Unity Study for Basic

Material And Skybox

“false reflex”

On reflection of objects
Example
Sphere reflection
As you see this Image

this is my Unity rendering result .
You want to say :“the Sphere reflection is Skybox”.But it is a “false reflex”.
Why? Because in Lighting if we appoint a Shybox Image( this example uses Cross Image(CI)) .We make smoothess on a Sphere,You see “reflex” is false.Because in the Lighting Environment Refection’s source is Skybox’s CI.
Like this Image

Please Pay Attention to Environment Relections’s Source.
If we change it,the Sphere material can reflect another Image.
So you can see these Images.

Wow the environment is overgrown with grass.
It must be not a magic trick.If you change the Environment Reflections’s Score ,you can know it.

Resolution of “false reflex”

we also see this Image. Environment Reflections’s Resolution is 128.Obviously,this resolution is not higher than Shybox.

You can imagine cut the Shybox into 128,this is a crazy imagine but it is true.

Another knowledge.

Intensity Multiplier
English explanation
Controls how much the skybox or custom cubemap affects reflections in the Scece.A value of 1 produces physically correct results.
Chinese say"反射权值/权重"

Bounces
English explanation
Controls how many times a reflection includes other reflections.A value of 1 results in the Scene being rendered once so mirrored reflections will be black. A value of 2 results in mirrored reflections being visible in the Scene.
Chinese say :“反射次数”

Skybox Material
the environment CI material.
Sun Source
If Scene has sun it can appoint a Light to sun.
Like this.

Unity comes with.
We can change it position.
Like this:

The sun set ,so we can change it.For example,Scripts.

Scene Lighting

If Environment Lighting’s Scene using color. The environment objects Color using the same color.
It is noting that “Ambient color” is the basic of environment.

Object material Metallic impact on Environment lighting and Environment Reflection.

First if we use color for Environment lighting .Like this Image

As you see the Sphere have red and Skybox color.
If we make metallic to full

you can see red disappear
If we make metallic zero.

red have more.
So we know object metallic is used to adjust the relationship between Environment Lighting and Environment Reflection.