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This page exists within the Old ArtZone Wiki section of this site. Read the information presented on the linked page to better understand the significance of this fact.

Diffuse (Color) Channel

Let’s turn to a bit of theory about what the Color/Diffuse channel does …

When someone asks “What color is that?” they are referring to the diffuse color. A surface’s diffuse color is the base color that shows when pure white light strikes the surface. For human skin, this can range from a light yellowish pink to a deep brown. Most plant leaves are shades of green. Pine boards are usually a light golden brown. A mushroom is a light brown color with spatterings of a deeper brown.

In DAZ Studio, you can assign a solid color to an object but to achieve more realism, you can also assign a diffuse texture map. This map is a 2D representation of the colors in your 3D object. For example, there could be two diffuse/color maps for a mushroom, one for a light brown mushroom and another for a darker brown mushroom.

Diffuse maps for mushroom

Moving on to how you assign diffuse properties, let’s take a look at the Basic and Advanced sub-tabs in the Surfaces Tab.

Basic Tab

The following settings appear in the Basic sub-tab for the Color|Diffuse channel:

  • Color|Diffuse: Shown by a color bar selector that displays three numbers indicating the RGB value of the currently selected diffuse color. Click on the Color Selector to open a standard Color Picker and select any color to set as the diffuse color
  • Image menu: The texture selector field is displayed under the color selector if a texture map or layered image file has been assigned. Click on the field to display a menu where you can select a texture from the list or browse for a new texture. If no texture is assigned, an arrow will be available to the right of the color selector. A menu prompts you to browse for a new image and displays images that are already present in your scene.

    surftab_diffusecolor.jpg

Advanced Tab

The following settings appear in the Advanced sub-tab for the Color|Diffuse channel:

  • Color|Diffuse: Select a color as noted under the Basic sub-tab.
  • Image menu: Select an image as noted under the Basic sub-tab.
  • Strength: This slider controls how strongly the Diffuse Color reacts to light and works in the same manner as a Parameter slider. A setting of 0% creates no response while 100% means that the color is fully responsive to light.
  • Diffuse Strength Image Menu: Click on the small arrow icon to the right of the Diffuse Strength slider to select a Diffuse Strength image map. If a texture is already assigned, click on the name of the image to select a new image or to remove the image. For best results, use a grayscale texture map for finer control over how your material reacts to light. Black areas in the image will be equivalent to a setting of 0%, and white areas will be equivalent to a setting of 100%. Shades of gray will be in between 0 and 100%, depending on how dark or light they are.

    Advanced Diffuse properties