DemoFrames01.kt

package frames

import org.openrndr.WindowMultisample
import org.openrndr.application
import org.openrndr.color.ColorRGBa
import org.openrndr.draw.DrawPrimitive
import org.openrndr.draw.isolated
import org.openrndr.draw.shadeStyle
import org.openrndr.extra.camera.Orbital
import org.openrndr.extra.meshgenerators.cylinderMesh
import org.openrndr.extra.noise.uniformRing
import org.openrndr.extra.shapes.frames.frames
import org.openrndr.extra.shapes.rectify.rectified
import org.openrndr.math.Vector3
import org.openrndr.shape.path3D
import kotlin.random.Random

fun main() {
    application {
        configure {
            width = 720
            height = 720
            multisample = WindowMultisample.SampleCount(4)
        }
        program {
            val random = Random(0)
            val cylinder = cylinderMesh(radius = 0.5, length = 0.1)
            val p = path3D {
                moveTo(0.0, 0.0, 0.0)
                curveTo(
                    Vector3.uniformRing(0.1, 1.0, random = random)*10.0,
                    Vector3.uniformRing(0.1, 1.0, random = random)*10.0,
                    Vector3.uniformRing(0.1, 1.0, random = random)*10.0
                )
                for (i in 0 until 10) {
                    continueTo(
                        Vector3.uniformRing(0.1, 1.0, random = random)*10.0,
                        Vector3.uniformRing(0.1, 1.0, random = random)*10.0
                    )
                }
            }
            val pr = p.rectified(0.01, 100.0)


            val frames = pr.frames((0 until 100).map { it / 100.0}, Vector3.UNIT_Y, analyticalDirections = false)
            extend(Orbital())
            extend {
                drawer.shadeStyle = shadeStyle {
                    fragmentTransform = """
                        x_fill.rgb = vec3(abs(v_viewNormal.z)*0.9+ 0.1);
                    """.trimIndent()
                }

                drawer.stroke = ColorRGBa.PINK
                drawer.path(p)

                for (frame in frames) {
                    drawer.isolated {
                        drawer.model = frame
                        drawer.vertexBuffer(cylinder, DrawPrimitive.TRIANGLES)
                    }
                }

            }
        }
    }
}