What is the difference between settings.render=10 and settings.render=15 in the following examples?
Both examples in ASY_3D.pdf
documentclass[border=5pt,varwidth]{standalone}
usepackage{asymptote}
begin{document}
begin{asy}
settings.outformat="png";
// settings.render=10; //<<<----
settings.prc=false;
import graph3;
import contour;
size(7.5cm,0);
size3(7.5cm,IgnoreAspect);
currentprojection=orthographic(-6,-20,600);
currentlight=White;
limits((0,0,0),(10,10,300));
xaxis3(OutTicks(Step=2));
yaxis3(OutTicks(Step=5));
zaxis3(Bounds(Min,Max),InTicks(Step=100,Label(align=-X),NoZero));
real f(pair z) {return 2z.x^2-z.x+z.y^2;}
draw(surface(f,(0,0),(10,10),nx=10,Spline),lightgray,meshpen=black);
path p1=(5,1)--(9,1)--(9,4)--(5,4)--cycle,
p2=(4,0)--(0,8),
p3;
for(int i=0; i<=10;++i) p3=p3..point(p2,i/10);
guide tabgui={{p1,p2,p3}};
draw(lift(f,tabgui),1bp+red);
draw(path3(p1),1bp+.8green);
draw(path3(p2),1bp+.8purple);
draw(extrude(p1,axis=200Z),blue+opacity(.75));
end{asy}
end{document}
With settings.render=10; it produces a figure about 500KB

But with settings.render=15; it produces a figure about 894KB

See the following example:
documentclass[border=5pt,varwidth]{standalone}
usepackage{asymptote}
begin{document}
begin{asy}
settings.outformat="png";
settings.render=15;
settings.prc=false;
import graph3;
currentprojection=orthographic(1,-2,1);
currentlight=(1,-1,0.5);
size(7cm,0);
real f(pair z) {return abs(z)^2;}
path3 gradient(pair z) {
static real dx=sqrtEpsilon, dy=dx;
return O--((f(z+dx)-f(z-dx))/2dx,
(f(z+I*dy)-f(z-I*dy))/2dy,0);}
pair a=(-1,-1);
pair b=(1,1);
triple F(pair z) {return (z.x,z.y,0);}
add(vectorfield(gradient,F,a,b,red));
draw(surface(f,a,b,Spline),gray+opacity(0.5));
xaxis3(XY()*"$x$",OutTicks(XY()*Label));
yaxis3(XY()*"$y$",InTicks(YX()*Label));
zaxis3("$z$",OutTicks);
end{asy}
end{document}
With settings.render=15; it produces a figure about 646KB

With settings.render=10; it produces a figure about 307KB

Can you explain to me the reason of this case?
asymptote
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Both examples in ASY_3D.pdf
documentclass[border=5pt,varwidth]{standalone}
usepackage{asymptote}
begin{document}
begin{asy}
settings.outformat="png";
// settings.render=10; //<<<----
settings.prc=false;
import graph3;
import contour;
size(7.5cm,0);
size3(7.5cm,IgnoreAspect);
currentprojection=orthographic(-6,-20,600);
currentlight=White;
limits((0,0,0),(10,10,300));
xaxis3(OutTicks(Step=2));
yaxis3(OutTicks(Step=5));
zaxis3(Bounds(Min,Max),InTicks(Step=100,Label(align=-X),NoZero));
real f(pair z) {return 2z.x^2-z.x+z.y^2;}
draw(surface(f,(0,0),(10,10),nx=10,Spline),lightgray,meshpen=black);
path p1=(5,1)--(9,1)--(9,4)--(5,4)--cycle,
p2=(4,0)--(0,8),
p3;
for(int i=0; i<=10;++i) p3=p3..point(p2,i/10);
guide tabgui={{p1,p2,p3}};
draw(lift(f,tabgui),1bp+red);
draw(path3(p1),1bp+.8green);
draw(path3(p2),1bp+.8purple);
draw(extrude(p1,axis=200Z),blue+opacity(.75));
end{asy}
end{document}
With settings.render=10; it produces a figure about 500KB

But with settings.render=15; it produces a figure about 894KB

See the following example:
documentclass[border=5pt,varwidth]{standalone}
usepackage{asymptote}
begin{document}
begin{asy}
settings.outformat="png";
settings.render=15;
settings.prc=false;
import graph3;
currentprojection=orthographic(1,-2,1);
currentlight=(1,-1,0.5);
size(7cm,0);
real f(pair z) {return abs(z)^2;}
path3 gradient(pair z) {
static real dx=sqrtEpsilon, dy=dx;
return O--((f(z+dx)-f(z-dx))/2dx,
(f(z+I*dy)-f(z-I*dy))/2dy,0);}
pair a=(-1,-1);
pair b=(1,1);
triple F(pair z) {return (z.x,z.y,0);}
add(vectorfield(gradient,F,a,b,red));
draw(surface(f,a,b,Spline),gray+opacity(0.5));
xaxis3(XY()*"$x$",OutTicks(XY()*Label));
yaxis3(XY()*"$y$",InTicks(YX()*Label));
zaxis3("$z$",OutTicks);
end{asy}
end{document}
With settings.render=15; it produces a figure about 646KB

