Rendering limitations?

[globule22]

Hi all,

I have a big project on the tube and i may be use terragen for create realistic sky atmosphere.

This atmosphere will be incorporated in a huge spherical panorama.

With the first calculations of my shoot, the width of the panorama will be around 393120px.

So my question is: can i render a spherical panorama (using 6 cube faces of 125197 px of width) ?

If time is just the solution, no problem, the first test for my fist shoot gave me a rendering time of 16 hours

Thanks by advance

Regards

[Hetzen]

You can try, but 125k pixel renders seem like madness. Why on earth do you need that much resolution? Especially when clouds and sky you can often get away with 200%+ scaling.

[globule22]

Why on earth do you need that much resolution?

Because i will shoot the panorama with a high zoom lens, and the final size will be around 77Gb for high zoom quality, it will be a high gigapixel panorama

And i need to have if possible the same resolution of pixel for my center image and for the skies

I will try 125k this night.

Regards

[Klas]

Correct me if I am wrong:
125197 * 125197 = 15 674 288 809 pixel. Each pixel 16 bit (2 byte) for r/g/b:
15 674 288 809 * 6 = 94 045 732 854
This is what you need on memory.

I am not sure if this can also be swap-memory.

[Goms]

well... i think with a good program you can stitch this amount of images. There has to be a way as there are some 20-30 GPx images out there.
But TG2... You could do a lot of small images and stitch them also, with a good program.
Otherwise you will need around 50 GB mem according to my calculation.

So Hetzen is right, this is madness.

@Klas: I get around 50 GB for 24 bit or 25 GB for 16 bit.
px^2 for pixels
*24 (or *16) for depth
/8 for bytes
/1000/1000/1000 for GB

[Henry Blewer]

Using such high resolutions for HiDef TV is not necessary. The real problem will be pixel blending the various elements in the composite image sequence so they look 'natural'. I would keep the resolution to the native 1920 x 1080. Render the sequence animation to match the camera motion external to T2. This should limit memory use and make the composite final easier to manage.

[jo]

Hi,

You won't be able to render an image 125197 pixels wide in TG2. The limit for image size in the current 32 bit version is somewhere in the low thousands. The only way I can think of to do this would be to render much smaller tiles and then stitch them back together with

That is a massive image though. What DPI are you trying for? I know TG has been used for planetarium displays (not sure if that's the same sort of thing you're doing) and nowhere near that image size would have been used.

Regards,

Jo

[Hetzen]

Why on earth do you need that much resolution?

Because i will shoot the panorama with a high zoom lens, and the final size will be around 77Gb for high zoom quality, it will be a high gigapixel panorama

And i need to have if possible the same resolution of pixel for my center image and for the skies

I will try 125k this night.

Regards

I see, but would it not be easier to take the camera into TG, as njeneb said earlier?