Methods and systems for motion vectors in 3d graphics

A system for rendering 3D graphics, comprising:

• one or more processors and non-transitory memory allocated to form:
• a 3D motion vector module configured to receive a 3D model from a game engine and configured to output a plurality of 1-phase 3D motion vectors (3D MV1s) and a plurality of 0-phase 3D motion vectors (3D MV0s) based on the 3D model, each 3D MV1 comprising a change in a vertical position, a change in a horizontal position, and a change in a depth position of an object at a respective pixel from a current frame to a previous frame, each MV0 comprising a change in a vertical position, a change in a horizontal position, and a change in a depth position of an object at a respective pixel from the previous frame to the current frame;
• and
• a block motion vector module configured to generate a 2.5D block MV1 texture and a 2.5D block MV0 texture from the plurality of 3D MV1s and the plurality of 3D MV0s, respectively, and output the 2.5D block MV1 texture and the 2.5D block MV0 texture for image processing in order to form an image to be displayed on a display, wherein the 2.5D block MV1 texture comprises a plurality of MV1 blocks each formed from a respective subset of the plurality of 3D MV1s, and wherein the 2.5D block MV0 texture comprises a plurality of MV0 blocks each formed from a respective subset of the plurality of 3D MV0s.

A method, comprising:

• generating, for each pixel of one or more objects to be rendered in a current frame, a 1-phase motion vector (MV1) and a 0-phase motion vector (MV0), each MV1 and MV0 having an associated change in depth, to thereby form an MV1 texture and an MV0 texture;
• applying a double-confirm process to each MV0 and each MV1, wherein the double-confirm process includes confirming each associated change in depth;
• correcting each non-double confirmed MV0s and MV1s;
• converting the MV1 texture to a set of MV1 blocks and converting the MV0 texture to a set of MV0 blocks, each MV1 block and each MV0 block having an associated depth value, including identifying, for each pixel block of a plurality of pixel blocks, a distribution of pixel types in that pixel block and converting each pixel block to a respective MV0 block and a respective MV1 based on the distribution of pixel types;
• and
• outputting the set of MV1 blocks and the set of MV0 blocks for image processing.