56 lines
1.6 KiB
Kotlin
56 lines
1.6 KiB
Kotlin
import org.openrndr.WindowMultisample
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import org.openrndr.application
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import org.openrndr.color.ColorRGBa
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import org.openrndr.draw.DrawPrimitive
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import org.openrndr.draw.shadeStyle
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import org.openrndr.extra.camera.Orbital
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import org.openrndr.extra.meshgenerators.box
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import org.openrndr.extra.meshgenerators.buildTriangleMesh
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import org.openrndr.extra.meshgenerators.sphere
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import org.openrndr.math.Vector3
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/**
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* Demonstrates how to use `buildTriangleMesh` to construct composite 3D meshes.
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*
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* A DSL allows specifying the color and transformations of each mesh, in this case,
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* of a sphere and a box.
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*
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* An interactive 3D Orbital camera is defined, specifying the location of its `eye` and
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* `lookAt` properties.
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*
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* A minimal shade style is used to simulate a uni-directional light pointing along the view Z axis.
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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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multisample = WindowMultisample.SampleCount(8)
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}
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program {
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val m = buildTriangleMesh {
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color = ColorRGBa.PINK
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sphere(32, 32, 1.0)
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color = ColorRGBa.WHITE
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translate(0.0, -2.0, 0.0)
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box(4.0, 4.0, 4.0)
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}
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extend(Orbital()) {
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this.eye = Vector3(0.0, 3.0, 7.0)
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this.lookAt = Vector3(0.0, 2.0, 0.0)
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}
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extend {
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drawer.shadeStyle = shadeStyle {
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fragmentTransform = """
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x_fill = va_color;
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x_fill.rgb *= v_viewNormal.z;
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""".trimIndent()
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}
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drawer.vertexBuffer(m, DrawPrimitive.TRIANGLES)
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}
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}
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}
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