diff --git a/dumpster/materials/scripts/dumpster.material b/dumpster/materials/scripts/dumpster.material
index 13298b7..8addb5a 100644
--- a/dumpster/materials/scripts/dumpster.material
+++ b/dumpster/materials/scripts/dumpster.material
@@ -1,5 +1,6 @@
 material Dumpster/Diffuse
 {
+  receive_shadows off
   technique
   {
     pass
@@ -14,6 +15,7 @@ material Dumpster/Diffuse
 
 material Dumpster/Specular
 {
+  receive_shadows off
   technique
   {
     pass
diff --git a/fast_food/materials/scripts/fast_food.material b/fast_food/materials/scripts/fast_food.material
index 325086f..fd7d2c6 100644
--- a/fast_food/materials/scripts/fast_food.material
+++ b/fast_food/materials/scripts/fast_food.material
@@ -1,5 +1,6 @@
 material FastFood/Diffuse
 {
+  receive_shadows off
   technique
   {
     pass
@@ -14,6 +15,7 @@ material FastFood/Diffuse
 
 material FastFood/Specular
 {
+  receive_shadows off
   technique
   {
     pass
@@ -28,6 +30,7 @@ material FastFood/Specular
 
 material FastFood/Normal
 {
+  receive_shadows off
   technique
   {
     pass
diff --git a/gas_station/materials/scripts/gas_station.material b/gas_station/materials/scripts/gas_station.material
index 995acd2..2e89f8f 100644
--- a/gas_station/materials/scripts/gas_station.material
+++ b/gas_station/materials/scripts/gas_station.material
@@ -1,5 +1,6 @@
 material GasStation/Diffuse
 {
+  receive_shadows off
   technique
   {
     pass
@@ -14,6 +15,7 @@ material GasStation/Diffuse
 
 material GasStation/Specular
 {
+  receive_shadows off
   technique
   {
     pass
@@ -28,6 +30,7 @@ material GasStation/Specular
 
 material GasStation/Normal
 {
+  receive_shadows off
   technique
   {
     pass
diff --git a/house_1/materials/scripts/house_1.material b/house_1/materials/scripts/house_1.material
index e3554e6..a322490 100644
--- a/house_1/materials/scripts/house_1.material
+++ b/house_1/materials/scripts/house_1.material
@@ -1,5 +1,6 @@
 material House_1/Diffuse
 {
+  receive_shadows off
   technique
   {
     pass
@@ -14,6 +15,7 @@ material House_1/Diffuse
 
 material House_1/Specular
 {
+  receive_shadows off
   technique
   {
     pass
@@ -28,6 +30,7 @@ material House_1/Specular
 
 material House_1/Normal
 {
+  receive_shadows off
   technique
   {
     pass
diff --git a/house_2/materials/scripts/house_2.material b/house_2/materials/scripts/house_2.material
index 88b6d57..b2be574 100644
--- a/house_2/materials/scripts/house_2.material
+++ b/house_2/materials/scripts/house_2.material
@@ -1,5 +1,6 @@
 material House_2/Diffuse
 {
+  receive_shadows off
   technique
   {
     pass
diff --git a/house_3/materials/scripts/house_3.material b/house_3/materials/scripts/house_3.material
index df6a08a..49794fc 100644
--- a/house_3/materials/scripts/house_3.material
+++ b/house_3/materials/scripts/house_3.material
@@ -1,5 +1,6 @@
 material House_3/Diffuse
 {
+  receive_shadows off
   technique
   {
     pass
diff --git a/mailbox/materials/scripts/mailbox.material b/mailbox/materials/scripts/mailbox.material
index d62e13f..4f2676b 100644
--- a/mailbox/materials/scripts/mailbox.material
+++ b/mailbox/materials/scripts/mailbox.material
@@ -1,5 +1,6 @@
 material Mailbox/Diffuse
 {
+  receive_shadows off
   technique
   {
     pass
@@ -14,6 +15,7 @@ material Mailbox/Diffuse
 
 material Mailbox/Specular
 {
+  receive_shadows off
   technique
   {
     pass
diff --git a/polaris_ranger_ev/materials/scripts/polaris.material b/polaris_ranger_ev/materials/scripts/polaris.material
index a1ae7dc..2431307 100644
--- a/polaris_ranger_ev/materials/scripts/polaris.material
+++ b/polaris_ranger_ev/materials/scripts/polaris.material
@@ -1,5 +1,6 @@
 material Polaris/Diffuse
 {
+  receive_shadows off
   technique
   {
     pass
diff --git a/stop_sign/materials/scripts/stopsign.material b/stop_sign/materials/scripts/stopsign.material
index eff5383..3e0402f 100644
--- a/stop_sign/materials/scripts/stopsign.material
+++ b/stop_sign/materials/scripts/stopsign.material
@@ -1,5 +1,6 @@
 material StopSign/Diffuse
 {
+  receive_shadows off
   technique
   {
     pass
@@ -14,6 +15,7 @@ material StopSign/Diffuse
 
 material StopSign/Specular
 {
+  receive_shadows off
   technique
   {
     pass