BVT Avatar Stencil Examples — Blender / Unity Parity Matrix

ID	Avatar use case	Writer / reader	Blender example	Unity example	Blender configuration	Unity configuration	Mapping	Notes
M01	Depth-tested reveal. Hide or reveal hair. Create X-ray vision. Hide or change an outfit.	Writer: colorless moving plane Reader: Hair1 and Hair+ Unaffected control: Hair2	Mask OFF / Mask ON reveal	Mask OFF / Mask ON reveal Synchronized Blender / Unity	Simplified `[0,0,0,1,1,0,1]` Advanced `Outside / LEqual / LEqual` `Writer Color Output OFF`	Colorless plane writer q2451: Always/Replace, LEqual, ZWrite Off, Cull Off, ColorMask 0. Hair1 and Hair+ readers q2452: NotEqual/Keep, LEqual, ZWrite On, Cull Off. Hair2: ordinary MToon pass.	The colorless, depthless plane establishes the allocated shared reference without publishing visible color or depth. Hair1 and Hair+ display outside the writer stencil. Equivalent relationships that share one writer and presentation are coalesced into one writer pass with both readers so they cannot compete for different stencil references.	Control: mask disabled. Writer Color OFF suppresses color without disabling stencil. Alpha-zero material fragments are not a substitute.
M02	Facial features through occluders. Show eyes and brows through hair. Reveal emotion with a moving plane. Keep a face readable through glass.	Writer: original brow, lash, iris, shadow, and highlight materials Reader: Hair1, Hair+, and a compact moving reader plane	Stencil OFF / Stencil ON reveal	Stencil OFF / Stencil ON reveal Synchronized Blender / Unity	Simplified `[1,0,0,1,1,1,1]` Advanced `Outside / LEqual / LEqual`	Reader q2451: Always/Replace, LEqual, ZWrite On. Base writer q2452: NotEqual/Keep, LEqual, ZWrite On; source culling. Reader-qualified overlay q2453: Equal/Keep, Always, ZWrite On, Cull Back. Native material rendering supplies lighting and received shadows; only the base casts shadows.	Show Through combines ordinary-depth outside-reader pixels with an Always-depth pass constrained to reader pixels. Equivalent reader sets and presentation settings share one multi-writer stencil plan.	Control: stencil disabled. Reader-qualified show-through retains ordinary depth outside the reader. Overlay back-face culling is not a general nearest-surface solution for open or concave writers.
M03	Face-only hair shadow. Project an anime hair shadow onto the face only.	Writer: hair-shadow volume or decal Reader: face skin	Unclipped shadow / Face-clipped shadow reveal	Unclipped shadow / Face-clipped shadow reveal Synchronized Blender / Unity	Simplified `[0,1,0,1,1,1,1]` Advanced `Outside / LEqual / LEqual`	Face reader mask: Always/Replace, LEqual, ZWrite On. Hair-shadow writer q2452: Equal/Keep, LEqual, ZWrite On, Cull Off in the current imported stencil variant.	Inside-only uses Comp Equal against the reader-authored stencil.	Control: unclipped shadow. The decal is constrained to face pixels; this is a stylized shadow decal, not a cast-shadow feature.
M04	Animated lens-clipped visor HUD. Reveal a pulsing reticle and scan line behind a fixed opaque lens. Keep oversized HUD geometry out of the background and hair-covered lens areas.	Writer: Animated HUD Reader: Opaque curved visor lens Occluders: Hair and head	Synchronized OFF / ON Animated HUD — stencil ON	Synchronized OFF / ON Animated HUD — stencil ON Blender / Unity synchronized comparison	Simplified `[1,1,0,1,1,1,1]` Advanced `Outside / LEqual / LEqual`	Lens q2451: Always/Replace, LEqual, ZWrite On. HUD q2452: Equal/Keep, Always, ZWrite On. Shared stencil reference; Cull Off and native MToonXT lighting. No secondary overlay.	Inside Only clips the oversized HUD to the lens reader. Show Through makes the HUD visible despite the lens depth. Ignore Occluded Reader Areas keeps hair-covered portions excluded. M02 alone would reveal HUD outside the lens, so it cannot substitute for this combined behavior.	Control: stencil OFF. The lens stays fixed while the HUD pulses, scans and changes color. A companion track supplies animation timing; it is not embedded VRM animation.
