kaze/orx
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

[orx-shapes] Demo comments

Browse Source
This commit is contained in:
Abe Pazos
2025-08-30 23:56:56 +02:00
parent 2c3417dad6
commit ea4a2c0d89
12 changed files with 196 additions and 64 deletions
Download Patch File Download Diff File Expand all files Collapse all files

94
orx-shapes/src/jvmDemo/kotlin/bezierpatch/DemoBezierPatchDrawer03.kt
View File

@@ -13,56 +13,66 @@ import org.openrndr.shape.Circle
import org.openrndr.shape.Rectangle
import kotlin.math.min
/**
* Demonstrates how to render a grid of bezier patches that morph between a rectangle and
* a rotated circle contour.
* These shapes are transformed into bezier patches, and their colors are interpolated through a blend
* factor calculated for each cell in the grid.
*
* The grid layout contains 4 columns and 4 rows with margins and gutters.
* Each cell's center serves as the drawing position for a blended bezier patch.
*/
fun main() = application {
configure {
width = 720
height = 720
}
program {
val colors = listOf(
listOf(
ColorRGBa.PINK.toOKLABa(),
ColorRGBa.PINK.toOKLABa(),
ColorRGBa.PINK.toOKLABa(),
ColorRGBa.PINK.toOKLABa()
),
listOf(
ColorRGBa.RED.toOKLABa(),
ColorRGBa.RED.toOKLABa(),
ColorRGBa.RED.toOKLABa(),
ColorRGBa.RED.toOKLABa()
),
listOf(
ColorRGBa.BLUE.toOKLABa(),
ColorRGBa.BLUE.toOKLABa(),
ColorRGBa.BLUE.toOKLABa(),
ColorRGBa.BLUE.toOKLABa()
),
listOf(
ColorRGBa.WHITE.toOKLABa(),
ColorRGBa.WHITE.toOKLABa(),
ColorRGBa.WHITE.toOKLABa(),
ColorRGBa.WHITE.toOKLABa()
),
)
val grid = drawer.bounds.grid(4, 4, marginX = 20.0, marginY = 20.0, gutterX = 10.0, gutterY = 10.0)
val cellWidth = grid[0][0].width
val cellHeight = grid[0][0].height
val a = bezierPatch(Rectangle.fromCenter(Vector2.ZERO, cellWidth, cellHeight).contour)
.withColors(colors)
val b = bezierPatch(
Circle(Vector2.ZERO, min(cellWidth, cellHeight) / 2.0).contour.transform(
buildTransform {
rotate(Vector3.UNIT_Z, 45.0)
}
)
).withColors(colors)
extend {
drawer.clear(ColorRGBa.BLACK)
val colors = listOf(
listOf(
ColorRGBa.PINK.toOKLABa(),
ColorRGBa.PINK.toOKLABa(),
ColorRGBa.PINK.toOKLABa(),
ColorRGBa.PINK.toOKLABa()
),
listOf(
ColorRGBa.RED.toOKLABa(),
ColorRGBa.RED.toOKLABa(),
ColorRGBa.RED.toOKLABa(),
ColorRGBa.RED.toOKLABa()
),
listOf(
ColorRGBa.BLUE.toOKLABa(),
ColorRGBa.BLUE.toOKLABa(),
ColorRGBa.BLUE.toOKLABa(),
ColorRGBa.BLUE.toOKLABa()
),
listOf(
ColorRGBa.WHITE.toOKLABa(),
ColorRGBa.WHITE.toOKLABa(),
ColorRGBa.WHITE.toOKLABa(),
ColorRGBa.WHITE.toOKLABa()
),
)
val grid = drawer.bounds.grid(4, 4, marginX = 20.0, marginY = 20.0, gutterX = 10.0, gutterY = 10.0)
val cellWidth = grid[0][0].width
val cellHeight = grid[0][0].height
val a = bezierPatch(Rectangle.fromCenter(Vector2(0.0, 0.0), cellWidth, cellHeight).contour)
.withColors(colors)
val b = bezierPatch(
Circle(0.0, 0.0, min(cellWidth, cellHeight) / 2.0).contour.transform(
buildTransform {
rotate(Vector3.UNIT_Z, 45.0)
}
)
).withColors(colors)
for (y in grid.indices) {
for (x in grid[y].indices) {