Broken Mirror Effect with a Bump MapWill OwenAPCG330 9 April 2007TutorialWhat we’re trying to accomplish•A broken mirror has a skewered reflection of objects•You can see the cracksRon Blumberg "My Broken Mirror“ www.triggison.c om/jewelry/jewelry.html DAILY Photo Illustration by John Godbey http://www.decaturdaily.com/decaturdaily/news/051021/luck.shtmlYou could just model every individual piece and then angle each one facing a slightly different way, but this could be time consuming and I will show you a technique for a similar effect using a Bump MapSTEP 1You could use a tutorial already done by other students.Glass Texture - Mirrors & GlasswareBY: Todd ClarkOr Lindsay Stallman’s tutorial on “Making a Mirror”Make your mirror.(Simply a piece of glass with Reflection on 100%)STEP 2Get a photo of a broken mirror or create one yourself. I have two here; using the one on the left. All you really need is the lines for where the mirror is broken.http://www.brianmicklethwait.com/culture/archives/photography/STEP 3Open your photo of the broken mirror in a image editing program that has a Gradient Tool like Photoshop or Mirage. Here I will use Adobe Photoshop CS2.STEP 4 aConvert the image into Black and White.On the layers panel go to the bottom and click the button to “create new fill or adjustment layer”. The button looks a bit like a Yin Yang, or a half-eaten pie. A window will pop up with these options shown here. Click on Channel Mixer.Using the Channel Mixer to convert the image to B&W (Black and White) is one of many ways to ‘skin a cat’, and is used here because it is the least damaging to your image and can easily be undone.STEP 4 bIn the Channel Mixer window check the Monochrome box and hit OK.STEP 5Get the broken lines which will be your guide for the gradient pieces.Using the Channel Mixer again, this time select Levels.This is the Levels window to the right. We will mess with the little black, grey, and white arrows.Move the grey arrow left.move the others inwards.ThenStep 5 ResultThis is the image you end up with. What we did was make the dark areas more black and the light areas more white.STEP 6Get rid of reflected image.Make sure you are on the layer with the photo on it.Use the eraser tool and erase the areas in the photo that are a reflection and keep the lines that are part of the broken mirror.If you are familiar with the magic wand tool that saves time, but this is a tutorial in 3D modeling not Photoshop.After erasing, you can use the Bruch tool (B) or the Line Tool (U) to fix it up a bit.You want to end up with a picture like thisSTEP 7 aSelect a shardEdit in Quick Mask Mode (Q) and select a portion of a broken mirror shard.Use the Brush Tool (B) to paint a shard inEdit in Standard Mode (Q) and the “marching ants” will have everything but your shard selected.STEP 7 bInvert the selection.Select - InverseThis is the area selected nowSTEP 8GradientSelect the Gradient Tool (G)Click on an area and drag into the shardThis is a Gradient. The black is slowly dissolving into the white.STEP 9Repeat the Gradient on every shardThe idea here is to make sure one black area is not touching the black area of another shard, otherwise the image will not be distorted in the reflection.Save your image.Bring your Mirror model into LayoutThis is my mirror without being brokenSTEP 10Use the image you just made as a Bump Map.In Layout go to the Surface Editor. Click on the T to the right of the Bump Category. Under Image load the picture you made. Automatic Sizing will apply the image to fill the model.STEP 10Render!!!Rendering>Render OptionsMake sure you have Ray Trace Reflection checked or else it won’t be a
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