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reference-look-calibration

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UpdatedApril 30, 2026 at 09:53

Calibrate Blender materials, lighting, camera crop, emission/glow, color management, and aura/HUD styling against supplied original/reference images using measurable color, brightness, saturation, bbox, and mask statistics. Use when a product must match the lighting/look of a source image or when audits say the product is too bright, desaturated, wrong hue, wrong glow, or wrong silhouette extent.

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RobLe3

RobLe3/cc-blender-skill

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Web and Digital Interface DesignersComputer and Mathematical Occupations·SOC 15-1255

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SKILL.md

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name	reference-look-calibration
description	Calibrate Blender materials, lighting, camera crop, emission/glow, color management, and aura/HUD styling against supplied original/reference images using measurable color, brightness, saturation, bbox, and mask statistics. Use when a product must match the lighting/look of a source image or when audits say the product is too bright, desaturated, wrong hue, wrong glow, or wrong silhouette extent.
when_to_use	Reference-based look-dev, lighting/material/color calibration, original-image visual matching, glow/aura/HUD matching, HSV/brightness/mask fit reports, final look pass after geometry and UV are locked.
allowed-tools	Read Bash Glob Grep mcp__blender__execute_blender_code mcp__blender__get_scene_info mcp__blender__get_object_info

Reference Look Calibration

This skill handles the final visual match after geometry and UVs are locked. It must not compensate for wrong shape, wrong UVs, or wrong camera framing.

Inputs

accepted geometry / UV fit reports;
reference/original image(s);
product preview render(s);
optional mask overlays and multiview fit reports.

Metrics

Use scripts/look_fit_report.py to compare:

object/bright-mask IoU and bbox extent;
configured hue-band mask IoU for glow/accent assets;
mean/std HSV and BGR under object mask;
brightness p95 / mean;
saturation mean;
hue drift.

Calibration order

Camera crop / orthographic scale — object extent must match before color tuning.
World/background darkness.
Base material hue/value/saturation.
Emission strength and glow color.
Aura/HUD ring color and thickness.
Color management / exposure / gamma.
Final render overlay and metrics.

Hard rules

Do not tune lighting before geometry/UV fit gates pass.
Do not change accent/glow hue away from the source reference unless the user explicitly asks.
Do not hide mismatched geometry with bloom, fog, or overexposure.
Write look metrics before and after calibration.

Handoff

Consumes validation/multiview_fit_report*.json and product previews. Produces validation/look_fit_report.json, look overlays, and updated material/light/render settings.

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name	reference-look-calibration
description	Calibrate Blender materials, lighting, camera crop, emission/glow, color management, and aura/HUD styling against supplied original/reference images using measurable color, brightness, saturation, bbox, and mask statistics. Use when a product must match the lighting/look of a source image or when audits say the product is too bright, desaturated, wrong hue, wrong glow, or wrong silhouette extent.
when_to_use	Reference-based look-dev, lighting/material/color calibration, original-image visual matching, glow/aura/HUD matching, HSV/brightness/mask fit reports, final look pass after geometry and UV are locked.
allowed-tools	Read Bash Glob Grep mcp__blender__execute_blender_code mcp__blender__get_scene_info mcp__blender__get_object_info

Reference Look Calibration

This skill handles the final visual match after geometry and UVs are locked. It must not compensate for wrong shape, wrong UVs, or wrong camera framing.

Inputs

accepted geometry / UV fit reports;
reference/original image(s);
product preview render(s);
optional mask overlays and multiview fit reports.

Metrics

Use scripts/look_fit_report.py to compare:

object/bright-mask IoU and bbox extent;
configured hue-band mask IoU for glow/accent assets;
mean/std HSV and BGR under object mask;
brightness p95 / mean;
saturation mean;
hue drift.

Calibration order

Camera crop / orthographic scale — object extent must match before color tuning.
World/background darkness.
Base material hue/value/saturation.
Emission strength and glow color.
Aura/HUD ring color and thickness.
Color management / exposure / gamma.
Final render overlay and metrics.

Hard rules

Do not tune lighting before geometry/UV fit gates pass.
Do not change accent/glow hue away from the source reference unless the user explicitly asks.
Do not hide mismatched geometry with bloom, fog, or overexposure.
Write look metrics before and after calibration.

Handoff

Consumes validation/multiview_fit_report*.json and product previews. Produces validation/look_fit_report.json, look overlays, and updated material/light/render settings.