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Mafia II Apex PhysX On/Off Comparison Videos

YouTube user’s Robersdee24 and hberntsen2 have both put together some very nice PhysX comparison video’s from the recently released Mafia II demo that features GPU Apex PhysX along with a benchmark that puts the PhysX to use. The videos show what the game looks like with PhysX on and PhysX off. As you can see there is a clear difference when PhysX is enabled. Aside from the extra debris that is generated from cars exploding or bullets tearing up wall’s the game also uses Apex PhysX cloth simulation as you can see in the video to give the players clothing more realistic movement. Check out the video’s below.

Mafia II physics on off comparison from hberntsen2:

Mafia 2 – Apex Physics Comparison from Robersdee24:

NVIDIA PhysX Fluid Demo Updated To 1.0.1.3

NVIDIA has updated the PhysX fluid Demo to 1.0.1.3. The demo is basically a demo to show off PhysX based water or the more technical term, Smooth Particle Hydrodynamics (SPH). This is a great little program( less than 20MB) that can be used to quickly test out a new PhysX setup such as a dedicated PhysX card or a Hybrid ATI and NVIDIA PhysX setup. Using a simple toggle you can easily switch between Hardware(GPU) and Software(CPU) PhysX to not only to see if your dedicated PhysX card is working but to also see how a GPU helps improves PhysX performance. When I am installing a new PhysX setup I always install this program along with PhysX FluidMark to make sure everything is up and running properly.

You can download the demo here from the NVIDIA Power Pack page and in the event that it is not working PhysXinfo.com always has the latest PhysX Files. You can download it here.

From NVIDIA:

Fluids: Technology Demo
The primary purpose of the NVIDIA® PhysX™ technology Fluid Demo is to illustrate Smooth Particle Hydrodynamics (SPH). The demo contains two different scenes, the Outdoor and the Logo Scene.

Outdoor Scene
This scene showcases SPH fluid flooding an outdoor area. As soon as the demo is started, a flood occurs and interacts with a stack of rigid bodies. Switch from dark water to clear water, to oil, or just show the real nature of fluids: spheres.

New Updates to 1.0.1.3:

Updates in this release:

1. Allocate only 64MB of VRAM heap instead of 128MB
2. Adjusted text output to not conflict with the PhysX Visual Indicator
3. Added option to toggle the display of all text (in screen space) on/off.

If you have never seen this demo before the below video from NVIDIA shows the demo in action.

How To Install Nvidia Dedicated PhysX Graphics Card With ATI Graphics Cards

YouTube user keiki646 has put together a really nice instructional video on how to setup an NVIDIA graphics card as a dedicated PhysX card when using an ATI card as the main renderer. He goes in-depth on how to install the needed drivers and PhysX patch needed to run a setup like this then shows you how to configure the card in Windows and make sure it is working with PhysX FluidMark. Check out the video below and be sure to check out his YouTube page here.

Mafia II Developer Interview Details The PhysX in The Game

PC Games Hardware has done a really nice and in-depth interview with Denby Grace, senior producer at 2k czech, and asked some really interesting questions on physics, engine and cpu perfomance. Denby goes in-depth to talk about how the PC version of Mafia II and people with an Nvidia PhysX capable GPU will be able to take the game to a whole new level that is not possible with the hardware being used on consoles and ATI Cards.

Mafia II is shaping up to be the new PhysX Showcase. To see the PhysX that has been implemented into the game in action be sure to check out the Official Mafia II Nvidia PhysX Trailer.

From the PC Games Hardware Interview with Mafia 2 developer:

PC Games Hardware: Are there any differences between the Console and the PC Version of Mafia 2 as far as technical as well as visual aspects are concerned, for example GPU accelerated PhysX effects?

Denby Grace: You hit the nail on the head. The biggest difference is the GPU enabled physics effects. While on a system without GPU (consoles and ATI cards), the game will have a great PhysX simulation with particles and cloth, however, if you have the extra hardware we are able to push things to a whole new level which has not yet been seen in open world game before. Our destructible environments feature thousands of physical particles which in turn can be affected by individual explosion force fields to make them move. It’s all very impressive and it’s these kinds of improvements that high end PC gamers can expect.

Read the rest of the interview here.

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