Aligned Box - A box-shaped room with a fixed orientation.The shape is calculated by finding the smallest box (by volume) that all the green hit points will fit inside. The orientation of the box is determined automatically during the Fit To Geometry operation. Oriented Box - A box-shaped room with an arbitrary orientation.Three types of shapes are supported the shape type is selected in the Details panel of the AkSpatialAudioVolumes.It can be useful to take note of where the rays hit to make sense of the resulting shape, to make sure that the correct collision channel is being used, and lastly, to make sure the correct acoustic textures are assigned to the resulting surfaces. The hit points for these rays are colored green (or red, when the hits are ignored). The Fit To Geometry operation works by tracing a number of rays from the origin of the actor, emanating spherically outwards to probe for walls.Note that after performing a Fit To Geometry operation, the transform of the AkSpatialAudioVolume actor remains unchanged - only the child brush component is modified.
#SOURCE ENGINE SDK LIGHT RAYS UPDATE#
Drag the volume until a desirable fit is found, and then release the mouse to update the brush volume of the AkSpatialAudioVolume. While dragging the translation gizmo, a yellow preview outline is drawn to give you an indication of how the AkSpatialAudioVolume will fit to a specific location in the world.After the option has been enabled, the Fit To Geometry operation is performed any time the volume is translated to a new location using the transform gizmo. The Fit To Geometry operation is initially performed after enabling the option in the Details panel for an AkSpatialAudioVolume.Placing AkSpatialAudioVolumes Using Fit To Geometry It cannot be used inside the Blueprint editor viewport, nor can it be used on the individual components that make up the aforementioned actors: AkPortalComponent, AkSurfaceReflectorSet, AkRoomComponent, and AkLateReverb. The Fit To Geometry feature is only available for use with the AkAcousticPortal and AkSpatialAudioVolume actors inside the level editor viewport. For more information, refer to Automatically Assigning Acoustic Textures to AkSpatialAudioVolumes. If using acoustic materials for early reflections on AkSurfaceReflectorSets, make sure that you have set up the desired mapping inside the Wwise integration settings.This setting is found in the Details panel for both AkAcousticPortals and AkSpatialAudioVolumes. If desired, individual AkAcousticPortals and AkSpatialAudioVolume can override the default collision channel and choose a different one.Therefore, the collision channel must correspond with the collision parameters of the static mesh that the AkAcousticPortals and AkSpatialAudioVolumes are placed within. The Fit To Geometry feature uses the Unreal Engine to perform ray traces, and the rays must be able to intersect the surrounding static mesh geometry. Select the desired default collision channel inside the Wwise Integration settings.
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