ivanjay Posted December 28, 2013 Author Share Posted December 28, 2013 So I completed going through the GI in a grayscale rendering to try to work out all of the details. Here are my results.... Link to comment Share on other sites More sharing options...
blank... Posted December 28, 2013 Share Posted December 28, 2013 How is that worse? It's worse because FG needs to be set to much higher values to work with HDRI, and even then for interior it's very questionable what will you get. Native IBL works much better and faster for HDR ligting. It just doesn't work great for interiors. I think I will put in the mr sun as suggested and forego the HDRI and keep IBL off assuming all agree that is the better route Don't forget sky portals. Don't forget "Use photon target" for the sun. Read this: http://jeffpatton.net/2011/11/mental-ray-physical-sky-tips-for-architectural-interiors/ I want to put a gray material across everything and take a look but if I put in the override slot wont that remove my windows as well and thus eliminate a lot of the light coming in? Take care of scene management, name your objects, use layers. Then it's easy to hide what need to be hidden even in much more complex scenes. Link to comment Share on other sites More sharing options...
ivanjay Posted December 29, 2013 Author Share Posted December 29, 2013 So I ran into major issues with the sun as soon as I added it.... Not emitting photons stored after 10,000 etc.... I decided time to queue up the rendering let it go and continue to tweak and resolve this on a non-deadline so I can get it right, but get this one out the door. Another rendering I had queued is going to finish this morning so the Corporate Box will be up next Link to comment Share on other sites More sharing options...
blank... Posted December 29, 2013 Share Posted December 29, 2013 Not emitting photons stored after 10,000 etc.... _ Don't forget "Use photon target" for the sun. Link to comment Share on other sites More sharing options...
ivanjay Posted December 29, 2013 Author Share Posted December 29, 2013 _ Is that just in the modifier for mr sun? and I guess it will let me select what I want to shoot the photons at? Sorry, not in the office and without access to the file so I can take a peak at it tomorrow... Link to comment Share on other sites More sharing options...
ivanjay Posted December 30, 2013 Author Share Posted December 30, 2013 I got it, pretty easy and self explanatory. I just made the photon target the width of the building or thereabouts. Link to comment Share on other sites More sharing options...
blank... Posted December 30, 2013 Share Posted December 30, 2013 I got it, pretty easy and self explanatory. I just made the photon target the width of the building or thereabouts. You can go even smaller, just the openings. Link to comment Share on other sites More sharing options...
ivanjay Posted December 30, 2013 Author Share Posted December 30, 2013 Okay... And you suspect I'll see a pretty good improvement on my render time? I hope so! It should start the FG and Photon Map creation within an hour or so. Do you generally bake photon map and final gather map when splitting a still across tiles? That is what I have been doing... Link to comment Share on other sites More sharing options...
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