96 lines
2.8 KiB
C#
96 lines
2.8 KiB
C#
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// Crest Ocean System
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// Copyright 2020 Wave Harmonic Ltd
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using UnityEngine;
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namespace Crest.Examples
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{
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[AddComponentMenu(Crest.Internal.Constants.MENU_PREFIX_EXAMPLE + "Ripple Generator")]
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public class RippleGenerator : MonoBehaviour
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{
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/// <summary>
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/// The version of this asset. Can be used to migrate across versions. This value should
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/// only be changed when the editor upgrades the version.
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/// </summary>
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[SerializeField, HideInInspector]
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#pragma warning disable 414
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int _version = 0;
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#pragma warning restore 414
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public bool _animate = true;
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public float _warmUp = 3f;
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public float _onTime = 0.2f;
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public float _period = 4f;
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Renderer _rend;
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MaterialPropertyBlock _mpb;
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RegisterDynWavesInput _rdwi;
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public static class ShaderIDs
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{
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public static readonly int s_SimCount = Shader.PropertyToID("_SimCount");
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}
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void Start()
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{
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TryGetComponent(out _rdwi);
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if (OceanRenderer.Instance == null || !OceanRenderer.Instance.CreateDynamicWaveSim || _rdwi == null)
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{
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enabled = false;
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return;
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}
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_rend = GetComponent<Renderer>();
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_mpb = new MaterialPropertyBlock();
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}
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void Update()
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{
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if (OceanRenderer.Instance == null)
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{
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return;
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}
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if (_animate)
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{
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float t = OceanRenderer.Instance.CurrentTime;
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if (t < _warmUp)
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return;
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t -= _warmUp;
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t = Mathf.Repeat(t, _period);
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_rdwi.enabled = t < _onTime;
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}
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// which lod is this object in (roughly)?
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Rect thisRect = new Rect(new Vector2(transform.position.x, transform.position.z), Vector3.zero);
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int minLod = LodDataMgrAnimWaves.SuggestDataLOD(thisRect);
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if (minLod == -1)
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{
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// outside all lods, nothing to update!
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return;
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}
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// how many active wave sims currently apply to this object - ideally this would eliminate sims that are too
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// low res, by providing a max grid size param
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LodDataMgrDynWaves.CountWaveSims(minLod, out var simsPresent, out var simsActive);
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if (simsPresent == 0)
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{
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enabled = false;
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return;
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}
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var dt = 1 / OceanRenderer.Instance._lodDataDynWaves.Settings._simulationFrequency;
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_rend.GetPropertyBlock(_mpb);
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_mpb.SetFloat(ShaderIDs.s_SimCount, simsActive);
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_mpb.SetFloat(LodDataMgrPersistent.sp_SimDeltaTime, dt);
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_rend.SetPropertyBlock(_mpb);
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}
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}
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}
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