Megaprims are prims that are larger than you can create yourself in the Second Life viewer. Linden Lab no longer allows their creation, so you can not request new, custom sizes, but they do allow the use of existing megaprims. There are a number of collections available, and this collection is one of the largest and best organized.
Use them responsibly. Encroaching on your neighbor's land or blocking access or views can get you abuse reported. Also note that some estate owners and landlords may have restrictions on the use of megaprims.
Almost all the shapes in this collection are basic boxes. You do not need to store other shapes in your inventory because you can turn the boxes into any other prim shape. You can, for example, take a box and turn it into a sphere.
You can path cut, hollow, taper, etc, but you can not resize these prims.
This collection contains the following packages.
Box shapes come in a large range of thicknesses, from very thin for use as panels and walls to very thick (tall, actually).
There are both square and rectangular cross-sections included. The square ones contain two sets of prims: one with a square X-Y cross section and Z of varying heights, and one with a square Y-Z cross section and X of varying widths. For example, the 11 x 11 package contains a set of (11 x 11 x N) and a set of (N x 11 x 11) prims. The latter are useful for rings, tubes, toruses and spheres, which are rotated 90 degrees compared to boxes and cylinders.
The box shapes are named according to their constant dimensions. For example, the 15 x 20 package contains 15m x 20m prims of varying thicknesses, from .01m to 64m. Most packages have prims of the following thicknesses:
0.01m, 0.05m, 0.1m, 0.2m, 0.25m, 0.5m, 0.75m, 1m, 1.5m, 2m, 2.5m, 3m, 4m, 5m, 7.5m, 10m, 12m, 15m, 16m, 20m, 25m, 30m, 32m, 40m, 48m, 50m, 64m
Some packages have additional dimensions included.
Box shapes, square:
11 x 11 (43 prims)
12 x 12 (43 prims)
13 x 13 (45 prims)
14 x 14 (45 prims)
15 x 15 (44 prims)
16 x 16 (47 prims)
20 x 20 (46 prims)
25 x 25 (47 prims)
30 x 30 (48 prims)
32 x 32 (49 prims)
40 x 40 (50 prims)
48 x 48 (51 prims)
50 x 50 (52 prims)
64 x 64 (53 prims)
Box shapes, rectangular, 3:4 ratio:
9 x 12 (34 prims)
12 x 16 (29 prims)
15 x 20 (27 prims)
30 x 40 (27 prims)
45 x 60 (29 prims)
48 x 64 (28 prims)
Box shapes, rectangular, 2:3 ratio:
8 x 12 (28 prims)
10 x 15 (27 prims)
12 x 18 (31 prims)
15 x 22.5 (28 prims)
16 x 24 (29 prims)
20 x 30 (27 prims)
24 x 36 (30 prims)
30 x 45 (27 prims)
32 x 48 (30 prims)
40 x 60 (27 prims)
Columns have a small cross-section compared to their length and are used for rails, beams, poles, and...well...columns!
Each of the column packages contain the following heights for each cross-section listed:
12m, 15m, 16m, 20m, 25m, 30m, 32m, 40m, 48m, 50m, 64m
Columns, Rectangular, Heavy (132 prims)
3:4 ratio cross sections
0.9 x 1.2
1.2 x 1.6
1.5 x 2
1.8 x 2.4
2:3 ratio cross sections
0.9 x 1.35
1 x 1.5
1.1 x 1.65
1.2 x 1.8
1.3 x 1.95
1.4 x 2.1
1.5 x 2.25
1.6 x 2.4
Columns, Rectangular, Medium (132 prims)
3:4 ratio cross sections
0.6 x 0.8
0.66 x 0.88
0.75 x 1
2:3 ratio cross sections
0.45 x 0.675
0.5 x 0.75
0.55 x 0.825
0.6 x 0.9
0.65 x 0.975
0.66 x 0.99
0.7 x 1.05
0.75 x 1.125
0.8 x 1.2
Columns, Rectangular, Thin (132 prims)
3:4 ratio cross sections
0.18 x 0.24
0.21 x 0.28
0.24 x 0.32
0.27 x 0.36
0.3 x 0.4
0.33 x 0.44
0.45 x 0.6
2:3 ratio cross sections
0.2 x 0.3
0.25 x 0.375
0.3 x 0.45
0.35 x 0.525
0.4 x 0.6
Columns, Rectangular, Very Thin (132 prims)
3:4 ratio cross sections
0.09 x 0.12
0.12 x 0.16
0.15 x 0.2
2:3 ratio cross sections
0.08 x 0.12
0.09 x 0.135
0.1 x 0.15
0.11 x 0.165
0.12 x 0.18
0.13 x 0.195
0.14 x 0.21
0.15 x 0.225
0.16 x 0.24
Columns, Square, Heavy (88 prims)
1.1 x 1.1
1.2 x 1.2
1.3 x 1.3
1.4 x 1.4
1.5 x 1.5
1.6 x 1.6
1.75 x 1.75
2 x 2
Columns, Square, Medium (88 prims)
0.55 x 0.55
0.6 x 0.6
0.65 x 0.65
0.7 x 0.7
0.75 x 0.75
0.8 x 0.8
0.9 x 0.9
1 x 1
Columns, Square, Thin (77 prims)
0.2 x 0.2
0.25 x 0.25
0.3 x 0.3
0.35 x 0.35
0.4 x 0.4
0.45 x 0.45
0.5 x 0.5
Columns, Square, Very Thin (99 prims)
0.08 x 0.08
0.09 x 0.09
0.1 x 0.1
0.11 x 0.11
0.12 x 0.12
0.13 x 0.13
0.14 x 0.14
0.15 x 0.15
0.16 x 0.16
Thin panels are 0.01m thick and come in lengths from 11m to 64m and widths from 0.75m to 10m. All of the following lengths are included:
11m, 12m, 13m, 14m, 15m, 16m, 17m, 18m, 20m, 22m, 25m, 30m, 32m, 35m, 40m, 45m, 48m, 50m, 55m, 60m, 64m
and all of the following widths are included:
0.75m, 0.8m, 0.9m, 1m, 1.1m, 1.2m, 1.3m, 1.4m, 1.5m, 1.6m, 1.7m, 1.8m, 1.9m, 2m, 2.2m, 2.4m, 2.5m, 2.6m, 2.8m, 3m, 3.25m, 3.5m, 3.75m, 4m, 4.25m, 4.5m, 4.75m, 5m, 5.5m, 6m, 6.5m, 7m, 7.5m, 8m, 9m, 10m
That's 21 lengths and 36 widths for a total of 756 prims, grouped by widths:
Thin Panels 0.75m through 1.1m (105 prims)
Thin Panels 1.2m through 1.6m (105 prims)
Thin Panels 1.7m through 2.2m (105 prims)
Thin Panels 2.4m through 3m (105 prims)
Thin Panels 3.25m through 4.25m (105 prims)
Thin Panels 4.5m through 6m (105 prims)
Thin Panels 6.5m through 10m (126 prims)
This package contains large panels of thickness 0.01m and 0.5m in the following sizes:
60 x 60
64 x 64
75 x 75
96 x 96
100 x 100
128 x 128
256 x 256
You can turn boxes into any of the round shapes, so this collection doesn't contain many. Here are the few that I've created. A small collection of cylinders, spheres and toruses.
The Vengeance Megaprim Collection was created by Anya Ristow. Sorry, new sizes can no longer be created.