[orx-dnk3] Added DSL

orx-dnk3/src/demo/kotlin/DemoDSL01.kt

@@ -0,0 +1,86 @@
+import org.openrndr.application
+import org.openrndr.color.ColorRGBa
+import org.openrndr.extensions.SingleScreenshot
+import org.openrndr.extra.dnk3.dsl.*
+import org.openrndr.extra.dnk3.renderers.dryRenderer
+import org.openrndr.extra.dnk3.tools.addSkybox
+import org.openrndr.extras.camera.Orbital
+import org.openrndr.extras.meshgenerators.boxMesh
+import org.openrndr.extras.meshgenerators.groundPlaneMesh
+import org.openrndr.math.Vector3
+import org.openrndr.math.transforms.transform
+
+fun main() = application {
+    configure {
+        width = 1280
+        height = 720
+    }
+
+    program {
+        if (System.getProperty("takeScreenshot") == "true") {
+            extend(SingleScreenshot()) {
+                this.outputFile = System.getProperty("screenshotPath")
+            }
+        }
+        extend(Orbital()) {
+            eye = Vector3(4.0, 4.0, 4.0)
+        }
+
+        val renderer = dryRenderer()
+        val scene = scene {
+
+            addSkybox("file:demo-data/cubemaps/garage_iem.dds")
+
+            root.hemisphereLight {
+                upColor = ColorRGBa.WHITE.shade(0.1)
+                downColor = ColorRGBa.BLACK
+            }
+
+            root.node {
+                transform = transform {
+                    translate(0.0, 2.0, 0.0)
+                }
+
+                pointLight {
+                    constantAttenuation = 0.0
+                    quadraticAttenuation = 1.0
+                }
+            }
+
+            root.node {
+                simpleMesh {
+                    vertexBuffer = groundPlaneMesh(100.0, 100.0)
+                    material = pbrMaterial {
+                        color = ColorRGBa.GREEN
+                    }
+                }
+            }
+
+            for (j in -3..3) {
+                for (i in -3..3) {
+                    root.node {
+                        transform = transform {
+                            translate(i * 2.0, 1.0, j * 2.0)
+                        }
+                        update {
+                            transform = transform {
+                                translate(i * 2.0, 1.0, j * 2.0)
+                                rotate(Vector3.UNIT_Z, seconds* 45.0 + i * 20.0 + j * 50.0)
+                            }
+                        }
+                        simpleMesh {
+                            vertexBuffer = boxMesh()
+                            material = pbrMaterial {
+                                color = ColorRGBa.WHITE
+                            }
+                        }
+                    }
+                }
+            }
+        }
+        extend {
+            drawer.clear(ColorRGBa.BLACK)
+            renderer.draw(drawer, scene)
+        }
+    }
+}

orx-dnk3/src/main/kotlin/dsl/PBRMaterialBuilder.kt

@@ -0,0 +1,12 @@
+package org.openrndr.extra.dnk3.dsl
+
+import org.openrndr.extra.dnk3.PBRMaterial
+
+fun pbrMaterial(builder: PBRMaterial.() -> Unit): PBRMaterial {
+    return PBRMaterial().apply { builder() }
+}
+
+fun test() {
+    pbrMaterial {
+    }
+}

orx-dnk3/src/main/kotlin/dsl/SceneBuilder.kt

@@ -0,0 +1,80 @@
+package org.openrndr.extra.dnk3.dsl
+
+import kotlinx.coroutines.yield
+import org.openrndr.draw.DrawPrimitive
+import org.openrndr.draw.VertexBuffer
+import org.openrndr.extra.dnk3.*
+import org.openrndr.launch
+
+fun scene(builder: Scene.() -> Unit): Scene {
+    val scene = Scene()
+    scene.builder()
+    return scene
+}
+
+fun SceneNode.node(builder: SceneNode.() -> Unit): SceneNode {
+    val node = SceneNode()
+    node.builder()
+    children.add(node)
+    return node
+}
+
+fun SceneNode.hemisphereLight(builder: HemisphereLight.() -> Unit) : HemisphereLight {
+    val hemisphereLight = HemisphereLight()
+    hemisphereLight.builder()
+    entities.add(hemisphereLight)
+    return hemisphereLight
+}
+
+fun SceneNode.directionalLight(buider: DirectionalLight.() -> Unit): DirectionalLight {
+    val directionalLight = DirectionalLight()
+    directionalLight.buider()
+    this.entities.add(directionalLight)
+    return directionalLight
+}
+
+fun SceneNode.pointLight(builder: PointLight.() -> Unit): PointLight {
+    val pointLight = PointLight()
+    pointLight.builder()
+    this.entities.add(pointLight)
+    return pointLight
+}
+
+fun SceneNode.spotLight(builder: SpotLight.() -> Unit): SpotLight {
+    val spotLight = SpotLight()
+    spotLight.builder()
+    this.entities.add(spotLight)
+    return spotLight
+}
+
+class SimpleMeshBuilder {
+    var vertexBuffer: VertexBuffer? = null
+    var primitive = DrawPrimitive.TRIANGLES
+    var material: Material? = null
+    fun build(): Mesh {
+        val geometry = Geometry(
+                listOf(vertexBuffer ?: error("no vertex buffer")),
+                null,
+                primitive,
+                0,
+                vertexBuffer?.vertexCount ?: error("no vertex buffer")
+        )
+        val primitive = MeshPrimitive(geometry, material ?: error("no material"))
+        return Mesh(listOf(primitive))
+    }
+}
+
+fun Scene.update(function: ()->Unit) {
+    dispatcher.launch {
+        while (true) {
+            function()
+            yield()
+        }
+     }
+}
+
+fun SceneNode.simpleMesh(builder: SimpleMeshBuilder.() -> Unit): Mesh {
+    val mesh = SimpleMeshBuilder().apply { builder() }.build()
+    entities.add(mesh)
+    return mesh
+}

orx-dnk3/src/main/kotlin/tools/Skybox.kt

@@ -33,7 +33,7 @@ data class SkyboxMaterial(val cubemap: Cubemap, val intensity: Double = 0.0) : M
                 
             """.trimIndent()
             fragmentTransform = """
-                f_diffuse =  texture(p_skybox, va_position);
+                f_diffuse = texture(p_skybox, va_position);
                 f_diffuse.rgb *= p_intensity;
             """ + combinerFS
 
@@ -71,8 +71,8 @@ data class SkyboxMaterial(val cubemap: Cubemap, val intensity: Double = 0.0) : M
 
 }
 
-fun Scene.addSkybox(cubemapUrl: String, size: Double = 100.0, intensity:Double = 1.0) {
-    val cubemap = Cubemap.fromUrl(cubemapUrl, Session.active)
+fun Scene.addSkybox(cubemapUrl: String, size: Double = 100.0, intensity: Double = 1.0) {
+    val cubemap = Cubemap.fromUrl(cubemapUrl, Session.active).apply { generateMipmaps() }
     val box = boxMesh(size, size, size, 1, 1, 1, true)
     val node = SceneNode()
     val material = SkyboxMaterial(cubemap, intensity)