45 lines
1.4 KiB
Kotlin
45 lines
1.4 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.ColorType
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import org.openrndr.draw.colorBuffer
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import org.openrndr.draw.loadImage
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import org.openrndr.drawImage
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import org.openrndr.extra.fx.distort.DirectionalDisplace
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import org.openrndr.math.Polar
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/**
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* Demonstrate how to use [DirectionalDisplace].
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*
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* The program draws 12 overlapping translucent circles on the
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* `direction` color buffer to produce new color combinations
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* on the overlapping areas. Those colors specify where the
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* `DirectionalDisplace` effect will sample pixels from.
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*/
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fun main() = application {
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program {
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val displace = DirectionalDisplace()
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val displaced = colorBuffer(width, height)
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val direction = drawImage(width, height, type = ColorType.FLOAT32) {
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clear(ColorRGBa.BLACK)
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for(x in 0 until 6) {
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val offset = Polar(x * 60.0).cartesian
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fill = rgb(offset.y, offset.x, 0.0, 0.3)
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stroke = null
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val pos = bounds.center - offset * 110.0
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circle(pos, 120.0)
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circle(pos, 80.0)
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}
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}
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val image = loadImage("demo-data/images/image-001.png")
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extend {
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displace.distance = 250.0
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displace.apply(arrayOf(image, direction), displaced)
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drawer.image(displaced)
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//drawer.image(direction)
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}
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}
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} |