Reptillian
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Posts posted by Reptillian
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Description change request on Rainbowify:
QuoteConverts the average of RGB channel into Hue Range, and then add a gradient, and finally wrap it around to [0-1) range. This results in a image that has rainbow following the contour of the original image. Inspired by the Rainbowify effect by Jonathan Frech. G'MIC and CodeLab source provided.
I think the added "This results in a image that has rainbow following the contour of the original image. " make it easier for non-coders to comprehend. I get that coders can understand it well enough without the added description.
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Another change that will come in 3.1 is full-sized preview. This would make it possible to have accurate Hitomezashi and Mitchell Concatenation preview. I will look at other filters that need it.
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Thanks @null54, I managed to address that issue. It's unlikely these characters will be used. And the allowed convention for Premade Palette name is compatible with most OS except Mac OS 9 due to character count limit.
On Premade Palette, I have a question for users here. When 3.1 arrives and you are using Premade Palette, you will note this message: "96 Colors Restriction Exceeded! Disabled Export!" when a palette containing more than 96 colors is selected. Should this export block be disabled or should it be overridden by allowing split before export? There's also other palette format that doesn't show the message such as GIMP .gpl, and JASC_PAL.
This isn't something that's hard to address.
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9 hours ago, Ego Eram Reputo said:
There currently isn't a plugin that can do this
This is actually possible to code up in G'MIC. The easiest approach would be working with dynamic gui, and arrays. The most intuitive approach would be interactive version where you work with a window that contains the image, but that's just painful to do.
Will let the OP know when it's done.
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Thank you, @Ego Eram Reputo and @lynxster4.
Another update I have for now, and I know it's not much. I upgraded Premade Palette for when 3.1 comes. There has been some changes to workflow. In addition, you'll have the option to export palettes.
Note this when G'MIC 3.1 arrives, look at filename before export because Windows doesn't support certain characters. Regardless, most of them will export successfully. I should probably find a way to address that though.
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I wish knew how to do that. I learned about system.threading due to a example.
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42 minutes ago, otuncelli said:
It's not optimal but maybe slow down a little to keep GUI responsive? I don't know much about Paint.NET's effect engine.
It doesn't work, it seems. I guess, I will have to add a warning to my plugin thread about that issue.
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@otuncelli Sorry to ask, but I am finding that threading seem unstable. No remedy here? GUI locks up for a bit for large images, and I have to wait for it to finish after clicking ok.
Other than that, works.
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Popcorn Fractal has been updated! It is now multi-threaded all thanks to the help of @otuncelli. I will be applying the system.threading changes to my Thorn Fractal and also, I will be converting a few G'MIC-C# project to C#.
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@otuncelliI never knew of the system.threading thing. It absolutely run fast!
