June 29th, 2003
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#10 |
| I don't spend enough time here
Join Date: June 9th, 2003 Rep Power: 0 | Okay, I'll have a go at it.
Alpha channels. If you have Adobe Photoshop, you will see three options in the menu normally used to cycle between layers: Layers, Channels, and Paths.
If you select channels, you will see four on most images (RGB, Red, Blue, Green) if you add another layer, that layer becomes the "alpha channel." In that channel, use a greyscale to determine opacity. White is completely opaque, black is completely transparant (ie. Will not be displayed.) To see an example of this, open AVComanche_p.tga in Photoshop.
To apply the effects of an alpha texture, when you apply a material to a specific componant of the model (Look for the checkerboard-looking icon in the top bar of RenX) select "Pass 1" and then "Shader" from the menu that appears when you switch to "Pass 1." Select the "Alpha Blend" blendmode, and then add the texture by switching from "Shader" to "Textures" and checking "Stage 0 Texture," clicking on the button labeled "None" and choose the texture with the alpha. When you export your model (From the W3D export settings of the utilities side menu [the one that's marked with a hammer]), be sure to check both "normal" (automatically checked) and "shadow." |
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