41 lines
1.3 KiB
Kotlin
41 lines
1.3 KiB
Kotlin
import org.openrndr.application
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import org.openrndr.color.ColorRGBa
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import org.openrndr.color.rgb
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import org.openrndr.extensions.SingleScreenshot
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import org.openrndr.extra.shadestyles.NPointRadialGradient
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import org.openrndr.shape.Circle
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import kotlin.random.Random
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/**
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* Demonstrate using a multi color radial gradient.
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* The gradient has 5 colors (first and last ones are transparent).
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* Any of the properties can be animated, including colors and points.
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* See DemoNPointLinearGradient01.kt for an example of animated properties.
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*/
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fun main() {
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application {
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program {
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val gradient = NPointRadialGradient(arrayOf(
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ColorRGBa.PINK.opacify(0.0),
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ColorRGBa.PINK, ColorRGBa.WHITE, ColorRGBa.PINK,
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ColorRGBa.PINK.opacify(0.0)
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), arrayOf(0.0, 0.4, 0.5, 0.6, 1.0))
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val circles = List(25) {
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Circle(Random.nextDouble() * drawer.width,
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Random.nextDouble() * drawer.height,
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Random.nextDouble() * 150.0)
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}
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extend {
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drawer.run {
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clear(rgb(0.2))
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shadeStyle = gradient
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fill = ColorRGBa.WHITE
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stroke = null
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circles(circles)
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}
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}
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}
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}
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} |