[gotoxy av-media]

hi to all,

i want to render a large image (15000px x 8000px) with some renderchannels active (alpha,obj-id,mat-id) but maxwell 2.5 just quits before reaching the first SL.
i am using an hdri for lighting the scene, no multilight enabled.
my system has 24GB Ram, more than enough for this scene. the task-manager shows 14GB in use after voxelisation and SL0.

first i lowered the image-resolution step by step and maxwell starts rendering fine with 7500px x 4000px - but i need 15000px x 8000px!

second attempt was disabling the renderchannels - and this works! now i can render even higher resolutions but only COLOR!!!
does this mean i have to render each channel seperately? this is very time consuming...i need at least the alpha-channel!

is this a known bug? is there any workaround?

help please!
munch

[gotoxy av-media]

...looks like embedded channels (alpha only) is the solution...

[gotoxy av-media]

any hints and tips? NL-team?!

it takes about 15h for an image of this size, so i have to rerender 15h to obtain each channel (mat-id + obj-id = 30h)?

thx4help

munch

[tom]

Have you tried unchecking View / Display Render and start it over?

[gotoxy av-media]

hi tom,

thank you for this advice!

now it starts rendering, but when i hit stop or maxwell reaches the desired SL - maxwellrender starts to write the mxi and then crashes!

but it is possible to open the mxi and save the channels.


thanks again tom!

munch

[ababak]

Are you using SSS materials? There is a known bug with rendering shadow channel with SSS.

[gotoxy av-media]

no sss-materials used, just simple layered metal materials!

[gotoxy av-media]

hmm, thought i found a workaround (opening the mxi and saving pngs),
but maxwell crashes when i try to save a 16bit-png - only saving in 8bit works properly!

munch

[gotoxy av-media]

can somebody confirm this?

...tried several formats like .exr or .tif etc. but maxwell always crashes while saving the image - only 8bit images can be saved!

munch