Hello, I hope someone can help me with this one cause I couldn’t find a similar post. When I render my NURBS geometry or meshes with V-ray it renders jagged. It displays OK in the view-port but the renders are jagged. It renders fine with rhino render. Also if I disable the hardware acceleration the…

A few more images. V-ray, rhino render and view port - with and without hardware acceleration. Any help will be very much appreciated!!! Also this happens only in this file but any new geometry I create is jagged as well. Thanks!!! [image] [image] [image]

I am pretty sure your geometry is very far from the origin, which is the most common cause of these effects… - can you check to see where your stuff is located relative to World 0? If it’s very far, try moving it closer to the origin, clear all the current meshes with ClearAllMeshes and then try ag…

Thanks!!! That was the problem, I’ve heard it before but I didn’t think of it. Thanks again.

@brian I think the main reason stuff ends up way out there is because it it’s imported that way. Would it make sense for Rhino’s import plugins to scan for this as it’s coming in and issue a warning with a description of likely problems and offer the user a chance to move the whole thing to the wor…

As a person that used ot have to work in very large State Plane coordinates, an automatic change would be a really bad idea. I needed to precisely control the Translation so I knew what it was. I’d to this by choosing a point near the lower left corner of the project, and insert a block at that l…

Rhino itself is double-precision. The display mesh isn’t.

[image] JimCarruthers: Rhino itself is double-precision. I see. [image] JimCarruthers: The display mesh isn’t. [open can of worms] Maybe it needs to be? [close can of worms]

Good News! [image] John_Brock: However, when you export to a mesh format, it will revert to single precision so you’ll still need to manage it. What’s the reasoning behind this? Seems to me that it should be an option depending on what the export is for. Rhino can’t be the only program dragg…

No reasoning. If the export format doesn’t support double precision meshes, we can’t send one out. If the export format supports DP meshes, then it will be easier for us to not have to strip them down to send them out. I don’t have a list of the mesh formats and what their tools allow or limit. I…

Geometry renders jagged

Rhino Rhino for Windows

John_Brock (John Brock) November 9, 2015, 7:38pm 9

Meshes generally will be double precision in V6.
However, when you export to a mesh format, it will revert to single precision so you’ll still need to manage it.

The pain with models far away from the origin

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Geometry renders jagged

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