Extend skip support to recognise the liquid skip texturenames the same as
metlslime's "newskip" utility. Add documentation and describe hint
surfaces (briefly) as well.
Signed-off-by: Kevin Shanahan <kmshanah@disenchant.net>
The old logic did not deal properly with the case where the source entity
did not add any brushes.
Signed-off-by: Kevin Shanahan <kmshanah@disenchant.net>
* Output to temp file and only move to final location upon success
* Fix echo of command in verbose mode (requires quotes)
* Don't use $(call ...) to invoke the groff command
* Use printf to generate the \r for the sed "unix2dos" replacement
Signed-off-by: Kevin Shanahan <kmshanah@disenchant.net>
Normally the engine won't do collision detection against a bmodel
unless the entity being tested is within the model's bounds. This
means collision doesn't work as expected when a model has clip brushes
that extend beyond the bounds of any visible brushes. This fixes that
case.
Signed-off-by: Kevin Shanahan <kmshanah@disenchant.net>
Add the -soft command line option which implements post-processing on
the lightmap surface to blend adjacent samples together to smooth out
hard shadow lines.
Signed-off-by: Kevin Shanahan <kmshanah@disenchant.net>
A relatively small amount of state to keep, just leave it there rather
than inventing any more types to pass around. Now that lightmap_t,
surfinfo_t & texorg_t are separate, I'm less concerned.
Signed-off-by: Kevin Shanahan <kmshanah@disenchant.net>
Substantial changes to TestLineOrSky which now becomes TraceLine to
more conveniently trace lines through the BSP and, terminate the trace
on specific contents and return information about the termination
point.
TraceLine also more correcly handles the cases where points are close
enough to the node planes to be considered "on-node" to ensure we get
a good intersection point back, when requested.
Finally, the algorithm for making the small adjustments to surface
points in CalcPoints has been changed so if the surface point can't
see the midpoint, we find the obscuring surface and move the surface
point just above that. Seems to work better and eliminates some (but
not quite all - midpoint is still not quite the ideal point to use)
random black spots.
Signed-off-by: Kevin Shanahan <kmshanah@disenchant.net>
"nominlimit" is a more sensible default - people expect negative
lights to be able to subtract from minlight. The negative colors never
really worked properly and there's not really any worthwhile use for
the (that I know of).
Hopefully nobody will be too upset by these two changes to the old
behaviour.
Signed-off-by: Kevin Shanahan <kmshanah@disenchant.net>
This option has been broken for a while, because we only dealt with
positive vs. negative colours and didn't properly handle the light
intensity.
All this messing around to try and correctly handle negative colors
seems just stupid. I might have to remove support for that in
future... is there really any good use for it?
Signed-off-by: Kevin Shanahan <kmshanah@disenchant.net>
More messing with data structures. Now a single sample has a
brightness and colour component and a lightmap structure captures all
the non-surface lightmap data.
The pointer arithmetic for iterating over the supersamples in
WriteLightmaps is perhaps a little silly, but it works well enough. It
might be smarter to generate the sample points in a different order
instead. Maybe later.
Signed-off-by: Kevin Shanahan <kmshanah@disenchant.net>
A lot of churn for a small gain, but now the surface information is
separate from the lightmap data. And we can pass the surface
information around via a const pointer.
Signed-off-by: Kevin Shanahan <kmshanah@disenchant.net>
The big lightinfo_t structure includes a lot of things that are only
loosely related and not used together. Start the cleanup by pulling
out the texture coordinate tranformation data that is used to generate
the surface sample points.
Signed-off-by: Kevin Shanahan <kmshanah@disenchant.net>
Brush models can now self shadow without casting shadows on their
environment, using the "_shadowself" entity key.
Signed-off-by: Kevin Shanahan <kmshanah@disenchant.net>
Kevin Shanahan