Fixing Blender scene export rotations: part 2

And this should be it. Probably our longest standing bug. Relief ;)

examples/obj/blenderscene/scene.js

@@ -21,9 +21,9 @@
 		"geometry"  : "geo_Cube",
 		"groups"    : [  ],
 		"material"  : "Material",
-		"position"  : [ 10.6237, 0.321692, 3.37078 ],
-		"rotation"  : [ 0.00526525, 0.0563064, 1.566 ],
-		"quaternion": [ -0.0179916, 0.0218086, 0.705076, 0.708568 ],
+		"position"  : [ 10.6237, 3.37078, -0.321692 ],
+		"rotation"  : [ 0.0902071, 1.62731, 1.6556 ],
+		"quaternion": [ -0.513755, 0.513985, 0.483143, 0.488311 ],
 		"scale"     : [ 8.31, 0.12, 4.93 ],
 		"visible"       : true,
 		"castShadow"    : false,
@@ -35,9 +35,9 @@
 		"geometry"  : "geo_Monkey",
 		"groups"    : [  ],
 		"material"  : "Material.002",
-		"position"  : [ 1.70266, -5.86042, 0.680278 ],
-		"rotation"  : [ 1.41352, -0.0813772, -3.079 ],
-		"quaternion": [ -0.0106173, -0.649485, -0.758643, 0.0501767 ],
+		"position"  : [ 1.70266, 0.680277, 5.86042 ],
+		"rotation"  : [ -0.152186, -3.07921, -0.0815374 ],
+		"quaternion": [ -0.0429884, -0.995697, -0.0771868, 0.0279714 ],
 		"scale"     : [ 0.435837, 0.435837, 0.435837 ],
 		"visible"       : true,
 		"castShadow"    : false,
@@ -49,9 +49,9 @@
 		"geometry"  : "geo_Monkey",
 		"groups"    : [  ],
 		"material"  : "Material.002",
-		"position"  : [ 0.0812951, -5.80878, 0.639505 ],
-		"rotation"  : [ 1.41352, -0.0813772, -3.079 ],
-		"quaternion": [ -0.0106173, -0.649485, -0.758643, 0.0501767 ],
+		"position"  : [ 0.0812951, 0.639505, 5.80878 ],
+		"rotation"  : [ -0.152186, -3.07921, -0.0815374 ],
+		"quaternion": [ -0.0429884, -0.995697, -0.0771868, 0.0279714 ],
 		"scale"     : [ 0.435837, 0.435837, 0.435837 ],
 		"visible"       : true,
 		"castShadow"    : false,
@@ -63,9 +63,9 @@
 		"geometry"  : "geo_Monkey",
 		"groups"    : [  ],
 		"material"  : "Material.002",
-		"position"  : [ -1.56903, -5.74724, 0.619385 ],
-		"rotation"  : [ 1.41352, -0.0813772, -3.079 ],
-		"quaternion": [ -0.0106173, -0.649485, -0.758643, 0.0501767 ],
+		"position"  : [ -1.56903, 0.619385, 5.74724 ],
+		"rotation"  : [ -0.152186, -3.07921, -0.0815374 ],
+		"quaternion": [ -0.0429884, -0.995697, -0.0771868, 0.0279714 ],
 		"scale"     : [ 0.435837, 0.435837, 0.435837 ],
 		"visible"       : true,
 		"castShadow"    : false,
@@ -77,9 +77,9 @@
 		"geometry"  : "geo_Monkey",
 		"groups"    : [  ],
 		"material"  : "Material.002",
-		"position"  : [ -3.12912, -5.70927, 0.552267 ],
-		"rotation"  : [ 1.41352, -0.0813772, -3.079 ],
-		"quaternion": [ -0.0106173, -0.649485, -0.758643, 0.0501767 ],
+		"position"  : [ -3.12912, 0.552266, 5.70927 ],
+		"rotation"  : [ -0.152186, -3.07921, -0.0815374 ],
+		"quaternion": [ -0.0429884, -0.995697, -0.0771868, 0.0279714 ],
 		"scale"     : [ 0.435837, 0.435837, 0.435837 ],
 		"visible"       : true,
 		"castShadow"    : false,
@@ -91,9 +91,9 @@
 		"geometry"  : "geo_Monkey",
 		"groups"    : [  ],
 		"material"  : "Material.002",
-		"position"  : [ -6.38633, -3.0044, 0.382167 ],
-		"rotation"  : [ 1.64624, 0.0584253, 1.67059 ],
-		"quaternion": [ 0.477057, 0.55681, 0.489585, 0.471896 ],
+		"position"  : [ -6.38633, 0.382167, 3.0044 ],
+		"rotation"  : [ 0.603388, 1.68639, 0.530866 ],
+		"quaternion": [ 0.00364945, 0.739913, -0.0475347, 0.671011 ],
 		"scale"     : [ 0.435837, 0.435837, 0.435837 ],
 		"visible"       : true,
 		"castShadow"    : false,
@@ -105,9 +105,9 @@
 		"geometry"  : "geo_Monkey",
 		"groups"    : [  ],
 		"material"  : "Material.002",
