Add feature to blender exporter to embed textures in .json file as base64...

Add feature to blender exporter to embed textures in .json file as base64 string, much like three.js editor

utils/exporters/blender/addons/io_three/__init__.py

@@ -378,6 +378,10 @@ def restore_export_settings(properties, settings):
         constants.COPY_TEXTURES,
         constants.EXPORT_OPTIONS[constants.COPY_TEXTURES])
 
+    properties.option_embed_textures = settings.get(
+        constants.EMBED_TEXTURES,
+        constants.EXPORT_OPTIONS[constants.EMBED_TEXTURES])
+
     properties.option_texture_folder = settings.get(
         constants.TEXTURE_FOLDER,
         constants.EXPORT_OPTIONS[constants.TEXTURE_FOLDER])
@@ -468,6 +472,7 @@ def set_settings(properties):
         constants.COMPRESSION: properties.option_compression,
         constants.INDENT: properties.option_indent,
         constants.COPY_TEXTURES: properties.option_copy_textures,
+        constants.EMBED_TEXTURES: properties.option_embed_textures,
         constants.TEXTURE_FOLDER: properties.option_texture_folder,
 
         constants.SCENE: properties.option_export_scene,
@@ -521,6 +526,10 @@ def animation_options():
 
     return anim
 
+def resolve_conflicts(self, context):
+    if(self.option_embed_textures):
+        self.option_copy_textures = False;
+
 class ExportThree(bpy.types.Operator, ExportHelper):
     """Class that handles the export properties"""
 
@@ -670,6 +679,12 @@ class ExportThree(bpy.types.Operator, ExportHelper):
         description="Copy textures",
         default=constants.EXPORT_OPTIONS[constants.COPY_TEXTURES])
 
+    option_embed_textures = BoolProperty(
+        name="Embed textures",
+        description="Embed base64 textures in .json",
+        default=constants.EXPORT_OPTIONS[constants.EMBED_TEXTURES],
+        update=resolve_conflicts)
+
     option_texture_folder = StringProperty(
         name="Texture folder",
         description="add this folder to textures path",
@@ -915,6 +930,10 @@ class ExportThree(bpy.types.Operator, ExportHelper):
 
         row = layout.row()
         row.prop(self.properties, 'option_copy_textures')
+        row.enabled = not self.properties.option_embed_textures
+
+        row = layout.row()
+        row.prop(self.properties, 'option_embed_textures')
 
         row = layout.row()
         row.prop(self.properties, 'option_texture_folder')

utils/exporters/blender/addons/io_three/constants.py

@@ -94,6 +94,7 @@ HIERARCHY = 'hierarchy'
 FACE_MATERIALS = 'faceMaterials'
 SKINNING = 'skinning'
 COPY_TEXTURES = 'copyTextures'
+EMBED_TEXTURES = 'embedTextures'
 TEXTURE_FOLDER = 'textureFolder'
 ENABLE_PRECISION = 'enablePrecision'
 PRECISION = 'precision'
@@ -154,6 +155,7 @@ EXPORT_OPTIONS = {
     LIGHTS: False,
     HIERARCHY: False,
     COPY_TEXTURES: True,
+    EMBED_TEXTURES: False,
     TEXTURE_FOLDER: '',
     LOGGING: DEBUG,
     ENABLE_PRECISION: True,

utils/exporters/blender/addons/io_three/exporter/image.py

 import os
+import base64
 from .. import constants, logger
 from . import base_classes, io, api
 
@@ -11,8 +12,17 @@ class Image(base_classes.BaseNode):
         logger.debug("Image().__init__(%s)", node)
         base_classes.BaseNode.__init__(self, node, parent, constants.IMAGE)
 
-        texture_folder = self.scene.options.get(constants.TEXTURE_FOLDER, "")
-        self[constants.URL] = os.path.join(texture_folder, api.image.file_name(self.node))
+        if(self.scene.options.get(constants.EMBED_TEXTURES, False)):
+            texturefile = open(api.image.file_path(self.node),"rb")
+            extension = os.path.splitext(api.image.file_path(self.node))[1][1:].strip().lower()
+            if(extension == 'jpg') :
+                extension = 'jpeg'
+            self[constants.URL] = "data:image/" + extension + ";base64," + base64.b64encode(texturefile.read()).decode("utf-8")
+            texturefile.close();
+        else:
+            texture_folder = self.scene.options.get(constants.TEXTURE_FOLDER, "")
+            self[constants.URL] = os.path.join(texture_folder, api.image.file_name(self.node))
+
 
     @property
     def destination(self):