All of these examples seem to calculate irradiance for a single point, but objects of course have infinite possible points. How many points do we compute irradiance for and how costly are these computations?
muuncakez
small follow up to @colinsteidtmann... would uniform sampling be applicable to computing irradiance overall on an object (assuming its being uniformly lit by the overhead)? If not being uniformly lit, does adaptive irradiance sampling exist? How would either of these samplings look like as a computation?
muuncakez
lil clarifying question: Are the different derivations in the past couple of lecture slides for directional or non-directional light? or is irradiance inherently non-directional?
All of these examples seem to calculate irradiance for a single point, but objects of course have infinite possible points. How many points do we compute irradiance for and how costly are these computations?
small follow up to @colinsteidtmann... would uniform sampling be applicable to computing irradiance overall on an object (assuming its being uniformly lit by the overhead)? If not being uniformly lit, does adaptive irradiance sampling exist? How would either of these samplings look like as a computation?
lil clarifying question: Are the different derivations in the past couple of lecture slides for directional or non-directional light? or is irradiance inherently non-directional?