Modify the map Uvs for each polygon of the cube separately (Unity3d development 18)

Monkey original, welcome reprint. Reproduced please specify: Reproduced from COCOS2DER-CSDN, thank you!
Original address: http://blog.csdn.net/cocos2der/article/details/46611169

In today's project, you need to modify the map Uvs for each polygon in a cube, that is, there are multiple rectangular maps in the map, and you need the program to read a portion of the map to assign to each polygon of the cube.

It's already been achieved here.

CustomUVS.cs

usingUnityengine;usingSystem.Collections; [Executeineditmode] Public classCustomuvs:monobehaviour { PublicVector2 Toppoint; PublicVector2 Bottompoint; PublicVector2 Leftpoint; PublicVector2 RightPoint; PublicVector2 FrontPoint; PublicVector2 Backpoint;PrivateMesh M_mesh; Public enumCubefacetype {Top, Bottom, left, right, Front, back};// Use this for initialization    voidStart () {Meshfilter meshfilter = getcomponent<meshfilter> ();if(Meshfilter = =NULL) {Debug.logerror ("Script needs Meshfilter component");return; }#if unity_editorMesh meshcopy = mesh.instantiate (Meshfilter.sharedmesh) asMesh;//Make a deep copyMeshcopy.name ="Cube"; M_mesh = Meshfilter.mesh = meshcopy;//Assign the copy to the meshes#Else M_mesh = Meshfilter.mesh;#endif         if(M_mesh = =NULL|| M_mesh.uv.Length! = -) {Debug.logerror ("Script needs to being attached to built-in cube");return;    } Updatemeshuvs (); }//Update is called once per frame    voidUpdate () {#if unity_editorUpdatemeshuvs ();#endif }voidUpdatemeshuvs () {vector2[] Uvs = M_MESH.UV;//FrontSetfacetexture (Cubefacetype.front, Uvs);//TopSetfacetexture (Cubefacetype.top, Uvs);// backSetfacetexture (Cubefacetype.back, Uvs);//BottomSetfacetexture (Cubefacetype.bottom, Uvs);// LeftSetfacetexture (Cubefacetype.left, Uvs);// RightSetfacetexture (Cubefacetype.right, Uvs);    M_MESH.UV = Uvs; } vector2[] Getuvs (floatOriginx,floatOriginy) {vector2[] Uvs =Newvector2[4]; uvs[0] =NewVector2 (Originx/3.0F, Originy/3.0f); uvs[1] =NewVector2 ((Originx +1) /3.0F, Originy/3.0f); uvs[2] =NewVector2 (Originx/3.0F, (Originy +1) /3.0f); uvs[3] =NewVector2 ((Originx +1) /3.0F, (Originy +1) /3.0f);returnUvs }voidSetfacetexture (Cubefacetype facetype, vector2[] Uvs) {if(Facetype = = Cubefacetype.front)            {vector2[] Newuvs = Getuvs (Frontpoint.x, FRONTPOINT.Y); uvs[0] = newuvs[0]; uvs[1] = newuvs[1]; uvs[2] = newuvs[2]; uvs[3] = newuvs[3]; }Else if(Facetype = = Cubefacetype.back)            {vector2[] Newuvs = Getuvs (Backpoint.x, BACKPOINT.Y); uvs[Ten] = newuvs[0]; uvs[ One] = newuvs[1]; uvs[6] = newuvs[2]; uvs[7] = newuvs[3]; }Else if(Facetype = = cubefacetype.top)            {vector2[] Newuvs = Getuvs (Toppoint.x, TOPPOINT.Y); uvs[8] = newuvs[0]; uvs[9] = newuvs[1]; uvs[4] = newuvs[2]; uvs[5] = newuvs[3]; }Else if(Facetype = = Cubefacetype.bottom)            {vector2[] Newuvs = Getuvs (Bottompoint.x, BOTTOMPOINT.Y); uvs[ A] = newuvs[0]; uvs[ -] = newuvs[1]; uvs[ the] = newuvs[2]; uvs[ -] = newuvs[3]; }Else if(Facetype = = Cubefacetype.left)            {vector2[] Newuvs = Getuvs (Leftpoint.x, LEFTPOINT.Y); uvs[ -] = newuvs[0]; uvs[ -] = newuvs[1]; uvs[ +] = newuvs[2]; uvs[ -] = newuvs[3]; }Else if(Facetype = = cubefacetype.right)            {vector2[] Newuvs = Getuvs (Rightpoint.x, RIGHTPOINT.Y); uvs[ -] = newuvs[0]; uvs[ A] = newuvs[1]; uvs[ at] = newuvs[2]; uvs[ +] = newuvs[3]; }    }}

1. Map used
   

2. Add a change to the image material to a cube. and add the CustomUVS.cs script. Modify the area origin to intercept
   

Note: Since the picture is 3x3, the intercept area is truncated by 3.

Actual effect

Modify the map Uvs for each polygon of the cube separately (Unity3d development 18)