lib/gamnit: add support for map_Ka in the .mtl parser

Signed-off-by: Alexis Laferrière <alexis.laf@xymus.net>

diff --git a/lib/gamnit/model_parsers/mtl.nit b/lib/gamnit/model_parsers/mtl.nit
index b962fe1..fc34e47 100644 (file)
--- a/lib/gamnit/model_parsers/mtl.nit
+++ b/lib/gamnit/model_parsers/mtl.nit
@@ -64,6 +64,8 @@ class MtlFileParser
                                        material.dissolved = 1.0 - read_number
                                else if token == "illum" then
                                        material.illumination_model = read_number.to_i
+                               else if token == "map_Ka" then
+                                       material.map_ambient = read_until_eol_or_comment
                                else if token == "map_Kd" then
                                        material.map_diffuse = read_until_eol_or_comment
                                else if token == "map_Bump" then
@@ -111,6 +113,9 @@ class MtlDef
        # Illumination model
        var illumination_model = 0
 
+       # Ambient map
+       var map_ambient: nullable String = null
+
        # Diffuse map
        var map_diffuse: nullable String = null
 
@@ -126,6 +131,6 @@ class MtlDef
        # Collect non-null maps from `map_diffuse, map_bump, map_specular, map_exponent`
        fun maps: Array[String]
        do
-               return [for m in [map_diffuse, map_bump, map_specular, map_exponent] do if m != null then m]
+               return [for m in [map_ambient, map_diffuse, map_bump, map_specular, map_exponent] do if m != null then m]
        end
 end