Straddle groups #86
Replies: 7 comments 11 replies
-
|
Afaik there's nothing in the bsp to say which GridCells each straddle group connects It's worth noting that some maps use the |
Beta Was this translation helpful? Give feedback.
-
|
From limited testing the |
Beta Was this translation helpful? Give feedback.
-
|
Huh, makes sense, tho I wonder how they isolate skyboxes. AFAIK source build separate vis tree around world origin / the first indexed player spawn, then the sky cameras This'll probably come up again when I tackle skybox vis w/ portals in #84 |
Beta Was this translation helpful? Give feedback.
-
Maybe we should look at how Effect & Cause physics works |
Beta Was this translation helpful? Give feedback.
-
|
Straddle group 0 might be just for Primitives & GeoSets contained to one GridCell, idk. |
Beta Was this translation helpful? Give feedback.
-
|
GeoSets indexed by model GridCells use Straddle group 0. My best guess is that as the name implies a geosets which "straddle" accross multiple gridcells share the same straddle group. |
Beta Was this translation helpful? Give feedback.
-
>>> bsp = maps["mp_glitch"]
>>> [i
... for i, gc in enumerate(bsp.CM_GRID_CELLS)
... for gs in bsp.CM_GEO_SETS[gc.first_geo_set:gc.first_geo_set+gc.num_geo_sets]
... for p in bsp.CM_PRIMITIVES[gs.primitive.index:gs.primitive.index+gs.num_primitives]
... if p.type.name == "PROP"][:4]
[559, 559, 559, 560]
>>> bsp.CM_GRID_CELLS[559]
<GridCell (first_geo_set: 74, num_geo_sets: 1)>
>>> bsp.CM_GEO_SETS[74]
GeoSet(
straddle_group=242, num_primitives=4,
primitive=<BitField (type: <PrimitiveType.BRUSH: 0>, index: 80, unique_contents: 6)>)
>>> bsp.CM_PRIMITIVES[80:80+4]
[<Primitive (type: <PrimitiveType.TRICOLL: 64>, index: 223, unique_contents: 6)>,
<Primitive (type: <PrimitiveType.PROP: 96>, index: 29, unique_contents: 6)>,
<Primitive (type: <PrimitiveType.PROP: 96>, index: 906, unique_contents: 6)>,
<Primitive (type: <PrimitiveType.PROP: 96>, index: 905, unique_contents: 6)>]
>>> {bsp.GAME_LUMP.sprp.model_names[bsp.GAME_LUMP.sprp.props[i].model_name] for i in (29, 906, 905)}
{'models/foliage/tree_cherry_blossom_large_01.mdl',
'models/homestead/rock_cluster_basalt_01_wet_sm.mdl'}>>> [i
... for i, gc in enumerate(bsp.CM_GRID_CELLS)
... if 74 in [*range(gc.first_geo_set,gc.first_geo_set+gc.num_geo_sets)]]
[559, 560, 561, 600]
>>> bsp.CM_GEO_SETS[74].straddle_group # 1st geo set w/ props
242
>>> [i
... for i, gc in enumerate(bsp.CM_GRID_CELLS)
... for gs in bsp.CM_GEO_SETS[gc.first_geo_set:gc.first_geo_set+gc.num_geo_sets]
... if gs.straddle_group == 242]
[559, 560, 561, 562,
600, 601, 602, 603, 604,
641, 642, 643, 644, 645,
683, 684, 685, 686,
725, 726, 727, 767, 768]
>>> bsp.CM_GRID_CELLS[601]
<GridCell (first_geo_set: 148, num_geo_sets: 3)>
>>> bsp.CM_GEO_SETS[148:148+3]
[GeoSet(straddle_group=242, num_primitives=4, ..., index: 80, unique_contents: 6), # clone of 74
GeoSet(straddle_group=312, num_primitives=4, ..., index: 100, unique_contents: 6),
GeoSet(straddle_group=506, num_primitives=2, ..., index: 104, unique_contents: 1)]
>>> {gs for gs in bsp.CM_GEO_SETS if gs.straddle_group == 242}
{GeoSet(straddle_group=242, num_primitives=4, primitive=<BitField (type: <PrimitiveType.BRUSH: 0>, index: 80, unique_contents: 6)>)}
|
Beta Was this translation helpful? Give feedback.
-
|
clearly in every single map, there is only 1
|
Beta Was this translation helpful? Give feedback.
-
|
|
Beta Was this translation helpful? Give feedback.
-
|
looking at r2
Idk what kind of algorithm respawn developed to get this combination of YOBBs to create such a tight hull, but it's very cool Also worth noting that |
Beta Was this translation helpful? Give feedback.
-
|
"Graze" seems like a good word for near-hits |
Beta Was this translation helpful? Give feedback.
