OctaneRender® for Blender

The Spherical Projection is used for Environment textures and IES light distributions. It performs latitude-longitude mapping for the U and V coordinates. When used with Procedural textures, the W coordinate is the distance from the origin (figure 2).

Figure 1: Spherical Projection Node

Figure 2: Several simple shapes using Spherical projections to map a texture to their surface

When using an Image texture to light a scene with the OctaneRender® Environment node, spherical mapping combined with a Transforms node lets you rotate and translate the environment sphere's texture. To rotate a texture image (e.g., an HDR image) around a vertical axis, switch the texture environment image's projection to Spherical and rotate it via the Y axis through the Sphere Transformation sliders.

Spherical Projection Parameters

Compatibility version - The Octane version that the behavior of this node should match.

Sphere Transformation - Transformations applied to the spherical projection.

Coordinate space - Coordinate space used by the texture.

Use Rest Attributes - Keeps texture maps from distorting when the geometry is animated.