Discrete rendering of a volume.
Interpolated rendering of the same volume.
The Volume Render Settings control how a volume is displayed in the 3D Workspace.
Interpolation Mode
Choose how values transition between volume cells:
- Discrete: Displays each voxel as a distinct prismatic cell using the raw values, with sharp boundaries and no smoothing. This is best suited to discrete data.
- Interpolated: Uses trilinear interpolation between neighboring cells to create a smoother, continuous representation. This is best suited to continuous data.
Render Mode
Determines how the volume is visualized:
- Direct Volume Rendering: Renders the volume as a translucent object using raymarching, making internal structures visible. It works best with a highly transparent colormap. Adjust Alpha Multiplication in the Volume Colormap to refine transparency and depth perception.
- Isosurface: Renders the outer shell of the volume with the active colorbar and transparency applied.
- Maximum Intensity: Displays the highest-intensity values visible from the current viewpoint using opaque colors from the active colorbar, helping emphasize the strongest structures in the volume.
Sampling Rate Multiplier
The Sampling Rate Multiplier adjusts sampling density for Direct Volume Rendering and Maximum Intensity across a range from 0.2 to 2. Higher values provide finer detail and smoother gradients but may reduce performance. Use Reset to return the value to 1. The control remains visible in Isosurface mode but does not affect it.
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