public static void Silhouette(SplineSys spline, MatrixWorld strokeMatrix, MatrixWorld dstMatrix)
/// Fills all pixels within closed spline with 1, and all outer pixels with 0
/// Pixels directly in the spline are filled with 0.5
/// Requires the matrix with line stroked. StrokeMatrix and DstMatrix could be the same
{
if (strokeMatrix != dstMatrix)
{
dstMatrix.Fill(strokeMatrix);
}
//and then using dst matrix only
CoordRect rect = dstMatrix.rect;
Coord min = rect.Min; Coord max = rect.Max;
for (int x = min.x; x < max.x; x++)
{
for (int z = min.z; z < max.z; z++)
{
int pos = (z - rect.offset.z) * rect.size.x + x - rect.offset.x;
if (dstMatrix.arr[pos] < 0.01f) //free from stroke and fill
{
Vector3 pixelPos = dstMatrix.PixelToWorld(x, z);
bool handness = spline.Handness(pixelPos) >= 0;
dstMatrix.PaintBucket(new Coord(x, z), handness ? 0.75f : 0.25f);
}
}
}
}
public static void DrawKnob(SplineSys sys, int l, int n)
{
using (Cell.LineStd) Draw.DualLabel("Number", "Line:" + l.ToString() + ", Node:" + n.ToString());
using (Cell.LineStd) Draw.Toggle(n == 0, "Is First");
using (Cell.LineStd) Draw.Toggle(n == sys.lines[l].segments.Length, "Is Last");
SplineEditor.Knob knob = sys.lines[l].GetKnob(n);
using (Cell.LinePx(0))
{
using (Cell.LineStd) Draw.Field(ref knob.pos, "Position");
//using (Cell.LineStd) Draw.DualLabel("In Dir", knob.inDir.ToString());
//using (Cell.LineStd) Draw.DualLabel("Out Dir", knob.outDir.ToString());
using (Cell.LineStd) Draw.Field(ref knob.inDir, "In Dir");
using (Cell.LineStd) Draw.Field(ref knob.outDir, "Out Dir");
using (Cell.LineStd) Draw.Field(ref knob.type, "Type");
if (Cell.current.valChanged)
{
sys.lines[l].SetKnob(knob, n);
sys.lines[l].Update();
SceneView.lastActiveSceneView?.Repaint();
}
}
}
public static SplineSys CreateDefault()
{
SplineSys spline = new SplineSys();
spline.lines = new Line[] { new Line() };
spline.lines[0].segments = new Segment[] { new Segment(new Vector3(0, 0, 0), new Vector3(1, 0, 0)) };
return(spline);
}
public static void Silhouette(SplineSys spline, MatrixWorld matrix)
/// Fills all pixels within closed spline with 1, and all outer pixels with 0
/// Pixels directly in the spline are filled with 0.5
/// Internally strokes matrix first
{
Stroke(spline, matrix, white: true, intensity: 0.5f, antialiased: false, padOnePixel: false);
Silhouette(spline, matrix, matrix);
}
public SplineSys(SplineSys src)
{
CopyLinesFrom(src.lines);
guiDrawNodes = src.guiDrawNodes;
guiDrawSegments = src.guiDrawSegments;
guiDrawDots = src.guiDrawDots;
guiDotsCount = src.guiDotsCount;
guiDotsEquidist = src.guiDotsEquidist;
}
public static void Stroke(SplineSys spline, MatrixWorld matrix,
bool white = false, float intensity = 1,
bool antialiased = false, bool padOnePixel = false)
/// Draws a line on matrix
/// White will fill the line with 1, when disabled it will use spline height
/// PaddedOnePixel works similarly to AA, but fills border pixels with full value (to create main tex for the mask)
{
foreach (Line line in spline.lines)
{
for (int s = 0; s < line.segments.Length; s++)