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Thanks, I have been able to get my code working now. The table idea actually slowed down the generation of Popcorn Fractal. I still want to know how to parallelize the code within PreRender though.
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I made the table version of it. There's a error about it being out of range.
Table is generated from this python code
Spoilerimport math length=50 precision=4 init_sin_table=[round(math.sin(x/length*2*math.pi),precision) for x in range(length)] init_cos_table=[round(math.cos(x/length*2*math.pi),precision) for x in range(length)] init_tan_table=[round(math.tan(x/length*2*math.pi),precision) for x in range(length)] init_atan_table=[round(math.atan(x/length*2*math.pi),precision) for x in range(length)] print(len(init_sin_table)) sin_table="double[] sin_table={"+",".join(map(str,init_sin_table))+"};" cos_table="double[] cos_table={"+",".join(map(str,init_cos_table))+"};" tan_table="double[] tan_table={"+",".join(map(str,init_tan_table))+"};" atan_table="double[] atan_table={"+",".join(map(str,init_atan_table))+"};" print(sin_table) print(cos_table) print(tan_table) print(atan_table)
C#
Spoiler// Name: Popcorn Fractal // Submenu: Render // Author: Reptorian // Title: Popcorn Fractal // Version: 1 // Desc: Render Popcorn Fractal into canvas. // Keywords: fractal // URL: https://forums.getpaint.net/profile/85868-reptillian/ // Help: #region UICode IntSliderControl pts = 25; // [1,100] Points DoubleSliderControl var_density = 1; // [0.01,2] Density DoubleSliderControl H = 0.05; // [-5,5] H DoubleSliderControl K = 3; // [-75,75] K DoubleSliderControl var_zoom = 1; // [0.1,4] Zoom AngleControl var_ang = 0; // [-180,180] Angle PanSliderControl Origin = Pair.Create(0.000, 0.000); // Origin ListBoxControl TrigMode = 0; // Trig Mode|Trig-4|Trig-6 ListBoxControl func_x1 = 0; // X-S|Sinusoidal|Cosinusoidal|Tangent|Arc-Tangent ListBoxControl func_x2 = 2; // X-T|Sinusoidal|Cosinusoidal|Tangent|Arc-Tangent ListBoxControl func_x3 = 1; // {!TrigMode} X-U|Sinusoidal|Cosinusoidal|Tangent|Arc-Tangent ListBoxControl func_y1 = 0; // Y-S|Sinusoidal|Cosinusoidal|Tangent|Arc-Tangent ListBoxControl func_y2 = 2; // Y-T|Sinusoidal|Cosinusoidal|Tangent|Arc-Tangent ListBoxControl func_y3 = 1; // {!TrigMode} Y-U|Sinusoidal|Cosinusoidal|Tangent|Arc-Tangent DoubleSliderControl var_midpoint_shift = 0; // [-1,1] Midpoint Shift DoubleSliderControl multiplier = 1; // [0.01,10] {!norm} Multiplier CheckboxControl norm = false; // Normalize #endregion #if DEBUG #endif double length=50; double[] sin_table={0.0,0.1253,0.2487,0.3681,0.4818,0.5878,0.6845,0.7705,0.8443,0.9048,0.9511,0.9823,0.998,0.998,0.9823,0.9511,0.9048,0.8443,0.7705,0.6845,0.5878,0.4818,0.3681,0.2487,0.1253,0.0,-0.1253,-0.2487,-0.3681,-0.4818,-0.5878,-0.6845,-0.7705,-0.8443,-0.9048,-0.9511,-0.9823,-0.998,-0.998,-0.9823,-0.9511,-0.9048,-0.8443,-0.7705,-0.6845,-0.5878,-0.4818,-0.3681,-0.2487,-0.1253}; double[] cos_table={1.0,0.9921,0.9686,0.9298,0.8763,0.809,0.729,0.6374,0.5358,0.4258,0.309,0.1874,0.0628,-0.0628,-0.1874,-0.309,-0.4258,-0.5358,-0.6374,-0.729,-0.809,-0.8763,-0.9298,-0.9686,-0.9921,-1.0,-0.9921,-0.9686,-0.9298,-0.8763,-0.809,-0.729,-0.6374,-0.5358,-0.4258,-0.309,-0.1874,-0.0628,0.0628,0.1874,0.309,0.4258,0.5358,0.6374,0.729,0.809,0.8763,0.9298,0.9686,0.9921}; double[] tan_table={0.0,0.1263,0.2568,0.3959,0.5498,0.7265,0.9391,1.2088,1.5757,2.1251,3.0777,5.2422,15.8945,-15.8945,-5.2422,-3.0777,-2.1251,-1.5757,-1.2088,-0.9391,-0.7265,-0.5498,-0.3959,-0.2568,-0.1263,-0.0,0.1263,0.2568,0.3959,0.5498,0.7265,0.9391,1.2088,1.5757,2.1251,3.0777,5.2422,15.8945,-15.8945,-5.2422,-3.0777,-2.1251,-1.5757,-1.2088,-0.9391,-0.7265,-0.5498,-0.3959,-0.2568,-0.1263}; double rot_x(double a, double b, double cos_ang,double sin_ang){ return a * cos_ang - b * sin_ang; } double rot_y(double a, double b, double cos_ang,double sin_ang){ return a * sin_ang + b * cos_ang; } double rescale_factor=2*Math.PI/50; double