Add test file, glTF works.

staging/lightmap_support.js

@@ -0,0 +1,103 @@
+/* eslint-disable */
+
+const createScene = function () {
+    const scene = new BABYLON.Scene(engine);
+    const camera = new BABYLON.ArcRotateCamera(
+        "camera1",
+        Math.PI / 2,
+        Math.PI / 4,
+        10,
+        BABYLON.Vector3.Zero(),
+        scene
+    );
+    camera.attachControl(canvas, true);
+    const light = new BABYLON.HemisphericLight(
+        "light",
+        new BABYLON.Vector3(0, 1, 0),
+        scene
+    );
+    light.intensity = 0.7;
+
+    BABYLON.SceneLoader.ImportMesh(
+        "",
+        "https://digisomni-singapore-1.ap-south-1.linodeobjects.com/falah-tech/virtual-collaboration/Testing/Vircadia/Lightmaps/Test2/",
+        "LightmapTest_jpg.gltf",
+        scene,
+        function (newMeshes) {
+            newMeshes.forEach((mesh) => {
+                if (
+                    mesh.metadata &&
+                    mesh.metadata.gltf &&
+                    mesh.metadata.gltf.extras &&
+                    mesh.metadata.gltf.extras.vircadia_lightmap_default
+                ) {
+                    console.info(
+                        "Found lightmap in metadata:",
+                        mesh.metadata.gltf.extras.vircadia_lightmap_default
+                    );
+                    const baseLightmapUrl =
+                        "https://digisomni-singapore-1.ap-south-1.linodeobjects.com/falah-tech/virtual-collaboration/Testing/Vircadia/Lightmaps/Test2/" +
+                        mesh.metadata.gltf.extras.vircadia_lightmap_default;
+                    const extensions = [
+                        ".png",
+                        ".webp",
+                        ".exr",
+                        ".jpg",
+                        ".jpeg",
+                    ];
+                    let lightmapTextureLoaded = false;
+
+                    extensions.forEach((ext) => {
+                        const lightmapTextureUrl = baseLightmapUrl + ext;
+                        console.info(
+                            "Trying to load lightmap texture:",
+                            lightmapTextureUrl
+                        );
+                        var lightmapTexture = new BABYLON.Texture(
+                            lightmapTextureUrl,
+                            scene,
+                            true,
+                            false,
+                            BABYLON.Texture.TRILINEAR_SAMPLINGMODE,
+                            () => {
+                                mesh.material.lightmapTexture = lightmapTexture;
+                                mesh.material.useLightmapAsShadowmap = true;
+                                mesh.material.lightmapTexture.coordinatesIndex =
+                                    mesh.metadata.gltf.extras.vircadia_lightmap_texcoord;
+                                console.info(
+                                    "Successfully loaded lightmap texture:",
+                                    lightmapTextureUrl
+                                );
+                                lightmapTextureLoaded = true;
+                            },
+                            (message, exception) => {
+                                console.error(
+                                    "Failed to load lightmap texture:",
+                                    lightmapTextureUrl,
+                                    message,
+                                    exception
+                                );
+                            },
+                            null,
+                            true
+                        );
+                    });
+
+                    if (!lightmapTextureLoaded) {
+                        console.error(
+                            "Failed to load lightmap texture for:",
+                            mesh.name
+                        );
+                    }
+                }
+                // Check if the mesh name matches 'vircadia_lightmapData' and hide it
+                if (mesh.name === "vircadia_lightmapData") {
+                    mesh.isVisible = false; // This hides the mesh
+                    console.info("Mesh vircadia_lightmapData is now hidden");
+                }
+            });
+        }
+    );
+
+    return scene;
+};