keep base layer from disappearing when post-processing depth values
keep base layer from disappearing when post-processing depth values

rosamcgee/tangram,DHaylock/tangram,taylorhxu/tangram,zerebubuth/tangram,DHaylock/tangram,ceseale/tangram,taylorhxu/tangram,xvilan/tangram,rosamcgee/tangram,ceseale/tangram,zerebubuth/tangram,taylorhxu/tangram,TitoAgudelo/tangram,tangrams/tangram,DHaylock/tangram,tangrams/tangram,rosamcgee/tangram,zerebubuth/tangram,TitoAgudelo/tangram,ceseale/tangram,xvilan/tangram,xvilan/tangram,TitoAgudelo/tangram