#36

2025-11-29 16:40:17 +02:00
parent 2078cef20b
commit f383d9d548
2 changed files with 37 additions and 18 deletions
@@ -1,4 +1,4 @@
-import { TextureLoader, MeshStandardMaterial, MeshBasicMaterial, PlaneGeometry, Mesh, DoubleSide } from "three";
+import { TextureLoader, MeshStandardMaterial, MeshBasicMaterial, PlaneGeometry, Mesh, DoubleSide, Vector3 } from "three";
 import { assignParams } from "@/lib/MeshUtils";

 class ImageObject {
@@ -28,6 +28,25 @@ class ImageObject {
                }
            }
            this.object = new Mesh(geo, mp.metalness ? new MeshStandardMaterial(mp) : new MeshBasicMaterial(mp));
+            
+            if (obj.distance) {
+                const o = this.object;
+                let dstm = obj.distance;
+                var oldBR = o.onBeforeRender;
+                o.material.opacity = 0.01;
+                o.onBeforeRender = function (renderer, scene, camera) {
+                    oldBR && oldBR.apply(this, arguments);
+                    var v = new Vector3();
+                    o.getWorldPosition(v);
+                    var dst = camera.position.distanceTo(v);
+                    if (dst < dstm * 2 && dst > dstm * 1) {
+                        o.material.opacity = dstm * 1 - (dst - dstm * 1);
+                    }
+                    if (dst < .5 * dstm) {
+                        o.material.opacity = dstm * dst * 2;
+                    }
+                };
+            }
            resolve(this)
        })
    }