Include only tangent in mesh data and calculate binormal on the fly

[libs/gl.git] / blender / io_mspgl / export_mesh.py

diff --git a/blender/io_mspgl/export_mesh.py b/blender/io_mspgl/export_mesh.py
index 7b8fd771cd0ceab2c926a1be0db9cc3207745ab1..16f9514a97402443cadd8bb12d2ce1ca6e2170ee 100644 (file)
--- a/blender/io_mspgl/export_mesh.py
+++ b/blender/io_mspgl/export_mesh.py
@@ -1,4 +1,5 @@
 import itertools
+import os
 import bpy
 import mathutils
 
@@ -7,6 +8,7 @@ class MeshExporter:
                self.show_progress = True
                self.use_strips = True
                self.use_degen_tris = False
+               self.export_all = False
 
        def join_strips(self, strips):
                big_strip = []
@@ -26,17 +28,26 @@ class MeshExporter:
                return big_strip
 
        def export_to_file(self, context, out_fn):
-               obj = context.active_object
+               if self.export_all:
+                       objs = [o for o in context.selected_objects if o.type=="MESH"]
+               else:
+                       objs = [context.active_object]
 
                from .util import Progress
 
+               path, base = os.path.split(out_fn)
+               base, ext = os.path.splitext(base)
+
                progress = Progress(self.show_progress and context)
-               progress.push_task("", 0.0, 0.95)
-               resource = self.export_mesh(context, obj, progress)
+               for i, obj in enumerate(objs):
+                       if self.export_all:
+                               out_fn = os.path.join(path, obj.data.name+ext)
 
-               with open(out_fn, "w") as out_file:
-                       for s in resource.statements:
-                               s.write_to_file(out_file)
+                       progress.push_task_slice(obj.data.name, i, len(objs))
+                       resource = self.export_mesh(context, obj, progress)
+
+                       resource.write_to_file(out_fn)
+                       progress.pop_task()
 
        def export_mesh(self, context, mesh_or_obj, progress):
                from .mesh import Mesh, create_mesh_from_object
@@ -49,10 +60,12 @@ class MeshExporter:
                        progress.pop_task()
 
                from .datafile import Resource, Statement, Token
-               resource = Resource(mesh.name+".mesh")
+               resource = Resource(mesh.name+".mesh", "mesh")
                statements = resource.statements
 
                st = Statement("vertices", Token("NORMAL3"))
+               if mesh.vertices[0].color:
+                       st.append(Token("COLOR4_UBYTE"))
                if mesh.uv_layers:
                        for u in mesh.uv_layers:
                                size = str(len(u.uvs[0]))
@@ -60,22 +73,26 @@ class MeshExporter:
                                        st.append(Token("TEXCOORD"+size))
                                else:
                                        st.append(Token("TEXCOORD{}_{}".format(size, u.unit)))
-                       if mesh.tbn_vecs:
+                       if mesh.tangent_vecs:
                                st.append(Token("TANGENT3"))
-                               st.append(Token("BINORMAL3"))
                if mesh.vertex_groups:
-                       st.append(Token("ATTRIB{}_5".format(mesh.max_groups_per_vertex*2)))
+                       st.append(Token("GROUP{}".format(mesh.max_groups_per_vertex)))
+                       st.append(Token("WEIGHT{}".format(mesh.max_groups_per_vertex)))
                st.append(Token("VERTEX3"))
 
                normal = None
+               color = None
                uvs = [None]*len(mesh.uv_layers)
                tan = None
-               bino = None
                group = None
+               weight = None
                for v in mesh.vertices:
                        if v.normal!=normal:
                                st.sub.append(Statement("normal", *v.normal))
                                normal = v.normal
+                       if v.color!=color:
+                               st.sub.append(Statement("color", *v.color))
+                               color = v.color
                        for i, u in enumerate(mesh.uv_layers):
                                if v.uvs[i]!=uvs[i]:
                                        if u.unit==0:
@@ -83,21 +100,19 @@ class MeshExporter:
                                        else:
                                                st.sub.append(Statement("multitexcoord", u.unit, *v.uvs[i]))
                                        uvs[i] = v.uvs[i]
-                       if mesh.tbn_vecs:
+                       if mesh.tangent_vecs:
                                if v.tan!=tan:
                                        st.sub.append(Statement("tangent", *v.tan))
                                        tan = v.tan
-                               if v.bino!=bino:
-                                       st.sub.append(Statement("binormal", *v.bino))
-                                       bino = v.bino
                        if mesh.vertex_groups:
-                               group_attr = [(group_index_map[g.group], g.weight*v.group_weight_scale) for g in v.groups[:mesh.max_groups_per_vertex]]
-                               while len(group_attr)<mesh.max_groups_per_vertex:
-                                       group_attr.append((0, 0.0))
-                               group_attr = list(itertools.chain(*group_attr))
-                               if group_attr!=group:
-                                       st.sub.append(Statement("attrib", 5, *group_attr))
-                                       group = group_attr
+                               v_group = [g.group for g in v.groups]
+                               v_weight = [g.weight for g in v.groups]
+                               if v_group!=group:
+                                       st.sub.append(Statement("group", *v_group))
+                                       group = v_group
+                               if v_weight!=weight:
+                                       st.sub.append(Statement("weight", *v_weight))
+                                       weight = v_weight
                        st.sub.append(Statement("vertex", *v.co))
 
                statements.append(st)
@@ -113,19 +128,19 @@ class MeshExporter:
                                        st.sub.append(Statement("indices", *(v.index for v in s[i:i+32])))
                                statements.append(st)
                else:
-                       st = Statement("batch", "TRIANGLES")
+                       st = Statement("batch", Token('TRIANGLES'))
                        for f in mesh.faces:
                                st.sub.append(Statement("indices", *(v.index for v in f.vertices)))
                        statements.append(st)
 
                if mesh.lines:
-                       st = Statement("batch", "LINES")
+                       st = Statement("batch", Token('LINES'))
                        for l in mesh.lines:
                                st.sub.append(Statement("indices", *(v.index for v in l.vertices)))
                        statements.append(st)
 
                if mesh.winding_test:
-                       statements.append(Statement("winding", "COUNTERCLOCKWISE"))
+                       statements.append(Statement("winding", Token('COUNTERCLOCKWISE')))
 
                progress.set_progress(1.0)