Add support for the "crunch" texture compression tool.

[xonotic/xonotic.git] / misc / tools / cached-converter.sh

diff --git a/misc/tools/cached-converter.sh b/misc/tools/cached-converter.sh
index c1063eddbe8816293ce80b70aa4a9195c26bee77..ec976351921dcd0329a86710e2ea5a8f379a1f80 100755 (executable)
--- a/misc/tools/cached-converter.sh
+++ b/misc/tools/cached-converter.sh
@@ -209,7 +209,7 @@ reduce_jpeg2_dds()
 {
        i=$1; shift
        ia=$1; shift
-       o=$1; shift; shift 
+       o=$1; shift; shift
        convert "$i" "$ia" -compose CopyOpacity -composite -type TrueColorMatte "$tmpdir/x.tga" && \
        pickdxta "$dds_tool" "$dds_sepalpha" "$tmpdir/x.tga" "$o" $1
 }
@@ -218,7 +218,7 @@ reduce_jpeg2_dds_premul()
 {
        i=$1; shift
        ia=$1; shift
-       o=$1; shift; shift 
+       o=$1; shift; shift
        convert "$i" "$ia" -compose CopyOpacity -composite -type TrueColorMatte "$tmpdir/x.tga" && \
        pickdxta "$dds_tool" "$dds_prealpha" "$tmpdir/x.tga" "$o" $1
 }
@@ -396,17 +396,31 @@ for F in "$@"; do
                        ;;
        esac
 
-       # configure S2TC
+       # Specific hacks for normalmaps.
        case "$f" in
+               ./maps/*/lm_[0-9][0-9][0-9][13579]) # deluxemap
+                       export S2TC_COLORDIST_MODE=NORMALMAP
+                       export S2TC_RANDOM_COLORS=256
+                       export S2TC_REFINE_COLORS=LOOP
+                       export S2TC_DITHER_MODE=NONE
+                       # Engine ignores alpha channel on these, so we can use the DXT1 black encoding.
+                       export CRUNCH_TEXTYPEFLAGS='-gamma 1.0 -renormalize -rtopmip -uniformMetrics -usetransparentindicesforblack'
+                       ;;
                *_norm)
                        export S2TC_COLORDIST_MODE=NORMALMAP
                        export S2TC_RANDOM_COLORS=256
                        export S2TC_REFINE_COLORS=LOOP
+                       export S2TC_DITHER_MODE=NONE
+                       # Alpha channel here means height.
+                       export CRUNCH_TEXTYPEFLAGS='-gamma 1.0 -renormalize -rtopmip -uniformMetrics'
                        ;;
                *)
                        export S2TC_COLORDIST_MODE=SRGB_MIXED
                        export S2TC_RANDOM_COLORS=64
                        export S2TC_REFINE_COLORS=LOOP
+                       export S2TC_DITHER_MODE=FLOYDSTEINBERG
+                       # Color channel-like images - consider as sRGB.
+                       export CRUNCH_TEXTYPEFLAGS='-gamma 2.2'
                        ;;
        esac