Commit: a0c1f009bf3e1b12afc5eba4c784c9ba448a6451
Author: gaiaclary
Date: Tue Feb 18 21:53:25 2014 +0100
https://developer.blender.org/rBa0c1f009bf3e1b12afc5eba4c784c9ba448a6451
Added Maya restpose_matrix support via custom properties to Collada exporter
===================================================================
M source/blender/collada/ControllerExporter.cpp
===================================================================
diff --git a/source/blender/collada/ControllerExporter.cpp
b/source/blender/collada/ControllerExporter.cpp
index 17ac547..b2b1694 100644
--- a/source/blender/collada/ControllerExporter.cpp
+++ b/source/blender/collada/ControllerExporter.cpp
@@ -42,6 +42,7 @@ extern "C" {
#include "BKE_mesh.h"
#include "BKE_global.h"
#include "BKE_library.h"
+#include "BKE_idprop.h"
}
#include "ED_armature.h"
@@ -466,6 +467,80 @@ std::string ControllerExporter::add_joints_source(Object
*ob_arm, ListBase *defb
return source_id;
}
+/**
+ * This function creates an arbitrary rest pose matrix from
+ * data provided as custom properties. This is a workaround
+ * for support of maya's restpose matrix which can be arbitrary
+ * in opposition to Blender where the Rest pose Matrix is always
+ * the Identity matrix.
+ *
+ * The custom properties are:
+ *
+ * restpose_scale_x
+ * restpose_scale_y
+ * restpose_scale_z
+ *
+ * restpose_rot_x
+ * restpose_rot_y
+ * restpose_rot_z
+ *
+ * restpose_loc_x
+ * restpose_loc_y
+ * restpose_loc_z
+ *
+ * The matrix is only setup if the scale AND the rot properties are defined.
+ * The presence of the loc properties is optional.
+ *
+ * This feature has been implemented to support Second Life "Fitted Mesh"
+ * TODO: Check if an arbitrary rest pose matrix makes sense within Blender.
+ * Eventually leverage the custom property data into an "official"
+ * Edit_bone Property
+ */
+static bool create_restpose_mat(Bone *bone, float mat[4][4])
+{
+ bool is_valid = false;
+ const double PI = 3.1415926535897932384626433832795;
+
+ IDProperty *scale_x = IDP_GetPropertyFromGroup(bone->prop,
"restpose_scale_x");
+ IDProperty *scale_y = IDP_GetPropertyFromGroup(bone->prop,
"restpose_scale_y");
+ IDProperty *scale_z = IDP_GetPropertyFromGroup(bone->prop,
"restpose_scale_z");
+
+ if (scale_x && scale_y && scale_z) {
+
+ IDProperty *rot_x = IDP_GetPropertyFromGroup(bone->prop,
"restpose_rot_x");
+ IDProperty *rot_y = IDP_GetPropertyFromGroup(bone->prop,
"restpose_rot_y");
+ IDProperty *rot_z = IDP_GetPropertyFromGroup(bone->prop,
"restpose_rot_z");
+
+ if (rot_x && rot_y && rot_z) {
+ is_valid = true;
+
+ float loc[3] = {0,0,0};
+ IDProperty *loc_x =
IDP_GetPropertyFromGroup(bone->prop, "restpose_loc_x");
+ IDProperty *loc_y =
IDP_GetPropertyFromGroup(bone->prop, "restpose_loc_y");
+ IDProperty *loc_z =
IDP_GetPropertyFromGroup(bone->prop, "restpose_loc_z");
+
+ if (loc_x && loc_y && loc_z) {
+ loc[0] = IDP_Float(loc_x);
+ loc[1] = IDP_Float(loc_y);
+ loc[2] = IDP_Float(loc_z);
+ }
+
+ float scale[3];
+ scale[0] = IDP_Float(scale_x);
+ scale[1] = IDP_Float(scale_y);
+ scale[2] = IDP_Float(scale_z);
+
+ float rot[3];
+ rot[0] = PI * IDP_Float(rot_x) / 180;
+ rot[1] = PI * IDP_Float(rot_y) / 180;
+ rot[2] = PI * IDP_Float(rot_z) / 180;
+
+ loc_eulO_size_to_mat4(mat, loc, rot, scale, 6);
+ }
+ }
+ return is_valid;
+}
+
std::string ControllerExporter::add_inv_bind_mats_source(Object *ob_arm,
ListBase *defbase, const std::string& controller_id)
{
std::string source_id = controller_id + BIND_POSES_SOURCE_ID_SUFFIX;
@@ -507,6 +582,7 @@ std::string
ControllerExporter::add_inv_bind_mats_source(Object *ob_arm, ListBas
float world[4][4];
float inv_bind_mat[4][4];
+
// OPEN_SIM_COMPATIBILITY
if (export_settings->open_sim) {
// Only translations, no rotation vs armature
@@ -520,6 +596,12 @@ std::string
ControllerExporter::add_inv_bind_mats_source(Object *ob_arm, ListBas
mul_m4_m4m4(world, ob_arm->obmat,
pchan->bone->arm_mat);
}
+ float restpose_mat[4][4];
+ bool is_valid = create_restpose_mat(pchan->bone,
restpose_mat);
+ if (is_valid) {
+ mul_m4_m4m4(world, world, restpose_mat);
+ }
+
invert_m4_m4(mat, world);
converter.mat4_to_dae(inv_bind_mat, mat);
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