b3dMeshMaxY

Returns the maximum Y coordinate of a mesh's bounding box in local mesh space. Takes entity (mesh entity handle). Returns maximum Y value (Double), or 0.0 on error. Validates entity exists and type is ENTITY_MESH. Validates mesh has vertex data (not empty). Iterates all vertices in mesh to find maximum Y position. Returns unscaled mesh-space coordinate (does not account for entity scale/rotation). Silently returns 0.0 on errors.

This function queries mesh bounding box extent for collision detection, ceiling clearance, or procedural stacking. Returns local-space coordinates before transforms applied - multiply by entity scale to get world-space extent. Useful for: (1) Ceiling clearance checks (check if maxY + entityY < ceilingY), (2) Vertical stacking (stack objects: nextY = prevY + b3dMeshMaxY(prev)), (3) Calculating height (height = MaxY - MinY), (4) Collision volume sizing. Coordinate system: right-handed, Y-axis points up. For scaled bounds, multiply by b3dEntityScaleY (global scale). For rotated bounds, transformation required (not axis-aligned). Complements b3dMeshHeight (height = MaxY - MinY), b3dMeshWidth, b3dMeshDepth. Use b3dFitMesh to scale mesh to fit target dimensions. Returns actual vertex position max - for primitives like sphere/cube, typically radius or size/2. For loaded meshes, depends on modeling coordinates (Y-up vs Z-up). Common values: cube (1.0), sphere (1.0), custom meshes (arbitrary). Performance: O(n) iteration over vertices - cache result if querying repeatedly. Does not trigger GPU operations.