anthonylongman Posted May 25, 2011 Report Share Posted May 25, 2011 I want to know if it is possible to deliver light to an object via a 100% reflective geometric surface (curved, basically conical). I have tried this and it seems not to work, though Matt Hoffman thought it should. Maybe there is some setting I don't have enabled properly? Quote Link to comment Share on other sites More sharing options...
Tomas Egger Posted May 25, 2011 Report Share Posted May 25, 2011 Ola Anthony, Do you mean, use a spot light or area light with a mirror to light another surface? Thanks Tom Quote Link to comment Share on other sites More sharing options...
anthonylongman Posted May 25, 2011 Author Report Share Posted May 25, 2011 Basically, yes - although I had planned on using a parallel light... Quote Link to comment Share on other sites More sharing options...
Tomas Egger Posted May 25, 2011 Report Share Posted May 25, 2011 Ola, Anthony, I tested with a Area Light, didnt work, I really dont remember to see a sample like this, good question yours. Dave, Ian? Any thought? Thanks Tom Quote Link to comment Share on other sites More sharing options...
Arketype Posted May 26, 2011 Report Share Posted May 26, 2011 Anthony- make sure you have Global illumination enabled, and that "reverse illumination" checkbox is ON. Quote Link to comment Share on other sites More sharing options...
anthonylongman Posted May 26, 2011 Author Report Share Posted May 26, 2011 I am still learning about GI. Where is the Reverse illumination checkbox? Thanks... And I guess this will not work with a parallel light, right? Quote Link to comment Share on other sites More sharing options...
bwcc Posted May 26, 2011 Report Share Posted May 26, 2011 Quote Link to comment Share on other sites More sharing options...
anthonylongman Posted May 26, 2011 Author Report Share Posted May 26, 2011 This is exactly what I need to be able to do, so I am encouraged. Now all I need is to learn where the checkboxes etc. are (see my previous post) Quote Link to comment Share on other sites More sharing options...
Arketype Posted May 26, 2011 Report Share Posted May 26, 2011 Render Menu--> Global Illumination... Enable Global Illumination box must be checked. Bottom right area "Reverse Illumination" "enabled" box should be checked. This should get you started. :) Dave Quote Link to comment Share on other sites More sharing options...
anthonylongman Posted May 26, 2011 Author Report Share Posted May 26, 2011 That was the missing information, thank you so much... now I know what I am looking for (the ON switch) I was able to locate it in the documentation - eleven pages into the GI chapter and half way through the topic list... I need to spend more time with this program. Thanks again, Anthony Quote Link to comment Share on other sites More sharing options...
anthonylongman Posted May 27, 2011 Author Report Share Posted May 27, 2011 Update: I had one successful rendering of the setup which delivered light to the surfaces. Now I am getting nothing again. I think I may need to restart my machine, it has been running for a week and something may be out of whack. I have been running a long render on a slave machine via renderama on this machine. The slave has one more section still rendering - will quitting and restarting renderama compromise stitching of the slave render output in renderama after restart? Quote Link to comment Share on other sites More sharing options...
meester smeeth Posted June 1, 2011 Report Share Posted June 1, 2011 Quitting renderama wont affect the stitching, you'll just have to render the unfinished strips again. Just press GO and it will resume. Quote Link to comment Share on other sites More sharing options...
anthonylongman Posted June 2, 2011 Author Report Share Posted June 2, 2011 Quitting renderama wont affect the stitching, you'll just have to render the unfinished strips again. Just press GO and it will resume. Thanks for the tip... One more question about Renderama. I am trying to render a rather ambitious still frame that is very heavy on calculation. I am using Renderama on 16 processors. I find sometimes I need to force the rendering to stop, without waiting, because it's just taking too long. What is the best procedure? I have started by quitting Renderama, then quitting each camera in turn, then deleting the camera temp file for each camera, then deleting Renderama jobs folder. Is there a less laborious way to do this? Quote Link to comment Share on other sites More sharing options...
anthonylongman Posted June 2, 2011 Author Report Share Posted June 2, 2011 Thanks for the tip... One more question about Renderama. I am trying to render a rather ambitious still frame that is very heavy on calculation. I am using Renderama on 16 processors. I find sometimes I need to force the rendering to stop, without waiting, because it's just taking too long. What is the best procedure? I have started by quitting Renderama, then quitting each camera in turn, then deleting the camera temp file for each camera, then deleting Renderama jobs folder. Is there a less laborious way to do this? Actually I figured this out, just quit Renderama, then quit each camera in turn, then clicking on the "Camera" menu of each one in turn to get their attention so to speak, which hastens the quitting process, then relaunch Renderama, then delete the job from the render window. Quote Link to comment Share on other sites More sharing options...
Tomas Egger Posted June 2, 2011 Report Share Posted June 2, 2011 Ola Anthony, Sorry for my delayed answer, you are correct, this is the actual way to work with several Slaves (in your case, 16) and Rama using EIAS 8. This will be one of the amazing changes on EIAS 9, you will need only one Rama and one Camera in your 16 cores machine. :) Thanks Tom Quote Link to comment Share on other sites More sharing options...
meester smeeth Posted June 7, 2011 Report Share Posted June 7, 2011 Anthony, looks like you sorted yourself out there. One thing though in general, it's not usually best to delete your Renderama jobs folder, this is where the textures/models etc are saved (in their own re-named format),for use in the following renders of that project. I only really get rid of them when it's an old job and space may be needed etc. Quote Link to comment Share on other sites More sharing options...
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