Reply To: The dreaded “GPU out of memory”

I’d guess there are at least a couple things contributing to that message.

1 – Sheer number of vertexes.  If there’s anywhere you can simplify things, that could help. . . though that might be challenging if everything’s already textured.

2 – Textures.  If you have a ton of high density textures that may be contributing to the issue.  Is there anywhere that a texture could be a generated texture instead of a hand drawn texture?  Are there any textures that are way higher res than they need to be?  If you’ve a relatively low detailed thing textured at 4k, that’s not helping you.

3 – Maybe bake layers before rendering?  Bake your textures, normals, etc.

I’m sure there’s a ton of other considerations, but those are what I can think of.

Oh, maybe break your scene up a bit.  Have all your assets all in individual files, and a “full scene” file that links to said assets.  In each of the individual files bake what you can.

If it really is just that dense of a scene you may be looking at some really crazy solutions.  Like having a block out instead of a real object in your scene – so you get shadows – and rendering a high res asset, like a person or complex robot – in its own thing, then composting the two scenes together.  That sounds like a ton of work though and I’d avoid it unless you absolutely have to go that route.

Just out of curiosity, what’s your video card?  Is it a dedicated video card, or is it integrated and using shared memory?

What OS?

How many verts in the scene?

How many textures do you have, what’s the resolution on them?

Luck!

(This is just what I thought of, off the top of my head.  Google’s your buddy and may have better answers.  More experienced Cookiers may have more insight.)