Work on GRFS:

Character Pipeline:
Character export automation and scripts
Performance tuning,
Streaming settings & LOD system
Swappable parts (heads, gear) and attachments points for weapons, etc.

 

 

 

 

Visual Effects:
Maintaining performance though
Fillrate and overdraw issues,
Setting up skyboxes, profiling particle systems,
Maintaining effects memory and draw-call issues.

 

Performance and Memory Testing:
What happens when you get 16 guys together and all set off granades at once? etc...

 

 

Level Optimization:
Responsable for 4 of the games 10 shipped maps and 1 of the 3 maps that shipped in each DLC pack.
Level work mostly consisted of optimizations for memory and performance.
Getting the level to look great while running at 30fps with a firefight going on, and getting a whole large level to fit into memory and stream performantly was the main concern.

 

 

Some level optimization areas included:
Tech design and advice from start to finish.
Setting streaming; in most cases manually to optimize texture memory with location.
Manually sectoring each level in into different zones depending on visibility & setting distance coefficients.
Unifying and optimizing shaders, reducing object draw count and unifying set pieces to load spatially.

And lots of random stuff, like making the impact decals light correctly with SH, getting alpha issues sorted, etc.