function drawScene() {
            gl.viewport(0, 0, gl.viewportWidth, gl.viewportHeight);
            gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT);
            mat4.perspective(45, aRatio, 0.1, 100, pMatrix);
            setupLight();
            mat4.identity(mvMatrix);

            //////////////////////////// RYSUJ MAPE ///////////////////////////////////////
            mat4.translate(mvMatrix, [0, -4,-20]);
            mat4.scale(mvMatrix,[11,4,1]);
            mvPushMatrix();
            gl.bindBuffer(gl.ARRAY_BUFFER, cubeVertexPositionBuffer);
            gl.vertexAttribPointer(shaderProgram.vertexPositionAttribute, cubeVertexPositionBuffer.itemSize, gl.FLOAT, false, 0, 0);

            gl.bindBuffer(gl.ARRAY_BUFFER, cubeVertexNormalBuffer);
            gl.vertexAttribPointer(shaderProgram.vertexNormalAttribute, cubeVertexNormalBuffer.itemSize, gl.FLOAT, false, 0, 0);

            gl.bindBuffer(gl.ARRAY_BUFFER, cubeVertexTextureCoordBuffer);
            gl.vertexAttribPointer(shaderProgram.textureCoordAttribute, cubeVertexTextureCoordBuffer.itemSize, gl.FLOAT, false, 0, 0);

            gl.activeTexture(gl.TEXTURE0);
            gl.bindTexture(gl.TEXTURE_2D, crateTexture);
            gl.uniform1i(shaderProgram.samplerUniform, 0);


            gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, cubeVertexIndexBuffer);
            setMatrixUniforms();
            gl.drawElements(gl.TRIANGLES, cubeVertexIndexBuffer.numItems, gl.UNSIGNED_SHORT, 0);
            mvPopMatrix();
            mat4.scale(mvMatrix,[1/11,1/4,1]);
            mat4.translate(mvMatrix, [0, 4,21]);
            ////////////////////////////////////



            mat4.translate(mvMatrix, [moveX, moveY, -posZ]);
            segments[0].x = moveX;
            segments[0].y = moveY;
            openglDraw();
            var moveBy = 0.6;
            var favouriteNumber = 0.7;
            mat4.scale(mvMatrix, [0.9, 0.9, .9]);
            for (var j = 1; j < segmentsCounter; j++) {
                var distToParent = getLen(segments[j-1], segments[j]);
                if (distToParent > moveBy) {
                    var tooFar = distToParent - moveBy;
                    var dx = (segments[j - 1].x - segments[j].x) / distToParent;
                    var dy = (segments[j - 1].y - segments[j].y) / distToParent;
                    mat4.translate(mvMatrix, [-dx * favouriteNumber, -dy * favouriteNumber  , 0]);
                    segments[j].x = mvMatrix[12];
                    segments[j].y = mvMatrix[13];
                }
                openglDraw();
            }


        }