Add FogEnvironment modifier

korman/exporter/mesh.py

@@ -224,6 +224,11 @@ class MeshConverter(_MeshManager):
         if mods.lighting.rt_lights:
             geospan.props |= plGeometrySpan.kPropRunTimeLight
 
+        # Attach a FogEnvironment if it's non-default
+        fogenv = mods.fogenv.environment
+        if fogenv and fogenv != bpy.context.scene.world:
+            geospan.fogEnvironment = self._mgr.find_create_key(plFogEnvironment, bl=bo, name=fogenv.name)
+
         # Harvest lights
         permaLights, permaProjs = self._exporter().light.find_material_light_keys(bo, bm)
         for i in permaLights:

korman/properties/modifiers/render.py

@@ -82,6 +82,39 @@ class PlasmaFadeMod(PlasmaModifierProperties):
             mod.farTrans = self.far_trans
 
 
+fog_types = {
+    "none":     plFogEnvironment.kNoFog,
+    "linear":   plFogEnvironment.kLinearFog,
+    "exp2":     plFogEnvironment.kExp2Fog
+}
+
+class PlasmaFogEnvMod(PlasmaModifierProperties):
+    pl_id = "fogenv"
+
+    bl_category = "Render"
+    bl_label = "Fog Environment"
+    bl_description = "Adjust per-object fog settings"
+    bl_icon = "MAT_SPHERE_SKY"
+
+    environment = PointerProperty(name="Environment",
+                                  description="Environment defining the fog settings for this object",
+                                  type=bpy.types.World)
+
+    def export(self, exporter, bo, so):
+        if self.environment is None or self.environment == bpy.context.scene.world:
+            # Don't generate a FogEnv for the default Age FNI fog
+            return
+
+        fe = exporter.mgr.find_create_object(plFogEnvironment, bl=bo, name=self.environment.name)
+        env = self.environment.plasma_fni
+
+        fe.type = fog_types[env.fog_method]
+        fe.color = hsColorRGBA(env.fog_color.r, env.fog_color.g, env.fog_color.b, 1.0)
+        fe.start = env.fog_start
+        fe.end = env.fog_end
+        fe.density = env.fog_density
+
+
 class PlasmaFollowMod(idprops.IDPropObjectMixin, PlasmaModifierProperties):
     pl_id = "followmod"
 

korman/ui/modifiers/render.py

@@ -39,6 +39,27 @@ def fademod(modifier, layout, context):
         # Warn the user that the values are not recommended.
         layout.label("Distance values must be equal or increasing!", icon="ERROR")
 
+def fogenv(modifier, layout, context):
+    row = layout.row()
+    row.label("Environment")
+    row.template_ID(modifier, "environment", new="world.new")
+
+    if modifier.environment:
+        fni = modifier.environment.plasma_fni
+        box = layout.box()
+
+        split = box.split()
+        col = split.column()
+        col.prop(fni, "fog_color", text="")
+
+        col = split.column()
+        col.prop(fni, "fog_method", text="")
+        if fni.fog_method == "linear":
+            col.prop(fni, "fog_start")
+        if fni.fog_method != "none":
+            col.prop(fni, "fog_end")
+            col.prop(fni, "fog_density")
+
 def followmod(modifier, layout, context):
     layout.row().prop(modifier, "follow_mode", expand=True)
     layout.prop(modifier, "leader_type")