OBD:AGQG

ONI BINARY DATA AGQC << Other file types >> AGQR AGQG : Gunk Quad General Array switch to XML:AGQG page Overview @ Oni Stuff

Offset	Type	Raw Hex	Value	Description
0x00	res_id	01 49 02 00	585	00585-.AGQG
0x04	lev_id	01 00 00 06	3	level 3
0x08	char[20]	AD DE	dead	unused
0x1C	int32	15 A8 00 00	35349	array size
First element (black outline)
0x00	int32	00 00 00 00	0	PNTA element for 1st vertex
0x04	int32	01 00 00 00	1	PNTA element for 2nd vertex
0x08	int32	02 00 00 00	2	PNTA element for 3rd vertex
0x0C	int32	03 00 00 00	3	PNTA element for 4th vertex
0x10	int32	F5 0F 00 00	4085	TXCA element for 1st vertex
0x14	int32	F3 0F 00 00	4083	TXCA element for 2nd vertex
0x18	int32	F4 0F 00 00	4084	TXCA element for 3rd vertex
0x1C	int32	F6 0F 00 00	4086	TXCA element for 4th vertex
0x20	color	00 00 00 00	0, 0, 0, 0	byte-swapped ARGB color for 1st vertex
0x24	color	00 00 00 00	0, 0, 0, 0	byte-swapped ARGB color for 2nd vertex
0x28	color	02 07 09 00	2, 7, 9, 0	byte-swapped ARGB color for 3rd vertex
0x2C	color	06 15 1E 00	6, 21, 30, 0	byte-swapped ARGB color for 4th vertex
0x30	bitset32	00 00 08 02	0, 0, 8, 2	flags; used values: 0x01 00 00 00 - door frame (invisible quad that uses the TXMP_DOOR_FRAME texture) 0x02 00 00 00 - ghost (pathfinding volume separator, see AKVA etc) 0x04 00 00 00 - stairs up 0x08 00 00 00 - stairs down 0x10 00 00 00 - stairs 0x20 00 00 00 - (runtime only) marks quads as jelloed; never used in file data 0x40 00 00 00 - triangle (see below) 0x80 00 00 00 - transparency (if 0 then alpha is ignored, color is just RGB shading) 0x00 01 00 00 - unused ("draw flash") 0x00 02 00 00 - two-sided 0x00 04 00 00 - unused ("trigger") 0x00 08 00 00 - no collision 0x00 10 00 00 - unused ("flash state") 0x00 20 00 00 - invisible 0x00 40 00 00 - no object collision 0x00 80 00 00 - no character collision 0x00 00 01 00 - no occlusion 0x00 00 02 00 - danger 0x00 00 04 00 - (runtime only) marks quads hidden with env_show; never used in file data 0x00 00 08 00 - vertical collision: slope < 70° 0x00 00 10 00 - horizontal collision: slope > 70° 0x00 00 20 00 - unused, runtime only ("breakable") 0x00 00 40 00 - grid ignore 0x00 00 80 00 - no decal 0x00 00 00 01 - furniture 0x00 00 00 02 - projection plan bit 0, see below 0x00 00 00 04 - projection plan bit 1, see below 0x00 00 00 08 - sound-transparent 0x00 00 00 10 - impassable
0x34	int32	FF FF FF FF	-1	object ID and type to which this quad belongs (see ONOA for details); -1 if it does not belong to an object
Data fields exclusive to the PS2 implementation (4 extra bytes at the end of each AGQG array element)
0x38	int16	00 80	32768 (high bit set)	unknown; always the same?
0x3A	int16	00 80	32768 (high bit set)	unknown; always the same?

Triangles

Many quads are in fact triangles: the last two vertices have the same PNTA and TXCA entries, and the ARGB color is (255, 205, 205, 205) (80% gray, 100% opaque). There is also a flag specifying that.

Ghost, Stairs up, Stairs down

These flags are used for BNV adjacencies, see AKAA. Stairs up/down are used instead of Ghost when the quad is placed at the bottom/top of the stairs. These quads are not visibile. The script variable env_show_ghostgqs is intended to control the visibility of such quads but it requires "debug" level files.

There are a couple of ghost quads that aren't referenced from AKAA. It's likely that those quads are useless.

Door frame

This appears to be another type of "ghost" quad (its visibility is controlled by the same env_show_ghostgqs variable). Sometimes it is used together with the Ghost flag but not always. Only the door frames that also have the Ghost flag are used as adjacencies so it's unclear if the rest of the door frames serve any purpose. In fact it appears that this flag has no effect other than making the quad invisible.

Stairs

This is applied to the invisible ramp quad that covers the stairs. In general this flag is also applied to the visible stairs geometry but there are some exceptions (errors? see level 19 stairs).

No occlusion

This flag tells the octtree raycaster to ignore the quad when doing ray/quad intersections. This is tipically used for small quads that are unlikely to affect the overall environment visibility.

Projection plane flags

These 2 flags can be 00, 01, 10 and 11. That means the values 0,1,2 and 3 which have the following meanings:

• 0 - No projection plane specified. One can be computed if needed. Never used in files, may slow down the game if used.
• 1 - Project quad on XY plane.
• 2 - Project quad on XZ plane.
• 3 - Project quad on YZ plane.

The projection plane is used to determine if a point is in a quad (this point is usually the result of an intersection between a ray and the quad plane).

Grid ignore

Appears to be unused. Its likely purpose is to mark quads that don't count as obstacles in the pathfinding grid.

Danger

Appears to be unused. Its likely purpose is to create danger areas in the pathfinding grids. Usually there's a trigger volume nearby that hurts/kills the character. This quads are always invisible.

Invisible

Invisible quads have a couple of different uses:

• block player access to some parts of the environment
• stairs ramp
• collision geometry (used by some "complex" furniture)
• danger quads (see above)
• some other apparently useless quads

Furniture

Set for all quads that belong to a furniture object. It doesn't appear to be used. It is also redundant since all the furniture quads have an object id.

No decal

Prevents the creation of decals on the quad. Set for door quads because the decals would disappear when the door opens. That's why shooting a door doesn't leave a mark.

ONI BINARY DATA
AGQC << Other file types >> AGQR
AGQG : Gunk Quad General Array
Level file