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Diffuse Reflection - an overview | ScienceDirect Topics
https://www.sciencedirect.com/topics/engineering/diffuse-reflection
What is Diffuse Reflection? - Computer Hope
https://www.computerhope.com/jargon/d/diffuse-reflection.htm
In CGI, diffuse reflection can be calculated by a ray tracer to enhance the photorealism of a rendered image. Instead of reflecting the light (specular reflection), the ray tracer takes samples of multiple diffuse reflection angles. This process increases the time and processing power required to render the image, but produces better results.
Ray Tracing - University of Washington
https://courses.cs.washington.edu/courses/csep557/19sp/assets/lectures/ray-tracing-1pp.pdf
We'll call these flows “light rays.” wLight rays travel in straight lines in free space. wLight rays do not interfere with each other as they cross. wLight rays obey the laws of reflection and refraction. wLight rays travel from the light sources to the eye, but the physics is invariant under path reversal (reciprocity). 4 Eye vs. light ray tracing
Raytracing Reflection, Refraction, Fresnel, Total Internal ...
https://blog.demofox.org/2017/01/09/raytracing-reflection-refraction-fresnel-total-internal-reflection-and-beers-law/
There is non specular reflection, aka diffuse reflection, which just means that light is reflected off of a surface in a non mirror like way. This is accomplished with diffuse lighting where commonly we dot product the normal of a surface with the direction from the surface to the light to know how much to light that point on the surface.
raytracing - Ray tracing glossy reflection: sampling ray ...
https://stackoverflow.com/questions/32077952/ray-tracing-glossy-reflection-sampling-ray-direction
Diffuse reflection means that the angle of the outgoing direction is randomly & evenly distributed about the surface normal's hemisphere. You could think of glossy reflection as being the spectrum between these two extremes, where the location on that spectrum (or amount of gloss) is defined by a "glossiness" factor that could range from 0 to 1.
Reflections and Refractions in Ray Tracing
https://graphics.stanford.edu/courses/cs148-10-summer/docs/2006--degreve--reflection_refraction.pdf
ray tracer to achieve some specific effects, most ray tracers – to our relief – don’t. Instead, they conveniently assume all light is unpolarised. To do that, they simply take the aver-age of both polarisations. We’re going to make the same ap-proximation. Subsequently, we have for the reflectance and transmittance: R(θ i)= R⊥(θ i ...
graphics - Raytracing - how to combine diffuse and ...
https://stackoverflow.com/questions/15619830/raytracing-how-to-combine-diffuse-and-specular-color
You can dim the light source a bit, that is multiply the diffuse-strength you calculated form the cosine by the brightness - say 0.8 or 0.7. You could limit the color-saturation (green that is) of the sphere and make it less greeen ;)
Basic Ray Tracing - Department of Computer Science …
https://www.csee.umbc.edu/~adamb/435/Slides/raytrace.pdf
Ray Traced DOF • Move image plane out to focal plane • Jitter start position within lens aperture – Smaller aperture = closer to pinhole – Larger aperture = more DOF blur Glossy Reflection 49 Motion Blur • Things move while the shutter is open Ray Traced Motion Blur • Include information on object motion • Spread multiple rays per pixel across time
Ray tracing and shading
http://graphics.cs.cmu.edu/courses/15-468/lectures/lecture3.pdf
Diffuse reflection - light is reflected in all directions - colored by surface color Smooth specular reflection/refraction (e.g. chrome, glass, glaze/varnish) - light reflected/refracted only in a single direction - colored by source color 15 Idealized materials 16 Diffuse reflection 17 Diffuse reflection Real surface Lambertian reflection
Ray Tracing Algorithm - Virginia Tech
https://people.cs.vt.edu/yongcao/teaching/csx984/fall2011/documents/Lecture4_RayTracing_Algorithm.pdf
You raytrace the refracted ray. 1. Lights 2. Reflection 3. Refraction S Ashiny, transparent S B,S Ddiffuse,opaque S Cshiny, opaque Light Eye S C S A S D P A S B Ray Tracing Algorithm
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