An apparatus comprising: means for rendering a virtual scene of a virtual space that corresponds to a virtual position of a user in the virtual space as determined at least in part by the position of the user in a physical space; means for identifying one or more objects in the virtual scene which are in conflict with attributes of the physical space; means for dynamically determining attributes of the physical space; means for detecting one or more blinking periods of the user when rendering the virtual scene; and means for modifying the position of the one or more conflicting objects in the virtual scene based on a detected context of both the user and the one or more objects, the modifying being performed within the one or more detected blinking periods, wherein: the modifying means is configured to modify the position of the one or more conflicting objects in the virtual scene differently in a plurality of detected blinking periods; the detected context is determined based on the position of the one or more conflicting objects in a field-of-view of the user at the one or more blinking periods; the modifying means is configured to modify the position of the one or more conflicting objects by an amount dependent on the position of the one or more conflicting objects in the field-of-view of the user at the one or more blinking periods; the modifying means is configured to modify the position of the one or more conflicting objects by an increasing amount in relation to the distance of the one or more conflicting objects from a central region of the field-of-view; the detected context is based on detected movement of the one or more conflicting objects in the field-of-view of the user at the one or more blinking periods; the detected context is based on detected movement of the user at the one or more blinking periods; and the modifying means is configured to modify the position of the one or more objects by an increasing amount in relation to the amount of movement of the one or more conflicting objects or the user at the one or more blinking periods. means for rendering a virtual scene of a virtual space that corresponds to a virtual position of a user in the virtual space as determined at least in part by the position of the user in a physical space; means for identifying one or more objects in the virtual scene which are in conflict with attributes of the physical space; means for dynamically determining attributes of the physical space; means for detecting one or more blinking periods of the user when rendering the virtual scene; and means for modifying the position of the one or more conflicting objects in the virtual scene based on a detected context of both the user and the one or more objects, the modifying being performed within the one or more detected blinking periods, wherein: the modifying means is configured to modify the position of the one or more conflicting objects in the virtual scene differently in a plurality of detected blinking periods; the detected context is determined based on the position of the one or more conflicting objects in a field-of-view of the user at the one or more blinking periods; the modifying means is configured to modify the position of the one or more conflicting objects by an amount dependent on the position of the one or more conflicting objects in the field-of-view of the user at the one or more blinking periods; the modifying means is configured to modify the position of the one or more conflicting objects by an increasing amount in relation to the distance of the one or more conflicting objects from a central region of the field-of-view; the detected context is based on detected movement of the one or more conflicting objects in the field-of-view of the user at the one or more blinking periods; the detected context is based on detected movement of the user at the one or more blinking periods; and the modifying means is configured to modify the position of the one or more objects by an increasing amount in relation to the amount of movement of the one or more conflicting objects or the user at the one or more blinking periods. the modifying means is configured to modify the position of the one or more conflicting objects in the virtual scene differently in a plurality of detected blinking periods; the detected context is determined based on the position of the one or more conflicting objects in a field-of-view of the user at the one or more blinking periods; the modifying means is configured to modify the position of the one or more conflicting objects by an amount dependent on the position of the one or more conflicting objects in the field-of-view of the user at the one or more blinking periods; the modifying means is configured to modify the position of the one or more conflicting objects by an increasing amount in relation to the distance of the one or more conflicting objects from a central region of the field-of-view; the detected context is based on detected movement of the one or more conflicting objects in the field-of-view of the user at the one or more blinking periods; the detected context is based on detected movement of the user at the one or more blinking periods; and the modifying means is configured to modify the position of the one or more objects by an increasing amount in relation to the amount of movement of the one or more conflicting objects or the user at the one or more blinking periods.