2 puts "OCC24307 Objects clipping algorithm using BVH performance test: Solid spheres test"
5 # define objects' location parameters and their characteristics
9 set PERCENT_OF_INNER_SPHERES 30
12 set SMALL_WIN_WIDTH 512
13 set SMALL_WIN_HEIGHT 512
16 array set aSphereNames {}
18 pload VISUALIZATION MODELING
20 vinit name=small_wnd l=32 t=32 w=$SMALL_WIN_WIDTH h=$SMALL_WIN_HEIGHT
22 vrenderparams -perfUpdateInterval 0
23 vrenderparams -frustumculling off
25 vviewparams -scale 1.953125 -eye 0.57735026918962573 -0.57735026918962573 0.57735026918962573
29 puts [vdrawsphere tmp_sph $SPHERE_FINENESS]
30 vremove -noinfo tmp_sph
32 set aInnerSpheresNum [expr $SPHERES_NUM * $PERCENT_OF_INNER_SPHERES / 100]
34 set aDebugInfo "Total number of visible objects: "
35 append aDebugInfo $aInnerSpheresNum
39 puts "Start displaying spheres without clipping..."
40 set aInnerWidthStep [expr $SMALL_WIN_WIDTH / ($aInnerSpheresNum + 1)]
41 set aInnerHeightStep [expr $SMALL_WIN_HEIGHT / ($aInnerSpheresNum + 1)]
42 set aOuterStep [expr $SPERE_RADIUS * 3 / ($SPHERES_NUM - $aInnerSpheresNum + 1)]
43 for {set i 0} {$i < $aInnerSpheresNum} {incr i} {
44 set aCurrName "inner_sph"
46 set aX [expr - $SMALL_WIN_WIDTH / 2 + ($i + 1) * $aInnerWidthStep ]
47 set aY [expr - $SMALL_WIN_HEIGHT / 2 + ($i + 1) * $aInnerHeightStep ]
48 vdrawsphere $aCurrName $SPHERE_FINENESS $aX $aY 0 $SPERE_RADIUS 0 0
49 set aSphereNames($i) $aCurrName
51 for {set i $aInnerSpheresNum} {$i < $SPHERES_NUM} {incr i} {
52 set aCurrName "outer_sph"
54 set aX [expr - $SMALL_WIN_WIDTH - $SPERE_RADIUS * 3 + ($i - $aInnerSpheresNum + 1) * $aOuterStep ]
55 set aY [expr - $SMALL_WIN_HEIGHT - $SPERE_RADIUS * 3 + ($i - $aInnerSpheresNum + 1) * $aOuterStep ]
56 vdrawsphere $aCurrName $SPHERE_FINENESS $aX $aY 0 $SPERE_RADIUS 0 0
57 set aSphereNames($i) $aCurrName
60 vrenderparams -perfCounters none
61 vdump $imagedir/${casename}_cull_off_ref.png
62 vrenderparams -perfCounters verbose|nofps|nocpu
63 vdump $imagedir/${casename}_cull_off.png
64 puts "All spheres were displayed."
69 puts "Start displaying spheres with clipping..."
70 vrenderparams -frustumculling on
73 vrenderparams -perfCounters none
74 vdump $imagedir/${casename}_cull_on_ref.png
75 vrenderparams -perfCounters verbose|nofps|nocpu
76 vdump $imagedir/${casename}_cull_on.png
77 puts "All spheres were displayed."
80 set aDiffImageResult [diffimage $imagedir/${casename}_cull_on_ref.png $imagedir/${casename}_cull_off_ref.png 0.1 0 0 $imagedir/${casename}_diff.png]
81 if {$aDiffImageResult != 0} {
82 puts "ERROR : Test failed: there is a difference between images rendered with and without clipping"