Light availability has a profound effect on plant growth and development. One of the ways to study the effects of light intensity on plant growth and development without the confounding problem of photosynthate availability is sucrose injection/supplementation. A greenhouse experiment was conducted to evaluate the effects of light levels (0% and 75% shade) and sucrose injection (distilled water...

Nowadays, hardware support for Gouraud shading is state-of-the-art. Most hardware implementations of the Phong shading algorithm lack flexibility, for example are restricted in the number of light sources. In this paper, we will present a concept of shading processors that has been developed in a rendering system called PROOF. Two types of processors have been designed, one performing the norma...

This thesis focuses on the interaction between light sources and materials which is often called shading. It describes the design of the shading system implemented for the second version of the Turtle renderer that supports the flexibility and power of the Maya rendering packages shaders. It discusses different approaches to shading, how rendering of passes can be incorporated, multi threading ...

The use of reflection lines and specular high lights for the quality control of car body surfaces is an important issue in the development process of a car. The interactive examination is based on standard graphics tools such as the SceneViewer of OpenInventor which simulates reflection lines by using striped environment maps. The interpolation of texturing and shading values is critical and re...

In this part of the course we will review some examples of shading algorithms that we might want to implement in a real-time or interactive system. This will help us to identify common approaches for real-time shading systems and to acquire information about feature sets required for this kind of system. The shading algorithms we will look at fall into three categories: realistic materials for ...

The role of competition in tree communities is increasingly well understood, while little is known about the patterns and mechanisms of the interplay between above- and belowground competition in tree communities. This knowledge, however, is crucial for a better understanding of community dynamics and developing adaptive near-natural management strategies. We assessed neighbourhood interactions...

Diffuse interreflections mean that surface shading and shape are related in ways that are difficult to untangle; in particular, distant and invisible surfaces may affect the shading field that one sees. The effects of distant surfaces are confined to relatively low spatial frequencies in the shading field, meaning that we can expect signatures, called shading primitives, corresponding to shape ...

In two experiments, we tested whether disparity and shading cues cooperated for surface interpolation. Observers adjusted a probe dot to/lie on a surface specified either by a sparse disparity field, a continuous stereo shading or monocular shading gradient, or both cues. Observers' adjustments were very consistent with disparity information but their adjustments were much more variable with sh...

[1] Changes in soil respiration, one of the major fluxes of global carbon cycling, could significantly slow down or accelerate the increase in atmospheric CO2, with consequent feedbacks to climate change. It is critical to understand how substrate availability regulates soil respiration in projecting the response of carbon cycling to changed climate. We conducted a clipping and shading experime...