table_sin(double v){ int index=(int)(v/rescale_factor); return sin_table[index%50]; } double table_cos(double v){ int index=(int)(v/rescale_factor); return cos_table[index%50]; } double table_tan(double v){ int index=(int)(v/rescale_factor); return tan_table[index%50]; } double func_v(double v,int c){ switch(c){ case 0: return table_sin(v); case 1: return Math.Cos(v); case 2: return Math.Tan(v); case 3: return Math.Atan(v); } return Math.Atan(v); } int maxnum; int [,] Popcorn_Array; void PreRender(Surface dst, Surface src) { int w = src.Width; int h = src.Height; bool sd_cond = w>h; double dw = (double)(w); double dh = (double)(h); if (Popcorn_Array == null){Popcorn_Array = new int [w,h];} else {Array.Clear(Popcorn_Array, 0, w*h);} bool use_trig6 = TrigMode == 1; double density = 1 / var_density; double zoom = 1 / var_zoom; double ang = (var_ang/180) * Math.PI; double origin_x = Origin.First * -1 * zoom; double origin_y = Origin.Second * zoom; double sd = Math.Max(dw,dh) / Math.Min(dw,dh); double sx = sd_cond ? sd : 1 ; double sy = sd_cond ? 1 : sd ; double cx = dw / 2; double cy = dh / 2; double osx = origin_x * sx ; double osy = origin_y * sy ; double cx_zoom = cx / zoom; double cy_zoom = cy / zoom; double cxsx = cx * sx; double cysy = cy * sy; double cos_ang = Math.Cos(ang); double sin_ang = Math.Sin(ang); bool angcondition = (var_ang - 360*Math.Floor(var_ang/360))>0; double xx,yy,xnew,ynew,xval,yval; int xpos,ypos; var timer = new Stopwatch(); timer.Start(); for (double ix=0 ; ix < dw ; ix+=density) { if (IsCancelRequested) return; for (double iy=0 ; iy < dh ; iy+=density) { xx = zoom * (ix-cx) / cx; yy = zoom * (iy-cy) / cy; xx*=sx; yy*=sy; xx+=origin_x; yy+=origin_y; for (int ptn=0 ; ptn < pts ; ptn++) { if (use_trig6) { xnew = xx-H*func_v(yy+func_v(K*yy+func_v(K*yy,func_x3),func_x2),func_x1); ynew = yy-H*func_v(xx+func_v(K*xx+func_v(K*xx,func_y3),func_y2),func_y1); } else { xnew = xx-H*func_v(yy+func_v(K*yy,func_x2),func_x1); ynew = yy-H*func_v(xx+func_v(K*xx,func_y2),func_y1); } if (angcondition){ xval = ((rot_x(xnew,ynew,cos_ang,sin_ang) - osx)*cx_zoom + cxsx)/sx; yval = ((rot_y(xnew,ynew,cos_ang,sin_ang) - osy)*cy_zoom + cysy)/sy; } else{ xval = ((xnew - osx)*cx_zoom+cxsx)/sx; yval = ((ynew - osy)*cy_zoom+cysy)/sy; } xpos = (int)(Math.Round(xval)); ypos = (int)(Math.Round(yval)); if ((xpos>=0&&ypos>=0)&&(xpos<w&&ypos<h)){ Popcorn_Array[xpos,ypos]++; if (Popcorn_Array[xpos,ypos]>maxnum) { maxnum = Popcorn_Array[xpos,ypos]; } } xx = xnew; yy = ynew; } } } timer.Stop(); Debug.WriteLine(timer.Elapsed); } void Render(Surface dst, Surface src, Rectangle rect) { double midpoint = 1 - Math.Abs(var_midpoint_shift); bool cond_midpoint = var_midpoint_shift>=0; double pval; int val; for (int y = rect.Top; y < rect.Bottom; y++) { for (int x = rect.Left; x < rect.Right; x++) { pval = (double)(Popcorn_Array[x,y])/(double)(maxnum); if (cond_midpoint){pval=Math.Pow(pval,midpoint);} else {pval=1-(Math.Pow(1-pval,midpoint));} if(norm){pval*=255;} else {pval*=(double)(maxnum)*multiplier;} val=(int)(pval); dst[x,y]=ColorBgra.FromBgraClamped(val,val,val,255); } } }
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6 hours ago, NinthDesertDude said:
Thoughts for speed...
1. Parallelize the for loops in your pre-render if you can. It's worth tracking two copies of xx/yy and each intermediate variable you defined outside the for-loops, if that's necessary to make it work. Speed will definitely improve if it's at all possible.
This is something I'm interested into doing. How to parallelize it. It's not possible to put it in render.
On 2. That might take some time to be doing. Doable, but takes a bit of time. I doubt that they do affect performance that much. My test with dummy code shows it is at least 2 times faster. Half as fast as the multi-threaded version coded in G'MIC. I will see if the table suggestion works.
