[orx-noise] Add hash functions

2024-10-20 14:14:50 +02:00
parent 6e1e161726
commit fba1e5b61a
23 changed files with 473 additions and 63 deletions
--- a/orx-mesh-generators/src/commonMain/kotlin/mesh/Box.kt
+++ b/orx-mesh-generators/src/commonMain/kotlin/mesh/Box.kt
@@ -0,0 +1,72 @@
+package org.openrndr.extra.mesh.generators
+
+import org.openrndr.extra.mesh.*
+import org.openrndr.math.Vector2
+import org.openrndr.math.Vector3
+
+class MeshBuilder {
+    val vertexData = MutableVertexData()
+    val polygons = mutableListOf<IndexedPolygon>()
+    val mesh = MutableMeshData(vertexData, polygons)
+}
+
+fun box(): MeshData {
+
+    val positions = listOf(
+        Vector3(-0.5, -0.5, -0.5),
+        Vector3(0.5, -0.5, -0.5),
+        Vector3(-0.5, 0.5, -0.5),
+        Vector3(0.5, 0.5, -0.5),
+
+        Vector3(-0.5, -0.5, 0.5),
+        Vector3(0.5, -0.5, 0.5),
+        Vector3(-0.5, 0.5, 0.5),
+        Vector3(0.5, 0.5, 0.5),
+    )
+
+    val textureCoords = listOf(
+        Vector2(0.0, 0.0),
+        Vector2(1.0, 0.0),
+        Vector2(0.0, 1.0),
+        Vector2(1.0, 1.0),
+    )
+
+    val normals = listOf(
+        Vector3(-1.0, 0.0, 0.0),
+        Vector3(1.0, 0.0, 0.0),
+        Vector3(0.0, -1.0, 0.0),
+        Vector3(0.0, 1.0, 0.0),
+        Vector3(0.0, 0.0, -1.0),
+        Vector3(0.0, 0.0, 1.0)
+    )
+
+    val polygons = listOf(
+        // -x
+        IndexedPolygon(
+            positions = listOf(0, 2, 4, 6),
+            textureCoords = listOf(0, 1, 3, 2),
+            colors = emptyList(),
+            normals = listOf(0, 0, 0, 0),
+            tangents = listOf(5, 5, 5, 5),
+            bitangents = listOf(3, 3, 3, 3)
+        ),
+        // +x
+        IndexedPolygon(
+            positions = listOf(1, 3, 5, 7),
+            textureCoords = listOf(0, 1, 3, 2),
+            colors = emptyList(),
+            normals = listOf(1, 1, 1, 1),
+            tangents = listOf(4, 4, 4, 4),
+            bitangents = listOf(3, 3, 3, 3)
+        )
+    )
+    return MeshData(
+        VertexData(
+            positions = positions,
+            textureCoords = textureCoords,
+            normals = normals,
+            tangents = normals,
+            bitangents = normals
+        ), polygons
+    )
+}