{namespace v=FluidTYPO3\Vhs\ViewHelpers}
<f:if condition="{data.tx_mask_loop_tbt}">
    <div class="row">
            <f:for each="{data.tx_mask_loop_tbt}" as="data_item" iteration="iterator">
                <div class="col-sm-3">
                    <f:if condition="{data_item.tx_mask_image}">
                        <f:for each="{data_item.tx_mask_image}" as="file">
                            <img src="{v:uri.image(src:'{file.uid}', treatIdAsReference:'1')}" alt="{file.alternative}" title="{file.title}" />
                        </f:for>
                    </f:if>
                    <f:if condition="{data_item.tx_mask_category}">
                        <h5>{data_item.tx_mask_category}</h5>
                    </f:if>
                </div>
            </f:for>
    </div>
</f:if>