RE: Shadow Error

[Karl.Ruben.Pettersen]

Title: Message

Hi   I once had a similar problem, but unfortunately I'm not sure how I dealt with it, or how or by whom I got help from (maybe from Vesa?). I think the problem was either related to cylinders, imported v3.x cylinders, or imported cutted elliopsoids (curved conecylinder sortof) from v3.x. I think it narrowed down to certain imported objects having their cover attributte (and/or hollow) not being set correctly (maybe combined with flipped normals as per the v5 SP1 bug). At the time you couldn't set this attributte, but I believe you can now. However, if the project was imported ages ago, this could be the bug causing it.   Have you tried re-importing the bad cylinders only?   Does the rendering bug still occur if you re-create one of the bad cylinders and delete the old one?   If this helps, maybe someone could help write a script that reads the existing cylinder data, and re-creates them, and deletes the old ones?   It's too good a scene to go amiss caused by a stupid bug :-)   Sorry if I couldn't be of more help, but... errr... I hope it helps.   Karl Third try .... no attachments since these fail. The JPG mentioned is at   http://www.neico.co.nz/3d/RS3DImageFilesToPrint.html   and so is the "Guidelines to Getting Image Files to Printers" ... it's not a tutorial.   Anyway, hoping there's an answer to the Shadow error I've run into,   Neil Cooke ----- Original Message ----- From: Neil Cooke To: user-list@light.realsoft3d.com Sent: Wednesday, January 04, 2006 1:43 PM Subject: Shadow Error Second post since the the first didnt make it ... so resampled the jpg.   Hi List,   Attached JPG shows a render from a perspective camera and on the right an ortho camera. Analytic cylinders show an incorrect dark artifact that is not possible from the lighting.   I would like to render this scene in perspective but cant beat this thing.   Tried different illumination materials, etc., but all fail . . . although some give strange results within the areas concerned.   Only some cylinders imported or copied from an old file show this thing.   No artifacts show if I select "doesnt cast shadow" for the objects or "no shadows" from the light ... but while the artifact is gone so too is any scene dynamic.   Hoping there's a fairly simple fix since there are about 3,000 of these cylinders in the scene. Meanwhile I'll continue pressing buttons.   Neil Cooke This e-mail and any attachment are confidential and may be privileged or otherwise protected from disclosure. It is solely intended for the person(s) named above. If you are not the intended recipient, any reading, use, disclosure, copying or distribution of all or parts of this e-mail or associated attachments is strictly prohibited. If you are not an intended recipient, please notify the sender immediately by replying to this message or by telephone and delete this e-mail and any attachments permanently from your system.