Patent ID: 11875443
Assignee: IMAGINATION TECHNOLOGIES LIMITED
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A method of rendering a scene formed by primitives in a graphics processing system, the method comprising, for a sequence of primitives:
combining a pipeline fragment shading rate value and a primitive fragment shading rate value for a primitive to produce a combined fragment shading rate value for the primitive;
storing fragment shading rate data representing the combined fragment shading rate value for the primitive and associating vertex data of the primitive with the fragment shading rate data;
determining, for a subsequent primitive, if a combined fragment shading rate value for the subsequent primitive is the same as for the preceding primitive, and
if the combined fragment shading rate value for the subsequent primitive is the same as for the preceding primitive, associating vertex data of the subsequent primitive with the fragment shading rate data that the vertex data of the preceding primitive is associated with, and repeating the determining step for a next subsequent primitive, if there is one; and,
if the combined fragment shading rate value for the subsequent primitive is not the same as for the preceding primitive, storing further fragment shading rate data representing the combined fragment shading rate value for the subsequent primitive and associating vertex data of the subsequent primitive with the further fragment shading rate data; and repeating the determining step for a next subsequent primitive, if there is one.