Subdividing a shader program

Details Subdividing a shader program Subdividing a shader program

2005-05-23

2009-06-02

Wu, Xiao M (Department: 2628)

Computer graphics processing and selective visual display system

Computer graphic processing system

Plural graphics processors

C345S501000, C345S505000, C345S552000, C345S557000, C345S582000

Reexamination Certificate

active

07542043

ABSTRACT:
Methods and apparatus for subdividing a shader program into regions or “phases” of instructions identifiable by phase identifiers (IDs) inserted into the shader program are provided. The phase IDs may be used to constrain execution of the shader program to prohibit texture fetches in later phases from being executed before a texture fetch in a current phase has completed. Other operations (e.g., math operations) within the current phase, however, may be allowed to execute while waiting for the current phase texture fetch to complete.

REFERENCES:
patent: 5864342 (1999-01-01), Kajiya et al.
patent: 5945997 (1999-08-01), Zhao et al.
patent: 6326964 (2001-12-01), Snyder et al.
patent: 6532013 (2003-03-01), Papakipos et al.
patent: 2004/0012596 (2004-01-01), Allen et al.

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