private void skglControl1_PaintSurface(object sender, SkiaSharp.Views.Desktop.SKPaintGLSurfaceEventArgs e)
{
var surface = e.Surface;
surface.Canvas.Clear(SKColor.Parse("#003366"));
for (int i = 0; i < lineCount; i++)
{
var paint = new SKPaint
{
Color = new SKColor(
red: (byte)rand.Next(255),
green: (byte)rand.Next(255),
blue: (byte)rand.Next(255),
alpha: (byte)rand.Next(255)),
StrokeWidth = rand.Next(1, 10),
IsAntialias = true
};
surface.Canvas.DrawLine(
x0: rand.Next(skglControl1.Width),
y0: rand.Next(skglControl1.Height),
x1: rand.Next(skglControl1.Width),
y1: rand.Next(skglControl1.Height),
paint: paint);
}
}
private void SkglControl1_PaintSurface(object sender, SkiaSharp.Views.Desktop.SKPaintGLSurfaceEventArgs e)
{
var surface = e.Surface;
surface.Canvas.Clear(SKColor.Parse("#003366"));
var paint = new SKPaint
{
Style = SKPaintStyle.Stroke,
Color = SKColors.White,
StrokeWidth = 1,
IsAntialias = true
};
for (int i = 0; i < testCorner.Points.Count; i++)
{
double fracToEnd = (double)i / (testCorner.Points.Count - 1);
paint.Color = new SKColor(255, 255, 255, (byte)(255 * fracToEnd));
if (fracToEnd == 1)
{
paint.Style = SKPaintStyle.Fill;
}
var pt = new SKPoint(testCorner.Points[i].X, testCorner.Points[i].Y);
surface.Canvas.DrawCircle(pt, 10f, paint);
}
renderCount += 1;
}
private void skglControl1_PaintSurface(object sender, SkiaSharp.Views.Desktop.SKPaintGLSurfaceEventArgs e)
{
Renderer.Render(e.Surface.Canvas, field,
tails: TailsCheckbox.Checked,
ranges: RangeCheckbox.Checked,
direction: DirectionCheckbox.Checked);
}
private void skglControl1_PaintSurface(object sender, SkiaSharp.Views.Desktop.SKPaintGLSurfaceEventArgs e)
{
var renderer = new SkiaRenderer(e.Surface.Canvas);
Field.Render(renderer, polys, (float)nudWidth.Value, cbFade.Checked);
renderCount += 1;
}
private void skglControl1_PaintSurface(object sender, SkiaSharp.Views.Desktop.SKPaintGLSurfaceEventArgs e)
{
ICanvas canvas = new SkiaCanvas()
{
Canvas = e.Surface.Canvas
};
ActiveModel.Draw(canvas, skglControl1.Width, skglControl1.Height);
}
private void GlControl_PaintSurface(object sender, SkiaSharp.Views.Desktop.SKPaintGLSurfaceEventArgs e)
{
var skCanvas = e.Surface.Canvas;
skCanvas.Clear(new SkiaSharp.SKColor(255, 255, 255));
using (var paint = new SKPaint())
{
paint.TextSize = 36.0f;
paint.IsAntialias = true;
paint.Color = (SKColor)0xFF4281A4;
paint.IsStroke = false;
skCanvas.DrawText("PixelFarm+SkiaSharp GLCanvas", 20, 64.0f, paint);
paint.StrokeWidth = 3;
skCanvas.DrawLine(0, 0, 100, 80, paint);
}
}
private void skglControl1_PaintSurface(object sender, SkiaSharp.Views.Desktop.SKPaintGLSurfaceEventArgs e)
{
// perform the drawing
e.Surface.Canvas.Clear(SKColors.Black);
var starColor = new SKColor(255, 255, 255, starAlpha);
var starPaint = new SKPaint()
{
IsAntialias = true, Color = starColor
};
foreach (var star in field.GetStars())
{
float xPixel = (float)star.x * skglControl1.Width;
float yPixel = (float)star.y * skglControl1.Height;
