Extra Half-Brite
E736622
Extra Half-Brite is a special Amiga display mode that allows 64-color graphics by using an additional bitplane to show dimmed versions of 32 base colors.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Extra Half-Brite canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T8472463 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Extra Half-Brite Context triple: [Original Amiga chipset, supportsMode, Extra Half-Brite]
-
A.
Brighten
Brighten is a solo studio album by Alice in Chains guitarist and vocalist Jerry Cantrell, showcasing his distinctive blend of grunge, hard rock, and melodic songwriting outside the band context.
-
B.
Red & Black Light
Red & Black Light is a genre-blending jazz and electronic album by trumpeter Ibrahim Maalouf that explores modern, groove-driven soundscapes.
-
C.
L&M Lights
L&M Lights is a lighter, lower-tar and nicotine variant of the L&M cigarette brand.
-
D.
Neon Light
"Neon Light" is a country song by American singer Blake Shelton, released as a single from his 2014 album "Bringing Back the Sunshine."
-
E.
Light of Lights
Light of Lights is a central mystical concept in Islamic philosophy and Sufism, especially in al-Ghazali’s Mishkat al-Anwar, denoting the ultimate divine source from which all other lights and realities emanate.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Extra Half-Brite Target entity description: Extra Half-Brite is a special Amiga display mode that allows 64-color graphics by using an additional bitplane to show dimmed versions of 32 base colors.
-
A.
Brighten
Brighten is a solo studio album by Alice in Chains guitarist and vocalist Jerry Cantrell, showcasing his distinctive blend of grunge, hard rock, and melodic songwriting outside the band context.
-
B.
Red & Black Light
Red & Black Light is a genre-blending jazz and electronic album by trumpeter Ibrahim Maalouf that explores modern, groove-driven soundscapes.
-
C.
L&M Lights
L&M Lights is a lighter, lower-tar and nicotine variant of the L&M cigarette brand.
-
D.
Neon Light
"Neon Light" is a country song by American singer Blake Shelton, released as a single from his 2014 album "Bringing Back the Sunshine."
-
E.
Light of Lights
Light of Lights is a central mystical concept in Islamic philosophy and Sufism, especially in al-Ghazali’s Mishkat al-Anwar, denoting the ultimate divine source from which all other lights and realities emanate.
- F. None of above. chosen
Statements (41)
| Predicate | Object |
|---|---|
| instanceOf |
Amiga display mode
ⓘ
computer graphics display mode ⓘ |
| advantage |
allows shading and lighting effects via half-bright colors
ⓘ
doubles apparent color count with minimal memory increase ⓘ |
| alsoKnownAs |
EHB
ⓘ
Extra-Halfbrite mode ⓘ |
| baseColorCount | 32 ⓘ |
| bitplaneCount | 6 ⓘ |
| category |
Amiga graphics technology
ⓘ
bitplane graphics mode ⓘ |
| colorDepth | 6-bit RGB equivalent ⓘ |
| colorModel | indexed color ⓘ |
| colorSelection | 32 freely selectable base palette entries ⓘ |
| derivedColorMechanism | hardware halves RGB values when extra bitplane is set ⓘ |
| documentation | described in Amiga Hardware Reference Manual ⓘ |
| era | late 1980s home computer graphics ⓘ |
| extraBitplanesUsedFor | half-brightness flag ⓘ |
| halfBrightColorCount | 32 ⓘ |
| halfBrightColorsDerivedFrom | 32 base colors ⓘ |
| halfBrightComputation | performed in hardware, not in software ⓘ |
| halfBrightIntensity | approximately 50% of base color intensity ⓘ |
| hardwareSupport |
ECS
ⓘ
OCS ⓘ |
| implementedBy | Amiga Agnus and Denise custom chips ⓘ |
| introducedWith | original Amiga 1000 era chipsets ⓘ |
| memoryCostComparedTo32Color | requires one additional bitplane ⓘ |
| paletteLimit | 32 independent color registers ⓘ |
| paletteSource | Amiga custom chipset color registers ⓘ |
| platform |
Commodore Amiga
ⓘ
linked to:
Amiga
|
| relatedMode |
HAM (Hold-And-Modify)
ⓘ
linked to:
Hold-And-Modify
standard 32-color Amiga mode ⓘ |
| renderingCharacteristic | half-bright colors always tied to corresponding base palette entries ⓘ |
| requires | 6th bitplane set as extra-halfbrite plane ⓘ |
| supports | up to 64 simultaneous on-screen colors without HAM ⓘ |
| totalColorCount | 64 ⓘ |
| typicalUse |
demos
ⓘ
games ⓘ graphics applications ⓘ |
| usedIn |
Amiga demo scene productions
ⓘ
Amiga games with detailed backgrounds ⓘ |
| usesBitplanes | yes ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Extra Half-Brite Description of subject: Extra Half-Brite is a special Amiga display mode that allows 64-color graphics by using an additional bitplane to show dimmed versions of 32 base colors.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
Original Amiga chipset (OCS)