Add sound queue when on chasm edge

shader/wall/basic.geom

@@ -10,8 +10,7 @@ out vec3 gTexCoords;
 float isLHS (vec2 startV, vec2 testV)
 { return sign( -startV.x * testV.y + startV.y * testV.x); }
 void main()
-{ gAng = vTexAng[0].y;
-  float tcoordz = vTexAng[0].x;
+{ float tcoordz = vTexAng[0].x;
   vec2 p1xy = gl_in[0].gl_Position.xy;
   vec2 p2xy = gl_in[0].gl_Position.zw;
   vec4 p1 = vec4 (gl_in[0].gl_Position.xy,0,1);
@@ -25,18 +24,22 @@ void main()
   gPos = p1; 
   gl_Position = vec4(theMat * p1); 
   gTexCoords = vec3 (0,0,tcoordz);
+  gAng = vTexAng[0].y;
   EmitVertex();
   gPos = p3; 
   gl_Position = vec4(theMat * p3); 
   gTexCoords = vec3 (0,2,tcoordz);
+  gAng = vTexAng[0].y;
   EmitVertex();
   gPos = p2; 
   gl_Position = vec4(theMat * p2); 
   gTexCoords = vec3 (tcoordx,0,tcoordz);
+  gAng = vTexAng[0].y;
   EmitVertex();
   gPos = p4;
   gl_Position = vec4(theMat * p4); 
   gTexCoords = vec3 (tcoordx,2,tcoordz);
+  gAng = vTexAng[0].y;
   EmitVertex();
   EndPrimitive();
 }