 So, you just want to poke holes in your 3D model. Not a problem. Real quick, I learned how to do this from CGDev. So, shout outs to his channel. Check him out when you get the chance. Let's say we wanted to turn this guy's head into a music speaker. And we wanted to have a speaker mesh in the middle. Well, to do that, I would add a new fill layer. And for now, just so we can see what we're doing, turn everything off except for color and turn it red. Right click and add a black mask. Then right click the mask and add a paint layer. And we'll just plaster a quick selection to the middle of his face. Now from here, to activate transparency, go in the right under shader settings, change PBR Metal Rough to Metal Rough with Alpha Blending. Now something to keep in mind is to be cognizant of where you're going to be exporting to before changing the shader. If you're exporting to Blender, then pick a shader that you know works well for Blender. For this tutorial, though, we're going to use Metal Rough with Alpha Blending. And if we go to Texture Settings and click the plus next to Channels and pick Opacity. And now, if you go back to the main layer, you will see an Opacity option. Activate it. And from here, the opacity is controlled over here. And anything you paint with this layer will turn whatever you paint invisible. Now from this point, adding a pattern is easy. If we go into Resources, we can find a pattern we like, then drag that directly into Opacity. And you're done. At this point, we just add the tiling, rotation, and whatever else you need until it looks good to you. Now I demonstrated all of this on a mask, but you could just as easily have just created a new paint layer, set it to Opacity, give it an image, and started painting your transparency like this. And just like all other brushes, you can control hardness, you can give it an alpha. As long as it has the Opacity setting there, whatever you draw is going to be transparent. So, hope that helps, and as always, I hope you have a fantastic day, and I'll see you around.