Any way to enable full bump maps and displacement maps in dx8.1

[holydeadpenguins]

Is there any way to enable fullres displacement maps and full bump maps in half life 2 without switching to direct x 9.0? I remember i once had full bump maps in hl2 after switching back and forth from 8.1 to 9.0 then staying with 8.1.

I'm playing on a 5700.

 

[giant384]

same here i had full bumpmaps on with my 5700 and not they look like crap