kelleyma49 / NVJOB-Water-Shader-simple-and-fast

NVJOB Water Shader - simple and fast

NVJOB Water Shader - simple and fast.

Version 1.4.1

Simple and fast water shader. This shader is suitable for scenes where water is not a key element of the scene, but a decorative element. Supported rendering path deferred and forward.

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Prerequisites

To work on the project, you will need a Unity version of at least 2019.1.0f2 (64-bit).

Information

The movement of the waves is carried out using global shader variables: _WaterLocalUvX, _WaterLocalUvZ, _WaterLocalUvNX, _WaterLocalUvNZ.

_WaterLocalUvX, _WaterLocalUvZ - Offset main texture.
_WaterLocalUvNX, _WaterLocalUvNZ - Offset normal map texture.

An example of a script for the movement of water.

using UnityEngine;

public class Water : MonoBehaviour
{
    public float UvRotateSpeed = 0.2;
    public float UvRotateDistance = 1;
    public float UvBumpRotateSpeed = 0.4;
    public float UvBumpRotateDistance = 2;

    float timeTime;
    Vector2 Vector2one, lwVector, lwNVector;
    Vector3 Vector3forward;    

    private void Awake()
    {
        lwVector = Vector2.zero;
        lwNVector = Vector2.zero;
    }

    void Update()
    {
        if (timeTime != Time.time) timeTime = Time.time;
        if (Vector3forward != Vector3.forward) Vector3forward = Vector3.forward;
        if (Vector2one != Vector2.one) Vector2one = Vector2.one;

        lwVector = Quaternion.AngleAxis(timeTime * UvRotateSpeed, Vector3forward) * Vector2one * UvRotateDistance;
        lwNVector = Quaternion.AngleAxis(timeTime * UvBumpRotateSpeed, Vector3forward) * Vector2one * UvBumpRotateDistance;

        Shader.SetGlobalFloat("_WaterLocalUvX", lwVector.x);
        Shader.SetGlobalFloat("_WaterLocalUvZ", lwVector.y);
        Shader.SetGlobalFloat("_WaterLocalUvNX", lwNVector.x);
        Shader.SetGlobalFloat("_WaterLocalUvNZ", lwNVector.y);
    }
}

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Authors

Designed by #NVJOB Nicholas Veselov | https://nvjob.pro | http://nvjob.dx.am | https://twitter.com/nvjob

License

This project is licensed under the MIT License - see the LICENSE file for details