Change effect intensity through script

Unity Engine
, ,
1

So I want to change the Intensity Value of this effect. I can change it in the inspector, but how can I change it through another script?

// KinoGlitch - Video glitch effect
//
// Copyright (C) 2015 Keijiro Takahashi
using UnityEngine;

namespace Kino
{
    [ExecuteInEditMode]
    [RequireComponent(typeof(Camera))]
    [AddComponentMenu("Kino Image Effects/Digital Glitch")]
    public class DigitalGlitch : MonoBehaviour
    {
        #region Public Properties

        [SerializeField, Range(0, 1)]
        float _intensity = 0;

        public float intensity {
            get { return _intensity; }
            set { _intensity = value; }
        }

        #endregion

        #region Private Properties

        [SerializeField] Shader _shader;

        Material _material;
        Texture2D _noiseTexture;
        RenderTexture _trashFrame1;
        RenderTexture _trashFrame2;

        #endregion

        #region Private Functions

        static Color RandomColor()
        {
            return new Color(Random.value, Random.value, Random.value, Random.value);
        }

        void SetUpResources()
        {
            if (_material != null) return;

            _material = new Material(_shader);
            _material.hideFlags = HideFlags.DontSave;

            _noiseTexture = new Texture2D(64, 32, TextureFormat.ARGB32, false);
            _noiseTexture.hideFlags = HideFlags.DontSave;
            _noiseTexture.wrapMode = TextureWrapMode.Clamp;
            _noiseTexture.filterMode = FilterMode.Point;

            _trashFrame1 = new RenderTexture(Screen.width, Screen.height, 0);
            _trashFrame2 = new RenderTexture(Screen.width, Screen.height, 0);
            _trashFrame1.hideFlags = HideFlags.DontSave;
            _trashFrame2.hideFlags = HideFlags.DontSave;

            UpdateNoiseTexture();
        }

        void UpdateNoiseTexture()
        {
            var color = RandomColor();

            for (var y = 0; y < _noiseTexture.height; y++)
            {
                for (var x = 0; x < _noiseTexture.width; x++)
                {
                    if (Random.value > 0.89f) color = RandomColor();
                    _noiseTexture.SetPixel(x, y, color);
                }
            }

            _noiseTexture.Apply();
        }

        #endregion

        #region MonoBehaviour Functions

        void Update()
        {
            if (Random.value > Mathf.Lerp(0.9f, 0.5f, _intensity))
            {
                SetUpResources();
                UpdateNoiseTexture();
            }
        }

        void OnRenderImage(RenderTexture source, RenderTexture destination)
        {
            SetUpResources();

            // Update trash frames on a constant interval.
            var fcount = Time.frameCount;
            if (fcount % 13 == 0) Graphics.Blit(source, _trashFrame1);
            if (fcount % 73 == 0) Graphics.Blit(source, _trashFrame2);

            _material.SetFloat("_Intensity", _intensity);
            _material.SetTexture("_NoiseTex", _noiseTexture);
            var trashFrame = Random.value > 0.5f ? _trashFrame1 : _trashFrame2;
            _material.SetTexture("_TrashTex", trashFrame);

            Graphics.Blit(source, destination, _material);
        }

        #endregion
    }
}

Thanks for helping.

2

You get a reference to that script in your scene and then access it like you would any other variable.
So assuming ‘script’ to contain the reference to that script, you’d write script.intensity = … something.

1 Like
3

Given that this script seems to be attached to your Camera, you can probably shortcut the whole “getting a reference to your script thing” like this (assuming it’s attached to your MainCamera).

DigitalGlitch myGlitch = Camera.main.GetComponent<DigitalGlitch>();

myGlitch.intensity = 4;