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b7cd4ba795
Implement SAT intersection tests and frustum culling algorithm using BVH trees. New Draw command vfrustumculling to manage frustum culling. Add test cases bugs/vis/bug24307_1 and bugs/vis/bug24307_2. Remove CALL_DEF_BOUNDBOX and CALL_DEF_BOUNDS.
83 lines
2.6 KiB
Plaintext
83 lines
2.6 KiB
Plaintext
puts "========"
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puts "OCC24307 Objects clipping algorithm using BVH performance test: Solid spheres test"
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puts "========"
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# define objects' location parameters and their characteristics
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set SPHERES_NUM 10
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set SPERE_RADIUS 100
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set SPHERE_FINENESS 10
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set PERCENT_OF_INNER_SPHERES 30
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# window parameters
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set SMALL_WIN_WIDTH 512
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set SMALL_WIN_HEIGHT 512
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# other
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array set aSphereNames {}
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set aWithoutClippingSnapshot $imagedir/${casename}_without.png
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set aWithClippingSnapshot $imagedir/${casename}_with.png
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set aDiffImage $imagedir/${casename}_diff.png
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pload VISUALIZATION MODELING
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vinit name=small_wnd l=32 t=32 w=$SMALL_WIN_WIDTH h=$SMALL_WIN_HEIGHT
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vactivate small_wnd
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vfrustumculling 0
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vautozfit 0
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vviewparams -scale 1.953125 -eye 0.57735026918962573 -0.57735026918962573 0.57735026918962573
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vzrange 1 512
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vclear
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vremove -all -noinfo
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puts [vdrawsphere tmp_sph $SPHERE_FINENESS]
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vremove -noinfo tmp_sph
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set aInnerSpheresNum [expr $SPHERES_NUM * $PERCENT_OF_INNER_SPHERES / 100]
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puts ""
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set aDebugInfo "Total number of visible objects: "
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append aDebugInfo $aInnerSpheresNum
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puts $aDebugInfo
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puts ""
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puts "Start displaying spheres without clipping..."
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set aInnerWidthStep [expr $SMALL_WIN_WIDTH / ($aInnerSpheresNum + 1)]
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set aInnerHeightStep [expr $SMALL_WIN_HEIGHT / ($aInnerSpheresNum + 1)]
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set aOuterStep [expr $SPERE_RADIUS * 3 / ($SPHERES_NUM - $aInnerSpheresNum + 1)]
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for {set i 0} {$i < $aInnerSpheresNum} {incr i} {
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set aCurrName "inner_sph"
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append aCurrName $i
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set aX [expr - $SMALL_WIN_WIDTH / 2 + ($i + 1) * $aInnerWidthStep ]
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set aY [expr - $SMALL_WIN_HEIGHT / 2 + ($i + 1) * $aInnerHeightStep ]
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vdrawsphere $aCurrName $SPHERE_FINENESS $aX $aY 0 $SPERE_RADIUS 0 0
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set aSphereNames($i) $aCurrName
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}
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for {set i $aInnerSpheresNum} {$i < $SPHERES_NUM} {incr i} {
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set aCurrName "outer_sph"
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append aCurrName $i
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set aX [expr - $SMALL_WIN_WIDTH - $SPERE_RADIUS * 3 + ($i - $aInnerSpheresNum + 1) * $aOuterStep ]
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set aY [expr - $SMALL_WIN_HEIGHT - $SPERE_RADIUS * 3 + ($i - $aInnerSpheresNum + 1) * $aOuterStep ]
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vdrawsphere $aCurrName $SPHERE_FINENESS $aX $aY 0 $SPERE_RADIUS 0 0
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set aSphereNames($i) $aCurrName
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}
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puts [vfps]
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vdump $aWithoutClippingSnapshot
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puts "All spheres were displayed."
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puts ""
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verase
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puts "Start displaying spheres with clipping..."
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vfrustumculling 1
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vdisplayall
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puts [vfps]
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vdump $aWithClippingSnapshot
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puts "All spheres were displayed."
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puts ""
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set aDiffImageResult [diffimage $aWithClippingSnapshot $aWithoutClippingSnapshot 0.1 0 0 $aDiffImage]
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if {$aDiffImageResult != 0} {
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puts "ERROR : Test failed: there is a difference between images rendered with and without clipping"
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}
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verase
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