Fix texture animation on BSP submodels.

Only world auto cycles, regular BSP submodels use entity frame number
for texture animation.

4 files changed, 13 insertions, 3 deletions

diff --git a/src/refresh/gl/gl.h b/src/refresh/gl/gl.h
index c775266..bd7fe77 100644
--- a/src/refresh/gl/gl.h
+++ b/src/refresh/gl/gl.h
@@ -99,6 +99,8 @@ extern glStatic_t gl_static;
 extern glConfig_t gl_config;
 extern glRefdef_t glr;
 
+extern entity_t gl_world;
+
 typedef struct {
     int nodesVisible;
     int nodesDrawn;
diff --git a/src/refresh/gl/main.c b/src/refresh/gl/main.c
index b41e038..2d02de5 100644
--- a/src/refresh/gl/main.c
+++ b/src/refresh/gl/main.c
@@ -28,6 +28,8 @@ glStatic_t gl_static;
 glConfig_t gl_config;
 statCounters_t  c;
 
+entity_t gl_world;
+
 refcfg_t r_config;
 
 int registration_sequence;
diff --git a/src/refresh/gl/tess.c b/src/refresh/gl/tess.c
index deb339f..3a671a3 100644
--- a/src/refresh/gl/tess.c
+++ b/src/refresh/gl/tess.c
@@ -397,13 +397,12 @@ static int GL_CopyVerts(mface_t *surf)
 
 static int GL_TextureAnimation(mtexinfo_t *tex)
 {
-    int     frame, c;
+    int c;
 
     if (!tex->next)
         return tex->image->texnum;
 
-    frame = (int)(glr.fd.time * 2);
-    c = frame % tex->numframes;
+    c = glr.ent->frame % tex->numframes;
     while (c) {
         tex = tex->next;
         c--;
@@ -503,6 +502,8 @@ void GL_DrawSolidFaces(void)
 
 void GL_DrawAlphaFaces(void)
 {
+    glr.ent = &gl_world;
+
     GL_BindArrays();
 
     GL_Bits(GLS_BLEND_BLEND | GLS_DEPTHMASK_FALSE);
diff --git a/src/refresh/gl/world.c b/src/refresh/gl/world.c
index f8e7d70..8c0a1b4 100644
--- a/src/refresh/gl/world.c
+++ b/src/refresh/gl/world.c
@@ -544,6 +544,11 @@ static void GL_WorldNode_r(mnode_t *node, int clipflags)
 
 void GL_DrawWorld(void)
 {
+    // auto cycle the world frame for texture animation
+    gl_world.frame = (int)(glr.fd.time * 2);
+
+    glr.ent = &gl_world;
+
     GL_MarkLeaves();
 
 #if USE_DLIGHTS