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[orx-jumpflood] fix readme examples (use filter) (#320)

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This commit is contained in:
Abe Pazos
2023-06-24 05:55:25 +00:00
committed by GitHub
parent 9412e41c3d
commit 7a4f0b163b
1 changed files with 14 additions and 12 deletions
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26
orx-jumpflood/README.md
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@@ -16,10 +16,10 @@ the distance in red and the original bitmap in green.
```kotlin
import org.openrndr.application
import org.openrndr.draw.*
import org.openrndr.extra.fx.blur.ApproximateGaussianBlur
import org.openrndr.extra.jumpfill.DistanceField
import org.openrndr.extra.jumpfill.Threshold
import org.openrndr.extra.jumpfill.distanceFieldFromBitmap
import org.openrndr.ffmpeg.VideoPlayerFFMPEG
import org.openrndr.filter.blur.ApproximateGaussianBlur
fun main() = application {
configure {
@@ -34,7 +34,8 @@ fun main() = application {
val thresholdFilter = Threshold()
val thresholded = colorBuffer(width, height)
val distanceField = colorBuffer(width, height, type = ColorType.FLOAT32)
val distanceField = DistanceField()
val distanceFieldBuffer = colorBuffer(width, height, type = ColorType.FLOAT32)
val videoCopy = renderTarget(width, height) {
colorBuffer()
@@ -58,21 +59,21 @@ fun main() = application {
thresholdFilter.threshold = 0.5
thresholdFilter.apply(blurred, thresholded)
distanceFieldFromBitmap(thresholded, result = distanceField)
distanceField.apply(thresholded, distanceFieldBuffer)
drawer.isolated {
// -- use a shadestyle to visualize the distance field
drawer.shadeStyle = shadeStyle {
fragmentTransform = """
float d = x_fill.r;
if (x_fill.g > 0.5) {
if (x_fill.g > 0.5) {
x_fill.rgb = vec3(cos(d) * 0.5 + 0.5);
} else {
x_fill.rgb = 0.25 * vec3(1.0 - (cos(d) * 0.5 + 0.5));
}
"""
}
drawer.image(distanceField)
drawer.image(distanceFieldBuffer)
}
}
}
@@ -88,10 +89,10 @@ x-direction in red, y-direction in green, and the original bitmap in blue.
```kotlin
import org.openrndr.application
import org.openrndr.draw.*
import org.openrndr.extra.fx.blur.ApproximateGaussianBlur
import org.openrndr.extra.jumpfill.DirectionalField
import org.openrndr.extra.jumpfill.Threshold
import org.openrndr.extra.jumpfill.directionFieldFromBitmap
import org.openrndr.ffmpeg.VideoPlayerFFMPEG
import org.openrndr.filter.blur.ApproximateGaussianBlur
fun main() = application {
configure {
@@ -106,7 +107,8 @@ fun main() = application {
val thresholdFilter = Threshold()
val thresholded = colorBuffer(width, height)
val directionField = colorBuffer(width, height, type = ColorType.FLOAT32)
val directionField = DirectionalField()
val directionalFieldBuffer = colorBuffer(width, height, type = ColorType.FLOAT32)
val videoPlayer = VideoPlayerFFMPEG.fromDevice(imageWidth = width, imageHeight = height)
videoPlayer.play()
@@ -131,21 +133,21 @@ fun main() = application {
thresholdFilter.threshold = 0.5
thresholdFilter.apply(blurred, thresholded)
directionFieldFromBitmap(thresholded, result = directionField)
directionField.apply(thresholded, directionalFieldBuffer)
drawer.isolated {
// -- use a shadestyle to visualize the direction field
drawer.shadeStyle = shadeStyle {
fragmentTransform = """
float a = atan(x_fill.r, x_fill.g);
if (x_fill.b > 0.5) {
if (x_fill.b > 0.5) {
x_fill.rgb = vec3(cos(a)*0.5+0.5, 1.0, sin(a)*0.5+0.5);
} else {
x_fill.rgb = vec3(cos(a)*0.5+0.5, 0.0, sin(a)*0.5+0.5);
}
"""
}
drawer.image(directionField)
drawer.image(directionalFieldBuffer)
}
}
}