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. 00:00 - Title screen 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: (newest) (older) The Corona Helpdesk UVW Randomizer page: