├── README.md
└── VFXGraphOscControl.cs


/README.md:
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 1 | # VFXGraphOSCControl
 2 | A quick script to control VFX parameters using OSC messages:
 3 | 
 4 | 
 5 | 1. Import OscJack (https://github.com/keijiro/OscJack/releases)
 6 | 2. Expose some float parameters using VFX graph's blackboard
 7 | 3. Add this script under your VisualEffects object
 8 | 4. Set OSC port, obviously.
 9 | 5. Add the names of the parameters to the parameters array in the inspector. (Use the EXACT same name in the VFX graph)
10 | 6. Send your OSC messages from your preferred application using messages with the structure /<parameter name> <float_value>. 
11 | Eg. "/emission_rate 10000" (emission_rate has to be the exact same name in script and blackboard). 
12 | 
13 | <br/>
14 | 
15 | 
16 | <p align="center"><img src="https://user-images.githubusercontent.com/4733666/55290463-8c33ef80-540e-11e9-9cfd-105eef041e54.png" width="350"></p>
17 | 


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/VFXGraphOscControl.cs:
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  1 | /*
  2 | 
  3 | A quick script for controlling VFX parameters using OSC messages
  4 | 
  5 | 1. Import OscJack (https://github.com/keijiro/OscJack/releases)
  6 | 2. Expose some float parameters using VFX graph's blackboard
  7 | 3. Add this script under your VisualEffects object
  8 | 4. Set OSC port, obviously.
  9 | 5. Add the names of the parameters to the parameters array in the inspector. (Use the EXACT same name in the VFX graph)
 10 | 6. Send your OSC messages from your preferred application using the messages with the structure /<parameter name> <float_value>. 
 11 | Eg. "/emission_rate 10000" (emission_rate has to be the exact same name in script and blackboard). 
 12 | 
 13 | 
 14 | */
 15 | 
 16 | 
 17 | 
 18 | using System.Collections;
 19 | using System.Collections.Generic;
 20 | using UnityEngine;
 21 | 
 22 | using UnityEngine.VFX;
 23 | using OscJack;
 24 | 
 25 | [RequireComponent(typeof(VisualEffect))]
 26 | public class VFXGraphOscControl : MonoBehaviour
 27 | {
 28 | 
 29 |     public int port = 9001;
 30 | 
 31 |     OscServer server;
 32 | 
 33 |     VisualEffect visualEffect;
 34 | 
 35 | 
 36 |     //[Tooltip("Add a name for each (float) exposed parameter on your VFX graph")]
 37 |     public string [] parameters;
 38 | 
 39 |     private Dictionary<string, bool> updateFlags;
 40 |     private Dictionary<string, float> valueHolder;
 41 |     
 42 | 
 43 |     void Start()
 44 |     {
 45 |         server = new OscServer( port);
 46 | 
 47 |         updateFlags = new Dictionary<string, bool>();
 48 | 
 49 |         valueHolder = new Dictionary<string, float>();
 50 |         
 51 |         visualEffect = GetComponent<VisualEffect>();
 52 |         
 53 |         foreach(string parameter in parameters)
 54 |         {
 55 |             string callbackName = "/" + parameter;
 56 | 
 57 |             updateFlags.Add(parameter, false);
 58 | 
 59 |             valueHolder.Add(parameter, 0f);
 60 |         
 61 |             server.MessageDispatcher.AddCallback(callbackName,
 62 |             (string address, OscDataHandle data) =>
 63 |             {
 64 |                 string parameterName = address.Substring(1);
 65 | 
 66 |                 updateFlags[parameterName] = true;
 67 |                
 68 |                 valueHolder[parameterName] = data.GetElementAsFloat(0);
 69 |                
 70 |             }
 71 |             );
 72 | 
 73 |             Debug.Log("Added callback for " + callbackName);
 74 |         }
 75 |         
 76 | 
 77 |     }
 78 | 
 79 |     void Update()
 80 |     {
 81 | 
 82 |         foreach (string parameter in parameters) {
 83 | 
 84 |             if (updateFlags[parameter] == true) {
 85 | 
 86 |                 visualEffect.SetFloat(parameter, valueHolder[parameter]);
 87 | 
 88 |                 updateFlags[parameter] = false;
 89 | 
 90 |                 //Debug.Log("setting " + parameter);
 91 |                 
 92 | 
 93 |             }
 94 | 
 95 |         }
 96 | 
 97 |     }
 98 |     
 99 |     
100 |     void OnDisable() {
101 | 
102 |         server.Dispose();
103 | 
104 |     }
105 | }
106 | 


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