I am currently creating an animated logo in Adobe After Effects CC and I have come into an stumbling block. I have wanted to create a poked out logo where you can see the video to come filling the words. For an example see > ARCTIC - Visual Vibes - YouTube
I have created the same effect for my written logo by using an Alpha Inverted Matte on a solid with the text layer above the solid. The issue I am having is with the vector icon I have as my picture logo. It is a PNG and for some reason is not being picked up by the Alpha Inverted Matte. I want to create that same effect with the vector icon where you can see the video filling the shape which will eventually transition into the written logo I have already sorted.
Has anyone any knowledge to share on this? It would be greatly appreciated.
I deduce that your PNG file has no transparency. Additionally, a PNG file is NOT a vector file -- it's a bitmap.
But it sounds like you have a vector file somewhere! If it's RGB and not CMYK, AE can probably use it. If there's transparency in it, you're good to go.
You might be misunderstanding how mattes work. I'm no expert but I'll try to explain the way I understand it:
Matte's do not "use" transparency, they create it. They use binary colors (usually black and white) to create a sort of multiplier map where one color multiplies by 1 (full opacity) and the other multiplies by 0 (full transparency).
So you cannot simply use an image with transparency as a matt. You need to convert it to to black and white. There are several ways to achieve that.