rendering for big posters

[nodar1978]

hi guys

what kind of technique you use when you need renderings for big posters, for example for architectural building posters. I meed which resolution and which sizes?

thanks

[nodar1978]

and how long it usualy take, and whos doing this job, can you do it on one pc or for this job usually needed render farm?

[Juan Altieri]

sometimes depends on the size of the poster, and the distance of looking,

you don't need a render farm, just a bit more of the resolution, in some cases with 20 or 10 dpi (dots per inch) is enough, i never make renders with more than 6000 pixels long, in the most of the situations have no sense, just resample the pic and sharpen it if you need more...

but depends on the distance you will looking at the pic....more distance less resolution...(less dpi)

just take in account this example: ths size of a road advertising (think about a photograph) is in the most of th cases 10 meters ( like 400 inches), if you get 72 dpi, you will need a pic of 28.000 pixels long... je...

just thinking about a photograph of this resolution....and wich camera you need to take it.....

[Crazy Homeless Guy]

when rendering large format you need to be conscious of how your materials are setup, and which AA you are using more than anything else. simply going from 2500x1500 to 5000x3000 is 4 times the amount of pixels, and the image will take 4 times as long to render. i am doing a series of images right now that are 5000 wide. both the floor and ceiling are have low numbers for the glossiness. i am looking at roughly 32 hours for each image. this is using a 64bit dual-quadcore machine with 8 gig of ram. i could have used interpolation to speed up my times, but i didn't want to sacrifice the quality of the images. these are poster size prints, that will be viewed close and far.

[nodar1978]

thanks guys, good info, really will help me