Add back legacy 3d shader function

Author: Vortex2Oblivion

source/modding/ModchartUtilities.hx

@@ -2806,7 +2806,21 @@ class ModchartUtilities {
 			return totalTime;
 		});
 
-		// shader bullshit
+		// shader bullshit
+
+setLuaFunction("setActor3DShader", function(id:String, ?speed:Float = 3, ?frequency:Float = 10, ?amplitude:Float = 0.25) {
+			var actor = getActorByName(id);
+
+			if (actor != null) {
+				var funnyShader:shaders.Shaders.ThreeDEffect = shaders.Shaders.newEffect("3d");
+				funnyShader.waveSpeed = speed;
+				funnyShader.waveFrequency = frequency;
+				funnyShader.waveAmplitude = amplitude;
+				lua_Shaders.set(id, funnyShader);
+
+				actor.shader = funnyShader.shader;
+			}
+		});
 
 		setLuaFunction("setActorNoShader", function(id:String) {
 			var actor = getActorByName(id);