Fix texture lookup

--HG--
branch : develop

code/ryzom/tools/client/r2_islands_textures/screenshot_islands.cpp

@@ -109,6 +109,7 @@ void CScreenshotIslands::init()
 		}
 	}
 	CPath::remapExtension("dds", "tga", true);
+	CPath::remapExtension("dds", "png", true);
 
 	// get the scenario entry points file
 	CConfigFile::CVar * epFile = cf.getVarPtr("CompleteIslandsFile");

code/ryzom/tools/server/build_world_packed_col/build_world_packed_col.cpp

@@ -111,6 +111,7 @@ int main(int argc, char* argv[])
 		CPath::addSearchPath(builderConfig.SearchPaths[k], true, false);
 	}
 	CPath::remapExtension("dds", "tga", true);
+	CPath::remapExtension("dds", "png", true);
 	//
 	R2::CScenarioEntryPoints &sep = R2::CScenarioEntryPoints::getInstance();
 	try