About unity implementing custom polygon Picture effects

About unity implementing custom polygon Picture effects

1. Create rawimageeditor Editor extension script (placed in Project Editor folder, not created)

1 /*************************************************2 * Project name: Dynamic change Picture display edge number3 * Script Creator: Magic card4 * Script creation time: 2018.01.275 * Scripting feature: Rawimageeditor editor feature rewrite6  * ***********************************************/7 usingSystem.Collections;8 usingSystem.Collections.Generic;9 usingUnityengine;Ten usingUnityeditor; One usingUnityeditor.ui; A  -[Customeditor (typeof(uicircle),true)] - [Caneditmultipleobjects] the  Public classUicircleinspector:rawimageeditor - { -  -      Public Override voidOninspectorgui () +     { -         Base. Oninspectorgui (); +Uicircle Circle = target asuicircle; Acircle.segments = Mathf.clamp (Editorguilayout.intfield ("Uicircle Polygon", circle.segments),3, the)///Set the minimum of the number of sides to the maximum value (3-360) at     } -  -}

2. Create a rawimage redraw script

1 /*************************************************2 * Project name: Dynamic change Picture display edge number3 * Script Creator: Magic card4 * Script creation time: 2018.01.275 * Scripting feature: Rawimage re-drawing scripts6  * ***********************************************/7 usingSystem;8 usingUnityengine;9 usingUnityengine.ui;Ten  One  Public classUicircle:rawimage A { -     Const intFill_percent = -; -     floatThickness =5; the  - [Serializefield] -[Range (3, the)] -     int_segments = $; +  -      Public intSegments +     { A         Get{return_segments;} at         Set -         { -             if(_segments! =value) -             { -_segments =value; - Setverticesdirty (); in #ifUnity_editor - UnityEditor.EditorUtility.SetDirty (transform); to #endif +             } -         } the     } *  $ Panax Notoginseng     protected Override voidOnrecttransformdimensionschange () -     { the         Base. Onrecttransformdimensionschange (); +          This. Thickness = (float) Mathf.clamp ( This. Thickness,0, RectTransform.rect.width/2); A     } the  +     protected Override voidOnpopulatemesh (vertexhelper VH) -     { $         floatouter =-recttransform.pivot.x *RectTransform.rect.width; $         floatInner =-recttransform.pivot.x * RectTransform.rect.width + This. Thickness; -  - VH. Clear (); the  -Vector2 PrevX =Vector2.zero;WuyiVector2 Prevy =Vector2.zero; theVector2 uv0 =NewVector2 (0,0); -Vector2 Uv1 =NewVector2 (0,1); WuVector2 Uv2 =NewVector2 (1,1); -Vector2 Uv3 =NewVector2 (1,0); About Vector2 Pos0; $ Vector2 pos1; - Vector2 Pos2; - Vector2 Pos3; -  A         floatTW =RectTransform.rect.width; +         floatth =RectTransform.rect.height; the  -         floatAnglebystep = (FILL_PERCENT/100F * (MATHF.PI * 2f))/segments; $         floatCurrentangle =0f; the          for(inti =0; I < segments +1; i++) the         { the  the             floatc =Mathf.cos (currentangle); -             floats =Mathf.sin (currentangle); in  theStepthroughpointsandfill (outer, inner,refPrevX,refPrevy, outPos0, outPOS1, outPos2, outPos3, C, s); the  AboutUv0 =NewVector2 (POS0.X/TW +0.5f, pos0.y/th +0.5f); theUv1 =NewVector2 (POS1.X/TW +0.5f, pos1.y/th +0.5f); theUv2 =NewVector2 (POS2.X/TW +0.5f, pos2.y/th +0.5f); theUv3 =NewVector2 (POS3.X/TW +0.5f, pos3.y/th +0.5f); +  -Vh. Adduivertexquad (Setvbo (New[] {pos0, pos1, Pos2, POS3},New[] {uv0, uv1, Uv2, Uv3}); the BayiCurrentangle + =Anglebystep; the         } the     } -  -     Private voidStepthroughpointsandfill (floatOuterfloatInnerrefVector2 PrevX,refVector2 Prevy, outVector2 Pos0, outVector2 POS1, outVector2 Pos2, outVector2 Pos3,floatCfloats) the     { thePos0 =PrevX; thePOS1 =NewVector2 (outer * c, outer *s); the  -Pos2 =Vector2.zero; thePOS3 =Vector2.zero; the  thePrevX =pos1;94Prevy =Pos2; the     } the  the     protecteduivertex[] Setvbo (vector2[] vertices, vector2[] uvs)98     { Aboutuivertex[] Vbo =Newuivertex[4]; -          for(inti =0; I < vertices. Length; i++)101         {102             varVert =Uivertex.simplevert;103Vert.color =color;104Vert.position =Vertices[i]; theVert.uv0 =Uvs[i];106Vbo[i] =Vert;107         }108         returnVbo;109     } the 111}

3. Find an empty object under a canvas, mount the uicircle script, drag the picture you want to display to texture, and change the number of picture edges as needed

4. as follows:

　　　　　　

About unity implementing custom polygon Picture effects