Merge pull request #4925 from JeffM2501/animated_meshes_GL11

[rmodels] support CPU animation in OpenGL 1.1

src/rmodels.c

@@ -1423,9 +1423,17 @@ void DrawMesh(Mesh mesh, Material material, Matrix transform)
 
     rlEnableTexture(material.maps[MATERIAL_MAP_DIFFUSE].texture.id);
 
-    rlEnableStatePointer(GL_VERTEX_ARRAY, mesh.vertices);
+    if (mesh.animVertices)
+        rlEnableStatePointer(GL_VERTEX_ARRAY, mesh.animVertices);
+    else
+        rlEnableStatePointer(GL_VERTEX_ARRAY, mesh.vertices);
+
     rlEnableStatePointer(GL_TEXTURE_COORD_ARRAY, mesh.texcoords);
-    rlEnableStatePointer(GL_NORMAL_ARRAY, mesh.normals);
+    if (mesh.normals)
+        rlEnableStatePointer(GL_VERTEX_ARRAY, mesh.animNormalss);
+    else
+        rlEnableStatePointer(GL_NORMAL_ARRAY, mesh.normals);
+
     rlEnableStatePointer(GL_COLOR_ARRAY, mesh.colors);
 
     rlPushMatrix();