-		"position"  : [ -6.49933, -1.59307, 0.47164 ],
-		"rotation"  : [ 1.64624, 0.0584253, 1.67059 ],
-		"quaternion": [ 0.477057, 0.55681, 0.489585, 0.471896 ],
+		"position"  : [ -6.49933, 0.47164, 1.59307 ],
+		"rotation"  : [ 0.603388, 1.68639, 0.530866 ],
+		"quaternion": [ 0.00364945, 0.739913, -0.0475347, 0.671011 ],
 		"scale"     : [ 0.435837, 0.435837, 0.435837 ],
 		"visible"       : true,
 		"castShadow"    : false,
@@ -119,9 +119,9 @@
 		"geometry"  : "geo_Monkey",
 		"groups"    : [  ],
 		"material"  : "Material.002",
-		"position"  : [ -6.62979, -0.234131, 0.53384 ],
-		"rotation"  : [ 1.64624, 0.0584253, 1.67059 ],
-		"quaternion": [ 0.477057, 0.55681, 0.489585, 0.471896 ],
+		"position"  : [ -6.62979, 0.53384, 0.234131 ],
+		"rotation"  : [ 0.603388, 1.68639, 0.530866 ],
+		"quaternion": [ 0.00364945, 0.739913, -0.0475347, 0.671011 ],
 		"scale"     : [ 0.435837, 0.435837, 0.435837 ],
 		"visible"       : true,
 		"castShadow"    : false,
@@ -133,9 +133,9 @@
 		"geometry"  : "geo_Monkey",
 		"groups"    : [  ],
 		"material"  : "Material.002",
-		"position"  : [ -6.71367, 1.00815, 0.629835 ],
-		"rotation"  : [ 1.64624, 0.0584253, 1.67059 ],
-		"quaternion": [ 0.477057, 0.55681, 0.489585, 0.471896 ],
+		"position"  : [ -6.71367, 0.629835, -1.00815 ],
+		"rotation"  : [ 0.603388, 1.68639, 0.530866 ],
+		"quaternion": [ 0.00364945, 0.739913, -0.0475347, 0.671011 ],
 		"scale"     : [ 0.435837, 0.435837, 0.435837 ],
 		"visible"       : true,
 		"castShadow"    : false,
@@ -147,9 +147,9 @@
 		"geometry"  : "geo_Monkey",
 		"groups"    : [  ],
 		"material"  : "Material.002",
-		"position"  : [ -2.01044, -24.3436, 1.38733 ],
-		"rotation"  : [ -1.62112, -2.94987, -0.136972 ],
-		"quaternion": [ -0.11614, -0.679574, -0.724169, 0.0164388 ],
+		"position"  : [ -2.01044, 1.38733, 24.3436 ],
+		"rotation"  : [ -0.076585, 3.00715, -0.193494 ],
+		"quaternion": [ 0.0937477, 0.992596, 0.0315343, 0.0704984 ],
 		"scale"     : [ 9.16001, 9.16001, 9.16001 ],
 		"visible"       : true,
 		"castShadow"    : false,
@@ -161,9 +161,9 @@
 		"geometry"  : "geo_Monkey",
 		"groups"    : [  ],
 		"material"  : "Material.002",
-		"position"  : [ -4.29219, 7.9754, 1.82628 ],
-		"rotation"  : [ 1.59482, -0.0807133, 0.213986 ],
-		"quaternion": [ 0.713888, 0.0483276, 0.103242, 0.69092 ],
+		"position"  : [ -4.29219, 1.82628, -7.9754 ],
+		"rotation"  : [ 0.0415421, 0.213278, 0.0825887 ],
+		"quaternion": [ 0.0162409, 0.107176, 0.0388305, 0.993349 ],
 		"scale"     : [ 1, 1, 1 ],
 		"visible"       : true,
 		"castShadow"    : false,
@@ -175,9 +175,9 @@
 		"geometry"  : "geo_Monkey",
 		"groups"    : [  ],
 		"material"  : "Material.002",
-		"position"  : [ 2.15176, 8.06532, 1.89188 ],
-		"rotation"  : [ 1.59482, -0.0807133, 0.213986 ],
-		"quaternion": [ 0.713888, 0.0483276, 0.103242, 0.69092 ],
+		"position"  : [ 2.15176, 1.89188, -8.06532 ],
+		"rotation"  : [ 0.0415421, 0.213278, 0.0825887 ],
+		"quaternion": [ 0.0162409, 0.107176, 0.0388305, 0.993349 ],
 		"scale"     : [ 1, 1, 1 ],
 		"visible"       : true,
 		"castShadow"    : false,
@@ -189,9 +189,9 @@
 		"geometry"  : "geo_Monkey",
 		"groups"    : [  ],
 		"material"  : "Material.002",
-		"position"  : [ -0.712512, 8.09784, 2.115 ],
-		"rotation"  : [ 1.59482, -0.0807133, 0.213986 ],
-		"quaternion": [ 0.713888, 0.0483276, 0.103242, 0.69092 ],
+		"position"  : [ -0.712512, 2.115, -8.09784 ],
+		"rotation"  : [ 0.0415421, 0.213278, 0.0825887 ],
+		"quaternion": [ 0.0162409, 0.107176, 0.0388305, 0.993349 ],
