diff --git a/materials.xml b/materials.xml
index 42062a9da..796a1ec4d 100644
--- a/materials.xml
+++ b/materials.xml
@@ -2670,13 +2670,19 @@ Shared parameters for various materials.
  </emissive>
  <object>
   <path>Models/Buildings/big-apartment.ac</path>
-  <coverage>1000000</coverage>
+  <coverage>10000000</coverage>
   <range-m>10000</range-m>
   <billboard>false</billboard>
  </object>
+ <object>
+  <path>Models/Buildings/small-glass-office-building.ac</path>
+  <coverage>1000000</coverage>
+  <range-m>5000</range-m>
+  <billboard>false</billboard>
+ </object>
  <object>
   <path>Models/Buildings/big-church.ac</path>
-  <coverage>5000000</coverage>
+  <coverage>10000000</coverage>
   <range-m>5000</range-m>
   <billboard>false</billboard>
  </object>
@@ -2686,6 +2692,18 @@ Shared parameters for various materials.
   <range-m>5000</range-m>
   <billboard>false</billboard>
  </object>
+ <object>
+  <path>Models/Trees/deciduous-tree.ac</path>
+  <coverage>500000</coverage>
+  <range-m alias="/params/forest/tree-range-m"/>
+  <billboard>true</billboard>
+ </object>
+ <object>
+  <path>Models/Trees/coniferous-tree.ac</path>
+  <coverage>1000000</coverage>
+  <range-m alias="/params/forest/tree-range-m"/>
+  <billboard>true</billboard>
+ </object>
 </material>
 
 <material>
@@ -2718,6 +2736,36 @@ Shared parameters for various materials.
    <b>0.0</b>
    <a>1.0</a>
   </emissive>
+ <object>
+  <path>Models/Buildings/small-glass-office-building.ac</path>
+  <coverage>1000000</coverage>
+  <range-m>5000</range-m>
+  <billboard>false</billboard>
+ </object>
+ <object>
+  <path>Models/Buildings/big-church.ac</path>
+  <coverage>10000000</coverage>
+  <range-m>5000</range-m>
+  <billboard>false</billboard>
+ </object>
+ <object>
+  <path>Models/Buildings/water-tower.ac</path>
+  <coverage>50000000</coverage>
+  <range-m>5000</range-m>
+  <billboard>false</billboard>
+ </object>
+ <object>
+  <path>Models/Trees/deciduous-tree.ac</path>
+  <coverage>250000</coverage>
+  <range-m alias="/params/forest/tree-range-m"/>
+  <billboard>true</billboard>
+ </object>
+ <object>
+  <path>Models/Trees/coniferous-tree.ac</path>
+  <coverage>500000</coverage>
+  <range-m alias="/params/forest/tree-range-m"/>
+  <billboard>true</billboard>
+ </object>
 </material>
 
 <material>
@@ -2762,6 +2810,18 @@ Shared parameters for various materials.
   <range-m>10000</range-m>
   <billboard>false</billboard>
  </object>
+ <object>
+  <path>Models/Trees/deciduous-tree.ac</path>
+  <coverage>500000</coverage>
+  <range-m alias="/params/forest/tree-range-m"/>
+  <billboard>true</billboard>
+ </object>
+ <object>
+  <path>Models/Trees/coniferous-tree.ac</path>
+  <coverage>1000000</coverage>
+  <range-m alias="/params/forest/tree-range-m"/>
+  <billboard>true</billboard>
+ </object>
 </material>
 
 <material>