restore ortho/perspective on workspace import

src/kiri/core/init.js

@@ -135,7 +135,6 @@ api.event.on("set.threaded", bool => setThreaded(bool));
 
 function booleanSave() {
     let control = settings().controller;
-    let setProjection = ui.ortho.checked !== control.ortho;
     if (control.assembly != ui.assembly.checked) {
         client.wasm(ui.assembly.checked);
     }
@@ -171,9 +170,7 @@ function booleanSave() {
     updateStats();
     updateDrawer();
     api.event.emit('boolean.update');
-    if (setProjection) {
-        space.view.setProjection(control.ortho ? 'orthographic' : 'perspective');
-    }
+    space.view.setProjection(control.ortho ? 'orthographic' : 'perspective');
 }
 
 function updateDrawer() {
@@ -1605,6 +1602,7 @@ function init_two() {
         space.view.setZoom(control.reverseZoom, control.zoomSpeed);
         space.platform.setGridZOff(undefined);
         space.platform.setZOff(0.05);
+        space.view.setProjection(control.ortho ? 'orthographic' : 'perspective');
 
         // restore UI state from settings
         ui.antiAlias.checked = control.antiAlias;

src/moto/orbit.js

@@ -299,12 +299,24 @@ class Orbit extends EventDispatcher {
             phiSet = null;
             pan.set(0, 0, 0);
 
-            scaleSave *= scale;
-
             if (mode === MODE.ORTHOGRAPHIC) {
-                scope.object.zoom = 1/scale;
+                // For orthographic, constrain zoom based on maxDistance/minDistance
+                // Effective distance is base distance times inverse of zoom
+                let baseDistance = offset.length();
+                let newScaleSave = scaleSave * scale;
+
+                // Clamp scaleSave to maintain reasonable zoom levels
+                // Larger scaleSave = smaller zoom = more zoomed out (like larger distance)
+                // Smaller scaleSave = larger zoom = more zoomed in (like smaller distance)
+                let maxScaleSave = scope.maxDistance / baseDistance;
+                let minScaleSave = scope.minDistance / baseDistance;
+                newScaleSave = Math.max(minScaleSave, Math.min(maxScaleSave, newScaleSave));
+
+                scaleSave = newScaleSave;
+                scope.object.zoom = 1 / scaleSave;
                 scope.object.updateProjectionMatrix();
             } else {
+                scaleSave *= scale;
                 scale = 1;
             }
 
@@ -340,7 +352,9 @@ class Orbit extends EventDispatcher {
         };
 
         function getZoomScale(factor = 1) {
-            return Math.pow(0.95, factor);
+            // Use slower zoom for orthographic mode
+            let base = mode === MODE.ORTHOGRAPHIC ? 0.98 : 0.95;
+            return Math.pow(base, factor);
         }
 
         function onMouseDown(event) {

src/moto/space.js

@@ -1466,7 +1466,7 @@ let Space = {
         }
 
         // Save current view state
-        const position = viewControl.getPosition();
+        const position = viewControl.getPosition(true);
         const target = viewControl.getTarget().clone();
         const distance = camera.position.distanceTo(target);
 
@@ -1477,7 +1477,7 @@ let Space = {
             // Calculate ortho size based on perspective distance and FOV
             const size = distance * Math.tan(perspective * Math.PI / 180 / 2);
             newCamera = new THREE.OrthographicCamera(
-                -size * asp, size * asp, size, -size, 0.1, 100000
+                -size * asp, size * asp, size, -size, -10000, 100000
             );
         } else {
             newCamera = new THREE.PerspectiveCamera(
@@ -1577,7 +1577,7 @@ let Space = {
         renderer.localClippingEnabled = true;
         cameraType = ortho ? 'orthographic' : 'perspective';
         camera = ortho ?
-            new THREE.OrthographicCamera(-100 * aspect(), 100 * aspect(), 100, -100, 0.1, 100000) :
+            new THREE.OrthographicCamera(-100 * aspect(), 100 * aspect(), 100, -100, -10000, 100000) :
             new THREE.PerspectiveCamera(perspective, aspect(), 0.1, 100000);
 
         camera.position.set(0, 200, 340);