Photoshop Postwork Tips and Tricks

deemarie · May 30, 2005 4:32 pm

Preparing The Image: Rendering and Exporting an Image From Poser When preparing to render in Poser, consider your final composition. After preparing a composition, render your characters, props, and background separately so that you have control over the different elements during post work. You can hide a figure or a prop by: [Figure > Hide Figure], or by right clicking on the object and un-checking the Visible Box. When exporting your images, select Photoshop PSD or Tiff format. Both formats produce an Alpha Channel, which separates the figure or prop rendered with the background. Alpha Channels will be used later in Photoshop to build the different layers of the final arrangement. The same technique will work in Jasc Paint Shop Pro or similar 2D software programs. Setting Up The Composition In Photoshop Open the image with your main character in Photoshop. Go to the Channels Palette and click on the black and white box: Alpha 1. Now click on the dotted circle in the bottom of the palette to load the Alpha Channel as a selection. Note how the white area of your image is now selected. Click on the RGB box on the top and your image returns to normal while the selection is still active. To create a new layer with your image, choose [Edit > Copy] and then [Edit > Paste]. Now your main figure is a layer of its own and ready to be post worked.
Layers allow you to work on a single part of the image without affecting the rest of your composition. You can add effects, styles, or change the order and features of the layers. You can follow the above procedure with other rendered images too and use [Edit > Paste] to copy the selected part into your main composition. This will automatically create a new layer. Filling the background area with a contrasting color will help you work on the details of the image. Dont worry about adding the background image just yet. Working the details Working with layers means that any changes you make will only happen within the specific layer. Erasing, blurring, desaturating, and most of the tools will only affect this area. Dodge and Burn Tool Sculpting the skins surface can be achieved by using the dodge and burn tools located in your toolbox. Select the layer you want to work with by clicking on the corresponding box in the Layers Palette. Select the Burn Tool from your toolbox, adjust the size, set it to Midtones, and slide the exposure button to 8%. Used like a paintbrush, the Burn Tool will darken parts of your image, producing shadows or lowlights. You can create different effects by changing the exposure values or by selecting between darkening the Shadows, Midtones, or Highlights. Use this tool to accentuate darker areas like those found between muscles.
In the same toolbox, you will find the Dodge Tool. The Dodge Tool will lighten areas and create highlights the same way the Burn Tool will darken. By using these tools you can create and define muscle structures on figures, add sheen to skin, or even create folds and creases on the skin. Use the Dodge Tool for emphasizing areas that naturally stand out and reflect more light. Also, use the Burn Tool to show where folds and creases areas that receive less light. Using Layer Styles and Attributes Working on a separate layer allows you to add many effects. Select [Layer>Layer Style>Drop shadow] to add shadows around your figure. You can alter the shadows direction and intensity in the dialogue box. This option creates shadow effects cast by your figure onto objects [walls, floor, or other figures]. Selecting [Layer>Layer Style>Inner Shadow] will create shadows with a specific lighting direction within the outline of your figure. This is a great way to blend your figures with the background so the end result will appear realistic. Interesting effects can be created by [Layer>Duplicate], and applying options such as dissolve or blend. For example, Multiply will darken an image and give it a rusty feel, while Screen will lighten it and make it softer. Try experimenting with these options. This comes very handy when blending in two or more different backgrounds, or when you want only the dark parts of a layer to appear. The Smudge Tool And Placing It All Together The smudge tool comes very handy when you want to create hair strands or cloth folds. The smudge tool will pick up a color and drag it across the direction you define or it can reproduce the effect of a wet paintbrush with a color you choose.
Through this example youll have the opportunity to see what the smudge tool can do and how some of the above tools can be placed into practice. Open a file with a figure youve created. Isolate the figure in a layer as explained above. Now make a new layer. Choose a base color to create an outline of your new cloth item. After creating the outline, fill this area with a solid color. Its best to use a hard brush so youll get nice, defined results. Next create a new area and set up your smudge tool to get some nice wet brush effects that will simulate the darkest parts of the creases. Select the Smudge Tool from the toolbox and check the Use All Layers and Finger Painting boxes on top. On the Brushes rollout, set the Strength to 100% and Fade (located in Shape Dynamics for PSP 7) from 100 400. Note that these values depend on the resolution and size of your image so they may vary. Now, click on the Layer youve created with the solid color, choose [Selection > Load Selection] and click on Transparency. This will make a selection around your base clothing, making it impossible to paint outside its borders. Click on the Eyedropper Tool in your toolbox and select a color thats slightly darker then the one you chose to fill in the cloths base. Click on the new, empty layer and start making light strokes that resemble the dark parts of creases. It will look very crude at this point but we will refine it later on. Remember that you can vary the brush size or fade values for different effects. Create a new layer and select a lighter color. Use the smudge tool to create highlights on top of the shadows youve just created. Its best to make these lines near the darker ones. Merge the two shadows and highlight layers by selecting them and pressing [Ctrl/E]. Go to the Smudge Tool, uncheck Finger Painting and Use all Layers box on top, lower the exposure and slightly increase the size. Start blurring and merging the two colors until you see soft creases form. You can play around with the strength and size for crisper or softer effects. Adjust the brightness of your base layer to fuse the colors better. When youre happy with the results, merge all the cloth layers. Use the Burn Tool to darken areas of the cloth and to create contrasting shadows. Select the Dodge Tool to highlight areas. Think of where light should reflect off more and where shadows would naturally be created. When youve achieved the desired results, play with the Layer styles or attributes to add shadows and more depth. By keeping the cloth in an independent layer, you can change its color anytime.
Create hair strands with the Smudge Tool. Select the Use All Layers box at the top, create a new layer, adjust the brush size from1 pixel to 4, and adjust the Fade option from 80 to 400 (depending on your images resolution). Start making strokes from where the hair is located at the base outwards and regulate the brush size and fade to get different strands lengths and sizes. Finally, add your background and tweak the colors, saturation and shadows so it will blend with the rest of your scene. Adjust the contrast and fine-tune your image so everything works together. Experiment with the Layer attributes, with filters and lighting effects. Try your hand at using the same tools explained above, save often, and let your imagination go wild!
We invite you to visit: danae's Renderosity Art Gallery danae's Renderosity MarketPlace store. May 30, 2005

