io_scene_3ds/__init__.py

@@ -57,7 +57,12 @@ class Import3DS(bpy.types.Operator, ImportHelper):
     )
     use_scene_unit: BoolProperty(
         name="Scene Units",
-        description="Converts to scene unit length settings",
+        description="Convert to scene unit length settings",
+        default=False,
+    )
+    use_center_pivot: BoolProperty(
+        name="Pivot Origin",
+        description="Move all geometry to pivot origin",
         default=False,
     )
     use_image_search: BoolProperty(
@@ -177,6 +182,9 @@ class MAX3DS_PT_import_transform(bpy.types.Panel):
         layrow.prop(operator, "use_scene_unit")
         layrow.label(text="", icon='EMPTY_ARROWS' if operator.use_scene_unit else 'EMPTY_DATA')
         layrow = layout.row(align=True)
+        layrow.prop(operator, "use_center_pivot")
+        layrow.label(text="", icon='OVERLAY' if operator.use_center_pivot else 'PIVOT_ACTIVE')
+        layrow = layout.row(align=True)
         layrow.prop(operator, "use_apply_transform")
         layrow.label(text="", icon='MESH_CUBE' if operator.use_apply_transform else 'MOD_SOLIDIFY')
         layrow = layout.row(align=True)

io_scene_3ds/export_3ds.py

@@ -1858,12 +1858,13 @@ def save(operator, context, filepath="", scale_factor=1.0, use_scene_unit=False,
         light_inner_range = _3ds_chunk(LIGHT_INNER_RANGE)
         light_outer_range = _3ds_chunk(LIGHT_OUTER_RANGE)
         light_energy_factor = _3ds_chunk(LIGHT_MULTIPLIER)
+        light_ratio = ob.data.energy if ob.data.type == 'SUN' else ob.data.energy * 0.001
         object_chunk.add_variable("light", _3ds_string(sane_name(ob.name)))
         obj_light_chunk.add_variable("location", _3ds_point_3d(light_distance))
         color_float_chunk.add_variable("color", _3ds_float_color(ob.data.color))
         light_outer_range.add_variable("distance", _3ds_float(ob.data.cutoff_distance))
-        light_inner_range.add_variable("radius", _3ds_float(ob.data.shadow_soft_size))
+        light_inner_range.add_variable("radius", _3ds_float(ob.data.shadow_soft_size * 100))
-        light_energy_factor.add_variable("energy", _3ds_float(ob.data.energy * 0.001))
+        light_energy_factor.add_variable("energy", _3ds_float(light_ratio))
         obj_light_chunk.add_subchunk(color_float_chunk)
         obj_light_chunk.add_subchunk(light_outer_range)
         obj_light_chunk.add_subchunk(light_inner_range)
@@ -1943,6 +1944,7 @@ def save(operator, context, filepath="", scale_factor=1.0, use_scene_unit=False,
     for ob in camera_objects:
         object_chunk = _3ds_chunk(OBJECT)
         camera_chunk = _3ds_chunk(OBJECT_CAMERA)
+        crange_chunk = _3ds_chunk(OBJECT_CAM_RANGES)
         camera_distance = translation[ob.name]
         camera_target = calc_target(camera_distance, rotation[ob.name].x, rotation[ob.name].z)
         object_chunk.add_variable("camera", _3ds_string(sane_name(ob.name)))
@@ -1950,6 +1952,9 @@ def save(operator, context, filepath="", scale_factor=1.0, use_scene_unit=False,
         camera_chunk.add_variable("target", _3ds_point_3d(camera_target))
         camera_chunk.add_variable("roll", _3ds_float(round(rotation[ob.name].y, 6)))
         camera_chunk.add_variable("lens", _3ds_float(ob.data.lens))
+        crange_chunk.add_variable("clipstart", _3ds_float(ob.data.clip_start * 0.1))
+        crange_chunk.add_variable("clipend", _3ds_float(ob.data.clip_end * 0.1))
+        camera_chunk.add_subchunk(crange_chunk)
         object_chunk.add_subchunk(camera_chunk)
 
         # Add hierachy chunks with ID from object_id dictionary

io_scene_3ds/import_3ds.py

@@ -890,24 +890,6 @@ def process_next_chunk(context, file, previous_chunk, imported_objects, CONSTRAI
         elif CreateWorld and new_chunk.ID in {USE_FOG, USE_LAYER_FOG}:
             context.view_layer.use_pass_mist = True
 
-        # If object chunk - can be material and mesh, light and spot or camera
-        elif new_chunk.ID == OBJECT:
-            if CreateBlenderObject:
-                putContextMesh(context, contextMesh_vertls, contextMesh_facels, contextMesh_flag,
-                               contextMeshMaterials, contextMesh_smooth, WORLD_MATRIX)
-
-                contextMesh_vertls = []
-                contextMesh_facels = []
-                contextMeshMaterials = []
-                contextMesh_flag = None
-                contextMesh_smooth = None
-                contextMeshUV = None
-                contextMatrix = None
-
-            CreateBlenderObject = True if CreateMesh else False
-            contextObName, read_str_len = read_string(file)
-            new_chunk.bytes_read += read_str_len
-
         # If material chunk
         elif new_chunk.ID == MATERIAL:
             contextAlpha = True
@@ -1058,6 +1040,25 @@ def process_next_chunk(context, file, previous_chunk, imported_objects, CONSTRAI
         elif new_chunk.ID == MAT_TEX2_MAP:
             read_texture(new_chunk, temp_chunk, "Tex", 'TEXTURE')
 
