The render pipeline has been extended to better work with
Freestyle stroke rendering. Struct Render has a new member
ListBase freestyle_renders to keep Render instances generated
through stroke rendering in Freestyle. The number of
elements (LinkData instances with LinkData::data pointing to a
Render instance) in freestyle_renders is the same as the scene
render layers of the scene being rendered. When the k-th scene
render layer has the Freestyle option enabled, the k-th element
of freestyle_renders refers to a Render instance that holds
Freestyle render results for the scene layer. This association
between the scene render layer and the Render instance is used to
merge the Freestyle render results into the corresponding render
results for the scene render layer.
if compositing, sequencer, fields, etc should be rendered, or if the
render does that itself. The weak point is that this only applies to
rendering, so if you open the compositor, it will still run on the
rendered result. Enabled by default, set to False to disable.
* Viewer node could free image while it is being redrawn, viewer image
buffers now need acquire/release to be accessed as was already the
case for render results.
* The Composite node could free the image buffers outside of a lock,
also causing simultaneous redraw to crash.
* Especially on Windows, re-rendering could crash when drawing an image
that was freed. When RE_RenderInProgress was true it would access the
image buffer and simply return it while it could still contain a pointer
to a render result buffer that was already freed. I don't understand
why this case was there in the first place, so I've removed it.
Possibly fixes bugs #20174, #21418, #21391, #21394.
rendering.
RE_BlenderFrame() and RE_BlenderAnim() are Blender's internal
top-level rendering API functions for a single frame and a series of
frames, respectively. These functions rely on global variables to
keep render pipeline states. Freestyle's stroke rendering was also
using RE_BlenderFrame to render a temporary scene of stroke meshes.
These nested calls of the top-level rendering API functions were
causing broken render pipeline states and eventually led to a crash.
This commit is intended to fix the issue, by introducing an rendering
API function RE_RenderFreestyleStrokes specifically used for stroke
rendering in Freestyle. The new function does not do anything with
regard to the global variables in the rendering API implementation.
Implementation note: this was done by giving each Render a slot number,
and for every slot a new Render will be created. Not sure if this is
ideal, but it ensures that all passes, render info, etc are separate so
you can also compare render layers and passes, in 2.4x only whatever it
was currently displaying was backed up.
Disables save buffers and full sample when render border is turned on (render doesn't work otherwise because save buffers doesn't support border rendering).
- added an option to BLI_convertstringframe and BLI_convertstringframe_range to add digits if not found.
- removed BLI_convertstringframe where its obviously not needed - such as loading movies and sounds.
Ambient occlusion: multiplied with direct lighting by default, add
is also still available and more blending methods might be added if
they are useful. This is fundamentally a non physical effect.
Environment lighting: always added as you would expect (though you can
subtract by specifying negative energy). This can be just white or take
colors or textures from the world.
Indirect lighting: only supported for AAO at the moment (and is still
too approximate), and also is always added. A factor is available to
specify how much is added, though value 1.0 is correct.
Also:
* Material ambient value now defaults to 1.0.
* Added Environment, Indirect and Emit pass.
* "Both" blending method is no longer available.
* Attenuation, sampling parameters are still shared, some could be split
up, though if they are different this would affect performance.
Was only updating the animation system for the render process - if scene render was skipped
(as is the case for comp trees without renderlayer nodes) then the animation system wouldn't
update.
Added in an update here, Aligorith, maybe you'd like to doublecheck.
- scene.render_data.frame_path(frame=num), returns the output path for rending images of video.
- scene.render_data.file_extension, readonly attribute, gives the extension ".jpg", ".mov" etc
- player support was guessing names, use the above functions to get the actual names used, accounting for #'s replacing numbers.
This works with operator properties - if you pass the name of a scene and renderlayer to
the screen.render operator, it will render that layer as a single layer re-render.