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I can confirm:
C:\Program Files\paint.net\Effects\WhatIsIt.Effect.dll, version 0.1.0.111 Name: WhatIsIt.Effect Type: Effects.WhatIsItEffect Version: 0.1.0.111 Author: Martin Osieka Copyright: © 2015, ComSquare AG, Switzerland Website: http://forums.comsquare.ch/viewforum.php?title=Paint.NET Tools This plugin is incompatible with this version of paint.net.
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A long time ago, @MJWsuggested I should use delegate for Popcorn Fractal. I had done that, but however it is slower than non-lambda delegate version. It was supposed to be faster.
Here's the two codes with StopWatch and Debug built-in. The A is the non-lambda delegate version, and the B is the lambda delegate version. B is newer than A.
Popcorn Fractal A
Spoiler// Name: Popcorn Fractal // Submenu: Render // Author: Reptorian // Title: Popcorn Fractal // Version: 1 // Desc: Render Popcorn Fractal into canvas. // Keywords: fractal // URL: https://forums.getpaint.net/profile/85868-reptillian/ // Help: #region UICode IntSliderControl pts = 25; // [1,100] Points DoubleSliderControl var_density = 1; // [0.01,2] Density DoubleSliderControl H = 0.05; // [-5,5] H DoubleSliderControl K = 3; // [-75,75] K DoubleSliderControl var_zoom = 1; // [0.1,4] Zoom AngleControl var_ang = 0; // [-180,180] Angle PanSliderControl Origin = Pair.Create(0.000, 0.000); // Origin ListBoxControl TrigMode = 0; // Trig Mode|Trig-4|Trig-6 ListBoxControl func_x1 = 0; // X-S|Sinusoidal|Cosinusoidal|Tangent|Arc-Tangent ListBoxControl func_x2 = 2; // X-T|Sinusoidal|Cosinusoidal|Tangent|Arc-Tangent ListBoxControl func_x3 = 1; // {!TrigMode} X-U|Sinusoidal|Cosinusoidal|Tangent|Arc-Tangent ListBoxControl func_y1 = 0; // Y-S|Sinusoidal|Cosinusoidal|Tangent|Arc-Tangent ListBoxControl func_y2 = 2; // Y-T|Sinusoidal|Cosinusoidal|Tangent|Arc-Tangent ListBoxControl func_y3 = 1; // {!TrigMode} Y-U|Sinusoidal|Cosinusoidal|Tangent|Arc-Tangent DoubleSliderControl var_midpoint_shift = 0; // [-1,1] Midpoint Shift DoubleSliderControl multiplier = 1; // [0.01,10] {!norm} Multiplier CheckboxControl norm = false; // Normalize #endregion #if DEBUG #endif double rot_x(double a, double b, double cos_ang,double sin_ang){ return a * cos_ang - b * sin_ang; } double rot_y(double a, double b, double cos_ang,double sin_ang){ return a * sin_ang + b * cos_ang; } double func_v(double v,int c){ switch(c){ case 0: return Math.Sin(v); case 1: return Math.Cos(v); case 2: return Math.Tan(v); case 3: return Math.Atan(v); } return Math.Atan(v); } int maxnum; int [,] Popcorn_Array; void PreRender(Surface dst, Surface src) { int w = src.Width; int h = src.Height; bool sd_cond = w>h; double dw = (double)(w); double dh = (double)(h); if (Popcorn_Array == null){Popcorn_Array = new int [w,h];} else {Array.Clear(Popcorn_Array, 0, w*h);} bool use_trig6 = TrigMode == 1; double density = 1 / var_density; double zoom = 1 / var_zoom; double ang = (var_ang/180) * Math.PI; double origin_x = Origin.First * -1 * zoom; double origin_y = Origin.Second * zoom; double sd = Math.Max(dw,dh) / Math.Min(dw,dh); double sx = sd_cond ? sd : 1 ; double sy = sd_cond ? 