blendReflect: Intense Highlight Creation

Mathematical Foundation of Reflect

Reflect blending creates intense highlights by squaring the base color and dividing by the inverted blend color. This mathematical operation produces dramatic brightening effects similar to photographic reflection.

The mathematical definition is:

$$C_{result} = \begin{cases} 1 & \text{if } C_{blend} = 1 \\ \min\left(\frac{C_{base}^2}{1 - C_{blend}}, 1\right) & \text{otherwise} \end{cases}$$

The squaring operation amplifies bright base values while the division creates non-linear intensity increases as blend approaches white.

Reflection Enhancement Properties

Property	Description	Mathematical Behavior
Quadratic Amplification	Base values squared	$C_{base}^2$ increases contrast
Division Intensification	Inverted blend division	Bright blend creates strong effect
Highlight Preservation	White blend preserves maximum	Safe upper bound
Non-linear Response	Exponential brightness curve	Dramatic lighting simulation

ライブエディター

const fragment = () => {
      const base = vec3(0.6, 0.8, 0.9)
      const reflection = float(0.6).smoothstep(0.2, uv.distance(vec2(0.7, 0.3)))
      const blend = vec3(reflection.mul(0.8))
      const result = blendReflectVec3(base, blend)
      return vec4(result, 1)
}