So we use Keyshot for rendering a lot of the products we sell. I have recently taken over our keyshot library and have noticed we sometimes have problems with certain materials on certain products. Digging in further I noticed for example one plastic cup we make that is 6.675" tall, is in fact 215" tall in the keyshot scene. Would having the product as close to actual size improve our material look, because the settings for a half foot cup are very different for a 17 foot cup. My only option to fix this is to export the cup as an STL file into Blender, then resize correctly in Blender, then re-export it back into Keyshot. Is this worth the hassle? we have about 200 products I would need to slowly do this to.
Seems like somewhere you go from imperial to metric. You can also change the units from within KeyShot
If you pick feet here and the model was in cm it will ask you if you want to Keep the Scene size or Scale Scene. The first one just changes the units you use, that does make a difference with for example objects with transperancy but not with other textures. You need the second option I think, ‘Scale Scene’. That will scale the model to the right size and the textures with them.
This will I think save you the entire Blender step in between, especially since you already have the models in KeyShot.
For future models I would really take into account the way you export them or which units you applied in the 3D program you use. Size matters for how light interacts and some 3D modelling tools don’t even apply a certain unit to a scene.
For example, 3DSMax uses it’s own internal system units. You can change that to the units you prefer but 3DMax itself doesn’t really care, it’s just all coordinates and you can either put the default units on a certain thing like feet or metres or you do it on export.
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the place it really matters as to scale, i’ve found, is in lighting intensity settings, and material transparency distances. Those all want to use real life numbers, so it really helps if you model is to real world scale in Keyshot. The renders will still look great if its not, but you will end up having to enter in unrealistic numbers for a lot of the settings like transmission depth and lumens.