float radius = (float)star.size - 1;
var point = new SKPoint(xPixel, yPixel);
e.Surface.Canvas.DrawCircle(point, radius, starPaint);
}
}
private void skglControl1_PaintSurface(object sender, SkiaSharp.Views.Desktop.SKPaintGLSurfaceEventArgs e)
{
if (field is null)
{
return;
}
stopwatch.Restart();
using (var renderer = new SkiaSharpRenderer(e.Surface.Canvas))
{
field.Render(renderer);
}
stopwatch.Stop();
double elapsedSec = (double)stopwatch.ElapsedTicks / Stopwatch.Frequency;
Text = $"Constellation with SkiaSharp and OpenGL (Injected) {1 / elapsedSec:0.00} FPS";
}
private void GlControl_PaintSurface(object sender, SkiaSharp.Views.Desktop.SKPaintGLSurfaceEventArgs e)
{
if (exampleBase != null)
{
painter.Canvas = e.Surface.Canvas;
exampleBase.Draw(painter);
}
//var skCanvas = e.Surface.Canvas;
//skCanvas.Clear(new SkiaSharp.SKColor(255, 255, 255));
//using (var paint = new SKPaint())
//{
// paint.TextSize = 36.0f;
// paint.IsAntialias = true;
// paint.Color = (SKColor)0xFF4281A4;
// paint.IsStroke = false;
// skCanvas.DrawText("PixelFarm+SkiaSharp", 20, 64.0f, paint);
// paint.StrokeWidth = 3;
// skCanvas.DrawLine(0, 0, 100, 80, paint);
//}
}
private void skglControl1_PaintSurface(object sender, SkiaSharp.Views.Desktop.SKPaintGLSurfaceEventArgs e)
{
using (var renderer = new SkiaSharpRenderer(e.Surface.Canvas, skglControl1.Width, skglControl1.Height))
Plot.Render(renderer, true, false);
}
private void skglControl1_PaintSurface(object sender, SkiaSharp.Views.Desktop.SKPaintGLSurfaceEventArgs e)
{
if (field is null)
{
return;
}
stopwatch.Restart();
var canvas = e.Surface.Canvas;
// clear background
canvas.Clear(SKColor.Parse("#003366"));
// draw stars
float starRadius = 3;
SKPaint paint = new SKPaint()
{
IsAntialias = true, Color = SKColors.White
};
foreach (var star in field.Stars)
{
var rect = new RectangleF(
x: star.X - starRadius,
y: star.Y - starRadius,
width: starRadius * 2,
height: starRadius * 2
);
var pt = new SKPoint(star.X, star.Y);
e.Surface.Canvas.DrawCircle(pt, starRadius, paint);
}
// draw lines connecting close stars
double connectDistance = 100;
foreach (var star1 in field.Stars)
{
foreach (var star2 in field.Stars)
{
double dX = Math.Abs(star1.X - star2.X);
double dY = Math.Abs(star1.Y - star2.Y);
if (dX > connectDistance || dY > connectDistance)
{
continue;
}
double distance = Math.Sqrt(dX * dX + dY * dY);
int alpha = (int)(255 - distance / connectDistance * 255);
alpha = Math.Min(alpha, 255);
alpha = Math.Max(alpha, 0);
paint.Color = new SKColor(255, 255, 255, (byte)alpha);
if (distance < connectDistance)
{
canvas.DrawLine(star1.X, star1.Y, star2.X, star2.Y, paint);
}
}
}
stopwatch.Stop();
double elapsedSec = (double)stopwatch.ElapsedTicks / Stopwatch.Frequency;
Text = $"Constellation with SkiaSharp and OpenGL (Simple) {1 / elapsedSec:0.00} FPS";
}
private void skglControl1_PaintSurface(object sender, SkiaSharp.Views.Desktop.SKPaintGLSurfaceEventArgs e)
{
Field.Draw(e.Surface.Canvas);
}