+        # If object chunk - can be mesh, light and spot or camera
+        elif new_chunk.ID == OBJECT:
+            if CreateBlenderObject:
+                putContextMesh(context, contextMesh_vertls, contextMesh_facels, contextMesh_flag,
+                               contextMeshMaterials, contextMesh_smooth, WORLD_MATRIX)
+
+                contextMesh_vertls = []
+                contextMesh_facels = []
+                contextMeshMaterials = []
+                contextMesh_flag = None
+                contextMesh_smooth = None
+                contextMeshUV = None
+                contextMatrix = None
+
+            CreateBlenderObject = True if CreateMesh else False
+            CreateLightObject = CreateCameraObject = False
+            contextObName, read_str_len = read_string(file)
+            new_chunk.bytes_read += read_str_len
+
         # If mesh chunk
         elif new_chunk.ID == OBJECT_MESH:
             pass
@@ -1132,7 +1133,7 @@ def process_next_chunk(context, file, previous_chunk, imported_objects, CONSTRAI
         elif CreateLightObject and new_chunk.ID == LIGHT_OUTER_RANGE:  # Distance
             contextLamp.data.cutoff_distance = read_float(new_chunk)
         elif CreateLightObject and new_chunk.ID == LIGHT_INNER_RANGE:  # Radius
-            contextLamp.data.shadow_soft_size = read_float(new_chunk)
+            contextLamp.data.shadow_soft_size = (read_float(new_chunk) * 0.01)
         elif CreateLightObject and new_chunk.ID == LIGHT_MULTIPLIER:  # Intensity
             contextLamp.data.energy = (read_float(new_chunk) * 1000)
         elif CreateLightObject and new_chunk.ID == LIGHT_ATTENUATE:  # Attenuation
@@ -1207,6 +1208,11 @@ def process_next_chunk(context, file, previous_chunk, imported_objects, CONSTRAI
                 contextCamera.rotation_euler.z = direction[1]
                 contextCamera.data.lens = read_float(new_chunk)  # Focal length
             contextMatrix = None  # Reset matrix
+        elif CreateCameraObject and new_chunk.ID == OBJECT_CAM_RANGES:  # Range
+            camrange = read_float(new_chunk)
+            startrange = camrange if camrange >= 0.01 else 0.1
+            contextCamera.data.clip_start = startrange * CONSTRAIN
+            contextCamera.data.clip_end = read_float(new_chunk) * CONSTRAIN
         elif CreateCameraObject and new_chunk.ID == OBJECT_HIERARCHY:  # Hierarchy
             child_id = get_hierarchy(new_chunk)
         elif CreateCameraObject and new_chunk.ID == OBJECT_PARENT:
@@ -1560,8 +1566,9 @@ def process_next_chunk(context, file, previous_chunk, imported_objects, CONSTRAI
 # IMPORT #
 ##########
 
-def load_3ds(filepath, context, CONSTRAIN=10.0, UNITS=False, IMAGE_SEARCH=True, FILTER=None,
+def load_3ds(filepath, context, CONSTRAIN=10.0, UNITS=False, IMAGE_SEARCH=True,
-             WORLD_MATRIX=False, KEYFRAME=True, APPLY_MATRIX=True, CONVERSE=None, CURSOR=False):
+             FILTER=None, WORLD_MATRIX=False, KEYFRAME=True, APPLY_MATRIX=True,
+             CONVERSE=None, CURSOR=False, PIVOT=False):
 
     print("importing 3DS: %r..." % (filepath), end="")
 
@@ -1643,9 +1650,13 @@ def load_3ds(filepath, context, CONSTRAIN=10.0, UNITS=False, IMAGE_SEARCH=True,
             ob.scale.y = (square / (math.sqrt(pow(aspect,2) + 1.0)))
             ob.scale.z = 1.0
         ob.select_set(True)
-        if not APPLY_MATRIX:  # Reset transform
+        if ob.type == 'MESH':
-            bpy.ops.object.rotation_clear()
+            if PIVOT:
-            bpy.ops.object.location_clear()
+                bpy.ops.object.origin_set(type='GEOMETRY_ORIGIN')
+            if not APPLY_MATRIX:  # Reset transform
+                bpy.ops.object.rotation_clear()
+                bpy.ops.object.location_clear()
+                bpy.ops.object.scale_clear()
 
     """
     if IMPORT_AS_INSTANCE:
@@ -1712,11 +1723,11 @@ def load_3ds(filepath, context, CONSTRAIN=10.0, UNITS=False, IMAGE_SEARCH=True,
 
 
 def load(operator, context, filepath="", constrain_size=0.0, use_scene_unit=False,
-         use_image_search=True, object_filter=None, use_world_matrix=False,
+         use_image_search=True, object_filter=None, use_world_matrix=False, use_keyframes=True,
-         use_keyframes=True, use_apply_transform=True, global_matrix=None, use_cursor=False):
+         use_apply_transform=True, global_matrix=None, use_cursor=False, use_center_pivot=False):
 
     load_3ds(filepath, context, CONSTRAIN=constrain_size, UNITS=use_scene_unit,
-             IMAGE_SEARCH=use_image_search, FILTER=object_filter, WORLD_MATRIX=use_world_matrix,
+             IMAGE_SEARCH=use_image_search, FILTER=object_filter, WORLD_MATRIX=use_world_matrix, KEYFRAME=use_keyframes,
-             KEYFRAME=use_keyframes, APPLY_MATRIX=use_apply_transform, CONVERSE=global_matrix, CURSOR=use_cursor,)
+             APPLY_MATRIX=use_apply_transform, CONVERSE=global_matrix, CURSOR=use_cursor, PIVOT=use_center_pivot,)
 
     return {'FINISHED'}