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>Using the Noise Part I - Alpha & Bump

      You now know how to get into the DTE and create basic noises. You are probably wondering how you use them. Looking at Component 1, there are 3 buttons labeled C, A, B. These stand for color, alpha, and bump. Whenever you click any of these buttons it either turns them on or off. In the default texture only the Alpha Button is pressed for clarity sake when creating the noises. In this section you will be learning about just the Alpha and Bump Buttons. When you turn on one of these buttons it adds the noise's values to that property.

      Create a cube with the default material. Add a texture to the material and enter the DTE. If you have forgotten how to do this then please re-read the section on entering the DTE. Once in the DTE, add a Fractal noise. If you have forgotten how to do this then read the previous section. Now if you notice just the Alpha Button for Component 1 is turned on. This means that if you were to apply this texture to the material then it would only have information for the Alpha Channel. Click Here for a table on which attributes in the Material Lab use what channel. If you want to add the texture to the bump attribute, you must have the bump information turned on inside the texture.

      So right now press the Bump Button on Component 1 to activate the bump for that component. Click the checkmark in the DTE and to return to the Material Lab. The texture has both information for alpha and bump but none for color. Consult the table below to see which attributes will be affected by the material. Ok, now add the texture to the bump attribute and render it to see the effect. Play with each of the channels and see how they work. There are a few examples below.

Example:
This is a material with the fractal texture set to the reflection and bump.
Example:
This is a material with the fractal texture set to diffusion and ambience.

What Uses What?
Diffuse Color
Ambient Color
Specular Color
Specular Halo Color
Transparent Color
Volume Color
Diffusion Alpha
Ambience Alpha
Specularity Alpha
Metallicity Alpha
Bump Height Bump
Transparency Alpha
Reflection Alpha

 
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