with rough surface, the light hitting it will reflect incoherently, meaning it will be scattered in every direction and with smooth surfaces like ice or mirror the light will reflect coherently, all going in the same direction
Light reflects from all sorts of surfaces. "Regular reflection" is not a technical term that I'm familiar with.
However, you may be asking if you normally see light that has come from an object in everyday life...
And yes, without reflection (and refraction) we would not see anything but direct light sources.
A rough surface is said to have a "diffuse" reflection. This means that light hitting the surface is scattered in a bunch of different directions.
If the light hits a plane surface, regular reflection will take place and if light hits a rough surface, diffused (irregular) reflection will take place. Here is a diagram for both. Diffused (irregular) Regular
what is a regular reflection
Diffused reflection.
When light waves hit a rough surface they create a diffuse reflection. This means that the waves spread out in different angles.
It can reflect off a rough surface but the image is not clear ,causing an irregular reflection.
Regular Reflection= Happens when light reflects off a smooth surface. Diffuse Reflection= Happens when light reflects off a rough surface. Reflection= The bouncing of waves, off a surface or and object
Reflection of light from a rough surface is known as "Diffused" or "Irregular" reflection, because the light rays are barely seen after the reflection of light from a rough surface.
If the light hits a plane surface, regular reflection will take place and if light hits a rough surface, diffused (irregular) reflection will take place. Here is a diagram for both. Diffused (irregular) Regular
what is a regular reflection
Regular reflection is by a plane and shiny surface while the irregular one is from a rough surface.
Diffused reflection.
When light waves hit a rough surface they create a diffuse reflection. This means that the waves spread out in different angles.
scattered or diffused, the opposite of collocated and focused
diffuse
It can reflect off a rough surface but the image is not clear ,causing an irregular reflection.
When light bounces of a shiny surface, such as a mirror, this is called specular reflection.(Diffuse reflection is when light bounces of a rough surface, such as a wall. You can tell it's a rough surface because you can't see your reflection.)
diffuse reflection