Mark Leone Email & Phone Number

Santa Clara, Ca, Us

Miramar, Wellington, Nz

• Led development on the Manuka renderer, which employs a novel architecture that permits very high quality shading without sacrificing fast path tracing.• Head of Rendering department, responsible for project management, stakeholderengagement, long-term planning, and production support management.• Our team contributed to over 30 movies at Weta Digital, including War for the Planet of the Apes, which was nominated for the Academy Award for Best Visual Effects.• Manuka is the core technology behind the Avatar: Flight of Passage attraction at Walt Disney World.• Transactions on Graphics paper: Manuka: A Batch-Shading Architecture for Spectral Path Tracing in Movie Production.

Miramar, Wellington, Nz

• Developed the Manuka shading system, including an advanced compiler that generates native code from RSL using a unique batch-oriented code generator that ensures high texture and memory locality.• Built a RenderMan-compliant front end for the renderer, including RIB parser, rendering and plugin APIs, and hierarchical graphics state.• Shared leadership responsibilities, including project management.

Santa Clara, California, Us

• Led development of SLX, the shading language for native rendering on Intel’s Larrabee platform.• Implemented major compiler components, including parser, typechecker, and code generator.• Leveraged LLVM compiler toolkit for analysis and optimization.• Led a small compiler engineering team using Agile methodologies. Defined milestones, managed estimation and sprint planning, tracked bugs and feature requests, and led testing and documentation efforts.

Emeryville, California, Us

• Lead developer of RenderMan shading system.– Developed advanced shading language features, including shader objects and co-shaders.– Redesigned shading system for multi-threaded execution.– Achieved significant performance improvements by tuning for locality.– Extensively refactored a large 15-year-old code base.– In its heyday, this system was employed in the production of over 140 movies by numerous studios.• Developed next-generation shading language for Grail renderer.– Designed object-oriented shading framework with inheritance, virtual methods, etc.– Implemented compiler front-end and intermediate infrastructure.– Developed various program analyses and optimizations.

• Developed compiler and run-time system for AI-driven, personality-rich animated characters• Language features: fine-grained multithreading, RETE-based production system, backtracking, execution lookahead (for animation blending).

Bloomington, Indiana, Us

NSF Grant CCR-97-11269, A Staged Compiler Architecture for Dynamic Program Optimization, with R. Kent Dybvig.

Pasadena, Ca, Us

I built ground support software for the Mars Observer spacecraft, including a novel testing framework (SITS).

Ms, Computer Science

Bs, Computer Science