Transparent Brush?

[envywithlove]

Hello everyone,

I know that there is a feature in Photoshop cs6 which will change your brush into a tool that affects the opacity of the layer it is used on.

That is to say, if layer 1 was all blue and layer 2 was all green, using this brush tool on just one small spot on layer two would make that spot transparent, revealing the blue layer 1 underneath.

I would like to know - what is this tool called, and how may I access it?

Please do not confuse this with brush opacity, which is affecting the opacity of the image drawn by the brush. I am looking for a tool which affects the transparency of the layer it is draw onto. I am sure this feature exists, as my university tutor has used it, but I had forgotton how to access it.

Thank you in advance

[Guest]

Are you thinking of the eraser tool?

[Semaphoric · Accepted solution]

In the option bar, set the brush Mode to "Clear". You can also use the Brush option for the Eraser tool.

[architecturestudent]

I have an issue with my photoshop, my brush mixes colours of the thing i want to colour over and the colour i use and my erraser works half, it makes everything half transparant... Any advise?