If the texture cache doesn't return images in exactly the order or way
that libHSPlasma is expecting, it raises a RuntimeError. We can detect
that we used a cached image and regenerate the data in that case...
instead of just outright failing with "image data size mismatch".
This operator takes a file as an argument and builds a cubemap from it.
Valid options are to supply the output from Plasma's
Graphics.Renderer.GrabCubeMap console command. The operator will find
the other five files and generate a cubemap with the faces saved by
Plasma. Otherwise, any arbitrary image can be supplied. If the filenames
do not fit the expected format, any missing faces will be replaced by
the face specified in the file selector. This will generally result in a
cubemap with six identical faces.
Previously, we allowed OpenGL to generate all of the mip levels for us
in a mipmap. This was pretty doggone fast and worked reasonably well.
However, with cube maps, we will need to use images that are not always
backed in Blender... this is because Blender stores cube maps as one
single image instead of one image per face. So, we need to be able to
generate those mip levels, preferably without touching Blender's
`Image.pixels`, which is slower than Christmas...
Also of note... `Image.gl_load()` will actually scale the iamge to a POT
when Blender is using OpenGL ES... but not on other platforms. So, now,
we just ask Blender to load the image and deal with the POT-izing later.
The con here is that the pure python implementation of the image scaling
function is SLOOOOOOOW. We're talking ~40 seconds to process a 1024x1024
mipmap. No one should be using the reference implementation, however,
and the C++ implementation shows no noticable slowdown over the OpenGL
code.
Whew.
Cube maps in Plasma are six separate images; however, Blender expects to
be supplied with one image that encompasses all of the cube faces.
Therefore, our texture cache needs to be able to support many images for
one request.
This provides the artist the ability to disable exporting layers that
would be DynamicCamMap (fast) in MOUL but DynamicEnvMap (slow) in PotS
in one fell swoop. Please note that disabling env map exporting will NOT
prevent waveset environment maps from exporting.
The lightmap modifier is now a more general "Bake Lighting" modifier
that can control how vertex colors are baked as well. The default vertex
color baking behavior is unaffected. It is now identical to adding a
Bake Lighting modifier, changing it to bake vertex colors without
specifying a pass.
Unfortunately, packed images don't appear to store any kind of modify
time attribute. In the case of those, we're just idly hoping that we can
find one on disk.
What was previously marked as transition cuts would really only cut goal
and POA tracking. Transition cutting requires the addition of a
transition ovveride. The engine supports cutting transitions on
plCameraMsg receipt by the virtual camera. The option looked sloppy on
regions (and should probably be controlled in the transitions), but it
has been added to camera message nodes for more control.
Given that the Plasma World (read: age) is defined per scene, it seems
appropriate to limit the export to the current scene. Other scenes could
potentially have other age definitions...
Arbitrary data from a material's layer flags were able to creep into a
DSpan's criteria, causing geometry that should go into the same span to
spawn a new DSpan with an identical name. Only one of the DSpan objects
would be exported, and Uru would either show crazy stuff or crash as a
result.
On the surface, this allows lightmaps to be exported as PNGs. However,
it also includes a light refactor of image exporting to facilitate
requesting export formats and the targeting of plImageLibMod. This
should better enable #96.
Due to our disabling of texture baking when lightmapping, Blender would
not be able to cast light through transparent materials. Now, we revert
back to something resembling the manual method of lightmapping from the
bad old days of PyPRP.
Do note that because we attempt to batch object baking as much as
possible, I have disabled baking lightmaps to transparent objects.
This is because the transparent objects would need its textures disabled
for it to be baked to, but with the textures disabled, the renderer
would be unable to correctly determine the object's transparency. D'oh!
It would be possible, I suppose, to move them into their own batch, but
that makes the state machine a bit more complex. It would be better to
wait for someone to need that functionality, I think.
This commit includes some bonus improvements for animated parenting
situations that I discovered through sciencing the various MOUL and PotS
PRPs. Hopefully it all works as advertised.
This causes an object to be given a plFilterCoordInterface instead of a
plCoordinateInterface. The difference is that plFilterCoordInterface
will reject changes to certain components of an object's transform. This
is useful in certain parenting situations, namely subworlds.
We're only a BlendSpan if the *first* layer of a material has a blend.
Other layers are permitted to have blend modes, because those don't
affect the blending of the span itself against other spans.
This matches the behaviour of PlasmaMax:
42c4acbc9d/Sources/Tools/MaxConvert/plMeshConverter.cpp (L1205-L1210)
