The price is no issue: 100 or 500 $ to realize your dream-project.
I think this is not a problem at the long run.

My problem with this tool-set is still the import-workflow. They have only a 3ds-max pipeline. And if you do not want to spend 500 instead of 100 for the engine then you also dont want to spend 5000 for max instead of 800 for Lightwave (or even less for any other modeller).

They want to provide a SDK very soon so you can write your own importer. But how many customers are able to write their own importers (with animations etc.)?

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