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Author Topic: Image change with render size?  (Read 4117 times)
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MarkJayBee
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Markjaybee Fractal Mark_Jay_Bee
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« on: March 09, 2012, 02:01:34 PM »

Just had a peculiar thing happen when rendering a new param at my final size of
4000x2000 in M3D v1.7.9.1. As you can see from the attached example images,
the composition has completely altered from the preview image!
I've attached both preview and final size params - hope it's something fairly simple,
and down to my settings; wouldn't like to have discovered a bug in M3D!
Any ideas as to why this should happen folks?  confused

Vaclife 640px params:

Mandelbulb3Dv17{
X.....c....E/...0....2E...UKHMS9DYxwzsadRCuNa.5EJUcg.KD4gzvrYwmFWGm0.N7EXY2EMYzD
................................4JI6Q0EpZ.2........Y./..................S/2.....
................/Q.1/......F2...8....2E5.....wY/bbou3EnD/Q.h6j7EUek32dkpXm1.YW6W
z.....kD12../..........wz..................................u1....y1...sD...../..
.w1...sDBcPcKLgP7w9AwURM8f79zo2L7c5OFNnjRG2NHeymswXH9/tnFZl6z.g4GTQHnGkDpmJCe/Ej
WwHM0jqKri4Bz8pe.F5aLnmj......28/...z.........sD/A....sD..E.....................
.............oAnAr1...sD....z./St5.gsZT.EZLy/.TSt5.YuZT.kgLy/.xSt5E/35UE/.......
.....orDZz1.......kz.gvMWUkV.........w/...kC....02...o....E5....e....kHB...UiH5g
...TFqYKexDAk.nz4T6PzfF8A.A60c..p/sg..Eqtzb2aPyD/QReYxTY0.I............/8.kS4p0.
.YqulQA8Sz9.IXBzAbNvz...........UE13zjbFh...fjrwdvgqz0EOf5nlcsxj.gM3ZaYq1z962c..
p/sg..kuvBTuCfwj.gX7FmeMoz9..........oF68szdNJ0..ApKQUUTuz1.kRdIp0byz..kKTKW1q/k
/QV0z57ZL0..R8Zc4xRgz0.wQOr9PExD.ctwMy5pQ.A..QXAj..cU08.Um.k.1A.U08c.cL4q219..8c
U0UBf.Ak.1.cU08..Wn9fM0.U08c..eF.1Ak..8cU0.kE7H9d..cU08.Dx3k.1A.U08c.ATPdIG6..8c
U0EIx/Ak.1.cU08....cU08.zz/cU08.yz1cU08.xz3cU08.33qNgJ46iJaMplKMUAqPgJLPi/G9UkKM
E6..46....E.....4....A....UFjl4NdtqNUYYPo/0IjR5......................c..6.......
...................2./........zj..........2.....................................
................................................................................
.....................2.....3....C....6qPV75N7NoI..kI............................
.sU1....0MU/46.......cNaNaNaNavD........kznNaNaNaN4wz0..........................
..jN./..................................................kz1nAnAnAHtrzEnAnAnAnGxD
OaNaNaNaty1.....................}


VacLife 4000px params:

