void OnRepaint(SceneView sceneView, Event e)
{
if (primaryTargetBrush != null)
{
// Use a helper method to draw a visualisation of the clipping plane
float largestExtent = GetBounds().GetLargestExtent();
float planeSize = largestExtent * 4f;
// clipPlane.
SabreGraphics.DrawPlane(displayPlane, planePosition, new Color(0f, 1f, 0f, .3f), new Color(1f, 0f, 0f, .3f), planeSize);
// Selected brush green outline
SabreGraphics.GetSelectedBrushMaterial().SetPass(0);
// Draw black lines where the clip plane intersects the brushes
if (!sceneView.camera.orthographic || EditorHelper.GetSceneViewCamera(sceneView) == EditorHelper.SceneViewCamera.Other)
{
GL.Begin(GL.LINES);
GL.Color(Color.black);
foreach (PrimitiveBrush brush in targetBrushes)
{
Polygon[] polygons = brush.GenerateTransformedPolygons();
foreach (Polygon polygon in polygons)
{
Vector3 position1;
Vector3 position2;
if (Polygon.PlanePolygonIntersection(polygon, out position1, out position2, displayPlane))
{
GL.Vertex(position1);
GL.Vertex(position2);
}
}
}
GL.End();
}
if (displayPoint)
{
Camera sceneViewCamera = sceneView.camera;
SabreGraphics.GetVertexMaterial().SetPass(0);
GL.PushMatrix();
GL.LoadPixelMatrix();
GL.Begin(GL.QUADS);
// Draw points in reverse order because we want the precedence to be Red, Green, Blue
GL.Color(Color.blue);
Vector3 target = sceneViewCamera.WorldToScreenPoint(points[2]);
if (target.z > 0)
{
// Make it pixel perfect
target = MathHelper.RoundVector3(target);
SabreGraphics.DrawBillboardQuad(target, 8, 8);
}
GL.Color(Color.green);
target = sceneViewCamera.WorldToScreenPoint(points[1]);
if (target.z > 0)
{
// Make it pixel perfect
target = MathHelper.RoundVector3(target);
SabreGraphics.DrawBillboardQuad(target, 8, 8);
}
GL.Color(Color.red);
target = sceneViewCamera.WorldToScreenPoint(points[0]);
if (target.z > 0)
{
// Make it pixel perfect
target = MathHelper.RoundVector3(target);
SabreGraphics.DrawBillboardQuad(target, 8, 8);
}
GL.End();
GL.PopMatrix();
}
}
// Draw UI specific to this editor
// GUI.backgroundColor = Color.red;
Rect rectangle = new Rect(0, 50, 210, 130);
GUIStyle toolbar = new GUIStyle(EditorStyles.toolbar);
toolbar.normal.background = SabreGraphics.ClearTexture;
toolbar.fixedHeight = rectangle.height;
GUILayout.Window(140006, rectangle, OnToolbarGUI, "", toolbar);
}