M05	Orbiting spirit ribbons. Traveling cyan, gold, and violet ribbons cross in front of the avatar; the configured mask cuts those overlaps away.	Writer: Textured ribbon mesh Reader: All 24 avatar materials	Stencil OFF / Stencil ON reveal	Stencil OFF / Stencil ON reveal Synchronized Blender / Unity	Simplified `[0,0,1,1,1,1,1]` Advanced `Outside / LEqual / LEqual`	Reader mask q2451: Always/Replace, LEqual, depth On. Ribbons q2452: NotEqual/Keep, LEqual, depth On. Imported double-sided ribbon material uses Cull Off.	The floating talisman is behind the front ribbons. Avatar exclusion leaves the talisman eligible to be covered; M06 excludes it too.	Control: stencil OFF. One textured writer excludes avatar pixels while remaining depth-tested against unrelated objects. Curved back-face shading can differ between engines.
M06	Negative-space power-up. Use the same traveling ribbon geometry but preserve both avatar and floating talisman pixels.	Writer: Textured ribbon mesh Reader: Avatar targets plus full-scene coverage	Avatar exclusion / Full-scene exclusion reveal	Avatar exclusion / Full-scene exclusion reveal Synchronized Blender / Unity	Simplified `[1,0,1,1,1,1,1]` Advanced `Outside / LEqual / LEqual`	Retain the colorless full-scene coverage pass excluding the writer. Ribbons q2452: NotEqual/Keep, LEqual, depth On, Cull Off.	Control changes only Show Through to Off, reproducing M05-style avatar exclusion. The talisman is behind the front ribbon, so ordinary depth cannot explain its reveal. No backdrop plane fills the true background.	Control: Show Through OFF (M05). The talisman is also excluded, even behind the ribbons. The colorless scene-coverage pass is required.
M07	Surrounding magical aura. Breathing cyan/violet wisps and drifting embers wrap the silhouette. Compare accumulated translucent energy with self/depth settings.	Writer: One alpha-textured animated aura mesh Reader: Avatar materials	Self/depth ON / Self/depth OFF reveal	Self/depth ON / Self/depth OFF reveal Synchronized Blender / Unity	Simplified `[1,0,0,0,1,0,1]` Advanced `Outside / LEqual / LEqual`	Reader mask q2451: Always/Replace, LEqual, depth On. Aura q2452: NotEqual/Keep, LEqual, depth Off; native reader-local overlay q2453: Equal/Keep, Always, depth Off. Both aura passes Cull Off.	Base alpha 0.42 × soft RGBA texture; curved wisps around the body, not a frontal card. Show Through intentionally lets rear energy tint the reader silhouette. Control changes Self Occlude and Writer Depth to On; depth Off alone is not transparency.	Control: Self Occlude and Writer Depth ON. Preserve source alpha and reader color beneath the aura. The two writer passes use complementary coverage to avoid duplicate blending.
M08	Through-cover X-ray. An anatomical skeleton inside the avatar. Move an unrelated opaque shield across the body: M02 hides the covered bones; M08 keeps them visible.	Writer: Rig-fitted anatomical skeleton Reader: Avatar body/materials Neither: Moving opaque shield	M02 visible-body / M08 through-cover wipe M02 vs M08 — simultaneous side by side	M02 visible-body / M08 through-cover wipe M02 vs M08 — simultaneous side by side Synchronized Blender / Unity	Simplified `[1,0,0,1,0,1,1]` Advanced `Outside / LEqual / LEqual`	Retain hidden-reader colorless coverage: Always/Replace, Always, depth Off. Reader mask q2451: LEqual, depth On. Skeleton q2452: NotEqual/Keep, LEqual; native overlay q2453: Equal/Keep, Always. Both skeleton passes depth On and Cull Back. Shield remains ordinarily opaque.	Only Ignore Occluded Reader Areas changes: M02 On → M08 Off. Both show bones through exposed body; only M08 retains them under the unrelated shield. This is not M04 Inside Only; outside the reader, ordinary writer depth applies.	Control: Ignore Occluded Reader Areas ON (M02). The opaque shield is neither writer nor reader. Full reader coverage authorizes the X-ray without revealing reader color.
M09	Feather-crest flight visor. A teal curved visor carries a moving feather crest and animated amber flight instruments, with a sculpted frame.	Writer: Cyan feather crest Reader: Teal curved visor lens Neither: Late amber HUD and sculpted frame	Writer depth ON / Writer depth OFF reveal	Writer depth ON / Writer depth OFF reveal Synchronized Blender / Unity	Simplified `[0,0,0,1,1,0,1]` Advanced `Outside / LEqual / LEqual`	Crest writer q2451: Always/Replace, LEqual, depth Off. Curved-lens reader q2452: NotEqual/Keep, LEqual, depth On. Both Cull Off. Rear amber HUD q3000, depth Off; opaque frame q2000.	Only Writer Depth changes. Late amber HUD pixels pass through the crest when its depth write is off; the remaining lens still writes depth. Unlike M04, this tests depth ownership rather than inside-lens clipping.	Control: Writer Depth ON. Lens alpha 0.48 and HUD alpha 0.96 remain unchanged. The late HUD reveals writer depth ownership, not lens clipping.