{
int numSteps = (int)(line.segments[s].length / matrix.PixelSize.x * 0.1f + 1);
Vector3 startPos = line.segments[s].start.pos;
Vector3 prevCoord = matrix.WorldToPixelInterpolated(startPos.x, startPos.z);
float prevHeight = white ? intensity : (startPos.y / matrix.worldSize.y);
for (int i = 0; i < numSteps; i++)
{
float percent = numSteps != 1 ? 1f * i / (numSteps - 1) : 1;
Vector3 pos = line.segments[s].GetPoint(percent);
float posHeight = white ? intensity : (pos.y / matrix.worldSize.y);
pos = matrix.WorldToPixelInterpolated(pos.x, pos.z);
matrix.Line(
new Vector2(prevCoord.x, prevCoord.z),
new Vector2(pos.x, pos.z),
prevHeight,
posHeight,
antialised: antialiased,
paddedOnePixel: padOnePixel,
endInclusive: i == numSteps - 1);
prevCoord = pos;
prevHeight = posHeight;
}
}
}
}
/*UI ui = new UI();
* SplineObject so;
*
* public void OnSceneGUI ()
* {
* if (so == null) so = (SplineObject)target;
* ui.DrawInspector(() => DrawSpline(so.splineSys));
* }*/
public static void DrawSpline(SplineSys sys)
{
using (Cell.LineStd)
using (new Draw.FoldoutGroup(ref guiDisplay, "Display", isLeft: true))
if (guiDisplay)
{
using (Cell.LineStd) Draw.ToggleLeft(ref sys.guiDrawNodes, "Draw Nodes");
using (Cell.LineStd) Draw.ToggleLeft(ref sys.guiDrawSegments, "Draw Segments");
using (Cell.LineStd) Draw.ToggleLeft(ref sys.guiDrawDots, "Draw Dots");
using (Cell.LineStd) Draw.Field(ref sys.guiDotsCount, "Dots Count");
using (Cell.LineStd) Draw.Toggle(ref sys.guiDotsEquidist, "Dots Equidist");
if (Cell.current.valChanged)
{
SceneView.lastActiveSceneView?.Repaint();
}
}
Cell.EmptyLinePx(4);
using (Cell.LineStd)
using (new Draw.FoldoutGroup(ref guiLines, "Lines", isLeft: true))
if (guiLines)
{
using (Cell.LineStd) Draw.DualLabel("Lines Count", sys.lines.Length.ToString());
if (SplineEditor.selectedKnobs.Count == 1)
{
(int l, int n) = SplineEditor.selectedKnobs.Any();
Line line = sys.lines[l];
using (Cell.LineStd) Draw.DualLabel("Length", line.length.ToString());
using (Cell.LineStd) Draw.DualLabel("Segments", line.segments.Length.ToString());
using (Cell.LineStd) Draw.Toggle(ref line.looped, "Looped");
using (Cell.LineStd)
if (Draw.Button("Remove"))
{
sys.RemoveLine(l);
SplineEditor.selectedKnobs.Clear();
SplineEditor.dispSelectedKnobs.Clear();
}
}
using (Cell.LineStd)
if (Draw.Button("Add"))
{
sys.AddLine(
SceneView.lastActiveSceneView.pivot - new Vector3(SceneView.lastActiveSceneView.cameraDistance / 10, 0, 0),
SceneView.lastActiveSceneView.pivot + new Vector3(SceneView.lastActiveSceneView.cameraDistance / 10, 0, 0));
}
}
Cell.EmptyLinePx(4);
using (Cell.LineStd)
using (new Draw.FoldoutGroup(ref guiKnobs, "Knobs", isLeft: true))
if (guiKnobs)
{
using (Cell.LineStd) Draw.DualLabel("Selected", SplineEditor.selectedKnobs.Count.ToString());
if (SplineEditor.selectedKnobs.Count == 1)
{
Cell.EmptyLinePx(4);
(int l, int n) = SplineEditor.selectedKnobs.Any();
using (Cell.LinePx(0)) DrawKnob(sys, l, n);
}
}
Cell.EmptyLinePx(4);
using (Cell.LineStd)
if (Draw.Button("Update"))
{
sys.Update();
SceneView.lastActiveSceneView?.Repaint();
}
}