96 lines
2.9 KiB
Kotlin
96 lines
2.9 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.draw.Drawer
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import org.openrndr.extensions.SingleScreenshot
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import org.openrndr.extra.compositor.compose
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import org.openrndr.extra.compositor.draw
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import org.openrndr.extra.compositor.layer
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import org.openrndr.extra.compositor.post
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import org.openrndr.extra.fx.blur.ApproximateGaussianBlur
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import org.openrndr.math.Vector3
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import kotlin.random.Random
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/**
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* Compositor demo showing 3 layers of moving items
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* with a different amount of blur in each layer,
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* simulating depth of field
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*/
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suspend fun main() = application {
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configure {
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width = 900
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height = 900
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}
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program {
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// -- this block is for automation purposes only
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if (System.getProperty("takeScreenshot") == "true") {
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extend(SingleScreenshot()) {
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this.outputFile = System.getProperty("screenshotPath")
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}
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}
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data class Item(var pos: Vector3, val color: ColorRGBa) {
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fun draw(drawer: Drawer) {
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pos -= Vector3(pos.z * 3.0, 0.0, 0.0)
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if (pos.x < -260.0) {
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pos = Vector3(width + 260.0, pos.y, pos.z)
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}
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drawer.fill = null
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drawer.stroke = color
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drawer.strokeWeight = 2.0 + 30.0 * pos.z * pos.z
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drawer.circle(pos.xy, 10.0 + 250.0 * pos.z * pos.z)
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}
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}
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val items = List(50) {
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val pos = Vector3(Random.nextDouble() * width,
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Random.nextDouble(0.3, 0.7) * height,
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Random.nextDouble())
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Item(pos, ColorRGBa.PINK.shade(Random.nextDouble(0.2, 0.9)))
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}.sortedBy { it.pos.z }
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val composite = compose {
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layer {
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draw {
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drawer.stroke = null
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items.filter { it.pos.z < 0.33 }.forEach {
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it.draw(drawer)
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}
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}
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post(ApproximateGaussianBlur()) {
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window = 25
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sigma = 5.00
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}
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}
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layer {
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draw {
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drawer.stroke = null
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items.filter { it.pos.z in 0.33..0.66 }.forEach {
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it.draw(drawer)
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}
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}
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}
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layer {
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draw {
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drawer.stroke = null
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items.filter { it.pos.z > 0.66 }.forEach {
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it.draw(drawer)
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}
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}
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post(ApproximateGaussianBlur()) {
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window = 25
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sigma = 5.00
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}
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}
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}
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extend {
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drawer.clear(rgb(0.2))
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composite.draw(drawer)
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}
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}
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}
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