Comments on: OpenGL Geometry Instancing

By: [Test] OpenGL Geometry Instancing: GeForce GTX 480 vs Radeon HD 5870 - 3D Tech News, Pixel Hacking, Data Visualization and 3D Programming - Geeks3D.com

Tue, 29 Jun 2010 20:32:39 +0000

[...] for updating the OpenGL Geometry Instancing demo pack updated I released more than 2 years ago on my infamous lab. The first version of the demo pack has been developed and tested with a GeForce 8800 GTX and a [...]

By: lookup

lookup — Fri, 28 May 2010 08:04:17 +0000

Hi,

The download files are not available….

By: marcin

marcin — Fri, 19 Feb 2010 11:12:33 +0000

Link to demo is not working

By: Alessandro

Alessandro — Wed, 30 Dec 2009 11:08:13 +0000

The download file isn’t available anymore.

By: Alex

Alex — Thu, 24 Sep 2009 12:22:49 +0000

Hi.

You wrote:
“I find that very weird since the différence between 10000 render-calls with glDrawElements and 25 render-calls with glDrawElementsInstancedEXT is not verx important.”

But have you also considered the CPU-Overhead. The impact might not be very big due to GPU work, but it should definitely on CPU side! Have you checked this too?
I mean in terms of CPU/GPU boundness.

Anyway, good work, this is quite interesting.

Btw, I got similar results with texture buffer objects.

By: Joh

Joh — Mon, 24 Aug 2009 08:17:27 +0000

the download link of the DemoPack seems broken… could you fix/reupload it? thnx

By: Delta

Delta — Mon, 29 Jun 2009 14:39:32 +0000

Thanks for the information! The tests you have performed give important insight about the relationship between the batch sizes and the instancing techniques.

By: JeGX

JeGX — Tue, 21 Apr 2009 16:27:17 +0000

yes, the way the capability is checked is based on old NVIDIA drivers. Start GPU Caps Viewer GI demo to see the difference

By: Aw

Aw — Tue, 21 Apr 2009 16:20:28 +0000

I have a GTX 280 and the F5,F6 options throw up the dialog about needing Gforce 8+ hardware.
just FYI..

By: Game Rendering » Instancing

Game Rendering » Instancing — Tue, 21 Oct 2008 21:38:05 +0000

[...] Some test made that shows when to use instancing and when not http://www.ozone3d.net/blogs/lab/?p=87 [...]