essai du trolldi sur le voxel
This commit is contained in:
tth
parent
85c12a1064
commit
285257cfac
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@ -1,4 +1,4 @@
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POVOPT=" -d +q9 -a +W1920 +H1080 -v +WT4"
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POVOPT=" -d +q9 +a +W1920 +H1080 -v +WT4"
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@ -151,7 +151,7 @@ end subroutine lorentz_0
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!-----------------------------------------------------------
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! -- some support functions --
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!-----------------------------------------------------------
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! usage : evolvopick
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! usage : evolvopick & voxelize
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subroutine interp4dp (ina, inb, out, dpk)
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double precision, dimension(4), intent(in) :: ina, inb
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double precision, dimension(4), intent(out) :: out
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@ -10,20 +10,22 @@ if [ $? -ne 0 ] ; then
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exit 1
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fi
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./voxelize > WS/voxels.dat
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./vox2inc.awk < WS/voxels.dat > WS/voxels.inc
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grep NbrVox WS/voxels.inc
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TMPNG="/dev/shm/voxvidz.png"
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NBIMG=360
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NBIMG=1500
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printf "#declare NbImg = %d;\n" $NBIMG | tee WS/nbimg.inc
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for idx in $( seq 0 $(( NBIMG - 1)) )
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do
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dst=$(printf "frames/voxel/%05d.png" $idx)
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delta=$( echo "scale=6 ; ${idx}/360" | bc -l)
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delta=$( echo "scale=6 ; ${idx}/${NBIMG}" | bc -l)
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echo "Renderbox work on "$dst" delta = " $delta
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./voxelize "WS/voxels.inc" $delta
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grep 'NbrVox' "WS/voxels.inc"
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povray -ishowvoxels.pov -K$idx ${POVOPT} \
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-O${TMPNG} 2> WS/toto.err
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if [ $? -ne 0 ] ; then
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@ -33,24 +35,30 @@ do
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#exit 1
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fi
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titre='Voxelisation - tTh - avril 2022'
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numbers=$(tail -1 WS/camvox.log | \
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awk '{printf " %6.3f %6.3f %6.3f", $1, $2, $3}')
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echo "$numbers"
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titre='Voxelisation - tTh - Avril 2022'
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numbers=$(tail -1 WS/camvox.log | \
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awk '{printf " K=%5d : %6.3f %6.3f %6.3f", \
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$1, $2, $3, $4}')
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echo "numbers " "$numbers" " txtidx " $txtidx
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convert ${TMPNG} \
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-fill Gray70 \
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-kerning 1 \
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-pointsize 24 \
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-fill Orange \
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-kerning 2 \
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-pointsize 32 \
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-font AvantGarde-Book \
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-gravity South-West \
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-annotate +20+32 "$titre" \
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-annotate +20+45 "$titre" \
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-pointsize 24 \
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-annotate +20+10 "$numbers" \
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\
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$dst
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grep 'Parse Time' WS/toto.err
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grep 'Trace Time' WS/toto.err
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echo ; sleep 15
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done
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./encode.sh frames/voxel/ voxel-2.mp4
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./encode.sh frames/voxel/ voxel-3.mp4
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@ -1,7 +1,7 @@
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/*
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* SHOW VOXELS
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*
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* see also : vox2inc.awk voxelize.f90
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* see also : vox2inc.awk and voxelize.f90
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*/
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#version 3.7;
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@ -17,7 +17,7 @@ global_settings {
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#declare VOXEL = object
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{
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// sphere { 0, 1.18 }
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#local D = 1.0111;
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#local D = 1.92;
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box { <-D, -D, -D>, <D, D, D> }
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}
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@ -26,33 +26,66 @@ object {
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Voxels
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texture {
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pigment { color White }
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finish { phong 0.8 specular 0.8}
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finish { phong 0.6 specular 0.8 }
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}
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translate <-Bary_X, -Bary_Y, -Bary_Z>
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rotate <clock*2, 0, clock*1.414>
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/*
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* un peu de calcul empirique ?
