diff --git a/source/build/include/animvpx.h b/source/build/include/animvpx.h
index 196a1010d..08440beb1 100644
--- a/source/build/include/animvpx.h
+++ b/source/build/include/animvpx.h
@@ -85,7 +85,7 @@ int32_t animvpx_nextpic(animvpx_codec_ctx *codec, uint8_t **pic);
 
 void animvpx_setup_glstate(void);
 void animvpx_restore_glstate(void);
-int32_t animvpx_render_frame(animvpx_codec_ctx *codec);
+int32_t animvpx_render_frame(animvpx_codec_ctx *codec, double animvpx_aspect);
 
 void animvpx_print_stats(const animvpx_codec_ctx *codec);
 #endif
diff --git a/source/build/src/animvpx.cpp b/source/build/src/animvpx.cpp
index 339631cde..4038c9c27 100644
--- a/source/build/src/animvpx.cpp
+++ b/source/build/src/animvpx.cpp
@@ -491,7 +491,7 @@ void animvpx_restore_glstate(void)
     texuploaded = 0;
 }
 
-int32_t animvpx_render_frame(animvpx_codec_ctx *codec)
+int32_t animvpx_render_frame(animvpx_codec_ctx *codec, double animvpx_aspect)
 {
     int32_t t = getticks();
 
@@ -518,6 +518,8 @@ int32_t animvpx_render_frame(animvpx_codec_ctx *codec)
     }
 
     float vid_wbyh = ((float)codec->width)/codec->height;
+    if (animvpx_aspect > 0)
+        vid_wbyh = animvpx_aspect;
     float scr_wbyh = ((float)xdim)/ydim;
 
     float x=1.0, y=1.0;
diff --git a/source/duke3d/src/anim.cpp b/source/duke3d/src/anim.cpp
index ee18852ff..46890e6f8 100644
--- a/source/duke3d/src/anim.cpp
+++ b/source/duke3d/src/anim.cpp
@@ -329,7 +329,20 @@ int32_t Anim_Play(const char *fn)
 
             ototalclock = totalclock + 1; // pause game like ANMs
 
-            animvpx_render_frame(&codec);
+            if (anim)
+            {
+                if (anim->frameaspect1 == 0 || anim->frameaspect2 == 0)
+                    animvpx_render_frame(&codec, 0);
+                else
+                    animvpx_render_frame(&codec, anim->frameaspect1 / anim->frameaspect2);
+            }
+            else
+            {
+                if (origanim->frameaspect1 == 0 || origanim->frameaspect2 == 0)
+                    animvpx_render_frame(&codec, 0);
+                else
+                    animvpx_render_frame(&codec, origanim->frameaspect1 / origanim->frameaspect2);
+            }
 
             VM_OnEventWithReturn(EVENT_CUTSCENE, g_player[screenpeek].ps->i, screenpeek, framenum);
 
diff --git a/source/duke3d/src/anim.h b/source/duke3d/src/anim.h
index c0045e76a..e319ea6fa 100644
--- a/source/duke3d/src/anim.h
+++ b/source/duke3d/src/anim.h
@@ -30,6 +30,7 @@ typedef struct {
 
 typedef struct
 {
+    double frameaspect1, frameaspect2;
     uint8_t* animbuf;
     animsound_t *sounds;
     uint16_t numsounds;
diff --git a/source/duke3d/src/game.cpp b/source/duke3d/src/game.cpp
index 0d32f48d3..4f3e8cf3a 100644
--- a/source/duke3d/src/game.cpp
+++ b/source/duke3d/src/game.cpp
@@ -172,6 +172,7 @@ enum gametokens
     T_DELAY,
     T_RENAMEFILE,
     T_GLOBALGAMEFLAGS,
+    T_ASPECT,
 };
 
 void G_HandleSpecialKeys(void)
@@ -5191,6 +5192,7 @@ static int parsedefinitions_game(scriptfile *pScript, int firstPass)
     static const tokenlist animTokens [] =
     {
         { "delay", T_DELAY },
+        { "aspect", T_ASPECT },
         { "sounds", T_SOUND },
     };
 
@@ -5318,6 +5320,15 @@ static int parsedefinitions_game(scriptfile *pScript, int firstPass)
                             scriptfile_getnumber(pScript, &temp);
                             animPtr->framedelay = temp;
                             break;
+                        case T_ASPECT:
+                        {
+                            double dtemp, dtemp2;
+                            scriptfile_getdouble(pScript, &dtemp);
+                            scriptfile_getdouble(pScript, &dtemp2);
+                            animPtr->frameaspect1 = dtemp;
+                            animPtr->frameaspect2 = dtemp2;
+                            break;
+                        }
                         case T_SOUND:
                         {
                             char *animSoundsEnd = NULL;