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一応はWYSIWYGと言えるかも.
要望次第で, Polygon Collider 2Dの編集インターフェイスと同じにするかもしれません.
タイルベースのレンダリングプロセスには, 扇形は細長い三角形を生成しがちなので良くない.
足りなければ考える.
Nexus4で実行.
original UnityEngine.UI.Image
---------------------------------------- Android Unity internal profiler stats: cpu-player> min: 22.9 max: 103.2 avg: 76.4 cpu-ogles-drv> min: 0.0 max: 0.0 avg: 0.0 gpu> min: 0.0 max: 0.0 avg: 0.0 cpu-present> min: 0.0 max: 24.5 avg: 0.6 frametime> min: 44.5 max: 103.2 avg: 77.0 batches> min: 4 max: 4 avg: 4 draw calls> min: 4 max: 4 avg: 4 tris> min: 1324 max: 1324 avg: 1324 verts> min: 2632 max: 2632 avg: 2632 dynamic batching> batched draw calls: 0 batches: 0 tris: 0 verts: 0 static batching> batched draw calls: 0 batches: 0 tris: 0 verts: 0 player-detail> physx: 5.1 animation: 0.0 culling 0.0 skinning: 0.0 batching: 0.0 render: 5.3 fixed-update-count: 2 .. 5 managed-scripts> update: 11.0 fixedUpdate: 0.0 coroutines: 0.0 managed-memory> used heap: 2334720 allocated heap: 2928640, max number of collections: 0 collection total duration: 0.0
Utility.PolygonalImage2D
約2倍の頂点数で, 描画ピクセル数は80%ぐらい?
---------------------------------------- Android Unity internal profiler stats: cpu-player> min: 28.9 max: 81.2 avg: 56.6 cpu-ogles-drv> min: 0.0 max: 0.0 avg: 0.0 gpu> min: 0.0 max: 0.0 avg: 0.0 cpu-present> min: 0.0 max: 4.0 avg: 0.2 frametime> min: 28.9 max: 81.9 avg: 56.7 batches> min: 4 max: 4 avg: 4 draw calls> min: 4 max: 4 avg: 4 tris> min: 3888 max: 3888 avg: 3888 verts> min: 5200 max: 5200 avg: 5200 dynamic batching> batched draw calls: 0 batches: 0 tris: 0 verts: 0 static batching> batched draw calls: 0 batches: 0 tris: 0 verts: 0 player-detail> physx: 3.0 animation: 0.0 culling 0.0 skinning: 0.0 batching: 0.0 render: 5.0 fixed-update-count: 1 .. 4 managed-scripts> update: 9.8 fixedUpdate: 0.0 coroutines: 0.0 managed-memory> used heap: 2199552 allocated heap: 2928640, max number of collections: 0 collection total duration: 0.0
namespace LUtil
{
[RequireComponent(typeof(CanvasRenderer)), ExecuteInEditMode]
public class PolygonalImage2D : UnityEngine.UI.Image
{
public Vector2[] points_;
protected override void Awake()
{
base.Awake();
if(null == points_){
resetPoints();
}
}
private static Vector2 calcUV(RectTransform rectTrans, Sprite sprite, Vector2 position)
{
Rect rect = rectTrans.rect;
Vector2 uv = new Vector2(position.x - rect.xMin, position.y-rect.yMin);
if(1.0e-4f < rect.width) {
uv.x /= rect.width;
}
if(1.0e-4f < rect.height) {
uv.y /= rect.height;
}
return uv;
}
public void resetPointsSmaller()
{
RectTransform rectTrans = GetComponent<RectTransform>();
Rect rect = rectTrans.rect;
points_ = new Vector2[4];
float w = rect.width * 0.05f;
float h = rect.height * 0.05f;
points_[0] = new Vector2(rect.xMin+w, rect.yMax-h);
points_[1] = new Vector2(rect.xMax-w, rect.yMax-h);
points_[2] = new Vector2(rect.xMax-w, rect.yMin+h);
points_[3] = new Vector2(rect.xMin+w, rect.yMin+h);
}
public void resetPoints()
{
RectTransform rectTrans = GetComponent<RectTransform>();
points_ = new Vector2[4];
points_[0] = new Vector2(rectTrans.rect.xMin, rectTrans.rect.yMax);
points_[1] = new Vector2(rectTrans.rect.xMax, rectTrans.rect.yMax);
points_[2] = new Vector2(rectTrans.rect.xMax, rectTrans.rect.yMin);
points_[3] = new Vector2(rectTrans.rect.xMin, rectTrans.rect.yMin);
