GPUs

A public forum for discussing and asking questions about the demo version of Octane Render.
Forum rules
For new users: this forum is moderated. Your first post will appear only after it has been reviewed by a moderator, so it will not show up immediately.
This is necessary to avoid this forum being flooded by spam.
picajol
Posts: 68
Joined: Thu Oct 20, 2011 8:45 pm

So this is the forumula?
(width x height x 3) / (1024^2) = number of Mb in memory

The guy in the post had a texture size 8000x6000 with jpg. file beeing 7.49Mb big
=48.000.000 x 3=144.000.000 / (1024^2)= 137Mb when loaded in the scene?

Then why did another user said "So your textures take "less"; ~11 Mb"

I must be doing something wrong here :(
Zay
Licensed Customer
Posts: 1123
Joined: Sun Jan 17, 2010 2:53 am

I have no idea what the "true" formula is. When I had a graphic card with a small amount of RAM I couldn't get the "true" calculations to work with Octane. So I made up my own which pretty much worked out fine.
My calculation ratio is 3.85 . So if I had a JPG image of 8000x8000 pixels, my simple calculation was 8x8x3.85= 246.4MB. So when I added the image, the Octane RAM counter should add 246.4MB to the scene. Not the "true" calculation but it's fairly close to the Octane RAM counter and that's what I needed so it didn't crash. Try it!
Win 11 Pro | i5 12600K | 32GB ram | 2x GTX 1080Ti + 3080Ti - studio driver 560.94| Modo/Blender/ZBrush/Daz/Poser
picajol
Posts: 68
Joined: Thu Oct 20, 2011 8:45 pm

Seem ok for me.
.jpg are usulay 2000x2000 so to your calculation that would be 2x2x3,85=15,40Mb of RAM.
If I have 10 of these in my scene wich are usualy for big floors....around 200Mb of memory on textures.
What aboth polygon count?
How that taken into VRAM?
eg. 1 million polys= .... VRAM
Elele
Licensed Customer
Posts: 162
Joined: Sat Nov 16, 2013 4:27 pm

How come i can't post in other threads? I'd like to know if i should get the standalone version or a plugin version (what are the benefits/drawbacks of a plugin).
User avatar
glimpse
Licensed Customer
Posts: 3740
Joined: Wed Jan 26, 2011 2:17 pm
Contact:

picajol wrote:Seem ok for me.
.jpg are usulay 2000x2000 so to your calculation that would be 2x2x3,85=15,40Mb of RAM.
If I have 10 of these in my scene wich are usualy for big floors....around 200Mb of memory on textures.
What aboth polygon count?
How that taken into VRAM?
eg. 1 million polys= .... VRAM
"..to render 26 million triangles you need around 4GB of VRAM." Roeland .@OTOY
picajol
Posts: 68
Joined: Thu Oct 20, 2011 8:45 pm

Thanx!
Post Reply

Return to “Demo Version Questions & Discussion”