Neil Woodhouse Posted January 25, 2007 Share Posted January 25, 2007 Hi all, I'm seeking some advice from the community with regards to a project i am currently working on, specifically lighting it. I am visualising one floor of a Textile Mill that is being converted into offices here in Yorkshire ( Huddersfield to be accurate ). The floor is 100m long, 20m wide and 3m high. The ceiling is coffered, these arches run left to right across the width of the building, each arch is approx 3m wide by 800mm high supported by two rows of columns that run the length of the floor. I have placed in each arch 3 VRay linear lights 1800mm long to simulate fluro lights, there are 48 of these lights. I have populated the floor with the usual desks etc and two glass partioned offices. I have also placed 18 FPoint lights on the walls to act as wall lights. A test render shows that i have the lighting from the ceiling correct. However the walls are rendering out black. I have considered using VRay area lights to illuminate the walls but another test render shows this not to work correctly. So....any suggestions, do i go for omni as a 'fill' - if that is the correct term -or what? Any suggestions advice etc would be very appreciated. Regards Neil Woodhouse Link to comment Share on other sites More sharing options...
Jim Mann Posted January 25, 2007 Share Posted January 25, 2007 Can you post a snapshot to illustrate what you are describing? Link to comment Share on other sites More sharing options...
Neil Woodhouse Posted January 25, 2007 Author Share Posted January 25, 2007 Jim, No problem. I have a png file from a test render on very low so it's a bit blobby, i'll have to convert it to a jpeg because the file size is over the forum limits. Neil Link to comment Share on other sites More sharing options...
martin walker Posted January 25, 2007 Share Posted January 25, 2007 Neil Id suggest using LWF, and raising your env light multiplier right upto about 10. Iv'e gotten some good results working like this and nice quick rendering times. Is the mill town centre ish ? ( I used to live in Hudders) Link to comment Share on other sites More sharing options...
Neil Woodhouse Posted January 25, 2007 Author Share Posted January 25, 2007 Here is a test render. It's a bit jagged because it was done on a low pass, the offices are now glass with blinds. I'm resonably happy with the light - although i can't figure the bright light towards the end of the floor. As you can see the walls are not coming up right ( they are mapped sandstone ). Hope this gives you some idea. Neil Link to comment Share on other sites More sharing options...
Neil Woodhouse Posted January 25, 2007 Author Share Posted January 25, 2007 Martin, The mill is called 'Folly Hall' it's just off the town centre, not sure if that is what it was originally called. Neil Link to comment Share on other sites More sharing options...
sterealkey Posted January 25, 2007 Share Posted January 25, 2007 Strange Set your wall material to be double-sided or flip the normals, it seems like maybe the normals could be facing outwards. That would be my first guess Which program are you using? Max? Link to comment Share on other sites More sharing options...
Neil Woodhouse Posted January 25, 2007 Author Share Posted January 25, 2007 I'll try that, yes it's MAX. Link to comment Share on other sites More sharing options...
Jim Mann Posted January 25, 2007 Share Posted January 25, 2007 Don't know if you have solved it already but as mentioned earlier, it looks like the geometry might be inside-out. Either check the wall geometry or try adding a simple box object and applying the wall material to that to check that its not the material doing it. Link to comment Share on other sites More sharing options...
Neil Woodhouse Posted January 26, 2007 Author Share Posted January 26, 2007 Jim, I thought i had......then MAX crashed ( what a surprise ), when i went to re-render i now get v-ray error messages saying "Scene Bounding Box Too Large, raytrace may not calculate correctly " and then i get this horrendous grey rendered image, heaven knows what's happened there, i just hope that i don't have to re-do the work, there's the best part of 30 hours in it so far.... ah well, these things are sent to try us. Neil Link to comment Share on other sites More sharing options...
Jim Mann Posted January 26, 2007 Share Posted January 26, 2007 Thats annoying, but it sounds as if you had fixed it...possibly. When you say that the image rendered grey, do you mean that it came out monochrome or that it is just a sheet of grey? If its the latter, is it possible that after fixing your inverted normals the camera was the wrong side of a wall? As for the "Scene bounding box..." message, if its any consolation, I get this on every single scene and haven't noticed any problems. Hope you get it sorted, it must be driving you nuts. Jim Link to comment Share on other sites More sharing options...
Neil Woodhouse Posted January 26, 2007 Author Share Posted January 26, 2007 Jim, It rendered monochrome. So i've gone down the path of common sense to preserve what sanity i have left, and gone back to an earlier version of the scene, which needs about an hours worth of tweak. I'll keep you posted Neil Link to comment Share on other sites More sharing options...
3D_IC Posted April 10, 2007 Share Posted April 10, 2007 This job is probably done and dusted, but it looks to me like you could have duplicates in place where objects are rendering black. Link to comment Share on other sites More sharing options...
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