Reduced image buffer size

[sdanaher]

I was told Octane can render up to 8k px square but I'm only getting approx 5800x4100px with VRAM usage reported as 328MB/4GB. I tried a render at ~7950x5620px and it won't start after exporting. I'm using Cinema 4D on a Mac and a GTX980 4GB.

Also I can't export the scene to the standalone to see if I can get higher frame buffer there. The commands to edit the scene in Standalone are in there in the Cinema 4D Plugin as is save to ocs but neither work.

[aoktar]

Hi,
Of course can render 8k*8k and more. This resolution requires about 1.1 gb vram. Render Resolution completely depends to your free vram amount. First you should check available vram on LV. OSX can consumes very high amount of vram. Also be sure don't have additional render passes.

To check in standalone, start a render in LV and call "edit in standalone" command.

[sdanaher]

Hi aoktar

Thanks for the reply. I'm interested in using octane for print, can you clarify a few things?

- Can octane definitely render larger frame buffers than 8x8k (I was told not)?
- Can adding more cards increase available VRAM for bigger buffers?

I closed all other open apps and finder windows and have managed a render at ~8400x6000px

However I cannot pass a scene to standalone, that command does not work here. Standalone opens but no scene is transferred.

[aoktar]

we are talking without basic Math! I can render even 12k resolutions but i have a 6gb gtx780 as first card + 3gb 780Ti as secondary. But don't forget that also sceneS can consume some big amount of vram. It depends to polygon count + textures. The KEY is that how much is your FREE VRAM in your scene?

There was a problem on OSX version for some old versions. I'm talking for standalone editing. It's ok for latest versions. You can go with version 2.22 test3.

[sdanaher]

OK, the problem is not my maths (I didn't do any) I was given wrong information about frame buffer limits.

I've now reinstalled my ATI card in my Mac and run the OS off that. That has indeed left the full 4GB of vram available on the GTX card. I can now render at 10500x7400px (its a simple scene).

So if I add more GTX cards will it pool the vram and allow even bigger scenes and frame buffers? I need to know before I invest.

Re Standalone, it still does not work here. I'm using 2.22.2 (most recent listed). I assume .ocs is the native file format? Neither the 'Edit in..' command in Cinema nor a scene saved as .ocs will open in Standalone. Does Standalone need to be prepared in some way first (adding nodes etc)??

[aoktar]

OK, the problem is not my maths (I didn't do any) I was given wrong information about frame buffer limits.

I've now reinstalled my ATI card in my Mac and run the OS off that. That has indeed left the full 4GB of vram available on the GTX card. I can now render at 10500x7400px (its a simple scene).

So if I add more GTX cards will it pool the vram and allow even bigger scenes and frame buffers? I need to know before I invest.

Re Standalone, it still does not work here. I'm using 2.22.2 (most recent listed). I assume .ocs is the native file format? Neither the 'Edit in..' command in Cinema nor a scene saved as .ocs will open in Standalone. Does Standalone need to be prepared in some way first (adding nodes etc)??

Hi, who said that the exact numbers? I'm giving the math to do estimations. We can't know every setups of users. I can go up to 12k*12k with 3gb vram.

Ocs, orbx, etc. exporting is working here. Are you trying to open the exported files? Or have you pointed the standalone in settings?

[sdanaher]

I was asking if there is a frame buffer limitation that's all. Like with Cinema, which is something like 128k x 128k. I thought because it's a GFX card it might only be able to render to the card's maximum display size. Also someone else told me 8k was the limit.

So the answer is there is no hard limit except that imposed by available VRAM? If so that's great. Now I just need to know if its scalable - can I add more cards to have access to more RAM?

I've got scenes working in Standalone now, but Edit in... doesn't work. It launches 2.22.2 but doesn't load the scene. I can save the ocs from Cinema and load it manually now though.

[glimpse]

Hi, who said that the exact numbers? I'm giving the math to do estimations. We can't know every setups of users. I can go up to 12k*12k with 3gb vram.

It might be me who gave "false guidelines", but I though they are true, as I do have more than enough vram (6GB) to push resolution higher, but after 8k x 8k I get blank screen.. even single pixel more 8193 instead of 8192 & I standalone doens't show anything - preview window is blank..

so, please share how You manage to get more.

Thanks in advance & sorry for confusion then.

[smicha]

Switch viewport from OpenGL to software in settings. I rendered 12kx... image with no issues on 6GB.

[smicha]

Actually I just tested 'OpenGL' and 'software' settings. 20k x 11k works fine