When creating textures for use in a 3 chiều application or game, sometimes it’s necessary to add finer detail, such as a bump map or normal map. Normal maps kém chất lượng the lighting on textures to lớn create additional detail, without adding more polygons.Bạn đang xem: bí quyết làm normal bản đồ trong photoshop

For normals, I figured you had khổng lồ always rely on a 3rd buổi tiệc nhỏ application such as CrazyBump. While CrazyBump is a great piece of software, I hadn’t realized it was already possible using the popular photo-editing software, Photoshop.

Bạn đang xem: Cách làm normal map trong photoshop

Please Note: The 3d functionality is not available in Photoshop versions CS6 & prior, & therefore will be unable lớn create normal maps.

Open Texture in Photoshop

For this example, I’ll use a leather texture found on textures.com:


Open Photoshop and switch lớn the 3 chiều Workspace:


Open the texture you want lớn create a bump bản đồ for. In the 3 chiều panel, select Mesh From Preset, and choose a shape:


In the 3 chiều panel, you’ll see an object name with _Material. Click that:


Create the Normal Map

The Properties panel changes to lớn reflect options corresponding khổng lồ the material properties. Right now our texture is loaded into the Base màu sắc channel. There’s a button at the bottom labeled Normal. Click that and select Generate Normals From Base Color…


After a few seconds, the Generate Normal bản đồ window opens:

There’s a preview of your shape, and you can adjust Contrast Details & all that fun stuff. Click OK. Your normal map is created và applied to lớn the shape.

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Note: If Photoshop locks up, you can also try this simpler method:

Open texture in Photoshop as you would normally any image. Make sure the image mode is set khổng lồ RGB. (Having tried with Greyscale, it would freeze up again.)Choose Filter3DGenerate Normal Map…Adjust your maps as necessary (I left my to lớn default). Click OK.

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Save your tệp tin as PNG (not sure if it really matters). You’re done!

To save the maps out of Photoshop, click on the Normal button again in the Properties panel, và this time select Edit Texture…

Your bản đồ will xuất hiện in a separate document window. Choose File, Save As… Choose Tiff as the Format, & uncheck Layers:

On the TIFF Options dialog, just keep everything as default:

Now you can use this normal maps inside of a 3 chiều application or trò chơi engine lớn get more detail out of textures.

As you can see in the example below, a normal maps can showroom much more realistic lighting detail on the surface of your mesh.

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