Improved GFX macro

Careful this apparently doesn't work on power pc based macs.
This macro puts (more) grass on the flat green areas and improves the clouds in the sky

/console farclip 777
/console horizonfarclip 6226
/console groundeffectdensity 256
/console groundeffectdist 140
/console smallcull 0
/console skycloudlod 3
/console characterambient 0
/console defaultdoodadalpha 100

to turn it off
/console farclip 177
/console horizonfarclip 1305
/console groundeffectdensity 16
/console groundeffectdist 1
/console smallcull 1
/console skycloudlod 1
/console defaultdoodadalpha 1