You can directly download the Unity package by clicking here or by going in the Release section

When importing the Texture3D asset, Unity will automatically render a preview of the Texture3D to display in the Project window.

When selecting a Texture3D asset in the Project windows, Unity will display an preview of the Texture3D in the Inspector.

To enable Texture3D field preview on a GameObject's component, add

[Texture3DPreview]

in front of the declared field.

• Shader model 3 capable graphic card
• Unity 2017.1+

• Preview non uniform Texture3D in their respective ratio (currently all previews will be cube)
• Add alpha blend mode for rendering previews

• Previews are currently in additive mode
• Previews of multiples Texture3D assets don't work
• Sometimes, the preview of a Texture3D field becomes empty

Feel free to contact me for any comment or suggestion. Twitter : @raphernaelsten

The sample Texture3D asset provided with this package was made using MRI scans found on this website.

Here's the process :

• selected the right-to-left gif
• rescaled it to 128x128 and extracted all the frames using VirtualDub
• used Unity's VFX Toolbox Image Sequencer to resample the frames count and lay them on an images sheet
• used a custom tool to build a Texture3D (basically create a Texture3D with the correct size then copy the images from the sheet as slices) from this sheet and save it as an asset