Questions tagged [reflection]
The reflection tag has no summary.
46 questions
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SSR not reflecting when rendering
I am trying to implement SSR using DDA but the output result seems to not product any reflections or reflect the scene. I feel the code is correct from my knowledge of graphics at the moment and ...
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Colored vs. Uncolored Reflections
Recently I read CSE168_03_Fresnel. In this pdf, when it comes to Fresnel Metals, it says
Another important property of metals is that this reflectance is wavelength dependent. This causes the ...
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How does ray tracing handle the calculation of reflections and shadows in the presence of multiple translucent objects?
Raytracing can handle the interaction between light and multiple translucent objects in a scene by using global illumination and raytracing with volumetric effects to calculate the color of the object ...
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How to pick values of ambient, diffuse, specular for Phong Lighting?
I have the following code in python using the vedo package
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BlinnPhong sphere edges look worse than Phong. Am I doing it wrong? (code and pictures included)
First of all, I am completely new to this so please excuse me if this is a dumb question.
I am following the book Real-Time 3D Rendering with DirectX and HLSL, for now implementing shaders in Nvidia ...
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How does Unreal Engine 5's Lumen (most likely) implement reflections?
In this YouTube video, the creator mentions that reflections in Unreal Engine 5's Lumen "work by tracing the path of light as it bounces off of surfaces in the game world." Does this mean ...
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Fresnel and light reflection/refraction
I keep reading about fresnel and there is one thing I don't fully understand.
My understanding :
Here is my understanding so far, so please correct me where I am wrong.
Fresnel is related to ior (eta)...
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light spectrum reflection / absorbation?
I would like to know how material works with respect to light.
first of all, I've a lightsource e.g. the sun. The sun has a spectrum like figure1
Figure1
When an object is illuminated by the sun, how ...
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Normal mapping should affect specular reflections?
I'm asking this question on behalf of a friend so can't provide any images for now. The problem is to simulate a car paint material with some flakes or graininess in it. This is first done in blender ...
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Converting from RGB Color Picker to Surface Reflectance
I am trying to derive the material reflectance values from a color picker tool(say MS Paint).
My understanding is to first gamma decode(raise to the power of 2.2) the RGB values from the color picker, ...
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Realistic chainmail reflections for videogames
If I were to create a chainmail that has realistic reflections, where would I start learning about what mechanisms to use? Normal cloth seems too simple, and the reflections look bad (they have to be ...
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Why Screen Space effects flicker?
Nowadays is less of an issue, i think SS got massaged a little bit, but you can still spot it. These happen with SS Reflections, SSAO and Bloom. When you move the camera, the effect starts to flciker ...
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Controlling "zoom" and "position" of a cubemap in shaders
I am trying to mimic reflections in image composition using shaders.
I have gotten this far:
In this image the floor is "reflecting" the back wall, however the reflection is uncanny because the scale ...
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Wrong reflection
Here is a youtube video showing my problem:
youtube.com/watch?v=y8J7VhS2pkM
I think I'm either doing the texture lookup on the reflection texture wrong, or the reflection or view matrix is somehow ...
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Which technique should be used for rendering under water images, Ray tracing or Radiosity?
Rendering is the process of computing a three-dimensional geometric description of a scene into a two-dimensional image representation that looks real. Ray-tracing and Radiosity are two of the most ...
