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Practical Physically-Based Shading in Film and Game Production

Learn about the importance of physically-based shading, the physics and math behind it, and practical techniques used in film and game production. Calibrate lighting and materials, explore advanced shading models, and understand reflection design. Join the course now or access the course page for more information.

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Practical Physically-Based Shading in Film and Game Production

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  1. Practical Physically-Based Shading in Film and Game Production

  2. Notes and slides now/soon! Course Page bit.ly/s12shaders

  3. 09:00 Intro: The Importance of Physically-Based Shading(Hill)09:05 Background: Physics and Math of Shading (Hoffman)09:30 Calibrating Lighting and Materials in Far Cry 3(McAuley)10:00 Beyond a Simple Physically-Based Blinn-Phong Model in Real-Time(Gotanda)10:30 Break10:45 Physical Production Shaders with OSL(Martinez)11:15 Physically-Based Shading at Disney(Burley)11:45 Reflection Model Design for WALL-E and Up(Smits) Schedule

  4. The Importance of Physically-Based Shading

  5. Physically-Based vs Photo Realism “Photo-realistic rendering places emphasis on the appearance of its output rather than the techniques used to derive it. Anything goes, basically, as long as the final image looks nice.” - Greg Ward http://radsite.lbl.gov/radiance/refer/Notes/rendering_note.html

  6. Artists are the bottleneck Avoid: 100s of sliders Unintuitive, interconnectedvalues Complex shaders, passes Aim for: Consistency of materials “Works out of the box” Mounting Complexity

  7. Energy conservation: Physically-Based Shading 101 Glossiness

  8. Energy conservation: Avoids gloss-reflectance dependency Physically-Based Shading 101 Glossiness

  9. Input data Calibrated textures Artist guidelines Physical values Lights Material properties Architecture Shading language Renderer Bottom-line: less guesswork It’s a Framework

  10. Easier to breakdown production problems “Why is my material too dark?” Artists can self-diagnose Missing effects can be reasoned about My hope in the future: “I think you screwed up the energyconservation of the Ashikhmin-Shirleymodel. Take a look at my simpletest case.” Language  understanding It’s a Common Language

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