3D Technologies - The Charisma Engine - The Charisma Engine is Radeon 7500’s transform, clipping and lighting engine (also known as a geometry engine).  The Charisma Engine will allow the Radeon  7500 to perform the complex transformations, clipping and lighting calculations demanded by the latest 3D games.  As well, the Radeon  7500 supports such DirectX 8.0 features as Keyframe Interpolation and 4-Matrix Vertex Skinning bringing 3D characters to a new visual level of realism.

The Pixel Tapestry Architecture - The Pixel Tapestry Architecture is essentially the Radeon 7500’s powerful rendering engine. Radeon 7500 is one of the only graphic cards in its class capable of processing up to three independent texture units in each rendering pipeline. As a result, the application of up to three textures per pipeline allows for increased realism to 3D characters and environments while maintaining a high performance level.

The diagram below shows how objects can be rendered more realistically with the application of multiple textures.

Furthermore, advanced rendering/texturing technologies are supported with the Pixel Tapestry Architecture.  The Radeon  7500 supports 3 types of bump mapping (Emboss, Dot Product 3, and Environment Bump Mapping) and 3 types of environment mapping (spherical, dual-paraboloid, and cubic environment mapping).  The result is that the Radeon  7500 can achieve the rendering of incredibly authentic-looking 3D characters and environments.