In Output levels drag the black slider to anywhere between 50 and 75, this will limit the darkest areas to a mid tone gray.ġ8. Make a LEVELS adjustment layer and move the Gamma (gray point) slider to the left favoring more lighter tones.

Go to the FILTER menu > BLUR > GAUSSIAN BLUR and set the radius to 2.0 pixels.ġ5. Go to the FILTER menu > NOISE > ADD NOISE, set the amount to 15%, distribution to Gaussian using Monochromatic noise.ġ4. For Layer 1 change the blending mode to Multiplyġ3. Go to the EDIT menu > TRANSFORM > ROTATE 90 DEGREES CLOCKWISEġ1. Make a new layer and go to the EDIT menu > FILL and for contents use white.ġ0. Go to the IMAGE menu > ADJUSTMENTS > LEVELS and boost the contrast by moving the black and white points toward the center at the base of their respective mountain peaks.Ĩ. Go to the FILTER menu > BLUR > GAUSSIAN BLUR and set the radius to 2.0 pixels.ħ. Go to the FILTER menu > BLUR > MOTION BLUR, set the angle to 0 degrees and distance to 40 pixels.Ħ. Go to the FILTER menu > NOISE > ADD NOISE, set the amount to 20%, distribution to Gaussian using Monochromatic (black and white) noise.ĥ. After applying the filter if you go back to the FILTER menu DIFFERENCE CLOUDS will be listed at the top.ģ. Difference clouds uses the blending mode of difference as it applies the cloud filter producing otherwordly results. Apply this at least 10 times and make sure the results aren’t too dark (if they are try applying the filter again or just start over).

Go to the FILTER menu > RENDER > DIFFERENCE CLOUDS. Change your colos to the default colors (black foreground, white background) by typing D on your keyboard.ģ. Make a new document 300 pixels x 300 pixels x 72 p.p.iĢ. (please note, your results will look completely different from mine because of the randomization – Gaussian – functions in the filters I am using.)ġ. Don’t let that scare you, it only means there are a lot of different ways to modify this tutorial and make your own surprising variations. There are a lot of steps in this tutorial to produce the right amount of random texture and noise without making it too dark or too light and without too much obvious patterning.

I was surprised that it was difficult to find a tutorial for making a grunge brush from scratch, so I decided to make one.

Grunge eraser photoshop