[Unity] Access to the PostProcess from script

m2048 — Mon, 28 Oct 2024 13:57:02 +0000

[Built-in render pipeline]

1st of all, import UnityEngine.Rendering.PostProcessing,
and get the PostProcessVolume.

using UnityEngine.Rendering.PostProcessing;

    [SerializeField] PostProcessVolume m_vol;

2nd of all, get the PostProcessProfile and get the effect you want.

    PostProcessProfile profile = m_vol.profile;
    m_colorGrading = profile.GetSetting<ColorGrading>();

3.
and edit parameters.

using UnityEngine;
using UnityEngine.Rendering.PostProcessing;

namespace PostProcessBuiltinChangerDemo
{
    public class PostProcessBuiltinChanger : MonoBehaviour
    {
        [SerializeField] PostProcessVolume m_vol;
        ColorGrading m_colorGrading;

        // Start is called once before the first execution of Update after the MonoBehaviour is created
        void Start()
        {
            PostProcessProfile profile = m_vol.profile;
            m_colorGrading = profile.GetSetting<ColorGrading>();
        }

        // Update is called once per frame
        void Update()
        {
        }

        public void OnSetGamma(float _value)
        {
            Vector4Parameter gamma = m_colorGrading.gamma;
            gamma.value = new Vector4(1f, 1f, 1f, _value);
            m_colorGrading.gamma = gamma;
            Debug.Log("gamma: " + gamma.value);
        }
    }
}

[Universal render pipeline(URP)]

1st of all, import UnityEngine.Rendering.Universal,
and get the UnityEngine.Rendering.Volume.

using UnityEngine.Rendering.Universal;

    [SerializeField] UnityEngine.Rendering.Volume m_vol;

2nd of all, TryGet() the effect.

    LiftGammaGain m_liftGammaGain

        m_liftGammaGain = null;
        m_vol.profile.TryGet(out m_liftGammaGain);

3.
and edit parameters.

using UnityEngine;
using UnityEngine.Rendering.Universal;

namespace PostProcessURPChangerDemo
{
    public class PostProcessURPChanger : MonoBehaviour
    {
        [SerializeField] UnityEngine.Rendering.Volume m_vol;
        LiftGammaGain m_liftGammaGain;

        // Start is called once before the first execution of Update after the MonoBehaviour is created
        void Start()
        {
            m_liftGammaGain = null;
            m_vol.profile.TryGet(out m_liftGammaGain);
        }

        // Update is called once per frame
        void Update()
        {
        }

        public void OnSetGamma(float _value)
        {
            m_liftGammaGain.gamma.value = new Vector4(1f, 1f, 1f, _value);
        }
    }
}

[Unity] Make a loop sound from non-loop one

m2048 — Fri, 24 Sep 2021 06:33:56 +0000

We released AmbientLooper on Unity Asset store.
This asset will generate a loop .wav file or clip from non-loop one.

Following script is a part of this asset.
attach this script in a object that contains AudioSource,
a clip in the AudioSource becomes loop clip.
Movie

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

[RequireComponent(typeof(AudioSource))]
public class CrossFadeLoop : MonoBehaviour
{
    [Tooltip("cross fade dulation[sec]"), Range(0.1f, 5f)] public float m_crossFadeTime = 1f;

    void Start()
    {
        AudioSource audioSrc = gameObject.GetComponent<AudioSource>();
        AudioClip ac = audioSrc.clip;
        float[] data = new float[ac.samples * ac.channels];
        ac.GetData(data, 0);
        int span = Mathf.FloorToInt(m_crossFadeTime * (float)(ac.frequency * ac.channels));
        span -= (span % ac.channels);
        float[] newData = CrossFade(data, span);
        AudioClip newAc = AudioClip.Create("_loop_" + ac.name, newData.Length / ac.channels, ac.channels, ac.frequency, false);
        newAc.SetData(newData, 0);
        audioSrc.clip = newAc;
        if (audioSrc.playOnAwake)
            audioSrc.Play();
    }

    static public float[] CrossFade(float[] data, int span)
    {
        if (data.Length < span * 2)
            return data;

        float[] retData = new float[data.Length - span];
        for (int i = 0; i < span; ++i)
        {
            float rate = (float)(i + 1) / (float)(span + 1);
            retData[i] = data[i] * rate + data[data.Length - span + i] * (1f - rate);
        }
        for (int i = span; i < data.Length - span; ++i)
            retData[i] = data[i];

        return retData;
    }
}

DEV Community: m2048

[Unity] Access to the PostProcess from script

[Built-in render pipeline]

[Universal render pipeline(URP)]

[Unity] Make a loop sound from non-loop one