Towards perceptual control of physically based spectral rendering

Realistic rendering research focuses on generating images that should be perceived the same way as a real scene. We will describe a physically based spectral framework where energy, materials and light field are wavelength dependent. To reduce the computational load we also make use of the high variations of the human vision sensitivity to adapt the accuracy of every computation. As no comprehensive human vision model exists, we use several types of perceptual control. In order to adapt computation accuracy we have also derived a simple but useful perceptual error estimate. This paper will introduce some ideas.