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I just found out that picking with fastcheck set to true doesn't work as expected. It won't give you the closest mesh but the one added to the scene first! The problem is inside _internalPick function. I added a comment where it literally breaks the search for the closest hit. private _internalPick(rayFunction: (world: Matrix) => Ray, predicate: (mesh: AbstractMesh) => boolean, fastCheck?: boolean): PickingInfo { var pickingInfo = null; for (var meshIndex = 0; meshIndex < this.meshes.length; meshIndex++) { var mesh = this.meshes[meshIndex]; if (predicate) { if (!predicate(mesh)) { continue; } } else if (!mesh.isEnabled() || !mesh.isVisible || !mesh.isPickable) { continue; } var world = mesh.getWorldMatrix(); var ray = rayFunction(world); var result = mesh.intersects(ray, fastCheck); if (!result || !result.hit) continue; if (!fastCheck && pickingInfo != null && result.distance >= pickingInfo.distance) continue; pickingInfo = result; // This breaks the search for the closest hit when anything is hit. if (fastCheck) { break; } } Or is this actually intended @Deltakosh?