Shader水漣漪效果
阿新 • • 發佈：2019-02-02
using UnityEngine;
using System.Collections;
using System;
using UnityEngine.UI;
public class WaterRipper : MonoBehaviour
{
public Texture2D ww;
public Material xxx;
public Color32[] ALLColor;
public float[] buf1;
public float[] buf2;
public Color32 CC;
public float DowenPower;//波能衰減力度
public int Width_Tex;
public int Hight_Tex;
public float Times;
//TODO
//137行被註釋程式碼
//public Text textpois;//這個用來檢測畫素值
//62行被註釋程式碼
//public RawImage P;//這個用來簡版的描繪波紋
// Use this for initialization
void Start()
{
Width_Tex = Screen.width / 10;
Hight_Tex = Screen.height / 10;
ww = new Texture2D(Width_Tex, Hight_Tex, TextureFormat.ARGB32, false);
xxx.SetTexture("_BumpMap", ww);
ALLColor = new Color32[Width_Tex * Hight_Tex];
buf1 = new float[Width_Tex * Hight_Tex];//儲存上一幀的波幅
buf2 = new float[Width_Tex * Hight_Tex];//這一幀的波幅
Debug.Log(ALLColor.Length);
}
// Update is called once per frame
void Update()
{
if (Times < 0.01f)
{
Times += Time.deltaTime;
}
else {
RippleSpread();
BufToColor();
Change();
Times = 0;
}
OnClickWater();
//if (Input.GetMouseButton(0))
//{
//}
//if (Input.touchCount > 0) {
// OnClickWater();
//}
//P.texture = ww;
}
//*******************************************************//計算波能資料緩衝區//*******************************************************
public void RippleSpread()
{
float X1;
float X2;
float X3;
float X4;
for (int i = 0; i < buf1.Length; i++)
{ //波能擴散
//水波邊界反彈
if ((i % Width_Tex - 1) >= 0)
{
X1 = buf1[i - 1];
}
else {
X1 = buf1[i + 1];
}
if ((i % Width_Tex + 1) < Width_Tex)
{
X2 = buf1[i + 1];
}
else {
X2 = buf1[i - 1];
}
if ((i - Width_Tex) >= 0)
{
X3 = buf1[i - Width_Tex];
}
else {
X3 = buf1[i + Width_Tex];
}
if ((i + Width_Tex) < buf1.Length)
{
X4 = buf1[i + Width_Tex];
}
else {
X4 = buf1[i - Width_Tex];
}
//波能擴散
buf2[i] = (X1 + X2 + X3 + X4) / 2f - buf1[i];
//波能衰減
buf2[i] -= buf2[i] / 32f;
if (buf2[i] < 1)
{
buf2[i] = 0;
}
}
buf1 = buf2;
}
/// <summary>
/// 將波幅度轉換成圖片顏色
/// </summary>
public void BufToColor()
{
for (int i = 0; i < buf1.Length; i++)
{
ALLColor[i].g = (byte)(buf1[i] - 128f);
ALLColor[i].a = (byte)(buf1[i] - 128f);
//ALLColor[i].r = (byte)(buf1[i] + 128f);
//ALLColor[i].b = (byte)(buf1[i] + 128f);
}
}
//*****************************************************//增加波源//*****************************************************
public void OnClickWater()
{
Vector3 V3 = Input.mousePosition;
//Vector3 V3 = Input.GetTouch(0).position;
DropStone(((int)V3.x), (int)V3.y, 100, 255);
//textpois.text = V3.ToString();
}
public void DropStone(int x, int y, int stoneSize, int stoneweight)
{ //根據傳入的座標，在對應的波幅中新增波
int X1 = x / 10;
int y1 = y / 10;
//為了不報越界錯誤錯,在這裡加入限制條件,這些數的計算結果沒有超過陣列的大小
if (Width_Tex * y1 + X1 < buf2.Length)
{
for (int posx = X1 - stoneSize; posx < X1 + stoneSize; ++posx)
{
for (int posy = y1 - stoneSize; posy < y1 + stoneSize; ++posy)
{
if ((posx - X1) * (posx - X1) + (posy - y1) * (posy - y1) < stoneSize * stoneSize)
{
buf2[Width_Tex * y1 + X1] = stoneweight;
}
}
}
}
}
public void Change()
{
ww.SetPixels32(ALLColor);
