I have low quality graphics card it cost 50 english pounds. i have just started using z brush
and started to notice i am having trouble with the current project. The tutorial
i am following doesnt have polygons missing at the sides of the model when in isolation mode.
my mddelhas polygons missing on the side of the mesh. i am not sure wether this my graphics card.
Also my lighting seems to be diffeent from the final resul ive posted both tutorials is the one with better
lighting.
Please if anyone can explain or give me some adivce on the following
Attachments

