V-Ray Tutorial: Learn Vray HDRI Lighting For Arch Viz Interior

V-Ray Tutorial: Learn Vray HDRI Lighting For Arch Viz Interior

Now, we’re using this v-ray dome light,
well really it’s just a v-ray light set to dome with an hdri in it to do the
basic lighting of our scene so all you do to create this is to go to light>V-Ray,
V-Ray light put a random light out here and then set it to dome and it does that it doesn’t really
matter where you’ve placed it or anything like that because it’s a dome
that will encompass your scene once you have your dome created you can modify it
to be what you want and the essential part is this texture here which you just
put a v-ray HDR high texture and I’ll have a look at that in a second
multiplier is set to one let’s look at some of the other options here just to
see what they are spherical full dome that’s great that means it has a ground
and a sky effect alpha can be turned on and off so that when you render it will
either show as an alpha so you can replace the background or it will not
depending on how you have that set and you’ll want it to and then it has the
settings of a basic light so you can turn on invisible if you wanted the
light to emit light for your scene but not be shown as your background you
would make it invisible okay but we want it basically just default and all we
need to do is replace this texture here so that it’s actually using an image to
emit light and if you don’t know what an HDR eye light is well a dome light is
just a light that encompasses your scene but when it really starts to work is not
as a solid color but as a high definition range image which has enough
depth in it that it can actually provide light information for your scene and
I’ll show you what that means the way you would set this up is by well let me
show you here if we drag this over here and hit in make it an instance will then
have control of this map over here if this wasn’t here then we could click on
it and say go to v-ray and say v-ray hgri
and then you’d select an hgri for there and then you you just drag it an instant
like I just did so this actually wants to be instance here so we need to make
sure that this and this are linked and now we can edit it here and it will have
an effect on our light so let’s look at what I have there I have this basic HDR
I so HDR eyes you can search for them on the internet you can purchase them this
is a purchased one so I can’t provide it for you it does not belong to me you can search for HDR eyes and pop them
in here and you can see that that is just a 360-degree panoramic image but if
you look at it in Photoshop or in other photo editing software you’ll see that
it has so much depth like this spot is very very bright it’s not just white
it’s white times four or something like that and the dark areas are very very
dark so it has that whole range in there and 3ds max is able to take that range
and say oh this is extremely bright it’s white times four so that’s like emitting
a certain amount of light and this is really dark so it’s not emitting any
light so it actually is just using this image to to actually light your scene to
physically light your scene so the way they create those is with multiple
different exposures on the same picture and then they combine them together
offering that huge amount of range and that range is enough to actually provide
light information to your scene most of you are probably familiar with HDR eyes
and how they work I’ll provide some links of where to find some good free
HDR eyes for your scene so amazingly that image applied to that v-ray dome
light is all we need to light our scene the way we saw in our rendering another
interesting thing to consider is that we put a middle gray on everything as our
material override but actually in this scene it’s going to be kind of
overwhelmed with white surfaces if these panels remain white like this then our
scene is going to be a lot more towards white than it is towards middle gray so
if we change this to be closer to white like here then we’ll get a more accurate
accurate representation of what our rendering will be when we have all our
real materials on here so this is something to consider when you’re doing
an override rendering let’s see what that looks like okay by turning up the
brightness of the material the override material we’re now getting a more
accurate representation something that’s closer to what our final materials would
actually look like so that actually brightens up the room quite a bit now if
we wanted to darken up the room if we wanted to do one of those dark panels
with just highlights around where the table is we could do that too
again we would just do it with override material to give us an overall much
darker scene so if you wanted to go with a theme of darker materials then you
could change your override to something that’s much darker and that will give
you a good idea if you’re lighting there so let’s do that with a dark grey and
maybe I have these lights here for the candles and we’ll get into what those
are and how they’re created but for now I’m just going to turn them on so we can
see what it looks like with very dark textures and just candlelight lighting
the table see what that looks like okay interesting
this looks dramatically different right but keep in mind we’re not changing the
exposure of our camera at all it looks like nighttime over here but
it’s not we just put a darker material overall on our scene so this gives you
kind of a preview of different kind of effects you could get depending on what
kind of materials you use so if I use like a black wood floor and dark grey
panels then my lighting overall would look kind of like this if I use the
white materials that I have in here currently it will look more like the
final rendering I’ve showed you before so that’s something to keep in mind
depending on what color scheme and material scheme you want to go with that
will adjust that will change your lighting quite a bit so I know that this
is going to be a light room so I went with a light override material and that
give me a more accurate accurate representation but amazingly you can see
that with just the simple light coming in from outside and in this case these
little candle lights how much changes you can make and how much lighting can
go on how much reality you can create with just some very simple lighting
techniques one thing I should mention as well before I go with the HDR I is some
of the settings inside of the actual v-ray HDR I’m at okay so the light the
default light or the dome light we basically left at default settings but
in here is where you can make additional adjustments so that image the main
things that you adjust in here are the overall multiplier or at least the way I
do it and then the horizontal rotation so when you’re looking at this consider
that point zero right there okay now when you’re looking at the top of your
scene and your light is here that line going out that’s gonna be
point zero so the middle of your image is going to be right out here so a lot
of HDR eyes are set up so the Sun is right in the center right here and that
will be right here at this line that consider that zero so if you do 290
rotation it goes 90 180 270 to 90 okay well to 90 right about here so the
middle of my image is up here that’s how it’s being emitted that’s how it’s
emitting light in this one I think the Sun is off to the side a little bit and
so or maybe it’s because my image is rotated yeah so it’s actually coming the
bright the middle part of the sky is coming at the same angle as this Sun
right there so that’s kind of perfect you need to
make sure you’re on mapping type spherical for almost all HDR eyes I’ve
seen that’s the mapping type that you want and sometimes HDR eyes come with
their own instructions but most people when they construct them they construct
them to be used with a spherical mapping type which is great it’s like taking a
spherical image on your phone same thing except with multiple exposures okay so
the horizontal rotation I showed you the overall multiplier you just mess with if
it’s at 1 it’s like that I put it at 10 because think about when you’re inside
and then looking outside into a bright afternoon what happens your eyes you
start squinting because it’s so much brighter outside than it is inside so
what you are doing is exaggerating the brightness of outside as compared to
inside to make it really really bright and so you saw in the final image that
the light coming from outside is kind of blowing out in that in that window bench
area and that’s how it should be if you look at interior foot photography again
you’ll notice that the outside is almost always unless it’s very overcast or
unless they do camera tricks is going to be much more exposed than inside so
that’s why that’s turned up to 10 to be very bright and that’s why you get that
sharp direct light coming in through the window let’s move on to some of the
creation of some of these other lights and start adding them in so they add to
this light and start creating the overall effect that we’re looking for

7 thoughts on “V-Ray Tutorial: Learn Vray HDRI Lighting For Arch Viz Interior

  1. Since Arnold is now the default renderer and Vray is not cheap because I am not on a student license. How does Arnold stack up? Can you basically get the same results as you can with Vray? Thanks

  2. Hi.

    when I apply HDIR, HDRI image is coming bigger than the model

    can u please tell how can I fix this property?

Leave a Reply

Your email address will not be published. Required fields are marked *