ww.Apply();
}
}
using System.Collections;
using System;
using UnityEngine.UI;
public class WaterRipper : MonoBehaviour
{
public Texture2D ww;
public Material xxx;
public Color32[] ALLColor;
public float[] buf1;
public float[] buf2;
public Color32 CC;
public float DowenPower;//波能衰減力度
public int Width_Tex;
public int Hight_Tex;
public float Times;
//TODO
//137行被註釋程式碼
//public Text textpois;//這個用來檢測畫素值
//62行被註釋程式碼
//public RawImage P;//這個用來簡版的描繪波紋
// Use this for initialization
void Start()
{
Width_Tex = Screen.width / 10;
Hight_Tex = Screen.height / 10;
ww = new Texture2D(Width_Tex, Hight_Tex, TextureFormat.ARGB32, false);
xxx.SetTexture("_BumpMap", ww);
ALLColor = new Color32[Width_Tex * Hight_Tex];
buf1 = new float[Width_Tex * Hight_Tex];//儲存上一幀的波幅
buf2 = new float[Width_Tex * Hight_Tex];//這一幀的波幅
Debug.Log(ALLColor.Length);
}
// Update is called once per frame
void Update()
{
if (Times < 0.01f)
{
Times += Time.deltaTime;
}
else {
RippleSpread();
BufToColor();
Change();
Times = 0;
}
OnClickWater();
//if (Input.GetMouseButton(0))
//{
//}
//if (Input.touchCount > 0) {
// OnClickWater();
//}
//P.texture = ww;
}
//*******************************************************//計算波能資料緩衝區//*******************************************************
public void RippleSpread()
{
float X1;
float X2;
float X3;
float X4;
for (int i = 0; i < buf1.Length; i++)
{ //波能擴散
//水波邊界反彈
if ((i % Width_Tex - 1) >= 0)
{
X1 = buf1[i - 1];
}
else {
X1 = buf1[i + 1];
}
if ((i % Width_Tex + 1) < Width_Tex)
{
X2 = buf1[i + 1];
}
else {
X2 = buf1[i - 1];
}
if ((i - Width_Tex) >= 0)
{
X3 = buf1[i - Width_Tex];
}
else {
X3 = buf1[i + Width_Tex];
}
if ((i + Width_Tex) < buf1.Length)
{
X4 = buf1[i + Width_Tex];
}
else {
X4 = buf1[i - Width_Tex];
}
//波能擴散
buf2[i] = (X1 + X2 + X3 + X4) / 2f - buf1[i];
//波能衰減
buf2[i] -= buf2[i] / 32f;
if (buf2[i] < 1)
{
buf2[i] = 0;
}
}
buf1 = buf2;
}
/// <summary>
/// 將波幅度轉換成圖片顏色
/// </summary>
public void BufToColor()
{
for (int i = 0; i < buf1.Length; i++)
{
ALLColor[i].g = (byte)(buf1[i] - 128f);
ALLColor[i].a = (byte)(buf1[i] - 128f);
//ALLColor[i].r = (byte)(buf1[i] + 128f);
//ALLColor[i].b = (byte)(buf1[i] + 128f);
}
}
//*****************************************************//增加波源//*****************************************************
public void OnClickWater()
{
Vector3 V3 = Input.mousePosition;
//Vector3 V3 = Input.GetTouch(0).position;
DropStone(((int)V3.x), (int)V3.y, 100, 255);
//textpois.text = V3.ToString();
}
public void DropStone(int x, int y, int stoneSize, int stoneweight)
{ //根據傳入的座標，在對應的波幅中新增波
int X1 = x / 10;
int y1 = y / 10;
//為了不報越界錯誤錯,在這裡加入限制條件,這些數的計算結果沒有超過陣列的大小
if (Width_Tex * y1 + X1 < buf2.Length)
{
for (int posx = X1 - stoneSize; posx < X1 + stoneSize; ++posx)
{
for (int posy = y1 - stoneSize; posy < y1 + stoneSize; ++posy)
{
if ((posx - X1) * (posx - X1) + (posy - y1) * (posy - y1) < stoneSize * stoneSize)
{
buf2[Width_Tex * y1 + X1] = stoneweight;
}
}
}
}
}
public void Change()
{
ww.SetPixels32(ALLColor);
ww.Apply();
}
}