Dynamic objects and characters in the world generate high performance shadows which are projected onto world geometry, providing critical lighting cues. This lighting effect truly grounds characters and other dynamic objects in the game world. Dynamic objects and characters in the world pick up bounced light computed during offline radiosity computation. High dynamic range lighting is supported in the Source engine on all DirectX 9 level hardware, unlike most competing engines. All lighting data including light maps, environment maps and dynamic lights in the scene are computed in high dynamic range space for natural lighting. Radiosity is computed using a distributed radiosity solver (vrad) which can be deployed across your local network for rapid iteration on world lighting. Light maps encode directional information so that lighting combines naturally with bump maps, resulting in more accurate lighting of local surface detail, including self-shadowing. World geometry is lit with radiosity lighting stored in light maps or per vertex to provide immersive environments. Use distance-coded alpha masking for infinite resolution texture masking-useful for resolution-independent UI elements or any alpha-tested primitives. Enables antialiasing of alpha-tested primitives such as foliage, fences, and grillwork. Achieve maximum performance on all levels of hardware with automatic management of geometric Level of Detail (LOD). Existing techniques include all manner of sophisticated lighting effects from the non-photorealistic rendering (NPR) style of Team Fortress 2 to the hyper-realistic look of the Half-Life 2 episodes-all in one engine. Use Valve’s existing shader library or augment with your own algorithms. Author shaders for the Direct3D pipeline using up to shader model 3.0. Source’s renderer utilizes advanced processor technologies such as multi-core and SIMD, as well as the latest GPU features via DirectX, to bring your vision to life in vibrant detail. The highest-performing shader-based rendering available to game developers helps you quickly produce even the most complex scenes quickly and efficiently. Source features fast, reliable and flexible technology to render computationally intensive game environments.
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