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/** * SoundNodeDistanceCrossFade * * This node's purpose is to play different sounds based on the distance to the listener. * The node mixes between the N different sounds which are valid for the distance. One should * think of a SoundNodeDistanceCrossFade as Mixer node which determines the set of nodes to * "mix in" based on their distance to the sound. * * Example: * You have a gun that plays a fire sound. At long distances you want a different sound than * if you were up close. So you use a SoundNodeDistanceCrossFade which will calculate the distance * a listener is from the sound and play either: short distance, long distance, mix of short and long sounds. * * A SoundNodeDistanceCrossFade differs from an SoundNodeAttenuation in that any sound is only going * be played if it is within the MinRadius and MaxRadius. So if you want the short distance sound to be * heard by people close to it, the MinRadius should probably be 0 * * The volume curve for a SoundNodeDistanceCrossFade will look like this: * * Volume (of the input) * FadeInDistance.Max --> _________________ <-- FadeOutDistance.Min * / \ * / \ * / \ * FadeInDistance.Min -->/ \ <-- FadeOutDistance.Max * * Copyright 1998-2008 Epic Games, Inc. All Rights Reserved. **/ class SoundNodeDistanceCrossFade extends SoundNode native(Sound) collapsecategories hidecategories(Object) editinlinenew; struct native DistanceDatum { /** * The FadeInDistance at which to start hearing this sound. If you want to hear the sound * up close then setting this to 0 might be a good option. **/ var() rawdistributionfloat FadeInDistance; /** * The FadeOutDistance is where hearing this sound will end. **/ var() rawdistributionfloat FadeOutDistance; /** The volume for which this Input should be played **/ var() float Volume; structdefaultproperties { Volume=1.0f } }; /** * Each input needs to have the correct data filled in so the SoundNodeDistanceCrossFade is able * to determine which sounds to play **/ var() export editfixedsize array<DistanceDatum> CrossFadeInput; // (cpptext) // (cpptext) // (cpptext) // (cpptext) // (cpptext) // (cpptext) // (cpptext) // (cpptext) // (cpptext) // (cpptext) // (cpptext) // (cpptext) // (cpptext) // (cpptext) // (cpptext) // (cpptext) defaultproperties { Name="Default__SoundNodeDistanceCrossFade" ObjectArchetype=SoundNode'Engine.Default__SoundNode' } |
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