Re-use existing unlink command and move all the unlinking code to
NodeRemoveCommand to cover all bases (deletion of a block in the
timeline or in the node editor).
When a Block node was deleted its linked blocks were not unlinked
which caused a crash when the user tried to select a linked block.
This fixes the issue by ensuring all links are removed when a Block
node is delete.
Undo/redo is also supported.
This is the first step in what will eventually be keyframable time
remapping. The speed/duration dialog was a holdover from 0.1 and we can
probably do better here.
Implements a very basic GLSL deinterlace that simply halves the vertical
resolution and then interpolates between the fields. This can be toggled
on or off.
The reasons for being so basic is:
- Speed, very quick code running in OpenGL
- It would seem the highest quality deinterlacers are temporally based
which doesn't make much sense for the viewer, particularly since we can't
double the frame rate since our timecode is fixed to the frames.
Higher quality interlacing/deinterlacing will be present in the actual
renderer.
Implements the following:
- Sequences have pixel aspect ratios that work in tandem with footage PARs
to render footage correctly. Viewer and export also acknowledge PARs
- Sequences can have interlacing settings. This doesn't do anything yet,
eventually the renderer will need to interlace/deinterlace/reinterlace
appropriately in order to conform all the footage to the sequence. Export
acknowledges interlacing, but this only affects metadata, not the image.
Shifted from CacheTask to functionality built into RenderBackend. It was
a lot easier to control behavior this way without having to juggle a ton
of threads and race conditions.
Could likely be multithreaded further.
We had support for detecting aspect ratios and respecting them in the
render, but this allows people to not only see the aspect ratio in use,
but also override it with their own.
Allows dynamic switching between pointer/roll/slide since occasionally this
behavior is interchangeable. Fixes a lot of transition behavior (but not
all of it).
I had thought that the cursor may still have moved between the last
mouseMoveEvent and the mouseReleaseEvent, but that turns out to be false
making it completely unnecessary to call move functions in the release
function.
Improves stability and cache reliability.
Earlier iterations were prone to skipping necessary signals (usually
leading to some sort of assert fail), particularly when track
optimizations were used. Those optimizations have been moved to the
viewer node so there's a higher degree of control over which signals
get optimized and in which ways.
Thomas Wilshaw