ZBrushCentral

Zbrush can't project details when retopologizing

hi everyone, here’s my model i’m retopologizing

i turned on projection and left the projection slider as 1 as default. and i also set the density in adaptive skin as 5 but when i pressed A for preview i couldn’t get any detail of the original model

after that i tried increased the presubdiv in topology or increased the projection slider or decreased the topo smooth but it seems nothing’s different. is there anybody can help me to slove this? did i forget something or what happened with zbrush? i’m using zbrush 4r5

thanks.

Attachments

1.jpg

untitled.jpg

and some pionts seem can’t be moved, too @.@ i don’t know why but some point i drew yesterday can’t be moved when i use move mode now @.@
some body help please :((