This set of scenes started as a scenes using a conservatory in which
the girls could perform but with a random selection of what could be
seen through the windows,  including  some rather incongruous places
for a conservatory.

However, it rapidly grew into something a bit more complex by making
the external view change every few seconds and by using a variety of
transition effects. The result is a conservatory that jumps randomly
various points in time and space, like the Doctor's Tardis.

Each setting is composed of three elements the being the background,
the conservatory itself and the walls forming the entrance to it. In
each case the image or images used for the component are selected at
random from a directory of candidate images.

There are three main series of these scenes using different sets  of
backgrounds

   1 - Miscelaneous backgrounds

   2 - Deep space backgrounds

   3 - Alternating between 1 and 2

Within each of these main series there a number of individual scenes
that differ by the number of girls and, more importantly, the effect
used for the transitions between backgrounds. The transition effects
are

   1 - No transition. A single background is used
       for the duration of the scene.

   2 - Direct Fade. A simple fading in of each new
       background is used.

   3 - Indirect fade. Each transition between two
       backgrounds proceeds via a third backgound
       chosen to be very different to them  both.
       Rotations, stretching and  colour  cycling
       are used to enhance the effect. 

   4 - Shader based transitions. Like but various
       fragment shaders are instead of the simple
       animate clauses.

Three versions of the shader based transitions are provided in which
case they differ in the source of the image that they are acting  on
to pruce the transition effect. These are

   A - An alternate image.

   B - The current background image.

   C - The conservatory itself.

In the case of A the alternate image is one  taken  at  random  from 
whatever directory the scene file specifies for this source.  I have
used either a set of colourful abstract images or the set deep space
images.

When the background is taken from that of deep space images then its
scale is ramped from 1.0 to 2.0 while it is the visible  background.
This simulates motion through space.

I have only provided a small selection of backgrounds, which you can
extend by adding your own pictures to the appropriate  subdirectory.
You can also add further subdirectories to hold other categories  of
destination backgrounds but if so you need to modify renamed  copies
of the scene files to use them.
