Texturing with Substance Painter: which Normal format to use

In Substance Painter, when setting up a project, there's a choice between Direct X and OpenGL normal mat formats. Is one of them the correct one for using with Daz and Iray?
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In Substance Painter, when setting up a project, there's a choice between Direct X and OpenGL normal mat formats. Is one of them the correct one for using with Daz and Iray?
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Comments
OpenGL
Thanks!