 		"scale"     : [ 1, 1, 1 ],
 		"visible"       : true,
 		"castShadow"    : false,
@@ -203,9 +203,9 @@
 		"geometry"  : "geo_Cube",
 		"groups"    : [  ],
 		"material"  : "Material",
-		"position"  : [ -1.00097, 8.75555, 1.31948 ],
-		"rotation"  : [ 0, -0, 0 ],
-		"quaternion": [ 0, 0, 0, 1 ],
+		"position"  : [ -1.00097, 1.31948, -8.75555 ],
+		"rotation"  : [ -1.5708, 0, 0 ],
+		"quaternion": [ -0.707107, 0, 0, 0.707107 ],
 		"scale"     : [ 6.13, 0.07, 1.69 ],
 		"visible"       : true,
 		"castShadow"    : false,
@@ -217,9 +217,9 @@
 		"geometry"  : "geo_Cube",
 		"groups"    : [  ],
 		"material"  : "Material",
-		"position"  : [ 2.48452, -7.48693, 2.72485 ],
-		"rotation"  : [ 0.220417, 0.0752244, -0.181029 ],
-		"quaternion": [ 0.112836, 0.0272876, -0.093898, 0.988791 ],
+		"position"  : [ 2.48452, 2.72485, 7.48693 ],
+		"rotation"  : [ -1.33663, -0.180512, -0.0764693 ],
+		"quaternion": [ -0.619393, -0.0471007, -0.0856912, 0.778968 ],
 		"scale"     : [ 0.35, 0.89, 3.31 ],
 		"visible"       : true,
 		"castShadow"    : false,
@@ -231,9 +231,9 @@
 		"geometry"  : "geo_Monkey",
 		"groups"    : [  ],
 		"material"  : "Material.002",
-		"position"  : [ 7.72494, 7.1231, 1.69488 ],
-		"rotation"  : [ 1.83559, -0.0831609, 2.04891 ],
-		"quaternion": [ 0.433893, 0.664936, 0.535835, 0.287189 ],
+		"position"  : [ 7.72494, 1.69488, -7.1231 ],
+		"rotation"  : [ 0.105857, 2.05554, -0.179216 ],
+		"quaternion": [ 0.103735, 0.849073, -0.0912881, 0.509882 ],
 		"scale"     : [ 1, 1, 1 ],
 		"visible"       : true,
 		"castShadow"    : false,
@@ -245,9 +245,9 @@
 		"geometry"  : "geo_Monkey",
 		"groups"    : [  ],
 		"material"  : "Material.002",
-		"position"  : [ -6.33464, 6.63615, 0.566791 ],
-		"rotation"  : [ 1.32714, 0.0325614, -2.14729 ],
-		"quaternion": [ 0.304988, -0.535181, -0.697122, 0.366859 ],
+		"position"  : [ -6.33464, 0.566791, -6.63615 ],
+		"rotation"  : [ -0.293692, -2.1481, 0.0596867 ],
+		"quaternion": [ -0.0437495, -0.87137, -0.11451, 0.475067 ],
 		"scale"     : [ 1, 1, 1 ],
 		"visible"       : true,
 		"castShadow"    : false,
@@ -259,9 +259,9 @@
 		"geometry"  : "geo_Monkey",
 		"groups"    : [  ],
 		"material"  : "Material.002",
-		"position"  : [ -5.38404, -6.19409, 0.444915 ],
-		"rotation"  : [ 0.991213, -0.18143, -1.03711 ],
-		"quaternion": [ 0.371851, -0.303947, -0.39678, 0.782246 ],
+		"position"  : [ -5.38404, 0.444915, 6.19409 ],
+		"rotation"  : [ -0.875957, -1.00995, 0.346096 ],
+		"quaternion": [ -0.290193, -0.495489, -0.0656431, 0.81607 ],
 		"scale"     : [ 1, 1, 1 ],
 		"visible"       : true,
 		"castShadow"    : false,
@@ -273,9 +273,9 @@
 		"geometry"  : "geo_Monkey",
 		"groups"    : [  ],
 		"material"  : "Material.002",
-		"position"  : [ 3.14775, -4.23088, 1.01484 ],
-		"rotation"  : [ -1.42228, 2.83455, 0.213809 ],
-		"quaternion": [ -0.179128, 0.733783, 0.653701, 0.0463686 ],
+		"position"  : [ 3.14775, 1.01484, 4.23088 ],
+		"rotation"  : [ 0.0829842, -2.93793, 0.313742 ],
+		"quaternion": [ 0.15945, -0.9811, 0.0566266, 0.0938749 ],
 		"scale"     : [ 1, 1, 1 ],
 		"visible"       : true,
 		"castShadow"    : false,
@@ -287,9 +287,9 @@
 		"geometry"  : "geo_Monkey",
 		"groups"    : [  ],
 		"material"  : "Material.002",
-		"position"  : [ -2.66804, -2.15339, 3.00888 ],
-		"rotation"  : [ 1.88197, -0.45787, 2.21705 ],
-		"quaternion": [ 0.470648, 0.644833, 0.595211, 0.0916755 ],
+		"position"  : [ -2.66804, 3.00888, 2.15339 ],
+		"rotation"  : [ -0.218899, 2.34338, -0.685818 ],
+		"quaternion": [ 0.267974, 0.876844, -0.0350883, 0.397623 ],
