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Transtiton from Opaque to Transparent(Object's Alpha Color & X-Ray Mode) Bug.
Open, Needs Triage by DeveloperPublic


System Information
Windows 10 64 Bits.
Graphics card GeForce GTX 1080 Ti.

Blender Version
Broken: version: and 2.81 Alpha hash: 28ee0f97c33b

Short description of error
Blender's transition from opaque to transparent in both Object's Alpha Color and X-Ray is not smooth,there is a small hiccup at the start of the transition.

For comparison this is how it should be, a smooth transition from the beginning to the end.

Exact steps for others to reproduce the error

  • Have a UV Sphere or any.
  • Enable X-Ray mode in the Shading Popover.
  • Drag the Slider from 1 to 0 while holding shift for more precise control.
  • Observe how going from 1 to 0.999 is not smooth at all.
  • Same for the the Object's Alpha Color in the Material tab under Viewport Display.



Event Timeline

CobraA (CobraA) updated the task description. (Show Details)
CobraA (CobraA) edited projects, added BF Blender (2.81); removed BF Blender.

There might be technical difficulties with this, because transparent objects are handled quite different from opaque objects (I guess?).

@Clément Foucault (fclem), please take a look at this.