Ah sorry I meant a microfacet based specular (i.e. phong distribution).

diffusely reflected or specularly reflected

By 'specularly reflected' do you mean mirror? and 'diffusely' glossy? In the glossy case, there're direction generators/pdfs for importance sampling the distributions (phong, etc). Don't know how it compares to 'random trials'.

I choose the outcome using a random trial by calculating the Fresnel coefficient

Ah ok.

Ah sorry I meant a microfacet based specular (i.e. phong distribution).

diffusely reflected or specularly reflected

By 'specularly reflected' do you mean mirror? and 'diffusely' glossy? In the glossy case, there's a direction generator/pdf for importance sampling the distributions (phong, etc). Don't know how it compares to 'random trials'.

I choose the outcome using a random trial by calculating the Fresnel coefficient

Ah ok.

Ah sorry I meant a microfacet based specular (i.e. phong distribution).

diffusely reflected or specularly reflected

By 'specularly reflected' do you mean mirror? and 'diffusely' glossy? In the glossy case, there's a direction generator/pdf for importance sampling the distributions (phong, etc).

I choose the outcome using a random trial by calculating the Fresnel coefficient

Ah ok.

Ah sorry I meant a microfacet based specular (i.e. phong distribution). The perfect reflection one is easy to sample

I choose the outcome using a random trial by calculating the Fresnel coefficient

Ah ok.

Ah sorry I meant a microfacet based specular (i.e. phong distribution). The perfect reflection one is easy to sample

I choose the outcome using a random trial by calculating the Fresnel coefficient

Ah ok.

Ah sorry I meant a microfacet based specular (i.e. phong). The perfect reflection one is easy to sample

I choose the outcome using a random trial by calculating the Fresnel coefficient

Ah ok.