Getting Alpha out from Tile Sampler Color node

Question

Hey people! =DThe pattern input I'm using in 'Tile sampler color' holds RGBA data. The output from the node however doesn't come with alpha (white alpha). Is it normal or is there a way to get the Alpha? If user puts a color in BG input then it works fine within the Tile Sampler Color stating that the node does holds Alpha data. How do I get it out? In the end, I want to send the output in Base Color channel without the black background.I can take the color output from Tile Sampler and convert it into grayscale → Apply levels etc to get a mask for Alpha merge node but.. it's not the most accurate way. I've read that splatter shape is more apt for such scenerios. Unfortunately I've set up a huge part of my tool around tile sampler node :') Thanks!

Cyril Dellenbach · Accepted Answer

In addition to the solution Dave mentioned, you can directly set up the Background alpha to 0 in the Tile Sampler parameters.

The result will be strictly the same, but it's still one less node.

Best regards,

davescm · Answer

Make sure the Tile sampler has an input with Alpha 0 connected to its Background input socket. You can then use an Alpha split node to extract the alpha Dave

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