I used to use masks if I needed to apply textures. Later I found a better way. Click on the preserve transparency icon. Much easier and faster! Click here to receive more tips by email. Our BestsellersSimilar ArticlesHow to Animate a Liquify Effect in After EffectsTutorialsHow to Animate a Liquify Effect in After EffectsTutorialsHow to Animate Lava in After EffectsTutorialsHow to Animate Lava in After EffectsTutorialsHow to Animate a Hallway in After EffectsTutorialsHow to Animate a Hallway in After EffectsTutorials