[orx-shapes] Add contour blending

2024-03-18 20:23:45 +01:00
parent d51d303050
commit bdc1dd3bec
6 changed files with 195 additions and 0 deletions
--- a/orx-shapes/src/jvmDemo/kotlin/blend/DemoContourBlend02.kt
+++ b/orx-shapes/src/jvmDemo/kotlin/blend/DemoContourBlend02.kt
@@ -0,0 +1,39 @@
+package blend
+
+import org.openrndr.application
+import org.openrndr.color.ColorRGBa
+import org.openrndr.draw.isolated
+import org.openrndr.extra.shapes.blend.blend
+import org.openrndr.extra.shapes.primitives.grid
+import org.openrndr.extra.shapes.primitives.regularStar
+import org.openrndr.math.Vector2
+import org.openrndr.shape.Circle
+import kotlin.math.PI
+import kotlin.math.cos
+
+/**
+ * Demonstration of non-uniform contour blending
+ */
+fun main() {
+    application {
+        configure {
+            width = 720
+            height = 720
+        }
+        program {
+            val a = Circle(Vector2.ZERO, 90.0).contour
+            val b = regularStar(5, 30.0, 90.0, center = Vector2.ZERO, phase = 180.0)
+            val blend = a.blend(b)
+            extend {
+                drawer.clear(ColorRGBa.WHITE)
+                drawer.fill = ColorRGBa.BLACK
+                drawer.bounds.grid(3, 3).flatten().forEachIndexed { index, it ->
+                    drawer.isolated {
+                        drawer.translate(it.center)
+                        drawer.contour(blend.mix { t -> cos(t * PI * 2.0 + index * PI * 2.0 / 9.0 + seconds) * 0.5 + 0.5 })
+                    }
+                }
+            }
+        }
+    }
+}