 		"scale"     : [ 1, 1, 1 ],
 		"visible"       : true,
 		"castShadow"    : false,
@@ -301,9 +301,9 @@
 		"geometry"  : "geo_Cube",
 		"groups"    : [  ],
 		"material"  : "Material",
-		"position"  : [ -3.03125, -1.94366, 0.702044 ],
-		"rotation"  : [ 1.84085, 1.81125, -0.141131 ],
-		"quaternion": [ 0.523567, 0.440581, -0.650981, 0.328619 ],
+		"position"  : [ -3.03125, 0.702044, 1.94366 ],
+		"rotation"  : [ 0.407177, 0.0335041, -1.80895 ],
+		"quaternion": [ 0.137849, -0.148775, -0.771851, 0.602586 ],
 		"scale"     : [ 1.78114, 0.361142, 0.231142 ],
 		"visible"       : true,
 		"castShadow"    : false,
@@ -315,9 +315,9 @@
 		"geometry"  : "geo_Monkey",
 		"groups"    : [  ],
 		"material"  : "Material.002",
-		"position"  : [ 1.24531, 0.137285, 0.620196 ],
-		"rotation"  : [ 2.33987, 0.286025, 1.39476 ],
-		"quaternion": [ 0.662839, 0.627894, 0.147451, 0.38033 ],
+		"position"  : [ 1.24531, 0.620196, -0.137285 ],
+		"rotation"  : [ -0.239212, 1.23621, -1.0337 ],
+		"quaternion": [ 0.199764, 0.548252, -0.339724, 0.737632 ],
 		"scale"     : [ 1, 1, 1 ],
 		"visible"       : true,
 		"castShadow"    : false,
@@ -329,9 +329,9 @@
 		"geometry"  : "geo_Monkey",
 		"groups"    : [  ],
 		"material"  : "Material.002",
-		"position"  : [ -0.2825, 4.27293, 1.81361 ],
-		"rotation"  : [ 0.646062, 0.219349, 0.0105691 ],
-		"quaternion": [ 0.314982, 0.10546, -0.0297641, 0.942751 ],
+		"position"  : [ -0.2825, 1.81361, -4.27293 ],
+		"rotation"  : [ -0.927034, 0.0103158, -0.219361 ],
+		"quaternion": [ -0.443899, 0.0535249, -0.0956176, 0.889351 ],
 		"scale"     : [ 1, 1, 1 ],
 		"visible"       : true,
 		"castShadow"    : false,
@@ -343,9 +343,9 @@
 		"geometry"  : "geo_Cube",
 		"groups"    : [  ],
 		"material"  : "Material",
-		"position"  : [ 0.0422118, 0.199037, 5.53683 ],
-		"rotation"  : [ 0, -0, 0 ],
-		"quaternion": [ 0, 0, 0, 1 ],
+		"position"  : [ 0.0422118, 5.53683, -0.199037 ],
+		"rotation"  : [ -1.5708, 0, 0 ],
+		"quaternion": [ -0.707107, 0, 0, 0.707107 ],
 		"scale"     : [ 1, 1, 1 ],
 		"visible"       : true,
 		"castShadow"    : false,
@@ -357,9 +357,9 @@
 		"geometry"  : "geo_Cube",
 		"groups"    : [  ],
 		"material"  : "Material",
-		"position"  : [ -0.395497, 3.94453, 1.0097 ],
-		"rotation"  : [ 0, -0, 0 ],
-		"quaternion": [ 0, 0, 0, 1 ],
+		"position"  : [ -0.395497, 1.0097, -3.94453 ],
+		"rotation"  : [ -1.5708, 0, 0 ],
+		"quaternion": [ -0.707107, 0, 0, 0.707107 ],
 		"scale"     : [ 1, 1, 1 ],
 		"visible"       : true,
 		"castShadow"    : false,
@@ -371,9 +371,9 @@
 		"geometry"  : "geo_Plane",
 		"groups"    : [  ],
 		"material"  : "Material.001",
-		"position"  : [ 0, -0.11826, 0 ],
-		"rotation"  : [ 0, -0, 0 ],
-		"quaternion": [ 0, 0, 0, 1 ],
+		"position"  : [ 0, -4.04787e-09, 0.11826 ],
+		"rotation"  : [ -1.5708, 0, 0 ],
+		"quaternion": [ -0.707107, 0, 0, 0.707107 ],
 		"scale"     : [ 7.92279, 7.92279, 7.92279 ],
 		"visible"       : true,
 		"castShadow"    : false,
@@ -385,9 +385,9 @@
 		"geometry"  : "geo_Cube",
 		"groups"    : [  ],
 		"material"  : "Material",
-		"position"  : [ 3.65198, -1.49012e-08, 1.07114 ],
-		"rotation"  : [ 0.220417, 0.0752244, -0.181029 ],
-		"quaternion": [ 0.112836, 0.0272876, -0.093898, 0.988791 ],
+		"position"  : [ 3.65198, 1.07114, 5.15649e-08 ],
+		"rotation"  : [ -1.33663, -0.180512, -0.0764693 ],
+		"quaternion": [ -0.619393, -0.0471007, -0.0856911, 0.778968 ],
 		"scale"     : [ 1, 1, 1 ],
 		"visible"       : true,
 		"castShadow"    : false,

