Visual evidence and condition checks

ManYue: Read shadows in multi-light scenes before judging consistency

Distinguish cast shadows, shaded surfaces and expressive black shapes while recording candidate lights and limits.

English translation of the Chinese original, translated on . Original publication dates, attribution, code and version notes are retained.

When a panel contains a streetlamp, window light and a torch, dark shapes pointing in different directions need not be contradictory. Comics may also exaggerate lighting to organize a composition. Build a shadow-evidence record during ordinary reading: identify dark-shape types and candidate sources before discussing narrative use. Keep annotations in external notes; this assumes no ray tracing, physics validation or automatic angle measurement in ManYue.

Choose a scene with visible receiving surfaces

Choose a short scene showing ground beneath a person, a wall or a tabletop, preferably with at least one depicted luminous object and a reasonably complete cast shadow. Record work, edition, chapter, page position and panel number, keeping only observation material you may use. Without a suitable work, draw a lamp, cup and window as a practice sample, explicitly not a lighting calculation. Do not use a black silhouette with no receiving-surface boundary as the sole evidence. It may support compositional analysis, but not a direct judgement about which plane receives a shadow.

Separate three types of dark region

On the first pass, separate shadows cast onto another surface, an object’s own shaded side and unconfirmed expressive black shapes. A dark side of clothing is not a ground shadow, and a line beneath an eye need not correspond to a separate light. For each region, record outline, receiving surface, contact with the object and extension beyond the panel. Preserve unknowns instead of forcing a classification to complete the table. Zoom can clarify edges, but a screentone difference is not automatically a second shadow, and compressed screenshots cannot establish subtle lighting in the original.

List candidate sources and their evidence

On the second pass, list candidate sources: a visible bulb, an open bright window, a character’s torch or an off-panel lamp mentioned in dialogue. Distinguish directly visible, supported by adjacent panels and guessed solely from a shadow; not every bright sky region is the sun. Multiple sources may differ in brightness, colour and occlusion. A visible lamp does not prove it reaches every object at that moment. Separate a glowing decoration from evidence that it illuminates its surroundings, checking whether it is blocked, off or pointed elsewhere. Without a source position, retain several candidates rather than inferring one precise location.

Record directions against surfaces and contact points

For each reasonably clear cast shadow, state the contact point it extends from, its page direction and whether it falls on ground or wall. A line sloping upward on the page does not establish a real-world uphill surface. Do not judge screen angles across differently foreshortened planes as though they were directly comparable. If a shadow crosses floor and wall, record the bend and wall corner separately. A hand-drawn arrow expresses your described trend, not a measured light bearing. If the contact point is hidden, record that occlusion instead of inventing a precise straight extension. This keeps the record understandable after a viewpoint change.

Control object and viewpoint when comparing panels

Choose the same object’s shadow in two neighbouring panels. Before comparing shape, check movement of the person, movement of a light and changes in viewpoint. Lifting off the ground, turning or approaching a wall can change a shadow without a time jump. With two lamps, record whether both shadows are visible; if one is absent, first consider cropping, occlusion and simplified drawing. Without adjacent evidence, limit discussion to the current panel. Comics may omit secondary shadows for clarity, so an undrawn shadow does not establish that the story world contains only one source.

Separate expressive effects from physical inferences

After observation, use a separate column for reading effects: a dark shape surrounding a person, a bright doorway guiding attention or a shadow appearing before its owner. These can explain suspense but do not establish precise source positions. If a dark shape seems inconsistent with ordinary space, first describe exaggeration or uncertainty rather than diagnosing the artist’s knowledge of lighting. You may raise a consistency question while identifying the fuller background, continuous panels or production information needed to resolve it. Keeping the columns separate prevents a preferred narrative interpretation from becoming the only spatial fact.

Narrow the claim when evidence is ambiguous

If the outline is unclear, return to the whole panel and check whether an adjacent border, dialogue box or motion line was included in the shadow. For an unusually dark page, record display conditions and compare the original in a trusted viewer if possible. Do not alter brightness and treat the processed result as original evidence. If two readings remain possible, list support and missing conditions for each. Do not invent an unseen lamp or second person merely to force an answer. Inconclusive is a valid result when limits are stated, and is more reliable than an absolute claim that the lighting is wrong.

Recheck the evidence record after returning

Leave the reader and return, using position and panel number to locate the same contact point, candidate light and dark shape. Check that the notes independently identify them. Summarize observed facts, plausible explanations and unresolved questions separately, retaining references for page and scene directions. If the observations remain understandable after removing the interpretation column, evidence has not been swallowed by opinion. This exercise produces no precise lighting values and no physics verdict for the whole work. It supports a careful explanation of this passage and the judgements the evidence cannot yet support.

ManYue: Read mirror reflections without confusing page and scene directions; ManYue emotional backgrounds: distinguish visual metaphor from story setting.

Checked on November 7, 2026: Apple public version information lists ManYue 2.0.4, requiring iOS / iPadOS 15.0 or later. Feature scope follows the official App Store description and the installed version. This article provides reading and checking methods you can perform; it does not claim step-by-step physical-device or private-server testing. Manual records, external tools and actually visible controls are identified separately, and personal analysis or code observations are not presented as verified automatic capabilities.