Symptom:
I have displayed my model in the Scene window but I can't seem to get the transparency to work. The sliders aren't working.
Resolution:
Block model transparency only works when you have it at full acceleration.
To set this up click on Partial Acceleration in the bottom right-hand corner and choose full acceleration.
Root Cause:
The Acceleration Mode was setting to Software Rendering or Partial Acceleration.
Notes:
Leapfrog Geo can run in one of three acceleration modes. Click the Acceleration mode button in the Settings > Scene window to use a different mode. The modes available are
Software Rendering uses software only, for maximum compatibility with any hardware. This option can be very slow displaying all but the simplest scenes, and is provided as a fall-back if display issues cannot be resolved with either of the other two options.
Partial Acceleration uses hardware acceleration that has been provided on graphics cards for many generations. In this mode, Leapfrog Geo renders scenes using “fixed function pipeline” hardware acceleration features that have been superseded in modern graphics cards by programmable shaders, but this legacy capability is widely supported and offers performance advantages over software rendering. Using Partial Acceleration can sometimes fix anomalies or problems encountered in Full Acceleration mode that may be due to bugs in old drivers, and it should work with even old or lower-featured hardware.
Full Acceleration is the best option, assuming you have good hardware and up-to-date drivers. Because it makes use of programmable shaders provided by modern graphics cards, it is the fastest of the three modes and uses your available graphics memory more efficiently. It is the mode you should use, if your system supports it.