This commit is contained in:
Edwin Jakobs
2019-01-26 21:24:58 +01:00
parent a3385abee0
commit 149a7fd183
42 changed files with 2758 additions and 2291 deletions

View File

@@ -1,128 +1,128 @@
package org.openrndr.extra.jumpfill
import org.openrndr.color.ColorRGBa
import org.openrndr.draw.*
import org.openrndr.math.Matrix44
import org.openrndr.math.Vector2
import org.openrndr.resourceUrl
class EncodePoints : Filter(filterShaderFromUrl(resourceUrl("/shaders/gl3/encode-points.frag")))
class JumpFlood : Filter(filterShaderFromUrl(resourceUrl("/shaders/gl3/jumpflood.frag"))) {
var maxSteps: Int by parameters
var step: Int by parameters
}
class PixelDistance : Filter(filterShaderFromUrl(resourceUrl("/shaders/gl3/pixel-distance.frag")))
class ContourPoints : Filter(filterShaderFromUrl(resourceUrl("/shaders/gl3/contour-points.frag")))
class Threshold : Filter(filterShaderFromUrl(resourceUrl("/shaders/gl3/threshold.frag"))) {
var threshold by parameters
init {
threshold = 0.5
}
}
val encodePoints by lazy { EncodePoints() }
val jumpFlood by lazy { JumpFlood() }
val pixelDistance by lazy { PixelDistance() }
val contourPoints by lazy { ContourPoints() }
val threshold by lazy { Threshold() }
class JumpFlooder(val width: Int, val height: Int) {
private val dimension = Math.max(width, height)
private val exp = Math.ceil(Math.log(dimension.toDouble()) / Math.log(2.0)).toInt()
private val squareDim = Math.pow(2.0, exp.toDouble()).toInt()
private val coordinates =
listOf(colorBuffer(squareDim, squareDim, format = ColorFormat.RGB, type = ColorType.FLOAT32),
colorBuffer(squareDim, squareDim, format = ColorFormat.RGB, type = ColorType.FLOAT32))
private val final = renderTarget(width, height) {
colorBuffer(type = ColorType.FLOAT32)
}
val result: ColorBuffer get() = final.colorBuffer(0)
private val square = renderTarget(squareDim, squareDim) {
colorBuffer()
}
private var contourUsed = false
private val thresholded by lazy { colorBuffer(width, height) }
private val edges by lazy { colorBuffer(width, height) }
fun distanceToContour(drawer: Drawer, input: ColorBuffer, thresholdValue: Double = 0.5): ColorBuffer {
threshold.threshold = thresholdValue
threshold.apply(input, thresholded)
contourPoints.apply(thresholded, edges)
contourUsed = true
return jumpFlood(drawer, edges)
}
fun directions(xRange: IntProgression = 0 until width, yRange: IntProgression = 0 until height): Array<List<Vector2>> {
result.shadow.download()
return result.shadow.mapIndexed(xRange, yRange) { _, _, r, g, _, _ -> Vector2(r, g) }
}
fun jumpFlood(drawer: Drawer, input: ColorBuffer): ColorBuffer {
if (input.width != width || input.height != height) {
throw IllegalArgumentException("dimensions mismatch")
}
drawer.isolatedWithTarget(square) {
drawer.background(ColorRGBa.BLACK)
drawer.ortho(square)
drawer.view = Matrix44.IDENTITY
drawer.model = Matrix44.IDENTITY
drawer.image(input)
}
encodePoints.apply(square.colorBuffer(0), coordinates[0])
for (i in 0 until exp) {
jumpFlood.step = i
jumpFlood.apply(coordinates[i % 2], coordinates[(i + 1) % 2])
}
pixelDistance.apply( arrayOf(coordinates[exp % 2], thresholded), coordinates[exp % 2])
drawer.isolatedWithTarget(final) {
drawer.background(ColorRGBa.BLACK)
drawer.ortho(final)
drawer.view = Matrix44.IDENTITY
drawer.model = Matrix44.IDENTITY
drawer.image(coordinates[exp % 2])
}
return result
}
fun destroy(destroyFinal: Boolean = true) {
coordinates.forEach { it.destroy() }
square.colorBuffer(0).destroy()
square.detachColorBuffers()
square.destroy()
if (destroyFinal) {
final.colorBuffer(0).destroy()
}
final.detachColorBuffers()
final.destroy()
if (contourUsed) {
edges.destroy()
thresholded.destroy()
}
}
}
fun jumpFlood(drawer: Drawer, points: ColorBuffer): ColorBuffer {
val jumpFlooder = JumpFlooder(points.width, points.height)
jumpFlooder.jumpFlood(drawer, points)
val result = jumpFlooder.result
jumpFlooder.destroy(false)
return result
package org.openrndr.extra.jumpfill
import org.openrndr.color.ColorRGBa
import org.openrndr.draw.*
import org.openrndr.math.Matrix44
import org.openrndr.math.Vector2
import org.openrndr.resourceUrl
class EncodePoints : Filter(filterShaderFromUrl(resourceUrl("/shaders/gl3/encode-points.frag")))
class JumpFlood : Filter(filterShaderFromUrl(resourceUrl("/shaders/gl3/jumpflood.frag"))) {
