Rename and place mas mhd related assets more consistently

data/assets/mas.scene

@@ -17,8 +17,7 @@ asset.require('util/default_keybindings')
 
 local sunAsset = asset.require('scene/solarsystem/sun/sun')
 -- local earthAsset = asset.require('scene/solarsystem/planets/earth/earth')
-local masMhdAsset = asset.require('scene/solarsystem/model/mas/mas')
--- local testSphere = asset.require('scene/solarsystem/model/mas/testsphere')
+local masMhdAsset = asset.require('scene/solarsystem/model/mas/mas_mhd')
 
 -- This causes crash because the renderable is not removed properly before the next frame
 local toggleMas = function ()

data/assets/scene/solarsystem/model/mas/mas_mhd.asset

@@ -12,7 +12,7 @@ local Mas_MHD = {
         Renderable = {
             Type = "RenderableTimeVaryingVolume",
             StepSize = 0.001,
-            TransferFunction = "${DATA}/mas/mas_transfer_function.txt",
+            TransferFunction = asset.localResource("transferfunctions/mas_mhd.txt"),
             SourceDirectory = "${DATA}/mas/raw",
             LowerValueBound = 0,
             UpperValueBound = 1,