Make runway effect use png textures by default. Add runway png normalmap. Provide runway-dds.eff

Signed-off-by: Emilian Huminiuc <emilianh@gmail.com>

Effects/runway-dds.eff

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<PropertyList>
+	<name>Effects/runway-dds</name>
+	<inherits-from>Effects/runway</inherits-from>
+	<parameters>
+		<texture n="4">
+			<image>Textures/Runway/rwy-normalmap.dds</image>
+		</texture>
+		<normalmap_dds>1.0</normalmap_dds>
+	</parameters>
+</PropertyList>

Effects/runway.eff

@@ -4,7 +4,7 @@
 	<inherits-from>Effects/terrain-default</inherits-from>
 	<parameters>
 		<texture n="4">
-			<image>Textures.high/Runway/rwy-normalmap.dds</image>
+			<image>Textures/Runway/rwy-normalmap.png</image>
 			<filter>linear-mipmap-linear</filter>
 			<wrap-s>repeat</wrap-s>
 			<wrap-t>repeat</wrap-t>
@@ -15,7 +15,7 @@
 			<!-- use this form for a cube cross -->
 			<!--<image>Aircraft/Generic/Effects/CubeCrosses/blue_sky_big.jpg</image>-->
 
-				<!-- use this form for a 6 image cube map -->
+			<!-- use this form for a 6 image cube map -->
 				<images>
 					<positive-x>Aircraft/Generic/Effects/CubeMaps/fair-sky/fair-sky_px.png</positive-x>
 					<negative-x>Aircraft/Generic/Effects/CubeMaps/fair-sky/fair-sky_nx.png</negative-x>
@@ -41,7 +41,7 @@
 			<internal-format>normalized</internal-format>
 		</texture>
 		<texture n="8">
-			<image>Textures.high/Runway/rwy-reflect.png</image>
+			<image>Textures/Runway/rwy-reflect.png</image>
 			<filter>linear-mipmap-linear</filter>
 			<wrap-s>repeat</wrap-s>
 			<wrap-t>repeat</wrap-t>
@@ -50,11 +50,10 @@
 		<rendering-hint>transparent</rendering-hint>
 		<shade-model>smooth</shade-model>
 		<rainbowiness type="float">0.01</rainbowiness>
-		<fresneliness>0.01</fresneliness>
-		<noisiness>0.15</noisiness>
-		<!-- 			<refl_correction>0.0</refl_correction> -->
-		<ambient_correction>-0.15</ambient_correction>
-		<normalmap_dds>1</normalmap_dds>
+		<fresneliness type="float">0.01</fresneliness>
+		<noisiness type="float">0.15</noisiness>
+		<ambient_correction type="float">-0.15</ambient_correction>
+		<normalmap_dds type="float">0.0</normalmap_dds>
 		<vertex-program-two-side type="bool">false</vertex-program-two-side>
 		<cull-face>back</cull-face>
 		<wetness>