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*/
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#local TRK = DIMC/2.0000000;
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translate <-TRK, -TRK, -TRK>
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// rotate <clock*0.22, 0, clock*0.17>
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}
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//----------------------------------------------------------------
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// light_source { <-12, 45, -25> color Gray70 }
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light_source { <-52, 5, -38> color Yellow*0.45 }
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light_source { < 59, 5, 48> color Gray20 }
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light_source { < 3, 59, 8> color Red*0.65 }
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light_source { < 8, -61, 3> color Green*0.75 }
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#declare TriAxe = object
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{
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#local Sz = 300;
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#local Ra = 0.20;
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union {
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cylinder { <-Sz, 0, 0>, <Sz, 0, 0>, Ra pigment { color Red } }
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cylinder { <0, -Sz, 0>, <0, Sz, 0>, Ra pigment { color Green } }
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cylinder { <0, 0, -Sz>, <0, 0, Sz>, Ra pigment { color Blue } }
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}
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finish { phong 0.6 specular 0.8 }
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}
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#declare NormClock = (clock/360);
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object { TriAxe }
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#declare ECAM = 88 - (73*NormClock);
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#declare XCAM = ECAM * sin(radians(clock));
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#declare YCAM = -12;
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#declare ZCAM = ECAM * cos(radians(clock));
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#declare ACAM = 65 + (48*NormClock);
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plane {
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<0, 1, 0>, -100
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texture {
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pigment { color srgb <0.203, 0.185, 0.191> }
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finish { phong 0.18 metallic 0.55 }
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}
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}
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light_source { <-29, 45, -27> color Gray70 }
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light_source { <-52, 5, -48> color Yellow*0.45 }
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light_source { < 59, 45, 48> color Gray20 }
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light_source { < 59, -45, 48> color Gray20 }
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light_source { < 9, 59, 18> color Red*0.65 }
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light_source { < 8, -48, 3> color Green*0.75 }
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#include "WS/nbimg.inc"
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#declare NormClock = (clock/NbImg);
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#declare ECAM = 190 - (100*NormClock);
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#declare CKsmall = NormClock * 77.20;
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#declare Offset = 0.10;
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#declare XCAM = ECAM * (sin(radians(CKsmall)) + Offset);
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#declare YCAM = 16;
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#declare ZCAM = ECAM * (cos(radians(CKsmall)) + Offset);
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#declare ACAM = 65 + (53*NormClock);
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// #declare XCAM = ECAM * 0.8;
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// #declare ZCAM = ECAM * 0.35;
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#if (0 = clock)
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#fopen CL "WS/camvox.log" write
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#else
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#fopen CL "WS/camvox.log" append
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#end
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#write (CL, NormClock, " ", ECAM, " ", ACAM, "\n")
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#write (CL, clock, " ", NormClock, " ", ECAM, " ", ACAM, "\n")
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#fclose CL
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camera {
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@ -9,37 +9,47 @@ program voxelize
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implicit none
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integer, parameter :: DIM = 100
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integer, parameter :: DIMC = 200
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integer, dimension(:,:,:), allocatable :: cube
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type(t_point3d), dimension(:), allocatable :: points
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integer :: errcode, foo
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integer :: errcode, foo, argc
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integer :: ix, iy, iz
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integer :: nbr_points
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double precision, dimension(4) :: coefs, KB
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double precision :: dval
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integer :: nbr_points, maxcube
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double precision, dimension(4) :: KA, KB, KM
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double precision :: dmaxcube, delta
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character(200) :: filename, string
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write(0, *) "--- start of voxelize"
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allocate (cube(DIM,DIM,DIM), stat=errcode)
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argc = IARGC()
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if (2 .NE. argc) then
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STOP ": VOXELIZE NEED PARAMETERS !"
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endif
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call getarg(1, filename)
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call getarg(2, string) ; read (string, *) delta
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write(0, "( ' --- delta = ', F11.6)") delta
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allocate (cube(DIMC,DIMC,DIMC), stat=errcode)
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if (0 .NE. errcode) then
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STOP " : NO ENOUGH MEMORY FOR CUBE"
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endif
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nbr_points = 2800000
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nbr_points = 7000000
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allocate(points(nbr_points), stat=errcode)
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if (0 .NE. errcode) then
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STOP " : NO ENOUGH MEMORY FOR POINTS"
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endif
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coefs(1) = 2.23 ; coefs(2) = 0.42
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coefs(3) = -0.64 ; coefs(4) = -2.42
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KB(1) = 1.51 ; KB(2) = -1.89
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KB(3) = 1.69 ; KB(4) = 0.79
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call compute_pickover(points, KB)
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KA(1) = -1.3402 ; KA(2) = 1.5245
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KA(3) = 1.0966 ; KA(4) = -2.3423
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KB(1) = -1.2100 ; KB(2) = 1.3685
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KB(3) = 1.1237 ; KB(4) = -2.1992
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call interp4dp(KA, KB, KM, delta)
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write(0, "(' --- coefs = ', 4F11.6)") KM
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call compute_pickover(points, KM)
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call clear_cube(cube)
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!
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! and now, we loop over all the pre-computed
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! points of the attractor
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!
