:03 – The effects of the Same as U checkbox
05:16 – How to flip the bitmap
05:43 – First real world example, fingerprints on a bowl – single seamless bitmap, no direction to bitmap
06:32 – Reminder that offsets in whole numbers look like no change at all (so large numbers here are not "more random")
07:24 – Second real world example, wood on kitchen doors – multiple seamless bitmaps for multiple channels, with direction (grain), wood on kitchen doors
07:42 – Using Linear Floats to adjust multiple UVW Randomizers at once (for the diffuse, glossiness, etc. channels)
08:25 – Storing the UVW Randomizer in a 3ds Max material library with linked Linear Floats for easy re-use in the future
08:34 – Setting up the randomization for the cabinet doors
08:55 – Using the Seed to get different results
09:11 – Setting the Rotation to respect the grain direction (using Step)
10:04 – Working with non-seamless textures (3 wood planks in one bitmap)
10:16 – The set up for our test scene, to clearly illustrate results in the tutorial
10:50 – Setting up the Scale to show just one of the three planks
11:17 – Setting up the V Offset to adjust by one whole plank at a time
11:51 – Setting up the U Offset to avoid overlapping edges (seams)
12:37 – Final set up of the planks
13:08 – Third real world example, scaling leaves on a tree
14:20 – Thanks for watching! Multimap Tutorials:
https://www.youtube.com/watch?v=MiRRR6vgsEM (newest)
https://www.youtube.com/watch?v=fmlIb-fVfmw (older) The Corona Helpdesk UVW Randomizer page:
https://coronarenderer.freshdesk.com/support/solutions/articles/12000039642-what-is-the-coronauvwrandomizer-map-

visit Corona’s Youtube to view more

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