HOW TO USE A BRUSH SET TO LINEAR DODGE (ADD)
I ran across this little brush technique in Advanced Photoshop Magazine No. 81’s DVD (several years old) in a PDF called Photoshop Uncovered: Forgotten Features. This particular tip was by designer/illustrator Radim Malinic of Brand Nu. I am not sure I have completely mastered his technique yet, but it was fun trying to figure out how he uses it to create some really great art.
Exactly what does setting a brush to a Linear Dodge (Add) mode in the Options Bar do? According to Radim, “As the color dodges, the overall shade goes lighter with every brush stroke.” Usually he tries to stick to just one color for his image, so this was my goal in my blog images. His basic technique involves creating a colored image, then desaturating the image, adjusting contrast with a Levels Adjustment, and adding in background textures and shapes.
On a New Layer with any brush selected, the Options Bar was set to Linear Dodge (Add) mode, Opacity 30% and Flow no more than 30%. Choose a darker shade of any color wanted to dominate your image. As you dab, colors will become brighter each time a stroke is overlapped – be careful not to overdo this effect as it is easy to get carried away. A New Layer is needed to get the effect as a white background layer will not show any strokes. If the last dab is too strong, go to Edit -> Fade Brush Tool to reduce the effect and change the blend mode for a better look if needed. The bright linear dodge strokes can be seen in the plants and giraffe in the bottom image below.
The Tych Panel shows how I created this image. I was attempting to try and just use a nice color of green to do all the painting in this image. The upper left image is what was initially created using several layers and various colors! This involved adding the background textures and creating a group of layers that contained my plant brushes. A stamped layer (CTRL+ALT+SHIFT+E) was created on top. Next a Black and White Adjustment Layer was used to get a nice tone – this was merged down (highlight both layers and press CTRL+E) so now my main image is black and white. It was set to 94% layer opacity – that is why there is some slight color showing in the image. Therefore, a white filled New Layer was placed underneath so the colors below did not show through.
Now the fun began. Just started painting using the Linear Dodge (Add) mode in the Options Bar at 30% Opacity and 30% Flow. A light green was painted over the image. A giraffe silhouette brush was added and a layer mask was used to put some of the plants in front of his legs. On a New Layer painted in with the green colors on the giraffe – see the variation of the colors as the brush is dabbed over the same areas. A Levels Adjustment Layer was clipped (ALT+click between layers) to some layers to soften the effect so it blends in better with the plants. 12 more layers were created to paint in the different object using different brushes. I found that by varying the brush Opacity but not the Flow over 30%, the various shades of the color could be easily obtained. Also the layer opacity or Edit Fade command can be used if the effect is just too strong. To finish up, Nik Viveza 2 was applied to adjust the focal point and add a slight vignette effect for drawing the eye. I decided the green was overwhelming the image as seen in the bottom part of the Tych Panel. Therefore a bright dark blue Solid Color Adjustment Layer was added. It was set to Color blend mode at 35% layer opacity. This seemed to balance out the over green to a level I liked as shown in the top image.
The above is another example of using this same technique. It was first painted in color and then turned to black and white before creating a New Layer and using Linear Dodge (Add) brush mode to paint with a cyan blue color in the image again. This technique does take a bit of practice to get a good result, but I do see a possible use for this type of brush in doing a regular painting. It is nice to just emphasize a certain area in an object using this method – in fact several digital painters use this method for dodging their images. It has been fun to try and paint with a monochromatic color scheme. Definitely have to think about what the values are in your image. Hope you get a chance to experiment with this brush mode and come up with some interesting results!…..Digital Lady Syd