55 lines
1.7 KiB
Kotlin
55 lines
1.7 KiB
Kotlin
import org.openrndr.application
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import org.openrndr.color.ColorRGBa
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import org.openrndr.draw.ColorType
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import org.openrndr.draw.createEquivalent
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import org.openrndr.drawImage
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import org.openrndr.extra.color.colormatrix.constant
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import org.openrndr.extra.color.colormatrix.tint
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import org.openrndr.extra.jumpfill.DirectionalField
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import org.openrndr.extra.noise.scatter
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import org.openrndr.math.IntVector2
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import org.openrndr.math.Vector3
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import org.openrndr.math.clamp
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/**
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* Create directional distance field and demonstrate signed distance
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*/
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fun main() = 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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val input = drawImage(width, height, contentScale = 1.0) {
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val points = drawer.bounds.scatter(100.0)
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drawer.circles(points, 50.0)
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}
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val filter = DirectionalField()
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val ddf = input.createEquivalent(type = ColorType.FLOAT32)
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filter.signedMagnitude = true
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filter.unitDirection = true
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filter.apply(input, ddf)
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ddf.shadow.download()
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extend {
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val p = (mouse.position * ddf.contentScale).toInt().clamp(
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IntVector2.ZERO,
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IntVector2(width - 1, height - 1)
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)
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val c = ddf.shadow[p.x, p.y]
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val sdf3 = Vector3(c.r, c.g, c.b)
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drawer.drawStyle.colorMatrix = constant(ColorRGBa.WHITE.shade(0.5)) * tint(ColorRGBa.WHITE.shade(0.5))
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drawer.image(ddf)
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drawer.fill = null
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drawer.stroke = ColorRGBa.WHITE
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drawer.circle(mouse.position, sdf3.z / ddf.contentScale)
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drawer.lineSegment(mouse.position, mouse.position + sdf3.xy * sdf3.z)
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}
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}
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} |