Table of Contents
What is the meaning of specular reflection?
Definition of specular reflection : reflection (as of light by a mirror) at a surface having irregularities small as compared with the wavelength of the incident radiation.
What does specular value mean?
In computer graphics, it means the quantity used in three-dimensional (3D) rendering which represents the amount of reflectivity a surface has. It is a key component in determining the brightness of specular highlights, along with shininess to determine the size of the highlights.
What is an example of specular reflection?
Specular reflection is reflection from a mirror-like surface, where parallel rays all bounce off at the same angle. Examples of specular reflections include a bathroom mirror, the reflections on a lake, and glare on a pair of eyeglasses.
What is specular shading?
Specular shaders create the bright highlights that one would see on a glossy surface, mimicking the reflection of light sources. Unlike diffuse shading, specular reflection is viewpoint dependent.
What is a specular object?
Specular reflection is a type of surface reflectance often described as a mirror-like reflection of light from the surface. Light reflects on a surface known as specular surface (similar to that of a mirror) at the angle of incidence. It is further reflected at a similar angle.
What do you mean by specular component?
The specular component is responsible for sharp mirror-like reflection from a surface. It can be expressed as a product: dIr,sp = |F|2 • e-g • S • Ii.
What does the term specular mean?
Definition of specular : of, relating to, or having the qualities of a mirror.
What is the difference between specular and diffused reflection?
The reflection of light can be roughly categorized into two types of reflection: specular reflection is defined as light reflected from a smooth surface at a definite angle, and diffuse reflection, which is produced by rough surfaces that tend to reflect light in all directions (as illustrated in Figure 1).
What is a specular workflow?
In the case of a metallic material, the Albedo color controls the color of the specular reflection and most light reflects as specular reflections. Non-metallic materials have specular reflections that are the same color as the incoming light and barely reflect when looking at the surface face-on.
What is specular unity?
Specular computes the same simple (Lambertian) lighting as Diffuse, plus a viewer dependent specular highlight. This is called the Blinn-Phong lighting model. It has a specular highlight that is dependent on surface angle, light angle, and viewing angle.
What is a specular map?
Specular maps are used to define the shininess/highlight on a surface. Typically a specular map is a black and white image that maps out the shininess value on an object. The whiter the pixel, the more shiny the object in that specific place on the texture (or on the texel).
What causes specular reflection?
Reflection off of smooth surfaces such as mirrors or a calm body of water leads to a type of reflection known as specular reflection. Reflection off of rough surfaces such as clothing, paper, and the asphalt roadway leads to a type of reflection known as diffuse reflection.