void OnSceneGUI(SceneView sceneView)
{
RaycastHit hit;
Vector3 mousePosition = Event.current.mousePosition;
// ScreenPointToRayで期待しているyの位置を補正する。
mousePosition.y = sceneView.camera.pixelHeight - mousePosition.y;
var ray = sceneView.camera.ScreenPointToRay(mousePosition);
if (Event.current.isMouse && Event.current.type == EventType.mouseDown)
{
if (!init)
{
setup();
init = true;
}
// 現状meshが一個しかないので判定を省きつつ、meshに対してrayを打つ。
if (RXLookingGlass.IntersectRayMesh(ray, mesh, transform.localToWorldMatrix, out hit))
{
// hit.pointはこの場合meshでのローカル座標になる。
Debug.LogFormat("hit at {0}(local position)", hit.point);
// あとは頂点を塗るだけ
paint(hit.point);
}
}
}
private void OnSceneGUI(SceneView sceneView)
{
// 当前屏幕坐标，左上角是（0，0）右下角（camera.pixelWidth，camera.pixelHeight）
Vector2 mousePosition = Event.current.mousePosition;
// Retina 屏幕需要拉伸值
float mult = 1;
#if UNITY_5_4_OR_NEWER
mult = EditorGUIUtility.pixelsPerPoint;
#endif
// 转换成摄像机可接受的屏幕坐标，左下角是（0，0，0）右上角是（camera.pixelWidth，camera.pixelHeight，0）
mousePosition.y = sceneView.camera.pixelHeight - mousePosition.y * mult;
mousePosition.x *= mult;
// 近平面往里一些，才能看得到摄像机里的位置
Vector3 fakePoint = mousePosition;
fakePoint.z = 20;
Vector3 point = sceneView.camera.ScreenToWorldPoint(fakePoint);
Ray ray = sceneView.camera.ScreenPointToRay(mousePosition);
MeshFilter[] componentsInChildren = GameObject.FindObjectsOfType <MeshFilter>();
float num = float.PositiveInfinity;
foreach (MeshFilter meshFilter in componentsInChildren)
{
Mesh sharedMesh = meshFilter.sharedMesh;
RaycastHit hit;
if (sharedMesh &&
RXLookingGlass.IntersectRayMesh(ray, sharedMesh, meshFilter.transform.localToWorldMatrix, out hit) &&
hit.distance < num)
{
point = hit.point;
num = hit.distance;
}
}
//Handles.SphereCap(0, point, Quaternion.identity, 2);
SphereCapPos(point);
// 刷新界面，才能让球一直跟随
sceneView.Repaint();
HandleUtility.Repaint();
}