Skip to main content Module constants Copy item path Source AABB_MARGIN_FRACTION Fraction of shape size used for the AABB movement margin.
(B3_AABB_MARGIN_FRACTION) BODY_NAME_LENGTH Max body name length excluding null terminator. (B3_BODY_NAME_LENGTH) CHILD_MASK Mask for a child index packed into a pair key. (B3_CHILD_MASK) CHILD_POWER Bit width reserved for a child index in the pair key. (B3_CHILD_POWER) CONTACT_MANIFOLD_COUNT_BUCKETS Contact-point buckets for reporting manifold counts per pair.
(B3_CONTACT_MANIFOLD_COUNT_BUCKETS) CONTACT_RECYCLE_ANGULAR_DISTANCE Angular distance threshold for contact recycling (cos² of half-angle).
(B3_CONTACT_RECYCLE_ANGULAR_DISTANCE) GRAPH_COLOR_COUNT Maximum number of colors in the constraint graph. Constraints that cannot
find a color are added to the overflow set. (B3_GRAPH_COLOR_COUNT) MAX_CHILD_SHAPES Maximum number of child shapes. (B3_MAX_CHILD_SHAPES) MAX_MANIFOLD_POINTS The maximum number of contact points between two touching shapes.
(B3_MAX_MANIFOLD_POINTS) MAX_MESH_CONTACT_TRIANGLES Max triangles queried for one mesh contact. (B3_MAX_MESH_CONTACT_TRIANGLES) MAX_POINTS_PER_TRIANGLE Max clip points written per triangle during mesh narrow phase.
(B3_MAX_POINTS_PER_TRIANGLE) MAX_ROTATION Maximum body rotation per time step to prevent numerical issues. (B3_MAX_ROTATION) MAX_SHAPES Maximum number of shapes. (B3_MAX_SHAPES) MAX_SHAPE_CAST_POINTS The maximum number of points to use for shape cast proxies (swept point cloud).
(B3_MAX_SHAPE_CAST_POINTS) MAX_WORKERS Maximum parallel workers. Used for fixed-size arrays and worker-count
clamping. The serial port still stores and clamps to this limit.
(B3_MAX_WORKERS) NULL_NAME Null name id in the name cache. (B3_NULL_NAME) RELAX_ITERATIONS Relaxation iterations per sub-step (bias off). (solver.c: RELAX_ITERATIONS) SHAPE_MASK Mask for a shape index packed into a pair key. (B3_SHAPE_MASK) SHAPE_NAME_LENGTH Max shape name length excluding null terminator. (B3_SHAPE_NAME_LENGTH) SHAPE_POWER Bit width reserved for a shape index in crate::table::shape_pair_key SOLVER_ITERATIONS Velocity constraint iterations per sub-step. (solver.c: ITERATIONS) TIME_TO_SLEEP Time a body must be still before it will go to sleep, in seconds.
(B3_TIME_TO_SLEEP) contact_recycle_distance Default contact recycling distance. (B3_CONTACT_RECYCLE_DISTANCE) huge See huge linear_slop A small length used as a collision and constraint tolerance. Usually it is
chosen to be numerically significant, but visually insignificant. In meters.
@warning modifying this can have a significant impact on stability
(B3_LINEAR_SLOP) max_aabb_margin Maximum AABB margin used when expanding bounds for casts.
(B3_MAX_AABB_MARGIN) mesh_rest_offset Rest offset for mesh contact to reduce ghost collisions. Must be at least
linear_slopspeculative_distance min_capsule_length Minimum capsule segment length. (B3_MIN_CAPSULE_LENGTH) overlap_slop Used to determine if two shapes are overlapping. Typically about 10% of
linear_slop speculative_distance Used to determine if two shapes are overlapping. Typically about 4×
linear_slop