/// <summary>
/// Draws a single-sided rectangle in 3D.
/// </summary>
/// <param name="area">Determines the position, orientation and size of the rectangle.</param>
/// <param name="size">Uniform scale to apply on top of the existing transform. Primarily used for maintaining
/// handle size regardless of distance from camera.</param>
public static void DrawRect(Rect3 area, float size = 1.0f)
{
Vector3 center = area.Center;
Vector3 axisHorz = area.AxisHorz;
Vector3 axisVert = area.AxisVert;
Internal_DrawRect(ref center, ref axisHorz, ref axisVert, area.ExtentHorz, area.ExtentVert, size);
}
/// <inheritdoc/>
protected internal override void Draw()
{
HandleDrawing.Layer = 1;
HandleDrawing.Transform = Matrix4.TRS(Position, Rotation, Vector3.One);
float handleSize = Handles.GetHandleSize(EditorApplication.SceneViewCamera, position);
// Draw 1D arrows
if (xAxis.State == HandleSlider.StateType.Active)
{
HandleDrawing.Color = Color.White;
}
else if (xAxis.State == HandleSlider.StateType.Hover)
{
HandleDrawing.Color = Color.BansheeOrange;
}
else
{
HandleDrawing.Color = Color.Red;
}
Vector3 xConeStart = Vector3.XAxis * (1.0f - CONE_HEIGHT);
HandleDrawing.DrawLine(Vector3.Zero, xConeStart, handleSize);
HandleDrawing.DrawCone(xConeStart, Vector3.XAxis, CONE_HEIGHT, CONE_RADIUS, handleSize);
if (yAxis.State == HandleSlider.StateType.Active)
{
HandleDrawing.Color = Color.White;
}
else if (yAxis.State == HandleSlider.StateType.Hover)
{
HandleDrawing.Color = Color.BansheeOrange;
}
else
{
HandleDrawing.Color = Color.Green;
}
Vector3 yConeStart = Vector3.YAxis * (1.0f - CONE_HEIGHT);
HandleDrawing.DrawLine(Vector3.Zero, yConeStart, handleSize);
HandleDrawing.DrawCone(yConeStart, Vector3.YAxis, CONE_HEIGHT, CONE_RADIUS, handleSize);
if (zAxis.State == HandleSlider.StateType.Active)
{
HandleDrawing.Color = Color.White;
}
else if (zAxis.State == HandleSlider.StateType.Hover)
{
HandleDrawing.Color = Color.BansheeOrange;
}
else
{
HandleDrawing.Color = Color.Blue;
}
Vector3 zConeStart = Vector3.ZAxis * (1.0f - CONE_HEIGHT);
HandleDrawing.DrawLine(Vector3.Zero, zConeStart, handleSize);
HandleDrawing.DrawCone(zConeStart, Vector3.ZAxis, CONE_HEIGHT, CONE_RADIUS, handleSize);
// Draw 2D planes
Color planeNormal = new Color(1.0f, 1.0f, 1.0f, 0.2f);
Color planeHover = new Color(1.0f, 1.0f, 1.0f, 0.4f);
Color planeActive = new Color(1.0f, 1.0f, 1.0f, 0.6f);
Vector3 planeXOffset = Vector3.XAxis * 0.3f;
Vector3 planeYOffset = Vector3.YAxis * 0.3f;
Vector3 planeZOffset = Vector3.ZAxis * 0.3f;
//// XY plane
HandleDrawing.Color = Color.Blue;
HandleDrawing.DrawLine(planeXOffset, planeXOffset + planeYOffset, handleSize);
HandleDrawing.DrawLine(planeYOffset, planeYOffset + planeXOffset, handleSize);
if (xyPlane.State == HandleSlider.StateType.Active)
{
HandleDrawing.Color = Color.Blue * planeActive;
}
else if (xyPlane.State == HandleSlider.StateType.Hover)
{
HandleDrawing.Color = Color.Blue * planeHover;
}
else
{
HandleDrawing.Color = Color.Blue * planeNormal;
}
Rect3 xyPlaneArea = new Rect3(
(planeXOffset + planeYOffset) * 0.5f,
new Vector3[] { Vector3.XAxis, Vector3.YAxis },
new float[] { 0.15f, 0.15f });
HandleDrawing.DrawRect(xyPlaneArea, handleSize);
//// YZ plane
HandleDrawing.Color = Color.Red;
HandleDrawing.DrawLine(planeYOffset, planeYOffset + planeZOffset, handleSize);
HandleDrawing.DrawLine(planeZOffset, planeZOffset + planeYOffset, handleSize);
if (yzPlane.State == HandleSlider.StateType.Active)
{
HandleDrawing.Color = Color.Red * planeActive;
}
else if (yzPlane.State == HandleSlider.StateType.Hover)
{
HandleDrawing.Color = Color.Red * planeHover;
}
else
{
HandleDrawing.Color = Color.Red * planeNormal;
}
Rect3 yzPlaneArea = new Rect3(
(planeYOffset + planeZOffset) * 0.5f,
new Vector3[] { Vector3.YAxis, Vector3.ZAxis },
new float[] { 0.15f, 0.15f });
HandleDrawing.DrawRect(yzPlaneArea, handleSize);
//// ZX plane
HandleDrawing.Color = Color.Green;
HandleDrawing.DrawLine(planeZOffset, planeZOffset + planeXOffset, handleSize);
HandleDrawing.DrawLine(planeXOffset, planeXOffset + planeZOffset, handleSize);
if (zxPlane.State == HandleSlider.StateType.Active)
{
HandleDrawing.Color = Color.Green * planeActive;
}
else if (zxPlane.State == HandleSlider.StateType.Hover)
{
HandleDrawing.Color = Color.Green * planeHover;
}
else
{
HandleDrawing.Color = Color.Green * planeNormal;
}
Rect3 zxPlaneArea = new Rect3(
(planeZOffset + planeXOffset) * 0.5f,
new Vector3[] { Vector3.ZAxis, Vector3.XAxis },
new float[] { 0.15f, 0.15f });
HandleDrawing.DrawRect(zxPlaneArea, handleSize);
}