utils/exporters/blender/2.65/scripts/addons/io_mesh_threejs/export_threejs.py

@@ -67,6 +67,8 @@ DEFAULTS = {
  }
 }
 
+ROTATE_X_PI2 = mathutils.Quaternion((1.0, 0.0, 0.0), math.radians(-90.0)).to_matrix().to_4x4()
+
 # default colors for debugging (each material gets one distinct color):
 # white, red, green, blue, yellow, cyan, magenta
 COLORS = [0xeeeeee, 0xee0000, 0x00ee00, 0x0000ee, 0xeeee00, 0x00eeee, 0xee00ee]
@@ -1637,7 +1639,12 @@ def generate_objects(data):
             material_ids = generate_material_id_list(obj.material_slots)
             group_ids = generate_group_id_list(obj)
 
-            position, quaternion, scale = obj.matrix_world.decompose()
+            if data["flipyz"]:
+                matrix_world = ROTATE_X_PI2 * obj.matrix_world
+            else:
+                matrix_world = obj.matrix_world
+
+            position, quaternion, scale = matrix_world.decompose()
             rotation = quaternion.to_euler("XYZ")
 
             # use empty material string for multi-material objects
@@ -1682,7 +1689,12 @@ def generate_objects(data):
             object_id = obj.name
             group_ids = generate_group_id_list(obj)
 
-            position, quaternion, scale = obj.matrix_world.decompose()
+            if data["flipyz"]:
+                matrix_world = ROTATE_X_PI2 * obj.matrix_world
+            else:
+                matrix_world = obj.matrix_world
+
+            position, quaternion, scale = matrix_world.decompose()
             rotation = quaternion.to_euler("XYZ")
 
             group_string = ""