diff --git a/leenkx/Sources/leenkx/renderpath/Sky.hx b/leenkx/Sources/leenkx/renderpath/Sky.hx
index 15b37f4e..e494469b 100644
--- a/leenkx/Sources/leenkx/renderpath/Sky.hx
+++ b/leenkx/Sources/leenkx/renderpath/Sky.hx
@@ -93,11 +93,11 @@ class Sky {
 
 		var density = raw.sky_density;
 		var densityVec = new Vec3(density[0], density[1], density[2]);
-		var sunElevation = raw.sky_sun_elevation != null ? raw.sky_sun_elevation : 0.0;
-		var sunRotation = raw.sky_sun_rotation != null ? raw.sky_sun_rotation : 0.0;
-		var sunSize = raw.sky_sun_size != null ? raw.sky_sun_size : 0.545;
-		var sunIntensity = raw.sky_sun_intensity != null ? raw.sky_sun_intensity : 1.0;
-		var altitude = raw.sky_altitude != null ? raw.sky_altitude : 0.0;
+		var sunElevation:FastFloat = raw.sky_sun_elevation != null ? raw.sky_sun_elevation : cast 0.0;
+		var sunRotation:FastFloat = raw.sky_sun_rotation != null ? raw.sky_sun_rotation : cast 0.0;
+		var sunSize:FastFloat = raw.sky_sun_size != null ? raw.sky_sun_size : cast 0.545;
+		var sunIntensity:FastFloat = raw.sky_sun_intensity != null ? raw.sky_sun_intensity : cast 1.0;
+		var altitude:FastFloat = raw.sky_altitude != null ? raw.sky_altitude : cast 0.0;
 		var sunDisc = raw.sky_sun_disc != null ? raw.sky_sun_disc : 1;
 
 		if (!multiScatterData.needsRecompute(densityVec, sunElevation, altitude, sunSize, sunDisc != 0)) return;