What's happening ladies and gentlemen,
this is Minh from Architecture Inspirations.
Today I'm going to show you
how to create a wet ground surface
in Vray 3.6 for Sketchup.
Let’s get started.
To create this effect,
we are going to need two materials,
one is the ground material
and the other is the water material.
For the ground material,
I’m going to use this Asphalt material here
in the built-in vray material library
and drag it over here to add it to the model.
Now let’s create a water material
by clicking here to add a Generic material,
then rename it to Water.
Let’s expand the advanced settings
and set the diffuse color to black,
the reflection color to white,
and the refraction color also to white.
Next, create a blend material,
and we will name this Wet Ground.
I’m going to use this asphalt material as the base.
And now let’s close this out,
and create a 25’ by 25’ square,
remember to reverse the face
so the front face is point upward.
then apply this Wet Ground material
to the surface we just created
Now start the interactive render to see how it looks.
It seems like the scale is a little too small
so use Sketchup material editor
and increase the size here.
There we go, that's better
Let’s move closer to see more details.
Now go for the Coat of the blend material,
we are going to set that
as the Water material we created.
You can see that the water
is on top of our asphalt surface.
Water is supposed to be quite reflective
but you can’t see any reflection here,
this is due to the sunlight settings.
So I'm going to add a dome light.
And turn off the sunlight
and also increase the intensity of the dome light a little.
There we go, but.. it looks like a mirror.
To fix that, let’s add a blend texture.
Any texture that goes here will control how the coat
is blended to the base material
For example a checker texture
would result in this image.
Any white areas in the blend texture
will make the coat visible,
while the black areas will mask away the material,
making it invisible.
Obviously this is not what we want,
what we want is the Noise B texture here.
For the settings of this texture,
first, change the Type to Fractal
and change the low to 0.55
and the high to 0.6 on the levels
You can see that it’s starting to look like water spots
on the top of the asphalt.
But if you look closely,
you can see the seams at the edges of the texture.
To fix this, go down and turn on Use 3D Mapping.
This will get rid of the seams
but also make the texture smaller,
so you can increase the size here.
And I will also increase the iterations here
to increase the level of detail.
It’s actually a little too reflective
so we need to change the color B
to more of a gray color.
There we go.
What we are going to do next
is add a bump map to the water material.
So let’s go to our water material,
and scroll down to Maps,
turn on Bump Map,
and click here to add a texture.
We are going to use the Noise A texture
and again, set it to 3D Mapping,
then set the frequency to 1
and the Amplitude to 0.05.
You can even adjust this bump map further
with this amount here.
Now that looks good,
but the edges of the water spots look a little unrealistic,
let’s fix this by adding more texture to the edges.
We can do that by adding another bump map.
But since the water material already has a bump map,
if we want to add another one,
this is what we need to do.
First, create a Bump Material
and name it Water + Bump.
Then let’s set our Water material as the base
and we are going to add a bump here.
Before we do that,
let’s go back to our Wet Ground material
and set the coat to the new Water + Bump.
If you remember,
this blend map is what controls our water spots,
let’s right click it, copy it,
and go over to the Water + Bump
to paste a copy as the bump map.
You can see that this added textures
around the edges of the water spots.
However, the water is protruding upward,
and that’s not what we want.
So go into the bump map,
and go down to color manipulation
and invert the texture.
There we go,
now the water spots look like small ponds of water
on our asphalt ground.
You can also reduce the amount with this slider here.
And there you go,
that’s how you create a wet ground surface
in Vray 3.6 for Sketchup.
A cool thing about this blend and bump material
is that you can swap out the base and coat
for anything you like.
Let’s say I don’t want the asphalt material
but I want this soil material,
then just add it to the materials list,
and set the base to our new material
and bamm there you go.
You should definitely experiment more with
this blend and bump materials
because they are very powerful tools
which you can use to create very complex materials
like snow, or snowy grass, and so on.
When you create a material you like,
you can always save it for later using this button here,
and then use this button to import it into another model.
Well that’s all for today guys,
leave a like if you found this video helpful
and comment below if want me to do more videos
on creating materials like this.
Stay inspired guys, and I'll see you,
Next time.