need to nix primitive id to debug shader

hw3d/Prism.h

@@ -158,22 +158,22 @@ public:
 		// near base indices
 		for( unsigned short iLong = 0; iLong < longDiv; iLong++ )
 		{
-			const auto i = iLong * 2;
-			const auto mod = longDiv * 2;
+			const auto i = iLong;
+			const auto mod = longDiv;
 			// near
 			indices.push_back( i + iBaseNear );
 			indices.push_back( iCenterNear );
-			indices.push_back( (i + 2) % mod + iBaseNear );
+			indices.push_back( (i + 1) % mod + iBaseNear );
 		}
 		// far base indices
 		for( unsigned short iLong = 0; iLong < longDiv; iLong++ )
 		{
-			const auto i = iLong * 2;
-			const auto mod = longDiv * 2;
+			const auto i = iLong;
+			const auto mod = longDiv;
 			// far
 			indices.push_back( iCenterFar );
-			indices.push_back( i + 1 + iBaseFar );
-			indices.push_back( (i + 3) % mod + iBaseFar );
+			indices.push_back( i + iBaseFar );
+			indices.push_back( (i + 1) % mod + iBaseFar );
 		}
 		// fusilage indices
 		for( unsigned short iLong = 0; iLong < longDiv; iLong++ )