All 3dsmax shapes are now supported in the custom MTL previews, also with rotation
Very nice!
wheeee! 
need to test it
nice man!
Looks good )
Pretty cool !
Can you load your custom scene in the material preview with lights and custom environment ? Like a custom shaderball with HDRI
no, just the geometry is supported at the moment
I really like that you try to support 3dsmax’s native tools and features. I hate it when every engine implements their own interface for something that can be shared.
Thanks mate!
Awesome feature!
Also, custom objects with multi mat would be so freaking cool
Good job mate!
Cool!
Corona is the best!!!
Cool!
i have never used anything other than the sphere, but this is good.
I am having a hard time going back to non-corona Mat previews. They are very nice
Keymaster, it’s amazing! You are the best!
Guys! How i can see something else except a box or sphere or cylinder? I can rotate them, but other…where?)
in the 3dsmax options dialog you can load custom scene
Wow! I found. I thought it will be 3dmax primitives…lol. Realy great thing!
need pony primitive in material editor and corona objects…
Good idea. We need a parametric primitive like blender’s ape and max’s teapot. We have mandelbulb but maybe let’s set up a contest?