Process-wide, immutable unit primitives for retained GPU rendering.
Retained renderers cache GPU buffers by Geometry identity, so every
CubeGeometry() call becomes a separate vertex/index upload even when the
vertex data is identical. Scale the shared unit primitive through the
node transform instead: a hangar built from SharedPrimitives.unitCube
uploads one cube for all of its walls, pillars, doors and consoles.
The instances are shared and must never be mutated. Geometry arrays are already treated as immutable by the retained adapter; this class simply gives every caller the same instance.
Properties
- hashCode → int
-
The hash code for this object.
no setterinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
Methods
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
toString(
) → String -
A string representation of this object.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited
Static Properties
- unitCube → CubeGeometry
-
1 m cube centered on the origin (24 vertices, 12 triangles).
final
- unitCylinder → CylinderGeometry
-
Cylinder of diameter 1 m and height 1 m along Y, 16 segments.
final
- unitCylinderCoarse → CylinderGeometry
-
Cylinder of diameter 1 m and height 1 m along Y, 8 segments (posts,
torch handles, thin trims where silhouette smoothness is not visible).
final
- unitCylinderFine → CylinderGeometry
-
Cylinder of diameter 1 m and height 1 m along Y, 32 segments: for
large columns, drums and discs seen from arm's length.
final
- unitPlane → PlaneGeometry
-
1 m × 1 m horizontal quad centered on the origin, facing +Y.
final
- unitSphere → SphereGeometry
-
Sphere of diameter 1 m, 16 segments (smooth, ~290 vertices).
final
- unitSphereCoarse → SphereGeometry
-
Sphere of diameter 1 m, 8 segments (coarse, for projectiles and gems).
final
- unitSphereFine → SphereGeometry
-
Sphere of diameter 1 m, 32 segments (~1 100 vertices): for hero objects
larger than ~0.5 m whose silhouette the viewer inspects up close.
final
Static Methods
-
cuboidScale(
double width, double height, double depth) → Vector3 - Convenience scale vector for a cuboid of the given extents.