[TEST] NVIDIA Endless City: GTX 580 DX11 Tech-Demo

NVIDIA Endless City: GTX 580 DX11 Tech-Demo

NVIDIA Endless City: GTX 580 DX11 Tech-Demo


1 – Overview

Endless City is a new tech-demo by NVIDIA for the launch of the new GeForce GTX 580. This is a Direct3D 11 demo with tessellation

Let the machines take over!

Our Endless City demo starts with a few dozen building blocks and uses an L-System to assemble these into complex structures, buildings, whole city blocks, and finally a sprawling and boundless megalopolis.

At any given time, there are hundreds of thousands of on-screen objects. The super-efficient NVIDIA® Tessellation engine scales the number of polygons for each object according to its surface detail and proximity to the camera . . . real-time,
high-resolution displacement.

So while you enjoy a leisurely glide through the city, the NVIDIA® GeForce® powering your flight will be churning through over 600 million polygons per second. Better yet, there will still be enough power to keep the lights running . . . hundreds of thousands of them, all lighting the scene dynamically.

All you need to do is sit back and enjoy the view.

Highlights of the demo include:
——————————-

Tessellation enables a continuous ramp on the level of detail, more than doubling the total triangle count and providing up to a 500x increase in detail on the nearest objects.
• Three dimensional displacement maps allow greater detail than simple height maps.
• The demo positions and renders over 600 million triangles per second with a single GPU.
• The city is procedurally generated. The buildings are constructed from a small set of objects into a city of complex structures using a set of rules called an L-system.
• In the area surrounding the viewer, over a million meshes are arranged by the L-system, including roughly 500,000 light sources.
• As the viewer moves, the demo endlessly (hence the name) generates more of the city to keep the viewer surrounded by buildings.
• The L-system randomly selects elements to assemble so each block looks different from the last but if you return to a place you saw before, it’ll regenerate the same buildings you saw previously.
• Split screen rendering modes operate in eye space so they look correct in 3D Vision.
• Screen-space ambient occlusion enables high quality shading on randomly generated and dynamic geometry which cannot be accomplished with precomputed texture maps.
• Dynamic lighting on everything; can shift from day to night.

Recommended System:
——————-

NVIDIA GeForce GTX 500 series GPU
2.6 GHz Quad core CPU
4 GB System memory
300 MB Hard drive space
Microsoft Windows Vista or Windows 7


2 – Screenshots

You can download the demo HERE (250MB).


More big screenshots here, at Geeks3D’s Big Pictures:
NVIDIA Endless City GTX 580 Tech-Demo (15 pictures total).


I tested the demo with a 3-way SLI of GeForce GTX 480 and with a 2-way SLI of GTX 460. The demo runs fine BUT does not support SLI :(

NVIDIA Endless City: GTX 580 DX11 Tech-Demo - GPU usage
3-way SLI of GTX 480: only one GPU is used!


No way to exploit the 3-way SLI nor the 2-way SLI…


UPDATE
I must be a bit tired but it was enough to select the SLI AFR1 (Alternate Frame Rendering 1) mode instead of NVIDIA Recommended (useless recommendation NV! Same kind of pb with FurMark!!).

NVIDIA Endless City: GTX 580 DX11 Tech-Demo - 2-way SLI of GTX 460
2-way SLI of GTX 460: works fine with AFR1 mode

NVIDIA Endless City: GTX 580 DX11 Tech-Demo - 2-way SLI of GTX 460
MSI Afterburner GPU usage monitoring


And Radeon HD 5000 / HD 6000 owners ? The demo doesn’t work on AMD cards:

NVIDIA Endless City: GTX 580 DX11 Tech-Demo
Anti Cayman routine!


Either the demo uses some CUDA code (perhaps for the procedurally generated city) or NVIDIA has just limited the demo to GeForce GTX 400 and GTX 500. Actually, I don’t know if it’s important, because… how can I say… NVIDIA has produced better tech demos.

Here is a nice video and I don’t know why, the rendering looks better on this video. Maybe the GTX580-touch?





NVIDIA Endless City: GTX 580 DX11 Tech-Demo
This scene: GTX 480 around 30FPS and GTX 460 around 15FPS

NVIDIA Endless City: GTX 580 DX11 Tech-Demo
The city by night

NVIDIA Endless City: GTX 580 DX11 Tech-Demo
The city by night

NVIDIA Endless City: GTX 580 DX11 Tech-Demo
Tessellation disabled (key 7)

NVIDIA Endless City: GTX 580 DX11 Tech-Demo
Tessellation enabled (key 9)

NVIDIA Endless City: GTX 580 DX11 Tech-Demo
Tessellation disabled (key 7)

NVIDIA Endless City: GTX 580 DX11 Tech-Demo
Tessellation enabled (key 9)

NVIDIA Endless City: GTX 580 DX11 Tech-Demo
Tessellation disabled (key 7)

NVIDIA Endless City: GTX 580 DX11 Tech-Demo
Tessellation enabled (key 9)

NVIDIA Endless City: GTX 580 DX11 Tech-Demo
Ooops! There’s a little problem with the fog…

NVIDIA Endless City: GTX 580 DX11 Tech-Demo
Global view of the city

NVIDIA Endless City: GTX 580 DX11 Tech-Demo
The LOD in action!

NVIDIA Endless City: GTX 580 DX11 Tech-Demo
Global view of the city

NVIDIA Endless City: GTX 580 DX11 Tech-Demo
Tessellation disabled (key 7)

NVIDIA Endless City: GTX 580 DX11 Tech-Demo
Tessellation enabled (key 9)

NVIDIA Endless City: GTX 580 DX11 Tech-Demo

The city with the day light



A small benchmark mode for the next update would be cool…



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