3Impact is the engine that is used in 3D Rad.

It is the other way around afaik. First there was 3D Rad 1 up to 5. Then they developed 3Impact. They have stopped/abandoned the development of 3D rad for that. And then Fernando came back to continue or better restart with 3D Rad, using the 3Impact core engine ...

trueSpace 7.6, A7 commercial
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