var maxSteps: Int by parameters
var step: Int by parameters
}
class PixelDistance : Filter(filterShaderFromUrl(resourceUrl("/shaders/gl3/pixel-distance.frag")))
class ContourPoints : Filter(filterShaderFromUrl(resourceUrl("/shaders/gl3/contour-points.frag")))
class Threshold : Filter(filterShaderFromUrl(resourceUrl("/shaders/gl3/threshold.frag"))) {
var threshold by parameters
init {
threshold = 0.5
}
}
val encodePoints by lazy { EncodePoints() }
val jumpFlood by lazy { JumpFlood() }
val pixelDistance by lazy { PixelDistance() }
val contourPoints by lazy { ContourPoints() }
val threshold by lazy { Threshold() }
class JumpFlooder(val width: Int, val height: Int) {
private val dimension = Math.max(width, height)
private val exp = Math.ceil(Math.log(dimension.toDouble()) / Math.log(2.0)).toInt()
private val squareDim = Math.pow(2.0, exp.toDouble()).toInt()
private val coordinates =
listOf(colorBuffer(squareDim, squareDim, format = ColorFormat.RGB, type = ColorType.FLOAT32),
colorBuffer(squareDim, squareDim, format = ColorFormat.RGB, type = ColorType.FLOAT32))
private val final = renderTarget(width, height) {
colorBuffer(type = ColorType.FLOAT32)
}
val result: ColorBuffer get() = final.colorBuffer(0)
private val square = renderTarget(squareDim, squareDim) {
colorBuffer()
}
private var contourUsed = false
val thresholded by lazy { colorBuffer(width, height) }
val edges by lazy { colorBuffer(width, height) }
fun distanceToContour(drawer: Drawer, input: ColorBuffer, thresholdValue: Double = 0.5): ColorBuffer {
threshold.threshold = thresholdValue
threshold.apply(input, thresholded)
contourPoints.apply(thresholded, edges)
contourUsed = true
return jumpFlood(drawer, edges)
}
fun directions(xRange: IntProgression = 0 until width, yRange: IntProgression = 0 until height): Array<List<Vector2>> {
result.shadow.download()
return result.shadow.mapIndexed(xRange, yRange) { _, _, r, g, _, _ -> Vector2(r, g) }
}
fun jumpFlood(drawer: Drawer, input: ColorBuffer): ColorBuffer {
if (input.width != width || input.height != height) {
throw IllegalArgumentException("dimensions mismatch")
}
drawer.isolatedWithTarget(square) {
drawer.background(ColorRGBa.BLACK)
drawer.ortho(square)
drawer.view = Matrix44.IDENTITY
drawer.model = Matrix44.IDENTITY
drawer.image(input)
}
encodePoints.apply(square.colorBuffer(0), coordinates[0])
for (i in 0 until exp) {
jumpFlood.step = i
jumpFlood.apply(coordinates[i % 2], coordinates[(i + 1) % 2])
}
pixelDistance.apply(arrayOf(coordinates[exp % 2], thresholded), coordinates[exp % 2])
drawer.isolatedWithTarget(final) {
drawer.background(ColorRGBa.BLACK)
drawer.ortho(final)
drawer.view = Matrix44.IDENTITY
drawer.model = Matrix44.IDENTITY
drawer.image(coordinates[exp % 2])
}
return result
}
fun destroy(destroyFinal: Boolean = true) {
coordinates.forEach { it.destroy() }
square.colorBuffer(0).destroy()
square.detachColorBuffers()
square.destroy()
if (destroyFinal) {
final.colorBuffer(0).destroy()
}
final.detachColorBuffers()
final.destroy()
if (contourUsed) {
edges.destroy()
thresholded.destroy()
}
}
}
fun jumpFlood(drawer: Drawer, points: ColorBuffer): ColorBuffer {
val jumpFlooder = JumpFlooder(points.width, points.height)
jumpFlooder.jumpFlood(drawer, points)
val result = jumpFlooder.result
jumpFlooder.destroy(false)
return result
}

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@@ -1,16 +1,16 @@
#version 330 core
uniform sampler2D tex0;
uniform sampler2D tex1;
in vec2 v_texCoord0;
out vec4 o_color;
void main() {
vec2 size = textureSize(tex0, 0);
vec2 pixelPosition = v_texCoord0;
vec2 centroidPixelPosition = texture(tex0, v_texCoord0).xy;
vec2 pixelDistance = (centroidPixelPosition - pixelPosition) * size * vec2(1.0, -1.0);
float threshold = texture(tex1, v_texCoord0).r;
o_color = vec4(pixelDistance, threshold, 1.0);
#version 330 core
uniform sampler2D tex0;
uniform sampler2D tex1;
in vec2 v_texCoord0;
out vec4 o_color;
void main() {
vec2 size = textureSize(tex0, 0);
vec2 pixelPosition = v_texCoord0;
vec2 centroidPixelPosition = texture(tex0, v_texCoord0).xy;
vec2 pixelDistance = (centroidPixelPosition - pixelPosition) * size * vec2(1.0, -1.0);
float threshold = texture(tex1, v_texCoord0).r;
o_color = vec4(pixelDistance, threshold, 1.0);
}