puts "========"
puts "Alpha test modes"
puts "========"

# create box
box b 1 2 3

# draw box
vinit View1
vclear
vzbufftrihedron
vaxo
vdisplay -dispMode 1 b
vfit
vtexture b [locate_data_file images/marker_box2.png]
vrotate 0.2 0.0 0.0
vaspects -setAlphaMode mask 0.5
vmoveto 250 250

# take snapshots
vrenderparams -msaa 0 -alphaToCoverage 0
vcaps -ffp 1
vdump $::imagedir/${::casename}_msaa0_ffp.png

vcaps -ffp 0
vdump $::imagedir/${::casename}_msaa0.png

vrenderparams -msaa 2 -alphaToCoverage 0
vdump $::imagedir/${::casename}_msaa2.png

vrenderparams -msaa 2 -alphaToCoverage 1
vdump $::imagedir/${::casename}_msaa2_cov.png

vrenderparams -msaa 8 -alphaToCoverage 0
vdump $::imagedir/${::casename}_msaa8.png

vrenderparams -msaa 8 -alphaToCoverage 1
vdump $::imagedir/${::casename}_msaa8_cov.png