All tree texture sheets now contain 4 different texture sets for
different conditions. See Docs/README.materials for details.
Also retire the -summer and -winter variants of tree textures, which
are now redundant.
This should hopefuly prevent any dds files from being loaded when using the default/regional materials file
Signed-off-by: Emilian Huminiuc <emilianh@gmail.com>
532c93cfa06c3be2d5b47cbffe33a89c04433b8a
c32204a079ea204ff10c2961e75e5cea9ae98afc
d66d417dea5dc0cf06222627ba3ccf9de6506630
into the new Materials definitions.
to support more materials definitions in future. Also make a couple of fixes:
- Runway effect now works for both dds and non-dds
- PNG definitions for pa_shoulder and pc_shoulder
- Defined Industrial area (previously this was common with Urban)