Importance-Directed Geometric Simplification System and Method
OwnerIan Edward Ashdown, Jasen Wright +1inventors
InventorsIan Edward Ashdown, Jasen Wright, Jack Thomas
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Abstract
The present invention relates to the importance-directed geometric simplification of complex mesh-based representations of objects in virtual environments for radiosity-based global illumination simulations. By means of simplification, the time needed to solve the radiosity equation and so generate an accurate physically-based simulation can be markedly reduced. Further, geometric simplification is performed during the global illumination simulation process rather than as a preprocess step.
Claims17
A method for importance directed geometric simplification of a mesh comprising the steps of:
- calculating an importance for each of multiple elements of the mesh;
- determining that a first group of the elements each have an importance greater than an importance limit;
- and
- generating a simplification of the mesh at a location of a second group of elements of the mesh that are not in the first group.
A system for importance directed geometric simplification of a mesh comprising:
- one or more CPU (central processor unit) cores configured to:
- perform a radiosity calculation for a mesh, the radiosity calculation including a calculation of an importance for each of multiple elements of the mesh;
- and
- determine that a first group of the elements each have an importance greater than an importance limit;
- and
- one or more GPU (graphics processor unit) cores configured to:
- generate a simplification of the mesh at a location of a second group of elements of the mesh that are not in the first group.
Dependencies are inferred from the claim text.