1 : sd ; double cx = dw / 2; double cy = dh / 2; double osx = origin_x * sx ; double osy = origin_y * sy ; double cx_zoom = cx / zoom; double cy_zoom = cy / zoom; double cxsx = cx * sx; double cysy = cy * sy; double cos_ang = Math.Cos(ang); double sin_ang = Math.Sin(ang); bool angcondition = (var_ang - 360*Math.Floor(var_ang/360))>0; double xx,yy,xnew,ynew,xval,yval; int xpos,ypos; var timer = new Stopwatch(); timer.Start(); for (double ix=0 ; ix < dw ; ix+=density) { if (IsCancelRequested) return; for (double iy=0 ; iy < dh ; iy+=density) { xx = zoom * (ix-cx) / cx; yy = zoom * (iy-cy) / cy; xx*=sx; yy*=sy; xx+=origin_x; yy+=origin_y; for (int ptn=0 ; ptn < pts ; ptn++) { if (use_trig6) { xnew = xx-H*func_v(yy+func_v(K*yy+func_v(K*yy,func_x3),func_x2),func_x1); ynew = yy-H*func_v(xx+func_v(K*xx+func_v(K*xx,func_y3),func_y2),func_y1); } else { xnew = xx-H*func_v(yy+func_v(K*yy,func_x2),func_x1); ynew = yy-H*func_v(xx+func_v(K*xx,func_y2),func_y1); } if (angcondition){ xval = ((rot_x(xnew,ynew,cos_ang,sin_ang) - osx)*cx_zoom + cxsx)/sx; yval = ((rot_y(xnew,ynew,cos_ang,sin_ang) - osy)*cy_zoom + cysy)/sy; } else{ xval = ((xnew - osx)*cx_zoom+cxsx)/sx; yval = ((ynew - osy)*cy_zoom+cysy)/sy; } xpos = (int)(Math.Round(xval)); ypos = (int)(Math.Round(yval)); if ((xpos>=0&&ypos>=0)&&(xpos<w&&ypos<h)){ Popcorn_Array[xpos,ypos]++; if (Popcorn_Array[xpos,ypos]>maxnum) { maxnum = Popcorn_Array[xpos,ypos]; } } xx = xnew; yy = ynew; } } } timer.Stop(); Debug.WriteLine(timer.Elapsed); } void Render(Surface dst, Surface src, Rectangle rect) { double midpoint = 1 - Math.Abs(var_midpoint_shift); bool cond_midpoint = var_midpoint_shift>=0; double pval; int val; for (int y = rect.Top; y < rect.Bottom; y++) { for (int x = rect.Left; x < rect.Right; x++) { pval = (double)(Popcorn_Array[x,y])/(double)(maxnum); if (cond_midpoint){pval=Math.Pow(pval,midpoint);} else {pval=1-(Math.Pow(1-pval,midpoint));} if(norm){pval*=255;} else {pval*=(double)(maxnum)*multiplier;} val=(int)(pval); dst[x,y]=ColorBgra.FromBgraClamped(val,val,val,255); } } }
Popcorn Fractal B
Spoiler// Name: Popcorn Fractal // Submenu: Render // Author: Reptorian // Title: Popcorn Fractal // Version: 1 // Desc: Render Popcorn Fractal into canvas. // Keywords: fractal // URL: https://forums.getpaint.net/profile/85868-reptillian/ // Help: #region UICode IntSliderControl pts = 25; // [1,100] Points DoubleSliderControl var_density = 1; // [0.01,2] Density DoubleSliderControl H = 0.05; // [-5,5] H DoubleSliderControl K = 3; // [-75,75] K DoubleSliderControl var_zoom = 1; // [0.1,4] Zoom AngleControl var_ang = 0; // [-180,180] Angle PanSliderControl Origin = Pair.Create(0.000, 0.000); // Origin ListBoxControl TrigMode = 0; // Trig Mode|Trig-4|Trig-6 ListBoxControl func_x1 = 0; // X-S|Sinusoidal|Cosinusoidal|Tangent|Arc-Tangent ListBoxControl func_x2 = 2; // X-T|Sinusoidal|Cosinusoidal|Tangent|Arc-Tangent ListBoxControl func_x3 = 1; // {!TrigMode} X-U|Sinusoidal|Cosinusoidal|Tangent|Arc-Tangent ListBoxControl func_y1 = 0; // Y-S|Sinusoidal|Cosinusoidal|Tangent|Arc-Tangent ListBoxControl func_y2 = 2; // Y-T|Sinusoidal|Cosinusoidal|Tangent|Arc-Tangent ListBoxControl func_y3 = 1; // {!TrigMode} Y-U|Sinusoidal|Cosinusoidal|Tangent|Arc-Tangent DoubleSliderControl var_midpoint_shift = 0; // [-1,1] Midpoint Shift DoubleSliderControl multiplier = 1; // [0.01,10] {!norm} Multiplier CheckboxControl norm = false; // Normalize #endregion #if DEBUG #endif double rot_x(double a, double b, double cos_ang,double sin_ang){ return a * cos_ang - b * sin_ang; } double rot_y(double a, double b, double cos_ang,double sin_ang){ return a * sin_ang + b * cos_ang; } int maxnum; int [,] Popcorn_Array; void PreRender(Surface dst, Surface src) { int w = src.Width; int h = src.Height; bool sd_cond = w>h; double dw = (double)(w); double dh = (double)(h); if (Popcorn_Array == null){Popcorn_Array = new int [w,h];} else {Array.Clear(Popcorn_Array, 0, w*h);} bool use_trig6 = TrigMode == 1; double density = 1 / var_density; double zoom = 1 / var_zoom; double ang = (var_ang/180) * Math.PI; double origin_x = Origin.First * -1 * zoom; double origin_y = Origin.Second * -1 * zoom; double sd = Math.Max(dw,dh) / Math.Min(dw,dh); double sx = sd_cond ? sd : 1 ; double sy = sd_cond ? 