Unity图片像素点复制

玻璃杯中的剪辑..。 2017/7/14 13:47:14

using System.Collections;

using System.Collections.Generic;

using UnityEngine;

public class CleanTire : MonoBehaviour 

{

    public Texture2D CleanTexture;

    Texture2D tmpTexture;

    int Width;

    int Height;

    Vector3[] Vertices;

    Vector2[] UV;

    Material mat;

// Use this for initialization

void Start () {

        mat = GetComponent<Renderer>().material;

        Texture2D OriginalTexture = (Texture2D)mat.mainTexture;

        Width=OriginalTexture.width;

        Height=OriginalTexture.height;

        tmpTexture = new Texture2D(Width, Height);

        for(int i=0;i<Width;i++)

        for(int j=0;j<Height;j++)

            {

                tmpTexture.SetPixel(i, j, OriginalTexture.GetPixel(i, j));

            }

        Vertices = GetComponent<MeshFilter>().mesh.vertices;

        UV = GetComponent<MeshFilter>().mesh.uv;

}

// Update is called once per frame

void Update () 

    {

        Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);

        RaycastHit hit;

        if (Physics.Raycast(ray, out hit))

        {

            if （hit.collider.name ==gameObject.name)

            {

                Vector3 hitPoint = hit.point;

                //  mark.transform.position = hitPoint;

                int maxX = 0; int maxY = 0;

                int minX = 9000; int minY = 9000;

                for (int i = 0; i < Vertices.Length; i++)

                {

                    float dis = Vector3.Distance(transform.TransformPoint(Vertices[i]), hitPoint); 

                    if (dis < 0.1f)

                    {

                        int x = (int)(UV[i].x * Width);

                        int y = (int)(UV[i].y * Height);

                        if (x > maxX) maxX = x; else if (x < minX) minX = x;

                        if (y > maxY) maxY = y; else if (y < minY) minY = y;

                        tmpTexture.SetPixel(x, y, CleanTexture.GetPixel(x,y));

                        //Vertices[i] = OriginalVertices[i] + Normals[i]*0.2f;

                    }

                    //else

                    //Vertices[i] = OriginalVertices[i];

                }

                // m_Mesh.vertices = Vertices;

              //  int count = 0;

                for (int i = 0; i < Width; i++)

                { 

                    for (int j = 0; j < Height; j++)

                    {

                        if (i >= minX && i <=maxX && j >= minY && j <=maxY)

                        { 

                            tmpTexture.SetPixel(i, j, CleanTexture.GetPixel(i,j));

                //            count++;

                        }

                    }

                  //  if (count > 40000) break;

                }

                tmpTexture.Apply();

                mat.mainTexture = tmpTexture;

            }

        }

}

}