void Start()
{
meshFilter = GetComponent <MeshFilter>();
meshRenderer = GetComponent <MeshRenderer>();
if (meshFilter == null)
{
meshFilter = gameObject.AddComponent <MeshFilter>();
}
if (meshRenderer == null)
{
meshRenderer = gameObject.AddComponent <MeshRenderer>();
}
meshFilter.sharedMesh = CreateWaterMesh();
meshRenderer.sharedMaterial = waterMaterial;
vertecies = waterMesh.vertices;
waveEquationCom = new WaveEquationComponent();
waveEquationCom.InitWavePargms(waveSpeed, viscosity, 1.0f / (float)(heightMapSize), deltaTime);
if (!CheckSupport())
{
//return;
}
CreateWaterCameraGO();
}
//width，height，depth：正交摄像机宽高深度， texSize：照相机targetTexture纹理大小 waveEquationComponent：波动方程组件
public void InitWaterCameraCom(float width, float height, float depth, int texSize, WaveEquationComponent waveEquationComponent)
{
this.waveEquationCom = waveEquationComponent;
this.waveEquationCom.InitWaveEquMat(texSize, waveMat);
waterCamera = gameObject.AddComponent <Camera>();
waterCamera.aspect = width / height;
waterCamera.backgroundColor = Color.black;
waterCamera.cullingMask = 0;
waterCamera.depth = 0;
waterCamera.farClipPlane = depth;
waterCamera.nearClipPlane = 0;
waterCamera.orthographic = true;
waterCamera.orthographicSize = height * 0.5f;
waterCamera.clearFlags = CameraClearFlags.Depth;
waterCamera.allowHDR = false;
commandBuffer = new CommandBuffer();
waterCamera.AddCommandBuffer(CameraEvent.AfterImageEffectsOpaque, commandBuffer);
RenderTexture orgRT = RenderTexture.active;
curTexture = RenderTexture.GetTemporary(texSize, texSize, 16);
curTexture.name = "[CurrentTexture]";
RenderTexture.active = curTexture;//这里需要设置RenderTexture.active好让GL.Clear()生效
GL.Clear(false, true, new Color(0, 0, 0, 0));
heightMap = RenderTexture.GetTemporary(texSize, texSize, 16);
heightMap.name = "[WaterHeightMap]";
RenderTexture.active = heightMap;
GL.Clear(false, true, new Color(0, 0, 0, 0));
normalMap = RenderTexture.GetTemporary(texSize, texSize, 16);
normalMap.name = "[WaterNormalMap]";
RenderTexture.active = orgRT;
waterCamera.targetTexture = curTexture;
}
