Using Hair-使用毛发

Using Hair

Many improvements in the rendering of hair have occurred in the most recent versions of OctaneRender®. The Octane Hair Material, covered here, leverages the latest in hair materials research and will render a much more realistic result than was previously possible with Octane. That said, the grooming and styling aspects of hair is outside of Octane’s ability to address — that is still up to you, working with the native Cinema 4D tool set. To render hair, just add an Octane Object tag (discussed here) to the preferred Hair object. In the Hair tab of the tag, enable the “Render as Hair” toggle. The result will appear in the Live Viewer. Further adjustments to Root and Tip thickness can also be done in this tab.

In the image below, the Octane object tag is added after the Dragon’s hair setup is finished.

CINEMA 4D HAIR MATERIAL & OCTANE HAIR MATERIAL

The Octane Hair material works together with the Cinema 4D Hair material and requires some of the settings from the Cinema 4D material to drive the final rendered result of the hair. Use the Cinema Hair material for the physical characteristics of the hair — Thickness, Frizz, Clump, and so on — and the Octane Hair material for shading of the hair itself. The Octane Hair Material is discussed in more detail here.

SHADING & TEXTURING WITH THE HAIR MATERIAL

The Octane Hair material (discussed here) is assigned to the hair object, along with the required Cinema 4D Hair material. The Octane Object tag will tie the two together for rendering.

ASSIGN STANDARD COLOR

The simplest form of material assignment. Just create a material and assign it to a hair object.

ASSIGN OCTANE GRADIENT

You can use Octane’s Gradient node to apply different colors to hair. In the following example, an octane gradient is assigned to the Diffuse Channel. If you prefer the Cinema gradient, it will work as well. For more information on the Octane Gradient node, look here. Note that the Random Color node will NOT work for hair.

ASSIGN “W” COORDINATE

The W coordinate allows for color changes along the hair strand. For details see Textures “W Coordinate“.