Previous to this class, I never considered that texture in graphics is not a physical thing, but really just the light reflecting off the surface. It is interesting to me since texture is usually something we can describe based of off touch, but in graphics it has to be represented visually through BRDF.
muuncakez
@zyousafzai21 I totally agree! its not the object itself that "makes it" glass, its how the object would realistically interact with its environment that makes it glass and this is also what we are rendering. The rendered material is not a "material" but rather a representation it seems!
agao25
^^ I think this is also why ray tracing algorithms are so computationally heavy, because they have to solve the mathematical result of all these real interactions (defined by radiometry/photometry) for a variety of surfaces and then mesh and display them.
Previous to this class, I never considered that texture in graphics is not a physical thing, but really just the light reflecting off the surface. It is interesting to me since texture is usually something we can describe based of off touch, but in graphics it has to be represented visually through BRDF.
@zyousafzai21 I totally agree! its not the object itself that "makes it" glass, its how the object would realistically interact with its environment that makes it glass and this is also what we are rendering. The rendered material is not a "material" but rather a representation it seems!
^^ I think this is also why ray tracing algorithms are so computationally heavy, because they have to solve the mathematical result of all these real interactions (defined by radiometry/photometry) for a variety of surfaces and then mesh and display them.