[Martin Stacey]

Cool, thanks for clearing all that up. Back to colorista II for me then!

Yeah, the preserve RGB thing seemed only right thou, when i was trying to get 100% red out of AE and into Color. I’ve tried everything, and just can’t get anything from AE to Color without the RGB values changing.

thanks again.

[Martin Stacey]

did you ever solve this problem?
i’ve just posted a long thread about this, and everyone think’s i’m crazy. but yeah, how can this be right. something must be wrong surely.

[Martin Stacey]

yeah, cool thanks.
yeah i tried changing the codec to 32bit tiffs, but that had the same problem.
but the thing is, when i save the ram preview to disk, it’s in 32bit tiffs and it looks right. and also when i press the space bar to play the same rendered sequence it looks right. which is why i think that the ram preview is doing some weird kinda of hardware acceleration on it. cause it seems that the files it’s rendering are right. just ram preview is doing something weird to them when it plays.

[Martin Stacey]

is this not a problem for anyone else?

[Martin Stacey]

Also, if i change the output module settings for ram preview to 32bit tiffs, then do a ram preview, then save the ram preview, when i look at the files they look right, i.e. 32bit.
then i bring them into ae, and they look right. then i ram preview them, and again they turn back into 8 bit.
so the ram preview IS doing some weird on the fly conversion to 8 bit, even when the files it is rendering are 32bit.

[Martin Stacey]

hi ya,
i’ve been doin some more tests. and i think the problem is to do with having ‘Linearize Working Space’ turned on.
for some reason when this is turned on, ram preview bands. when it is turned off, still in 32bit depth, sRGB working space and ‘Blend Colors Using 1.0 Gamma’ turned on ram previews are fine.
Also, i tried turning on ‘Hardware Accelerate Compostion, Layer, and Footage Panels’ and this seemed to do some banding on the comp window, which made me wonder if when i’m ram previewing it’s doing some weird hardware acceleration on the comp window, which doesn’t get used if you just press space bar.
am i the only one that get’s this? anyone else?
if you wanted to replicate what i’m doing, just create a new comp, 32bit, srgb, linear, and create a white solid on a black background and then blur the white solid. then ram preview and the blur will band like mental. hopefully.
i’ve tried it on a few computers. what the hells happening?

[Martin Stacey]

yeah, i understand that it’s an 8 bit codec.
but this is the thing.
when i play it by pressing the space bar it looks correct. the space bar and the ram preview are accessing exactly the same rendered file. it’s like it’s doing a weird on the fly conversion to 8 bit when i press the ram preview button, but not when i press the space bar. but they are playing the same rendered file.
so a work around would be:
ram preview the timeline to render the sequence.
then stop the banded looking ram preview.
and press the space bar, and get the non banded preview without having to wait for it to render cause it’s using the rendered information from the ram preview.
but surely there must be a better way than this.
thanks for the help

[Martin Stacey]

but how comes when it’s not in ram preview it can display it properly?
i.e. when it’s not ram previewing it looks right. and when i play it by pressing the space bar it looks right. just not when i ram preview.
also it’s not like it’s rendering it twice, once at 8bit and once at 32bit. it’s seems to render it once at 32bit. but when you press ram preview it converts that to 8 bit.
weird.

[Martin Stacey]

yeah, cool, i (kinda) understand that. but the weird thing is when it’s not in ram preview i see it how i’d expect, i.e. nice gradients, proper interactions with light. but then when i ram preview it’s like it converts it to an 8 bit project, i.e. banding, etc. so the green bar fills up while it’s ram previewing, and the ram preview plays with this banding. but then if i stop the ram preview and play with the space bar it shows how i’d expect a 32bit project to look.
weird huh.

[Martin Stacey]

can anyone help me with this, still a year on i’m none the wiser.