more enginiering

Fraktalism/WS/.gitignore

@@ -1,2 +1,4 @@
 *.inc
 *.err
+*.dat
+*.log

Fraktalism/mkvoxvidz.sh

@@ -13,21 +13,42 @@ fi
 ./voxelize > WS/voxels.dat
 ./vox2inc.awk < WS/voxels.dat > WS/voxels.inc
 
-for idx in $(seq 0 359)
+TMPNG="/dev/shm/voxvidz.png"
+NBIMG=360
+for idx in $( seq   0 $(( NBIMG - 1)) )
 do
 
 	dst=$(printf "frames/voxel/%05d.png" $idx)
-	echo "renderbox work on " $dst
+	delta=$( echo "scale=3 ; ${idx}/360" | bc -l)
+	echo "Renderbox work on " $dst "        tu"  $delta
+
 	povray		-ishowvoxels.pov -K$idx ${POVOPT}	\
-			-O${dst} 2> WS/toto.err
+			-O${TMPNG} 2> WS/toto.err
 	if [ $? -ne 0 ] ; then
 		echo "ERROR ERROR ERROR ERROR"
-		tail -20 WS/toto.err
-		exit 1
+		tail -15 WS/toto.err
+		sleep 20
+		#exit 1
 	fi
+
+	titre='>>> Voxelisation - tTh - avril 2022'
+	numbers=$(tail -1 WS/camvox.log |		\
+		  awk '{printf ">>>   %6.3f   %6.3f   %6.3f", $1, $2, $3}')
+	echo $numbers
+
+	convert		${TMPNG}			\
+			-fill  Cyan			\
+			-kerning 1			\
+			-pointsize 16			\
+			-font AvantGarde-Book		\
+			-gravity South-West		\
+			-annotate +20+32 "$titre"	\
+			-annotate +20+10 "$numbers"	\
+			$dst
+
 	grep 'Parse Time' WS/toto.err
 	grep 'Trace Time' WS/toto.err
 
 done
 
-./encode.sh frames/voxel/ foo.mp4
+./encode.sh frames/voxel/ voxel-1.mp4

Fraktalism/showvoxels.pov

@@ -7,7 +7,7 @@
 #version 3.7;
 
 global_settings {
-                ambient_light rgb <0.12, 0.04, 0.04>
+                ambient_light rgb <0.04, 0.04, 0.04>
                 assumed_gamma 1.0
                 }
 //----------------------------------------------------------------
@@ -17,32 +17,50 @@ global_settings {
 #declare VOXEL = object
 {
 // sphere { 0, 1.18 }
-#local D = 0.880;
+#local D = 1.38;
 box { <-D, -D, -D>, <D, D, D> }
 }
 
 #include "WS/voxels.inc"
 object {
-	Voxels  pigment { color White }
+	Voxels
+	texture {
+		pigment { color White }
+		finish { phong 0.8 specular 0.8}
+		}
 	translate <-Bary_X, -Bary_Y, -Bary_Z>
-	rotate <40, 0, 29>
+	rotate <clock*2, 0, clock*1.414>
 	}
 
 //----------------------------------------------------------------
-light_source { <-12, 45, -25> color Gray90 }
-light_source { < 52, -5,  25> color Gray90 }
+// light_source { <-12,  45, -25> color Gray70 }
+light_source { <-52,  5, -38>   color Yellow*0.55 	}
+light_source { < 59,  5,  48>   color Gray20		}
+light_source { <  3, -59,  8>   color Red*0.75 		}
+light_source { <  8,  61,  3>   color Green*0.85 	}
 
-#declare ECAM = 92;
-#declare XCAM =  ECAM * sin(radians(clock));
-#declare YCAM =  -20;
-#declare ZCAM =  ECAM * cos(radians(clock));
+#declare NormClock = (clock/360);
+
+#declare ECAM  =  88 - 23*NormClock;
+#declare XCAM  =  ECAM * sin(radians(clock));
+#declare YCAM  =  -12;
+#declare ZCAM  =  ECAM * cos(radians(clock));
+#declare ACAM  =  65 + (27*NormClock);
+
+#if (0 = clock)
+  #fopen CL "WS/camvox.log" write
+#else 
+  #fopen CL "WS/camvox.log" append
+#end
+#write (CL, NormClock, " ", ECAM, " ", ACAM, "\n")
+#fclose CL
 
 camera  {
 	location   	<XCAM, YCAM, ZCAM>
 	// look_at    	<Bary_X, Bary_Y, Bary_Z>
 	look_at		<0, 0, 0>
         right           x*image_width/image_height
-        angle           64
+        angle           ACAM
         }
 
 //----------------------------------------------------------------

Fraktalism/vox2inc.awk

@@ -9,7 +9,7 @@ BEGIN	{
 	print "union {"
 	}
 
-$4 > 120 {
+$4 > 145 {
 	count = $4
 	value = $5
 	if (count > maxcount) 

Fraktalism/voxelize.f90

@@ -10,7 +10,7 @@ program voxelize
   integer, parameter                          :: DIM = 100
   integer, dimension(:,:,:), allocatable      :: cube
   type(t_point3d), dimension(:), allocatable  :: points
-  integer                                     :: errcode, foo, maxi
+  integer                                     :: errcode, foo
   integer                                     :: ix, iy, iz
   double precision, dimension(4)              :: coefs
   double precision                            :: dval
@@ -23,14 +23,14 @@ program voxelize
     STOP " : NO ENOUGH MEMORY FOR CUBE"
   endif
 
-  nbr_points = 3500000
+  nbr_points = 3100000
   allocate(points(nbr_points), stat=errcode)
   if (0 .NE. errcode) then
     STOP " : NO ENOUGH MEMORY FOR POINTS"
   endif
 
-  coefs(1) =  2.24     ;     coefs(2) =  0.43
-  coefs(3) = -0.65     ;     coefs(4) = -2.43
+  coefs(1) =  2.23     ;     coefs(2) =  0.42
+  coefs(3) = -0.64     ;     coefs(4) = -2.42
   call compute_pickover(points, coefs)
 
   call clear_cube(cube)
@@ -46,7 +46,6 @@ program voxelize
   enddo
 
   dval = DBLE(MAXVAL(cube))
-
   write(0, *) "--- cube maximum = ", dval
 
   do foo=1, nbr_points
@@ -78,7 +77,6 @@ subroutine fcoor2icoor(in, out)
 
 end subroutine
 !-----------------------------------------------------
-
 subroutine clear_cube(cube)
   type(integer), dimension(:,:,:), intent(out)  :: cube
 
@@ -92,6 +90,24 @@ subroutine clear_cube(cube)
     enddo
   enddo
 
+end subroutine
+!-----------------------------------------------------
+subroutine spit_cube_as_union(fname, datas, notused)
+  character(*)                                 :: fname
+  type(integer), dimension(:,:,:), intent(in)  :: datas
+  integer                                      :: notused
+
+  integer             :: fd, errcode, foo
+
+  open (newunit=fd, file='WS/k-pick.txt',            &
+        status='unknown', position='append',         &
+        action='write', iostat=errcode)
+  if (0 .NE. errcode) then
+    STOP ' : SPITUNION : FAIL OPEN OUTPUT FILE'
+  endif
+
+  close(fd)
+
 end subroutine
 !-----------------------------------------------------
 end program voxelize