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@ -50,19 +60,13 @@ program voxelize
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cube(ix,iy,iz) = cube(ix,iy,iz) + 1
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enddo
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dval = DBLE(MAXVAL(cube))
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write(0, *) "--- maximum of the cube= ", dval
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maxcube = MAXVAL(cube)
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dmaxcube = DBLE(maxcube)
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write(0, *) "--- maxval(cube) = ", maxcube
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do foo=1, nbr_points
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call fcoor2icoor(points(foo)%x, ix)
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call fcoor2icoor(points(foo)%y, iy)
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call fcoor2icoor(points(foo)%z, iz)
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print *, ix, iy, iz, &
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cube(ix,iy,iz), &
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DBLE(cube(ix,iy,iz)) / dval
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enddo
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call spit_cube_as_union(filename, cube, &
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maxcube/1000, dble(9000.00))
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dval = DBLE(MAXVAL(cube))
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write(0, *) "--- end of voxelize"
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!-----------------------------------------------------
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@ -76,15 +80,17 @@ subroutine fcoor2icoor(in, out)
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integer :: outvalue
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invalue = (in + 2.0) / 2.0
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outvalue = int(invalue * real(DIM/2))
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outvalue = int(invalue * real(DIMC/2))
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! add molly-guard here
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out = outvalue
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if (outvalue .LT. 1) out = 1
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if (outvalue .GE. DIM) out = DIM-1
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if (outvalue .GE. DIMC) out = DIMC-1
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end subroutine
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!------------------------------------------------------------
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! USELESS USE OF LOOPS !
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subroutine clear_cube(cube)
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type(integer), dimension(:,:,:), intent(out) :: cube
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@ -100,20 +106,93 @@ subroutine clear_cube(cube)
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end subroutine
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!------------------------------------------------------------
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subroutine spit_cube_as_union(fname, datas, notused)
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character(*) :: fname
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type(integer), dimension(:,:,:), intent(in) :: datas
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integer :: notused
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subroutine print_cube(cube, points, scaling)
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type(integer), dimension(:,:,:), intent(in) :: cube
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type(t_point3d), dimension(:), intent(in) :: points
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double precision, intent(in) :: scaling
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integer :: fd, errcode, foo
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integer :: foo
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open (newunit=fd, file='WS/k-pick.txt', &
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status='unknown', position='append', &
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do foo=1, nbr_points
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call fcoor2icoor(points(foo)%x, ix)
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call fcoor2icoor(points(foo)%y, iy)
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call fcoor2icoor(points(foo)%z, iz)
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print *, ix, iy, iz, &
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cube(ix,iy,iz), &
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DBLE(cube(ix,iy,iz)) / scaling
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enddo
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end subroutine
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!------------------------------------------------------------
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! generation Povray STL source file !
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subroutine spit_cube_as_union(fname, voxels, limit, scaling)
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character(*), intent(in) :: fname
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type(integer), dimension(:,:,:), intent(in) :: voxels
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integer, intent(in) :: limit
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double precision, intent(in) :: scaling
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integer :: fd, errcode
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integer :: ix, iy, iz, maxv
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integer :: nbrvox = 0
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double precision :: bx, by, bz, valeur
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character(200) :: chaine
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! molly-guard
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maxv = limit
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if (maxv .LT. 2) maxv = 2
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open (newunit=fd, file=trim(fname), &
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status='replace', &
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action='write', iostat=errcode)
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if (0 .NE. errcode) then
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STOP ' : SPITUNION : FAIL OPEN OUTPUT FILE'
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STOP ' : SPIT UNION, FAIL OPEN OUTPUT FILE'
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endif
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write(fd, *) "// generated file, don't touch it bastard !"
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write(fd, *) "// version 2.09"
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write(fd, *) "#declare DIMC = ", DIMC, ";"
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write(fd, *) "#declare Voxels = object {"
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write(fd, *) "union {"
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bx = 0.0 ; by = 0.0 ; bz = 0.0
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do ix=lbound(voxels,1), ubound(voxels,1)
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do iy=lbound(voxels,2), ubound(voxels,2)
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do iz=lbound(voxels,3), ubound(voxels,3)
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if (cube(ix,iy,iz) .LT. maxv) then
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! print *, "foo = ", foo, cube(ix,iy,iz)
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cycle ! REDO FROM START
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endif
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nbrvox = nbrvox + 1
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bx = bx + dble(ix)
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by = by + dble(iy)
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bz = bz + dble(iz)
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valeur = DBLE(cube(ix,iy,iz)) / scaling
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! XXX
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if (valeur .GT. 1.0) then
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valeur = 1.0
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endif
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write(chaine, "( 'translate <', I4, ',', I4, ',', I4, '> ' )") &
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ix, iy, iz
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write(unit=fd, &
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fmt="( 'object { VOXEL scale ', F11.6, 1X, A, ' }' )", &
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iostat=errcode) &
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valeur, trim(chaine)
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enddo
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enddo
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enddo
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write(fd, *) "} }"
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write(fd, *) "// limit = ", limit
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write(fd, "( '#declare NbrVox = ', I9, ';' )") nbrvox
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write(fd, "( '#declare Bary_X = ', F11.6, ';' )") bx / dble(nbrvox)
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write(fd, "( '#declare Bary_Y = ', F11.6, ';' )") by / dble(nbrvox)
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write(fd, "( '#declare Bary_Z = ', F11.6, ';' )") bz / dble(nbrvox)
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close(fd)
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