Use the Depth slider to adjust the depth of the background Use the x and y sliders to adjust which direction the depth is perceived Use the resolution slider to adjust how smooth the depth is but be careful! The more resolution, the less depth there is! Press the space key to update the depth.
thanks @griffpatch @griffpatch_tutor for explaining how to make shadows and such. Copy this link and paste it in a new tab if it isn't a hyperlink. idk if it is. https://www.youtube.com/channel/UCawsI_mlmPA7Cfld-qZhBQA