Important DirectX features now shipping with UDK include:
- Tessellation and displacement;
- Geometry shaders;
- Multisampled textures; and
- Shader Model 5.
High-end rendering features include:
- Image-based reflections that allow surfaces of any shape to reflect an approximate version of scenes, with varying glossiness across surfaces, anisotropic HDR highlights and anti-aliasing;
- Subsurface scattering (SSS) that simulates the light that scatters inside semi-translucent materials, making character skin come alive;
- Anti-aliased masked materials that super sample the edges of masked and alpha-tested materials, making character hair more look realistic than ever before;
- Deferred rendering with MSAA support;
- Bokeh depth of field providing close to film-quality DOF, with artist-controllable Bokeh; and
- High-quality dynamic shadows from many lights on the environment, such as shadows for point lights and other light sources.
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