87 lines
3.1 KiB
Kotlin
87 lines
3.1 KiB
Kotlin
package gradients
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import org.openrndr.application
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import org.openrndr.color.ColorRGBa
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import org.openrndr.extra.shadestyles.fills.SpreadMethod
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import org.openrndr.extra.shadestyles.fills.gradients.gradient
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import org.openrndr.math.Vector2
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import kotlin.math.cos
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/**
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* Demonstrates how to create 4 animated gradient shade-styles with 5 colors:
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* - a linear gradient
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* - a stellar gradient
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* - a radial gradient
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* - a linear gradient with `SpreadMethod.REPEAT`
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* Each gradient style has different adjustable attributes.
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*/
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fun main() {
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application {
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configure {
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width = 720
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height = 720
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}
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program {
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extend {
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drawer.shadeStyle = gradient<ColorRGBa> {
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stops[0.0] = ColorRGBa.RED
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stops[0.1] = ColorRGBa.GREEN
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stops[0.2] = ColorRGBa.PINK
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stops[0.9] = ColorRGBa.WHITE
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stops[1.0] = ColorRGBa.BLACK
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linear {
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start = Vector2(0.1, 0.1).rotate(seconds * 36.0, Vector2(0.5, 0.5))
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end = Vector2(0.9, 0.9).rotate(seconds * 36.0, Vector2(0.5, 0.5))
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}
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}
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drawer.rectangle(0.0, 0.0, 360.0, 360.0)
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drawer.shadeStyle = gradient<ColorRGBa> {
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stops[0.0] = ColorRGBa.RED
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stops[0.1] = ColorRGBa.GREEN
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stops[0.2] = ColorRGBa.PINK
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stops[0.9] = ColorRGBa.WHITE
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stops[1.0] = ColorRGBa.BLACK
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spreadMethod = SpreadMethod.REFLECT
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stellar {
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radius = (cos(seconds) * 0.25 + 0.5) * 0.5
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sharpness = 0.5
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sides = 6
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rotation = seconds * 36.0
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}
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}
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drawer.rectangle(360.0, 0.0, 360.0, 360.0)
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drawer.shadeStyle = gradient<ColorRGBa> {
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stops[0.0] = ColorRGBa.RED
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stops[0.1] = ColorRGBa.GREEN
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stops[0.2] = ColorRGBa.PINK
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stops[0.9] = ColorRGBa.WHITE
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stops[1.0] = ColorRGBa.BLACK
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spreadMethod = SpreadMethod.REFLECT
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radial {
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radius = (cos(seconds) * 0.25 + 0.5) * 0.5
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}
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}
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drawer.rectangle(360.0, 360.0, 360.0, 360.0)
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drawer.shadeStyle = gradient<ColorRGBa> {
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stops[0.0] = ColorRGBa.RED
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stops[0.1] = ColorRGBa.GREEN
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stops[0.2] = ColorRGBa.PINK
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stops[0.9] = ColorRGBa.WHITE
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stops[1.0] = ColorRGBa.BLACK
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spreadMethod = SpreadMethod.REPEAT
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linear {
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start = Vector2(0.45, 0.45).rotate(seconds * 36.0)
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end = Vector2(0.55, 0.55).rotate(seconds * 36.0)
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}
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}
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drawer.rectangle(0.0, 360.0, 360.0, 360.0)
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}
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}
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}
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} |