hello this is dawn from brain blinks
calm and we've got part 4 of the
mandible 3d tutorial and this time we're
talking about the lighting which makes
much more sense to me than the coloring
so that's nice it's pretty much a
standard kind of setup for 3d lighting
with a few options you have six
different lights represented by these
tabs up here they can all have their own
color all these settings are different
for each light let's go to some
grayscale
a little easier to see what's going on I
think so well your default light is
basically just one light on this is the
color of the light so if I make a hot
pink light here then we'll be casting
pink onto that gray this is the angle of
the light along the x and y axes as a
default this light is relative to your
camera so if I move around this fractal
with this light it's going to follow the
camera and change position as I change
position with the camera still with this
angle relative to the camera but if I
check this button then you can still
change the direction of light is coming
but it's now relative to the position of
the object or the center of the fractal
so when I move the camera the lights not
going to move around it's going to stay
where it's put
so those are nice forecasting
directional light evenly across the
whole object there's also an option for
positional lights which give you a lot
more control over where the light is
going to be and basically what I do
first of you get positional I go ahead
and hit this button to set the midpoint
for the light and then you click
somewhere on your image where you want
the light to be so let's say we want to
put a light right here or we can click
here and put it back inside this crevice
back in there's controls here for the
amount of light how about the bright the
light is
and position for all three X's the X's
on the light and don't forget these
aren't going to always line up with the
XY and depth in and out of the screen
because of the rotation of the camera
and the fractal so you usually just have
to play around with them but what I do
is just pick a spot put the light there
oops I missed maybe change the
brightness and then use these sliders to
position it more exactly where you want
to position it one things that help that
helps you know where the light is you
can turn and make it visible make the
light source visible you can see that
pink dot there and now if we move it as
we move we can see the source of the
light and that helps you position it as
well and those are our relative to the
object as well so that light would be
here on this 3d navigator I'm sure
you've noticed that the colors and the
lighting gonna always match into 3d
Navigator is what you're going to get in
the final view so just kind of have to
keep that in mind while you're working
on your image
still not used to that navigating by
clicking in the window I keep doing it
accidentally and I so now if we move
around this object you'll see that light
is stayed in the same position relative
to the fractal
so now let's say we wanted to add a
different another light but this one we
want it to be a directional light so
we'll turn it on set the color I'm going
to have it relative to the object as
well
and let's do a third light is a kind of
standard I think what they call a bounce
lighter I feel like kind of on the
opposite side of the first light
so you can see what six different lights
there's a lot of options for adding
color gradations your object or just
enhancing the variety and the subtle
shading in your scene but I've used
lights but with my images colored lights
to add color in specific places where I
want to sit you can't paint you can't
specifically paint a color with the
normal colors you can kind of paint some
color with the lights for instance there
I go again I clicked on the screen and
move my camera I got to stop doing that
start clicking the title bar instead
okay let's put that over to me and
calculate that
so let's say we wanted to move this pink
light now so we'll highlight the tab
that's on it hit the midpoint thing
thing so see here's a way that I can
make all of this area pink without
actually being able to control the
colors directly so it's a little
creative use of these positional lights
and the directional global lights you
can really control your colors a little
better so there's a quick rundown of the
lighting and next time I'm going to talk
about exploring the various formulas and
messing with presets and trying to
fine-tune the shapes along with these
options over here that lets you
fine-tune the rendering so I hope those
tips about lighting helped talk to you
next time