Handle CPU incompatibility crashes better

[BrunoDSL]

Currently, the add-on consistently brings Blender down with it when an incompatibility is detected and it shouldn't do that.

[dictoon]

What kind of compatibility do you have in mind?

[BrunoDSL]

I tried to run it on a cpu without SSE 4.1 instructions (mostly because there are no system requirements anywhere in any of the pages I could find). On the standalone engine, it shows an incompatibility error. On Blender, attempting to render just crashes Blender, when the ideal behavior could be simply showing an error or not rendering, etc.

[dictoon]

Hi @BrunoDSL, thanks for your feedback. We will add system requirements on the download page. We will also investigate whether we can gracefully abort and report an error if one of the requirement isn't met.

[dictoon]

Tracking tickets:
appleseedhq/appleseedhq.github.io#63
appleseedhq/appleseed#2731