Dashboard
Alpha Compositing: Edge Halos, Premultiplication and EXR Emission

Alpha Compositing: Edge Halos, Premultiplication and EXR Emission

Choose one answer. All questions are included, with explanations after checking. No time limit. Training target: 23/28. Diagnose RGBA interchange through explicit straight and premultiplied contracts, source-over arithmetic, filtering, color operations, HDR values and OpenEXR zero-alpha emission. Numerical scenarios state their encoding and assumptions. This thematic test excludes deep compositing, key extraction, complete color management and application certification. Sources: https://openexr.com/en/latest/TechnicalIntroduction.html https://openexr.com/en/latest/SceneLinear.html https://www.w3.org/TR/2024/CRD-compositing-1-20240321/ https://helpx.adobe.com/after-effects/desktop/work-with-footage-items/import-and-interpret-footage-items/importing-interpreting-footage-items.html https://openexr.com/en/latest/test_images/index.html
1 of 28
A resizing kernel averages two samples with equal weights. Straight linear samples are opaque red RGB (1, 0, 0), alpha 1, and transparent blue RGB (0, 0, 1), alpha 0. Which workflow yields a half-covered red sample without blue contamination?