Trouble with Mental Ray AO on objects which are very far from the origin

[Tim Crowson]

Title: Signature

We have some scenes that are rather large, with objects that are needing AO shading, but which are very far from the origin (15,000-20,000 units away). The environment is enormous. Anyway, the further the object is from the origin, the longer it takes MR to render it's AO. We can even take a simple scene with a couple of primitives, move them way out, and see the same slow rendering. 1) is this unique to MR? 2) is there a known solution? (apart from scaling the whole scene down, which is not an option) --   Tim Crowson Lead CG Artist Magnetic Dreams Animation Studio, Inc. 2525 Lebanon Pike, Building C. Nashville, TN 37214 Ph  615.885.6801 | Fax  615.889.4768 | www.magneticdreams.com tim.crow...@magneticdreams.com