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Creating Terrain for 3DGS: by Jeff Frazer page: 1 2 3 4 5 |
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Finishing our Height Map: Almost done! Go ahead and flatten your image (layer -> flatten image) so that we can touch it up a little. We'll fill in some of the gaps between the mounds with the airbrush just like before. We're also going to fix the elevation on the tops by changing the settings on the airbrush and our foreground color. Change the brush size to 21 and set the foreground color to a really light gray. Now just pick away at the tops of your mounds until you get the desired shape and elevation. Finally, adjust the contrast by -20 (image -> adjust -> brightness/contrast) to decrease the overall elevation. |
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Creating a Skin: I am using two freely available textures to make my skin. You can download them here if you want. Otherwise, use whatever your heart desires =). First, select the magic wand tool from the toolbar and set the options as follows:
- tolerance: 35
- anti-aliased: on
- use all layers: off
- contiguous: on
Click anywhere in the black part of the image and then select inverse (CTRL-SHIFT-I). Then we'll feather the selection by 4 (CTRL -> ALT -> D) to blend the two textures together. |
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Create a new layer (CTRL-SHIFT-N). Go to the texture that you are going to use for the mound part of your terrain, in my case redground.jpg, and select the image (CRTL-A). Define it as a pattern (edit -> define pattern) and select the paint bucket tool. In the paint bucket options, set the contents window to pattern. Click inside of the selection and, voila, a texture fill! Next, create another new layer. Go to your other texture, select all, define pattern and do another texture fill on your new layer. |
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Almost done with Photoshop©! Next, we merge our two texture layers together (not the height map layer!) making sure that the mound texture is above the lowland texture. With the skin layer selected (combined texture layer), select all (CTRL-A), open a new file (it will automatically be the correct size) and paste it into the new file. Hide the skin layer in the original file and flatten both of the files. Save them both as BMPs and finally, close Photoshop©! Finishing up in MED |
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