-
|
looks like really big >>> import bsp_tool
>>> bsp = bsp_tool.load_bsp("E:/Mod/Titanfall2/maps/mp_glitch.bsp")
>>> bsp.grid_cell_primitives(1806)
[(<Primitive (type: <PrimitiveType.BRUSH: 0>, index: 12, unique_contents: 0)>,
Bounds(origin=vec3(-6200.0, -1488.0, 1284.0), negative_cos=-32768, extents=vec3(2009.0, 4033.0, 1276.0), positive_sin=0)),
(<Primitive (type: <PrimitiveType.BRUSH: 0>, index: 285, unique_contents: 0)>,
Bounds(origin=vec3(5816.0, 1744.0, 1284.0), negative_cos=-32768, extents=vec3(2009.0, 4033.0, 1276.0), positive_sin=0)),
(<Primitive (type: <PrimitiveType.BRUSH: 0>, index: 286, unique_contents: 0)>,
Bounds(origin=vec3(2048.0, 4240.0, 1262.0), negative_cos=-32768, extents=vec3(1761.0, 1521.0, 1298.0), positive_sin=0)),
(<Primitive (type: <PrimitiveType.PROP: 96>, index: 16182, unique_contents: 6)>,
Bounds(origin=vec3(-1503.0, -3865.0, 5299.0), negative_cos=-31384, extents=vec3(4060.0, 7604.0, 5489.0), positive_sin=9423)),
...]the 1 prop: >>> bsp.GAME_LUMP.sprp.props[16182]
StaticPropv13(
origin=vec3(0.0, 0.0, 0.0), angles=<MappedArray (y: 0.0, z: 90.0, x: 0.0)>, scale=1.0,
model_name=27, solid_mode=<StaticPropCollision.VPHYSICS: 6>, flags=<StaticPropFlags.NO_DRAW: 4>, skin=0, cubemap=1,
forced_fade_scale=-1.0, lighting_origin=vec3(nan, 34.12068176269531, 16.043363571166992),
cpu_level=<MappedArray (min: -1, max: -1)>, gpu_level=<MappedArray (min: -1, max: -1)>,
diffuse_modulation=<RGBExponent (r: 0, g: 0, b: 0, exponent: 0)>, collision_flags=<MappedArray (add: 0, remove: 0)>)
>>> bsp.GAME_LUMP.sprp.model_names[27]
'models/levels_terrain/mp_glitch/glitch_godrays.mdl' |
Beta Was this translation helpful? Give feedback.
-
|
that |
Beta Was this translation helpful? Give feedback.
-
|
Worth noting that the brush indices jump around a lot I initially thought that brushes were ordered by gridcell, but that was me misreading |
Beta Was this translation helpful? Give feedback.
-
>>> import bsp_tool
>>> bsp = bsp_tool.load_bsp("E:/Mod/Titanfall2/maps/mp_glitch.bsp")
>>> bsp.CM_GRID.count.x * bsp.CM_GRID.count.y
1806
>>> min([gs.first_geo_set for gs in bsp.CM_GRID_CELLS[:1806] if gs.num_geo_sets > 0])
0
>>> max([gs.first_geo_set + gs.num_geo_sets for gs in bsp.CM_GRID_CELLS[:1806] if gs.num_geo_sets > 0])
3246
>>> gridcell_geosets = set()
>>> for grid_cell in bsp.CM_GRID_CELLS[:1806]:
... if grid_cell.num_geo_sets > 0:
... start = grid_cell.first_geo_set
... end = start + grid_cell.num_geo_sets
... gridcell_geosets.update({*range(start, end)})
...
>>> {*range(3246)}.difference(gridcell_geosets)
{3229, 3230, 3231, 3232, 3233, 3234, 3235, 3236, 3237, 3238, 3239, 3240, 3241, 3242, 3243}
>>> bsp.CM_GRID_CELLS[1806:]
[<GridCell (first_geo_set: 3229, num_geo_sets: 15)>] |
Beta Was this translation helpful? Give feedback.
-
|
|
Beta Was this translation helpful? Give feedback.
-
|
notable: >>> {gc.first_geo_set for gc in bsp.CM_GRID_CELLS if gc.num_geo_sets == 0}
{3244, 3245, 3246} |
Beta Was this translation helpful? Give feedback.
-
|
grid cells (+ indices) containing [(gc, i)
for i, gc in enumerate(bsp.CM_GRID_CELLS)
if 432 in [
gs.straddle_group
for gs in bsp.CM_GEO_SETS[gc.first_geo_set:gc.first_geo_set+gc.num_geo_sets]]] |
Beta Was this translation helpful? Give feedback.
-
Trying to figure out what straddle groups are for / do.
Grid Cells
iirc the positions are
GridCells[4]is counted for all of worldspawn, but has no GeoSetsr1/mp_lobbyis a384x384x384box of 6 centered brushesStraddle Groups
0unused?1Brushes[0 & 3](+/- Z)GridCells[0..3]2Brushes[1](+Y)GridCells[2 & 3]3Brushes[2](+X)GridCells[1 & 3]4Brushes[4](-Y)GridCell[0 & 1]5Brushes[5](-X)GridCell[0 & 2]Beta Was this translation helpful? Give feedback.
All reactions