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sumi
2025-12-24 14:48:18 -06:00
parent 89ba1f8943
commit 1809267363
2 changed files with 44 additions and 7 deletions
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15
main.go
View File

@@ -61,21 +61,21 @@ func main() {
field: imageField,
},
}
sierpinskiLayer := &SierpinskiArrow { dirty: true }
sketch := NewSketch(sourceWidth, sourceHeight)
sierpinskiLayer := &SierpinskiArrow { dirty: true }
sketch.AddColorLayer("background-magenta", rl.Magenta)
//sketch.AddColorLayer("background-black", rl.Black)
sketch.AddColorLayer("background-black", rl.Black)
sketch.AddLayer("field", &FieldLayer{field: field, loColor: rl.NewColor(0, 0, 0, 0), hiColor: rl.Yellow, dirty: true})
contourLayer := NewContourLayer(&sketch, rng, field)
sketch.AddLayer("contours", contourLayer)
sketch.AddLayer("sierpinski-arrowhead", sierpinskiLayer)
//aurora := NewImageLayer("/home/d/Dropbox/photos/Events/2025/Aurora/Photo Nov 11 2025, 9 52 03 PM.jpg")
//sketch.AddLayer("aurora", aurora)
cave := NewImageLayer("/home/d/Dropbox/photos/Events/2025/ Chelsea and James visit Lindell/Photo Nov 29 2025, 5 26 40 PM (29).jpg")
sketch.AddLayer("cave", cave)
// aurora := NewImageLayer("/home/d/Dropbox/photos/Events/2025/Aurora/Photo Nov 11 2025, 9 52 03 PM.jpg")
// sketch.AddLayer("aurora", aurora)
// cave := NewImageLayer("/home/d/Dropbox/photos/Events/2025/ Chelsea and James visit Lindell/Photo Nov 29 2025, 5 26 40 PM (29).jpg")
// sketch.AddLayer("cave", cave)
ports := MakePorts()
ports["sierpinskiArrowAngle"] =
@@ -235,6 +235,8 @@ func (fl *FieldLayer) Update(ctx *RenderCtx) {
}
func (fl *FieldLayer) Draw(ctx *RenderCtx) {
rl.ClearBackground(rl.Blank)
rl.BeginBlendMode(rl.BlendAlphaPremultiply)
for x := range ctx.SourceWidth {
for y := range ctx.SourceHeight {
v := fl.field.Get(float32(x), float32(y))
@@ -242,6 +244,7 @@ func (fl *FieldLayer) Draw(ctx *RenderCtx) {
rl.DrawPixel(x, y, clr)
}
}
rl.EndBlendMode()
fl.dirty = false
}

36
sketch.go
View File

@@ -127,8 +127,40 @@ func (s *Sketch) Draw(ctx *RenderCtx) {
}
viewport := s.CalcViewport(ctx)
outputRect := s.calcOutputRectKeepingAspectRatio(ctx)
x := float32(0)
y := float32(0)
w := outputRect.Width
h := outputRect.Height
rl.PushMatrix()
rl.Translatef(outputRect.X, outputRect.Y, 0)
rl.BeginScissorMode(int32(outputRect.X), int32(outputRect.Y), int32(outputRect.Width), int32(outputRect.Height))
checkSize := float32(25.0)
grey := rl.NewColor(220, 220, 220, 255)
cellX := 0
cellY := 0
for y < h {
x = 0
cellX = 0
for x < w {
c := rl.White
if ((cellX + cellY) & 1) == 1 {
c = grey
}
rl.DrawRectangle(int32(x), int32(y), int32(checkSize), int32(checkSize), c)
x += checkSize
cellX++
}
y += checkSize
cellY++
}
rl.EndScissorMode()
rl.PopMatrix()
rl.BeginBlendMode(rl.BlendAlphaPremultiply)
//rl.BeginBlendMode(rl.BlendAlpha)
rl.BeginTextureMode(s.composite)
rl.ClearBackground(rl.Blank)
//rl.ClearBackground(rl.Black)
@@ -147,6 +179,9 @@ func (s *Sketch) Draw(ctx *RenderCtx) {
if config.bVisible {
b = config.b
}
r = uint8(float32(r) * (float32(config.a) / 255.0))
g = uint8(float32(g) * (float32(config.a) / 255.0))
b = uint8(float32(b) * (float32(config.a) / 255.0))
tint := rl.NewColor(r, g, b, config.a)
rl.DrawTexturePro(instance.texture.Texture, src, dst, rl.Vector2{}, 0, tint)
}
@@ -157,7 +192,6 @@ func (s *Sketch) Draw(ctx *RenderCtx) {
rl.GenTextureMipmaps(&s.composite.Texture)
rl.SetTextureFilter(s.composite.Texture, rl.FilterTrilinear)
outputRect := s.calcOutputRectKeepingAspectRatio(ctx)
rl.DrawTexturePro(s.composite.Texture, viewport, outputRect, rl.Vector2{}, 0, rl.White)
outlineRect := outputRect.ToInt32()