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Materials

To edit OctaneRender^® materials, click the Edit Octane Scene button (figure 1) in the OctaneRender node’s Properties window. This will open the OctaneRender window, where new materials can be created and existing materials can be edited (figure 2).

Figure 1: Accessing OctaneRender materials via the Nuke Properties window.

Figure 2: Accessing material properties in the OctaneRender window.

Changes made in the NodeGraph will be immediately reflected in the render currently being performed by the plugin. Once the NodeGraph window is closed, the changes are automatically saved when the Nuke scene is saved.

There are several types of materials in OctaneRender^® that can apply to surfaces to achieve a variety of appearances and rendering effects.

• Composite - Mixes several materials using masks.
• DiffuseAmount of diffusion, or the reflection of light photons at different angles from an uneven or granular surface. Used for dull, non-reflecting materials or mesh emitters. - Used for rough, non-reflecting materials, as well as light emitting meshes.
• GlossyThe measure of how well light is reflected from a surface in the specular direction, the amount and way in which the light is spread around the specular direction, and the change in specular reflection as the specular angle changes. Used for shiny materials such as plastics or metals. - Used for shiny materials such as plastics or metals.
• Hair - Designed for hair and fur objects.
• Layered - Constructs complex materials that consist of a base layer and several material layers.
• Metallic - Similar to the Glossy materialUsed for shiny materials such as plastics or metals., except by default it exhibits more metal-like characteristics.
• Mix - Mixes any two MaterialThe representation of the surface or volume properties of an object. types.
• PortalA technique that assists the render kernel with exterior light sources that illuminate interiors. In interior renderings with windows, it is difficult for the path tracer to find light from the outside environment and optimally render the scene. Portals are planes that are added to the scene with the Portal material applied to them. - Designates openings in scenes to allow the render kernel to better sample light from those areas.
• Shadow CatcherThe Shadow Catcher can be used to create shadows cast by objects onto the surrounding background imagery. The shadows cast are not limited to simply a ground plane but can be cast onto other surfaces of varying shapes. - Captures shadows.
• SpecularAmount of specular reflection, or the mirror-like reflection of light photons at the same angle. Used for transparent materials such as glass and water. - Used for transparent materials such as glass and water.
• Toon - Designs hand-drawn looking surfaces.
• Toon Ramp - Controls shading on the model. To use this material, you also need to use Toon lighting in the scene.
• Universal - Brings substance maps and PBRA contemporary shading and rendering process that seeks to simplify shading characteristics while providing a more accurate representation of lighting in the real world. outputs into OctaneRender^®.

These materials can be accessed by right-clicking in the OctaneRender Nodegraph Editor and navigating to the MaterialsA set of attributes or parameters that describe surface characteristics. category (Figure 3).

Figure 3: Accessing Octane-specific materials in the OctaneRender’s Nodegraph Editor.

For more information regarding how to work with materials in the OctaneRender window, please refer to the OctaneRender Standalone documentation.

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