Export back face culling flag, textures, and transparency flag.

git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@4052 542714f4-19e9-0310-aa3c-eee0fc999fb1

src/java/com/threerings/jme/model/ModelMesh.java

@@ -76,15 +76,21 @@ public class ModelMesh extends TriMesh
     }
     
     /**
-     * Configures this mesh based on the given (sub-)properties.
+     * Configures this mesh based on the given parameters and (sub-)properties.
+     *
+     * @param texture the texture specified in the model export, if any (can be
+     * overridden by a texture specified in the properties)
+     * @param solid whether or not the mesh allows back face culling
+     * @param transparent whether or not the mesh is (partially) transparent
      */
-    public void configure (Properties props)
+    public void configure (
+        boolean solid, String texture, boolean transparent, Properties props)
     {
         _boundingType = "sphere".equals(props.getProperty("bound")) ?
             SPHERE_BOUND : BOX_BOUND;
-        _texture = props.getProperty("texture");
-        _solid = !"false".equals(props.getProperty("solid"));
-        _transparent = "true".equals(props.getProperty("transparent"));
+        _texture = props.getProperty("texture", texture);
+        _solid = solid;
+        _transparent = transparent;
     }
     
     /**

src/java/com/threerings/jme/tools/ModelDef.java

@@ -108,6 +108,15 @@ public class ModelDef
     /** A rigid triangle mesh. */
     public static class TriMeshDef extends SpatialDef
     {
+        /** Whether or not the mesh allows back face culling. */
+        public boolean solid;
+        
+        /** The texture of the mesh, if any. */
+        public String texture;
+        
+        /** Whether or not the mesh is (partially) transparent. */
+        public boolean transparent;
+        
         /** The vertices of the mesh. */
         public ArrayList<Vertex> vertices = new ArrayList<Vertex>();
         
@@ -139,7 +148,7 @@ public class ModelDef
         protected ModelMesh configure (ModelMesh mmesh, Properties props)
         {
             // configure using properties
-            mmesh.configure(props);
+            mmesh.configure(solid, texture, transparent, props);
             
             // set the various buffers
             int vsize = vertices.size();

src/ms/TRModelExporter.mcr

@@ -123,6 +123,15 @@ macroScript TRModelExporter category:"File" \
             outFile
         writePoint3Attr " scale" xform.scalePart outFile
         if isMesh then (
+            format " solid=\"%\"" node.backFaceCull to:outFile
+            if node.material != undefined and
+                isKindOf node.material.diffuseMap BitmapTexture do (
+                format " texture=\"%\"" (filenameFromPath \
+                    node.material.diffuseMap.filename) to:outFile
+                format " transparent=\"%\"" \
+                    (node.material.diffuseMap.bitmap.hasAlpha or \
+                        node.material.opacityMap != undefined) to:outFile
+            )
             format ">\n" to:outFile
             if isProperty node #skin do (
                 setCommandPanelTaskMode mode:#modify