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IRAY Massive problems

Bryan ValenciaBryan Valencia Posts: 57
edited September 2020 in Daz Studio Discussion

So I have a scene - literally 4 objects in the scene.  

1. Whenever I try to render with the NVidia GPU, I get an all black inamge in 10 seconds.

2, In the past, I could render at about 500-1000 max samples and get a decent reduction in fireflies.

3. THIS image for some reason is having all kinds of problems.

It's grainy as hell.  The room is using the DAZ Concrete shader, the girl is a V2, The lighting is dome only, there are no lights.  The HDR outside has a strong outdoor sun scene.

Now after rendering all night, I am seeing "metadata failures".

Does anyone have ANY IDEA what's up?  I also plan to add a volume dust cube, but I can imagine that never resolving into an image...

It seems to me that a simple image like this should render in about - oh 30 minutes.

Screenshot 2020-09-13 052954.jpg
862 x 688 - 283K
Screenshot 2020-09-13 053420.jpg
352 x 353 - 38K
Post edited by Bryan Valencia on

Comments

  • Richard HaseltineRichard Haseltine Posts: 102,287

    An interior lit by an HDRI is always going to be slow as you are relying on light bouncing around the room for areas that are not receiving direct light through the openings, using a ghost light or two to fill in will probably help (that is, soemthign like a plane with the Emissive preset applied and Cutout oapcity set to a very low but non-zero value), with adjustment to Tone Mapping.

    The metadata has nothing to do with the render - it's just that DS was apparently updating in the background at the same time (if you install an item with Connect and then start a render you will likewise see the download messages interleaved with the render messages). Whether the failed metadata updates matter or not depends on what they are - if you check the log it should give more information (Help>Troubleshooting>View Log File).

  • marblemarble Posts: 7,500

    If you are lighting an interior with HDRi, you could try using IRay Section Planes. I generally use the excellent X-Ray camera from Paper Tiger (Rendo) but that is just a camera with section planes parented so you could make your own. In case you haven't come across section planes yet ... they make mesh to one side of them invisible so that the HDRi light can shine through. You just position them out of shot so that the walls behind and above the camera are invisible. 

    Just to add that I almost always have a single photometric spot light too as the HDRi is often not enough.

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