With settings.render=10; it produces a figure about 307KB

Can you explain to me the reason of this case?
asymptote
New contributor
New user is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
Both examples in ASY_3D.pdf
documentclass[border=5pt,varwidth]{standalone}
usepackage{asymptote}
begin{document}
begin{asy}
settings.outformat="png";
// settings.render=10; //<<<----
settings.prc=false;
import graph3;
import contour;
size(7.5cm,0);
size3(7.5cm,IgnoreAspect);
currentprojection=orthographic(-6,-20,600);
currentlight=White;
limits((0,0,0),(10,10,300));
xaxis3(OutTicks(Step=2));
yaxis3(OutTicks(Step=5));
zaxis3(Bounds(Min,Max),InTicks(Step=100,Label(align=-X),NoZero));
real f(pair z) {return 2z.x^2-z.x+z.y^2;}
draw(surface(f,(0,0),(10,10),nx=10,Spline),lightgray,meshpen=black);
path p1=(5,1)--(9,1)--(9,4)--(5,4)--cycle,
p2=(4,0)--(0,8),
p3;
for(int i=0; i<=10;++i) p3=p3..point(p2,i/10);
guide tabgui={{p1,p2,p3}};
draw(lift(f,tabgui),1bp+red);
draw(path3(p1),1bp+.8green);
draw(path3(p2),1bp+.8purple);
draw(extrude(p1,axis=200Z),blue+opacity(.75));
end{asy}
end{document}
With settings.render=10; it produces a figure about 500KB

But with settings.render=15; it produces a figure about 894KB

See the following example:
documentclass[border=5pt,varwidth]{standalone}
usepackage{asymptote}
begin{document}
begin{asy}
settings.outformat="png";
settings.render=15;
settings.prc=false;
import graph3;
currentprojection=orthographic(1,-2,1);
currentlight=(1,-1,0.5);
size(7cm,0);
real f(pair z) {return abs(z)^2;}
path3 gradient(pair z) {
static real dx=sqrtEpsilon, dy=dx;
return O--((f(z+dx)-f(z-dx))/2dx,
(f(z+I*dy)-f(z-I*dy))/2dy,0);}
pair a=(-1,-1);
pair b=(1,1);
triple F(pair z) {return (z.x,z.y,0);}
add(vectorfield(gradient,F,a,b,red));
draw(surface(f,a,b,Spline),gray+opacity(0.5));
xaxis3(XY()*"$x$",OutTicks(XY()*Label));
yaxis3(XY()*"$y$",InTicks(YX()*Label));
zaxis3("$z$",OutTicks);
end{asy}
end{document}
With settings.render=15; it produces a figure about 646KB

With settings.render=10; it produces a figure about 307KB

Can you explain to me the reason of this case?
asymptote
New contributor
New user is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Both examples in ASY_3D.pdf
documentclass[border=5pt,varwidth]{standalone}
usepackage{asymptote}
begin{document}
begin{asy}
settings.outformat="png";
// settings.render=10; //<<<----
settings.prc=false;
import graph3;
import contour;
size(7.5cm,0);
size3(7.5cm,IgnoreAspect);
currentprojection=orthographic(-6,-20,600);
currentlight=White;
limits((0,0,0),(10,10,300));
xaxis3(OutTicks(Step=2));
yaxis3(OutTicks(Step=5));
zaxis3(Bounds(Min,Max),InTicks(Step=100,Label(align=-X),NoZero));
real f(pair z) {return 2z.x^2-z.x+z.y^2;}
draw(surface(f,(0,0),(10,10),nx=10,Spline),lightgray,meshpen=black);
path p1=(5,1)--(9,1)--(9,4)--(5,4)--cycle,
p2=(4,0)--(0,8),
p3;
for(int i=0; i<=10;++i) p3=p3..point(p2,i/10);
guide tabgui={{p1,p2,p3}};
draw(lift(f,tabgui),1bp+red);
draw(path3(p1),1bp+.8green);
draw(path3(p2),1bp+.8purple);
draw(extrude(p1,axis=200Z),blue+opacity(.75));
end{asy}
end{document}
With settings.render=10; it produces a figure about 500KB

But with settings.render=15; it produces a figure about 894KB

See the following example:
documentclass[border=5pt,varwidth]{standalone}
usepackage{asymptote}
begin{document}
begin{asy}
settings.outformat="png";
settings.render=15;
settings.prc=false;
import graph3;
currentprojection=orthographic(1,-2,1);
currentlight=(1,-1,0.5);
size(7cm,0);
real f(pair z) {return abs(z)^2;}
path3 gradient(pair z) {
static real dx=sqrtEpsilon, dy=dx;
return O--((f(z+dx)-f(z-dx))/2dx,
(f(z+I*dy)-f(z-I*dy))/2dy,0);}
pair a=(-1,-1);
pair b=(1,1);
triple F(pair z) {return (z.x,z.y,0);}
add(vectorfield(gradient,F,a,b,red));
draw(surface(f,a,b,Spline),gray+opacity(0.5));
xaxis3(XY()*"$x$",OutTicks(XY()*Label));
yaxis3(XY()*"$y$",InTicks(YX()*Label));
zaxis3("$z$",OutTicks);
end{asy}
end{document}
With settings.render=15; it produces a figure about 646KB

With settings.render=10; it produces a figure about 307KB

Can you explain to me the reason of this case?
asymptote
asymptote
New contributor
New user is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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