[orx-shade-styles] Add elliptical gradient support

2025-03-04 08:37:06 +01:00
parent 5bd5421f31
commit e7f11d90b2
7 changed files with 242 additions and 49 deletions
--- a/orx-shade-styles/src/jvmDemo/kotlin/gradients/DemoGradient06.kt
+++ b/orx-shade-styles/src/jvmDemo/kotlin/gradients/DemoGradient06.kt
@@ -0,0 +1,45 @@
+package gradients
+
+import org.openrndr.application
+import org.openrndr.color.ColorRGBa
+import org.openrndr.draw.loadFont
+import org.openrndr.extra.color.presets.BLUE_STEEL
+import org.openrndr.extra.shadestyles.fills.FillUnits
+import org.openrndr.extra.shadestyles.fills.SpreadMethod
+import org.openrndr.extra.shadestyles.fills.gradients.gradient
+import org.openrndr.extra.shapes.primitives.grid
+import kotlin.math.PI
+import kotlin.math.cos
+import kotlin.math.sin
+
+fun main() = application {
+    configure {
+        width = 720
+        height = 720
+    }
+    program {
+        extend {
+            val grid = drawer.bounds.grid(2, 2)
+            drawer.stroke = null
+
+            for ((index, cell) in grid.flatten().withIndex()) {
+                drawer.shadeStyle = gradient<ColorRGBa> {
+                    stops[0.0] = ColorRGBa.RED
+                    stops[0.5] = ColorRGBa.PINK
+                    stops[1.0] = ColorRGBa.WHITE
+
+                    fillUnits = FillUnits.BOUNDS
+                    spreadMethod = SpreadMethod.REPEAT
+                    quantization = 8
+                    elliptic {
+                        radiusX = cos(index / 2.0 * PI + seconds) * 0.45 + 0.5
+                        radiusY = sin(index / 2.0 * PI + seconds) * 0.45 + 0.5
+                    }
+                }
+
+                drawer.rectangle(cell)
+
+            }
+        }
+    }
+}