S.T.A.L.K.E.R.: Shadow of Chernobyl is one of the most visually dazzling games on the horizon, not to mention one of the most ambitious. Ukrainian developer GSC Game World hopes to deliver the world's first-person action survival game where you play as a scavenger in the exclusion zone surrounding the Chernobyl nuclear reactor, the same one that exploded in 1986. However, S.T.A.L.K.E.R. is set after a second fictitious explosion at the reactor; and the resulting radiation from two meltdowns has had a dramatic effect on the animals and the environment surrounding Chernobyl. Strange, mutant creatures, both animal and humanoid, inhabit the zone, and the game features a realistic ecosystem where they all live. Then there are the rival scavengers also hunting for valuable objects, and they may not take kindly to your presence. Finally, there are anomalies to worry about--places where the fabric of reality is tearing apart and very strange things can happen if you stumble into them. In the latest edition of our designer diaries, project leader Anton Bolshakov shares some more information with us about the game's cutting-edge graphics engine, and the new types of multiplayer gameplay that is in store.

Deathmatch for the Next Generation

By Anton Bolshakov
Project Leader, GSC Game World

Much about the experience of S.T.A.L.K.E.R. is concerned with perfecting reality. In giving the player a believable environment to begin with and then improving that reality to enhance the experience, we have been forced to examine every aspect of our approach. So not only will you find graphical detail and high levels of artificial intelligence, but you will also be subjected to a game that feels and plays "just right." In this diary we will be looking at how the use of technology kick-starts an approach to gameplay.

Let's lay the foundations for this. DirectX 9 is the latest, most powerful graphics technology and it offers an amazing array of visual opportunities to the programmer. Keep in mind that we want S.T.A.L.K.E.R to utilize that technology and take it a little bit further. The X-Ray engine utilized in S.T.A.L.K.E.R. combines indoor and outdoor capabilities that are realized in up to 3 million polygons per frame. DirectX 9 is harnessed to such an extent that it will be well into next year before you start seeing other games reproducing these effects. In addition, we have developed a separate renderer that is capable of showing off fully dynamic lighting and truly soft shadows. Effects such as grain filters, color saturation, and image distortion will make for a truly tactile game--especially when we show off the abilities of DirectX 9 bump-mapping.

These effects will greatly enhance the atmospherics and thereby the gameplay of S.T.A.L.K.E.R. Imagine a scenario in which an underground area, poorly lit by a single torch and a handful of stray light beams, is home to a dangerous monster. Feel the pinpricks of fear travel down your spine as a shadow looms above you. It changes the way you play and it affects your senses.

Here is a summary of S.T.A.L.K.E.R.'s DirectX 9 capabilities:

• S.T.A.L.K.E.R. is capable of more than 2 million fully bump-mapped polygons per frame as well as true per-pixel complex light-material interaction.
• By targeting the latest hardware we have been able to base the engine fully on HDR (High Dynamic Range) lighting to increase the quality by addressing unnatural over- or under-exposed visuals found in traditional renderers.
• Natural render of complex materials with proper light interaction, such as rusted metal, natural flora, glass, skin, and so on. In addition, every pixel (not texel) can have its own material with several coefficients.
• The custom-built dedicated renderer is capable of real-time dynamic lighting, soft (physically correct) shadows cast from every object onto every other object, true per-pixel lighting, physical umbra/penumbra computations, and hundreds of lights per frame--all in real-time.
• Frame buffer postprocessing and Photoshop-like effects.

And so, hopefully, you will see how we feel S.T.A.L.K.E.R. has set itself apart, technologically speaking, from other games. If these are the laws of physics then life itself stands a wonderful chance of being varied and exciting. It is to this life system that we move to next.