diff --git a/r_triapi.c b/r_triapi.c
index 58aa67fe..cb477f5c 100644
--- a/r_triapi.c
+++ b/r_triapi.c
@@ -228,6 +228,12 @@ TriTexCoord2f
 void TriTexCoord2f( float u, float v )
 {
 	//pglTexCoord2f( u, v );
+	u = fmod(u, 10);
+	v = fmod(v, 10);
+	if( isnan(u) )
+		u = 0;
+	if( isnan(v))
+		v = 0;
 	while( u < 0 )
 		u = u + 1;
 	while( v < 0 )
@@ -237,6 +243,8 @@ void TriTexCoord2f( float u, float v )
 		u = u - 1;
 	while( v > 1 )
 		v = v - 1;
+
+
 	s = r_affinetridesc.skinwidth * bound(0.01,u,0.99);
 	t = r_affinetridesc.skinheight * bound(0.01,v,0.99);
 }