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I know this subject repeatedly gets hashed out on the forums, but I have tried all suggestions I have come across thus far- so if anyone has any insight please chime in! I need to produce 7200 x 3600 px with rhino 5/vray 2. It is of an interior / exterior habitat for a rhinoceros, (Rhinos in Rhino!) thus, lots of vray proxy grasses, plants, trees, rocks. (though most of the trees are actually flat planes) I rendered out shots at 2048 x 1024 px, and my general everyday settings with dr spawner over 4 networked computers, each took 45 minutes or so, no problems. So, on to render large, and I'm using brute force and ir map, (light cache is always finicky and crash happy for me with lots of plantings) screenshots of settings are attached- I am pre- calculating IR map, and rendering to vrimg, and no memory frame buffer In the past, these have worked for me for large stuff. Especially key was the tweaking the default displacement settings, as vray's default is too high. I am now hoping I can get the RGB and alpha channels rendered out, and plan on scaling up other channels I need in photoshop for post, as I read in a Max/vray thread that the z-depth pass can be heavy if you have lots of proxies far away. Any insight would be greatly appreciated, especially anyone familiar with rhino/vray... things just behave a bit differently than max/vray. Maybe I should turn off DOF? I know lens effects can add significant time... I have attached some of the draft shots- (btw each view is in a separate file now, and geometry not affecting the view is deleted, materials and scene purged) settings- draft shots-

Hi i'm not sure if this post should be here or in archviz business discussion, but i would appreciate any experience sharing My ordinary work consists on producing high resolution renders , generally around 4500 x 2800. The standard use for this is of course, normal printing, brochures, media, and up to 100 cm prints, you know the "normal" stuff which works well with the given resolution. I specify all this information on the deliverables section of my price quote. Then client ask me for a higher resolution version since printing a 2,5 x 2,2 meters image for indoor use, viewed at 80cm looks...pixelated (as expected.) Then i (try to) explain that, THAT wasn't part of the original request, and it involves higher detail, more hours and of course post producing a 12.000 px wide image is far more complex computer wise. after email number 34 and doing all kind of metaphors to explain to a complete layman i'm starting to doubt about what i'm doing, and would ask my fellow visualizers. The thing is, how do you manage this situations, or how do you charge for redoing a much higher resolution version, if technically possible. after all there is art in the process, and hours of retouching and layers of this and that to produce the final image, which in many cases may be ignored by less sensitive clients. Thank You! Sergio

I recently printed a 48" x 24" image for a client at 150ppi. The size of the image was 7200x3600. The quality was beautiful, no problems. He's now requested it to be blown up even larger. He wants a 16 foot by 8 foot image (4.8m x 2.4m). I don't think re-rendering at 28800x14400 is the best way of doing this. What sizes and what ppi can I get away with while still preserving image quality? The image is going to go in a store window, so it has to remain fairly high quality from a few feet away. Michael