Mandelbulb3Dv17{
X.....u1...o5...0....2E...UKHMS9DYxwzsadRCuNa.5EJUcg.KD4gzvrYwmFWGm0.N7EXY2EMYzD
................................4JI6Q0EpZ.2........Y./..................S/2.....
................/Q.1/.....Uar1..8....2E5.....kg7ZhG9VakD/Q.h6j7E..ds1dkpXm1.QJJp
./kX0LDD12..2..........wz................................2.u1....y1...sD...../..
.wHnAnYDBcPcKLgP7w9AwURM8f79zo2L7c5OFNnjRG2NHeymswXH9/tnFZl6z.g4GTQHnGkDpmJCe/Ej
WwHM0jqKri4Bz8pe.F5aLnmj......orz1..224.......sD/A....sD..E.....................
.............oAnAr1...sD....z./St5.gsZT.EZLy/.TSt5.YuZT.kgLy/.xSt5E/35UE/.......
.....orDZz1.......kz.Iqg0XEY.Q3......U0...EB....02...E0...E5....e....I1A...UiH5g
...TFqYKe/.Ak.1.4T6P.cF8A.A61c..p/sg..Eqtzb2aPyD/QReYxTY0.2............/8.kS4p0.
.YqulQA8Sz9.IXBzAbNvz...........UE13zjbFh...fjrwdvgqz0EOf5nlcsxj.gM3ZaYq1z962c..
p/sg..kuvBTuCfwj.gX7FmeMoz9..........oF68szdNJ0..ApKQUUTuz1.kRdIp0byz..kKTKW1q/k
/QV0z57ZL0..R8Zc4xRgz0.wQOr9PExD.ctwMy5pQ.A..QXAj..cU08.Um.k.1A.U08c.cL4q219..8c
U0UBf.Ak.1.cU08..Wn9fM0.U08c..eF.1Ak..8cU0.kE7H9d..cU08.Dx3k.1A.U08c.ATPdIG6..8c
U0EIx/Ak.1.cU08....cU08.zz/cU08.yz1cU08.xz3cU08.33qNgJ46iJaMplKMUAqPgJLPi/G9UkKM
E6..46....E.....4....A....UFjl4NdtqNUYYPo/0IjR5......................c..6.......
...................2./........zj..........2.....................................
................................................................................
.....................2.....3....C....6qPV75N7NoI..kI............................
.sU1....0MU/46.......cNaNaNaNavD........kznNaNaNaN4wz0..........................
..jN./..................................................kz1nAnAnAHtrzEnAnAnAnGxD
OaNaNaNaty1.....................}




* VacLife 640px.jpg (233.98 KB, 640x320 - viewed 367 times.)

* VacLife 4000px.jpg (156.35 KB, 640x320 - viewed 351 times.)
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Sockratease
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Posts: 3181



« Reply #1 on: March 09, 2012, 05:45:08 PM »

Look at the DE Stop in each formula.  It changes dramatically in the big version - it's a feature, not a bug.  Try Un-Checking the "DE Stop +C" check box below the image size display.

I'm not sure how that feature works, but there are times when it helps and times when it needs to be shut off.

Wish I could help explain when it is needed and when it isn't beyond just "uncheck it if it distorts things" - but I can't.

Hope that helps  o0
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lenord
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« Reply #2 on: March 09, 2012, 06:11:08 PM »

Does appear to be a keep DEstop+C  annomaly, not sure what's up because it's doing what it should in keeping it set in respect to Image size. Thing that puzzles me is Max Iterations for F1 is zero?
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MarkJayBee
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Markjaybee Fractal Mark_Jay_Bee
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« Reply #3 on: March 09, 2012, 07:23:44 PM »

Yup, changing the DEstop manually to 2 seems to be giving a more accurate reproduction
of the preview image now. A wee bit concerned about the DEstop+C not accurately calculating
the required DEstop though....
Don't know how the Max Iter for F1 got set to 0, but it certainly gives a nice smooth finish!  wink
Thanks guys!  A Beer Cup A Beer Cup
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lenord
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« Reply #4 on: March 09, 2012, 09:26:28 PM »

Yup, changing the DEstop manually to 2 seems to be giving a more accurate reproduction
of the preview image now. A wee bit concerned about the DEstop+C not accurately calculating
the required DEstop though....

Almost bet it is something to do with the FIP, had issues with DE stop tracking with FIP hybrids before, never that drastic though, that's a big difference....the Interstitial Phenominom  wink
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Jesse
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« Reply #5 on: March 10, 2012, 10:00:50 PM »

This is a special case, the x2 hybrid method was designed for a dIFS beeing in formula slot 1, not the opposite way.
So this is a bit experimental and i was not able to find all details to give the right answer, just take it as an unsupported feature  wink
Normally it should be maximum iteration limited and the DEstop should not have an effect below some values, everything strange but nice result!
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MindsEye
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« Reply #6 on: March 15, 2012, 07:17:20 PM »

Yup, changing the DEstop manually to 2 seems to be giving a more accurate reproduction
of the preview image now. A wee bit concerned about the DEstop+C not accurately calculating
the required DEstop though....
Don't know how the Max Iter for F1 got set to 0, but it certainly gives a nice smooth finish!  wink
Thanks guys!  A Beer Cup A Beer Cup

Now I am not the expert here in any way, but I am pretty certain that setting iteration to 0 turns the formula completely off, So I would imagine that emptying the formula completely would still provide you with the "smooth finish" you speak of (IE exactly the same as setting iter to 0). Nice piece tho mark.. as I commented when I faved it on DA : )
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