three.js textures distorsion -

i have problem textures presentation (no matter if repeated 1 or whole picture - .png file). can see there bizzare distorsion , wonder if there way preserve it.

    var imgfiles = [];     //imgfiles[0] = "img/versimlin.png";     //imgfiles[1] = "img/versimlin.png";     //imgfiles[2] = "img/horsimrnd.png";     imgfiles[3] = "img/horsimrnd.png";     //imgfiles[4] = "img/versimlin.png";     //imgfiles[5] = "img/versimlin.png";     var viewcubematerials = [];     (var = 1; i<7; i++){         viewcubematerials[i-1] = new three.meshbasicmaterial({             map: three.imageutils.loadtexture(imgfiles[i-1]),             side: three.doubleside         })     }     var viewcubegeometry = new three.cubegeometry( 1680,600,1680,1,1,1 )     var viewcube = new three.mesh(viewcubegeometry, new three.meshfacematerial(viewcubematerials ));       scene.add(viewcube); 

as can see there nothing special within code might question of settings dont know.

if can me grateful.

thanks in advance.