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emissive surfaces really slowing down Nvidia Iray Preview?

lilweeplilweep Posts: 2,550
in Daz Studio Discussion

 

If for example, I load Genesis 8 male dev load into a scene and then apply emissive properties to a few of the surfaces, then it makes Iray preview so excruciatingly slow that it becomes impossible to rotate around in Iray Preview.

I dont remember this being the case...Is anyone experiencing this?

Comments

  • Richard HaseltineRichard Haseltine Posts: 102,252

    Yes, emissivs can slow things down - for one, as I understand the process, each polygon in the emissive surface gets treated separately, so that is a lot of calculations for each pass - that's based on the final, SubDed resolution.

  • lilweeplilweep Posts: 2,550

    but its reaaaally slow

  • lilweeplilweep Posts: 2,550

    Okay, i fixed it. It wasnt just Emissives, everything was slow.

    I changed Iray Preview mode's Draw Settings to Biased instead of Photoreal and now its useable again.

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