}
protected override void OnPopulateMesh(UnityEngine.UI.VertexHelper toFill)
{
if(null == points_) {
resetPoints();
}
if(points_.Length < 3) {
return;
}
int numPoints = points_.Length;
RectTransform rectTrans = GetComponent<RectTransform>();
UIVertex vertex = new UIVertex();
Vector2 localOffset;
localOffset.x = rectTrans.pivot.x * rectTrans.rect.width;
localOffset.y = rectTrans.pivot.y * rectTrans.rect.height;
Vector2 isize;
Vector2 local;
toFill.Clear();
if(null == sprite) {
isize.x = (1.0e-4f < rectTrans.rect.width) ? 1.0f / rectTrans.rect.width : 1.0f;
isize.y = (1.0e-4f < rectTrans.rect.height) ? 1.0f / rectTrans.rect.height : 1.0f;
for(int i = 0; i < numPoints; ++i) {
vertex.position = points_[i];
vertex.color = this.color;
local = points_[i] + localOffset;
vertex.uv0.x = (local.x) * isize.x;
vertex.uv0.y = (local.y) * isize.y;
toFill.AddVert(vertex);
}
for(int i = 2; i < numPoints; ++i) {
toFill.AddTriangle(0, i - 1, i);
}
return;
}
//Debug.Log("OnPopulateMesh:" + gameObject.name + " " + sprite.packed);
isize.x = (1 < sprite.texture.width) ? 1.0f / sprite.texture.width : 1.0f;
isize.y = (1 < sprite.texture.height) ? 1.0f / sprite.texture.height : 1.0f;
Vector2 localToSprite;
localToSprite.x = sprite.rect.width/rectTrans.rect.width;
localToSprite.y = sprite.rect.height/rectTrans.rect.height;
//Debug.Log("sprite.packed " + sprite.packed);
//Debug.Log("sprite.textureRectOffset " + sprite.textureRectOffset);
//Debug.Log("sprite.textureRect " + sprite.textureRect);
//Debug.Log("sprite.rect " + sprite.rect);
//Debug.Log("sprite.pivot " + sprite.pivot);
//Debug.Log("RectTransform.rect " + rectTrans.rect);
//Debug.Log("RectTransform.pivot " + rectTrans.pivot);
if(sprite.packed) {
localOffset.x += sprite.textureRect.xMin;
localOffset.y += sprite.textureRect.yMin;
for(int i = 0; i < numPoints; ++i) {
vertex.position = points_[i];
vertex.color = this.color;
local = points_[i] + localOffset;
local.x *= localToSprite.x;
local.y *= localToSprite.y;
vertex.uv0.x = (local.x) * isize.x;
vertex.uv0.y = (local.y) * isize.y;
toFill.AddVert(vertex);
}
} else {
for(int i = 0; i < numPoints; ++i) {
vertex.position = points_[i];
vertex.color = this.color;
local = points_[i] + localOffset;
local.x *= localToSprite.x;
local.y *= localToSprite.y;
vertex.uv0.x = (local.x) * isize.x;
vertex.uv0.y = (local.y) * isize.y;
toFill.AddVert(vertex);
}
}
for(int i = 2; i < numPoints; ++i) {
toFill.AddTriangle(0, i-1, i);
}
}
// Implements ICanvasRaycastFilter
public override bool IsRaycastLocationValid(Vector2 screenPoint, Camera eventCamera)
{
if(!RectTransformUtility.RectangleContainsScreenPoint(rectTransform, screenPoint, eventCamera)) {
return true;
}
Vector2 localPoint;
if(!RectTransformUtility.ScreenPointToLocalPointInRectangle(rectTransform, screenPoint, eventCamera, out localPoint)){
return false;
}
int i0=points_.Length-1, i1=0;
bool yflag0 = (localPoint.y <= points_[i0].y);
bool flag = false;
for(; i1<points_.Length; i0=i1, ++i1) {
bool yflag1 = (localPoint.y <= points_[i1].y);
if(yflag0 != yflag1) {
if(((localPoint.x-points_[i0].x)*(points_[i1].y - points_[i0].y) <= (points_[i1].x - points_[i0].x) * (localPoint.y - points_[i0].y)) == yflag1) {
flag = !flag;
}
}
yflag0 = yflag1;
}//for(; i1
return flag;
}
}
}
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