1 : sd ; double cx = dw / 2; double cy = dh / 2; double osx = origin_x * sx ; double osy = origin_y * sy ; double cx_zoom = cx / zoom; double cy_zoom = cy / zoom; double cxsx = cx * sx; double cysy = cy * sy; double cos_ang = Math.Cos(ang); double sin_ang = Math.Sin(ang); bool angcondition = (var_ang - 360*Math.Floor(var_ang/360))>0; double xx,yy,xnew,ynew,xval,yval; int xpos,ypos; Func<double,double,double> eval_x; Func<double,double,double> eval_y; Func<double,double> fun_x0 = v => 0; Func<double,double> fun_x1 = v => 0; Func<double,double> fun_y0 = v => 0; Func<double,double> fun_y1 = v => 0; Func<double,double,double> popcorn_x; Func<double,double,double> popcorn_y; switch(func_x1){ case 0: fun_x0 = v => Math.Sin(v); break; case 1: fun_x0 = v => Math.Cos(v); break; case 2: fun_x0 = v => Math.Tan(v); break; case 3: fun_x0 = v => Math.Atan(v); break; } switch(func_x2){ case 0: fun_x1 = v => Math.Sin(v); break; case 1: fun_x1 = v => Math.Cos(v); break; case 2: fun_x1 = v => Math.Tan(v); break; case 3: fun_x1 = v => Math.Atan(v); break; } switch(func_y1){ case 0: fun_y0 = v => Math.Sin(v); break; case 1: fun_y0 = v => Math.Cos(v); break; case 2: fun_y0 = v => Math.Tan(v); break; case 3: fun_y0 = v => Math.Atan(v); break; } switch(func_y2){ case 0: fun_y1 = v => Math.Sin(v); break; case 1: fun_y1 = v => Math.Cos(v); break; case 2: fun_y1 = v => Math.Tan(v); break; case 3: fun_y1 = v => Math.Atan(v); break; } if (use_trig6){ Func<double,double> fun_x2 = v => 0; Func<double,double> fun_y2 = v => 0; switch(func_x3){ case 0: fun_x2 = v => Math.Sin(v); break; case 1: fun_x2 = v => Math.Cos(v); break; case 2: fun_x2 = v => Math.Tan(v); break; case 3: fun_x2 = v => Math.Atan(v); break; } switch(func_y3){ case 0: fun_y2 = v => Math.Sin(v); break; case 1: fun_y2 = v => Math.Cos(v); break; case 2: fun_y2 = v => Math.Tan(v); break; case 3: fun_y2 = v => Math.Atan(v); break; } popcorn_x = (a,b) => a - H * fun_x0(b+fun_x1(K*b + fun_x2(K*b))); popcorn_y = (a,b) => b - H * fun_y0(a+fun_y1(K*a + fun_y2(K*a))); } else { popcorn_x = (a,b) => a - H * fun_x0(b + fun_x1(K * b)); popcorn_y = (a,b) => b - H * fun_y0(a + fun_y1(K * a)); } if (angcondition){ eval_x = ( x,y ) => ((rot_x(x,y,cos_ang,sin_ang) - osx)*cx_zoom + cxsx)/sx; eval_y = ( x,y ) => ((rot_y(x,y,cos_ang,sin_ang) - osy)*cy_zoom + cysy)/sy; } else{ eval_x = ( x,y ) => ((x - osx)*cx_zoom+cxsx)/sx; eval_y = ( x,y ) => ((y - osy)*cy_zoom+cysy)/sy; } var timer = new Stopwatch(); timer.Start(); for (double ix=0 ; ix < dw ; ix+=density) { if (IsCancelRequested) return; for (double iy=0 ; iy < dh ; iy+=density) { xx = zoom * (ix-cx) / cx; yy = zoom * (iy-cy) / cy; xx*=sx; yy*=sy; xx+=origin_x; yy+=origin_y; for (int ptn=0 ; ptn < pts ; ptn++) { xnew = popcorn_x(xx,yy); ynew = popcorn_y(xx,yy); xval = eval_x(xnew,ynew); yval = eval_y(xnew,ynew); xpos = (int)(Math.Round(xval)); ypos = (int)(Math.Round(yval)); if ((xpos>=0&&ypos>=0)&&(xpos<w&&ypos<h)){ Popcorn_Array[xpos,ypos]++; if (Popcorn_Array[xpos,ypos]>maxnum) { maxnum = Popcorn_Array[xpos,ypos]; } } xx = xnew; yy = ynew; } } } timer.Stop(); Debug.WriteLine(timer.Elapsed); } void Render(Surface dst, Surface src, Rectangle rect) { double midpoint = 1 - Math.Abs(var_midpoint_shift); bool cond_midpoint = var_midpoint_shift>=0; double pval; int val; for (int y = rect.Top; y < rect.Bottom; y++) { for (int x = rect.Left; x < rect.Right; x++) { pval = (double)(Popcorn_Array[x,y])/(double)(maxnum); if (cond_midpoint){pval=Math.Pow(pval,midpoint);} else {pval=1-(Math.Pow(1-pval,midpoint));} if(norm){pval*=255;} else {pval*=(double)(maxnum)*multiplier;} val=(int)(pval); dst[x,y]=ColorBgra.FromBgraClamped(val,val,val,255); } } }
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I will be updating the Popcorn Fractal soon.
I think I have a idea of what to do with Lambda delegate, but don't know how to return expression from a Func Function yet.Found my solution.-
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G'MIC 3.1 is about to be released. Serendipitous Circle will be available. There is also an upgrade to Popcorn Fractal [Transformative].
Here's the upgrade output:
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33 minutes ago, HyReZ said:
Search for the Windows Charaater Map app (bulit into every version of Windows), then scroll thru the map to locate and select your characters into the Select box.
Next click 'copy' to place your selections onto the Clipboard and paste into Paint.NET (or an other app the use text).
You can also use WinCompose.
Here's some examples with Umlaut.
äÄëËöÖ.
It is better than Windows Character Map.
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9 minutes ago, memark said:
Thanks, I guess i have asked the wrong question. I can not get the proper function or key stroke to get these umlauts to type out.
There are tools for that. I forgot the name for this, but it's when you type in a key, and then type in combination of keys, finally, the character shows up.
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31 minutes ago, MJW said:
In answer to that question: No, the "gravity" is always directional.
I think the person is asking for a new feature. This is actually feasible.
There is something I have made that makes this much more feasible -> https://discuss.pixls.us/t/rectangular-polar-transformation-sequel-thread/22724 .
The above is about transforming a image which can be combined with Gravity to do this. I also have a G'MIC that does this with the aforementioned technique.
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So, just to be clear, you want to increment using last layer, or swapping layers to use as increment, or use flattened copy?
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ImageMagick / G'MIC would be better as they support batch processing.
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4 minutes ago, Ego Eram Reputo said:
(link in my signature).
Just to point out this even though you already know, I don't see signature on my phone.
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11 hours ago, Ego Eram Reputo said:
There isn't a plugin which will do this. That's not to say there won't be, just not right now.
There might be something in a set of G'MIC script someone left in the cartographer forum. Those can actually be easily translated to C# plugin. I would have to finish those as they are not coded acceptably. Then, when I finish them, someone who wants them in a C# plugin can ask me for pointers.
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That's much more coherent. That will work.