M10	Crystal-iris AR visor. A violet curved visor has a rotating seven-part crystal iris and cyan circular instruments, visually separate from M09's flight crest.	Writer: Violet/gold crystal iris Reader: Violet curved visor lens Neither: Late cyan circular HUD and sculpted frame	Reader depth ON / Reader depth OFF reveal	Reader depth ON / Reader depth OFF reveal Synchronized Blender / Unity	Simplified `[0,0,0,1,1,1,0]` Advanced `Outside / LEqual / LEqual`	Iris writer q2451: Always/Replace, LEqual, depth On. Curved-lens reader q2452: NotEqual/Keep, LEqual, depth Off. Both Cull Off. Rear cyan HUD q3000, depth Off; opaque frame q2000.	Only Reader Depth changes. The visible lens admits the later HUD when reader depth is off, while the crystal iris still writes depth. Not M09's writer-depth effect, and Depth Off does not itself change color alpha.	Control: Reader Depth ON. The lens admits the late HUD while the iris still blocks it. Disabling depth writes does not change alpha or disable depth testing.
A01	Ice-silver character transformation. A feather-edged traveling boundary switches the original character's hair and costume to an ice-blue/silver palette while retaining skin, eyes and source texture detail.	Writer: Feather-edged transformation veil Reader: Ice-silver character copy	Outside comparison / Inside comparison reveal	Outside comparison / Inside comparison reveal Synchronized Blender / Unity	Simplified `[0,0,0,1,1,1,1]` Advanced `Inside / LEqual / LEqual`	Veil writer: Always/Replace, LEqual, depth On. Alternate character readers: Equal/Keep, LEqual, depth On. Both alternate and original-color foundation use BLEND with transparent depth write; retain the source material ordering.	Only Comparison changes. It switches complementary regions of the character recolor, not M03 writer-inside-reader clipping, M05/M06 negative-space ribbons, or M07's surrounding aura. The original-color foundation draws late so it cannot block the behind-body stencil stamp.	Control: Outside comparison. Both character copies use BLEND with transparent depth write; the original-color foundation draws late. This is a palette change, not a wardrobe replacement.
A02	Amber spirit familiar reliquary. A small amber version of the character bobs inside an ornate, dark feather-and-gold reliquary beside the original avatar.	Writer: Amber character familiar Reader: Avatar materials	Writer LEqual / Writer Always reveal	Writer LEqual / Writer Always reveal Synchronized Blender / Unity	Simplified `[0,0,0,1,1,1,1]` Advanced `Outside / Always / LEqual`	Amber projection writer: Always/Replace, ZTest Always, depth On, Cull Off in the active imported stencil variant. Avatar readers: NotEqual/Keep, LEqual, depth On. The opaque reliquary uses ordinary MToon rendering.	Only Writer ZTest changes. The familiar appears through unrelated cover outside the original avatar silhouette; no reader is required to authorize that region. This distinguishes unconditional depth bypass from M02 and M08 body-local X-ray.	Control: Writer LEqual. This single-atlas projection uses sorted faces and a locked camera. Arbitrary-camera self-occlusion is not supported by this setup. Export doubleSided=false; active Unity stencil variant uses Cull Off.
A03	Feather-shutter spirit projection. A larger violet character projection appears through a layered petal screen while an articulated white-and-gold feather shutter cuts it away.	Writer: Articulated feather shutter Reader: Violet character projection	Reader LEqual / Reader Always reveal	Reader LEqual / Reader Always reveal Synchronized Blender / Unity	Simplified `[0,0,0,1,1,1,1]` Advanced `Outside / LEqual / Always`	Feather writer: Always/Replace, LEqual, depth On, Cull Off. Violet projection reader: NotEqual/Keep, ZTest Always, depth On, Cull Off in the active imported stencil variant. The screen remains ordinary opaque geometry.	Only Reader ZTest changes. Reader color bypasses cover while the depth-tested writer retains its stencil cutout. Unlike A02 the visible projection is the reader, not an unconditional writer; unlike M08 this is not hidden-reader silhouette authorization.	Control: Reader LEqual. The camera-locked projection shows reader color through cover while retaining the writer cutout. Export doubleSided=false; active Unity stencil variant uses Cull Off.

Blender / Unity Stencil Matrix

Blender configuration legend