Article Comments

myaleigh ( posted at 12:00AM Mon, 30 May 2005

Thank you Danae! I always export my Poser images as TIFFs but I rarely use the Alpha channels. I'll have to try this on my next render.

ariannah ( posted at 12:00AM Mon, 30 May 2005

Wonderful tutorial explaining your technique! I will definitely be able to learn from your tips - thank you so much!

emorin ( posted at 12:00AM Mon, 30 May 2005

This is one great Tut! Really appreciated.

bfleishe ( posted at 12:00AM Tue, 31 May 2005

Thanks ! I've not been paying enough attention, and have been exporting as hires jpeg and then opening with PS. Thanks for the wake up. Nice tutorial and very useful.

Carcinogen ( posted at 12:00AM Tue, 31 May 2005

Excellent tutorial, Danae! Tim

cindyx ( posted at 12:00AM Tue, 31 May 2005

Thank you so much for these tips and tricks. I learned some very helpful things I didn't know.

Mechanismo ( posted at 12:00AM Wed, 01 June 2005

thank you very much for the tips these will come in very useful :D !!!!

jwiest ( posted at 12:00AM Wed, 01 June 2005

Don't usually have time for Postwork...heck, don't even have the time I'd like for Poser often. But excellent tutorial. I'll keep this in mind. Thanks so much. :)

TCopsey ( posted at 12:00AM Wed, 01 June 2005

I appreciate your time writing the tutorial and sharing your vast experience. Goes to show there are good people willing to assist others without a hefty price tag as their motivator. Im anxious to practice these methods creating eye dropping creations such as yours.

YARDOBE ( posted at 12:00AM Wed, 01 June 2005

Lots of good info,what I like in a tute,thank you!

ehsan192 ( posted at 12:00AM Thu, 02 June 2005

congraculation .this work is very nice .I love it

iamjuice420 ( posted at 12:00AM Thu, 02 June 2005

seems like a helpful tut. i will try the things you mentioned one of these days when i can be an artist, not a chef.....thanks for putting into words.....

notagentx ( posted at 12:00AM Fri, 03 June 2005

amazing... though I would need a little more time w/ps tools... thxs, hope I can get back to this.

frodo ( posted at 12:00AM Sat, 04 June 2005

And you make it sound so easy! Now if only I had your talent and imagination. . . .

deemarie ( posted at 12:00AM Sun, 05 June 2005

danae, Your talent always amazes me! Excellent tutorial, I know it has inspired me to start working in Poser again :) Dee-Marie

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