Questions tagged [pbr]
78 questions
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Luminance and Radiance in computer screen
I am currently building a graphics engine. I have a slight confusion on the imaging pipeline of computer screen. My question is how does computer transform the colour in the final frame buffer to radiance on the screen. My assumption is that the…
kevinyu
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Understanding the irradiance map generation
I am trying to understand how the generation of irradiance maps works. I was reading LearnOpengGL tutorial and Codinglabs article. Reading those articles, I got a bit confused about how we use convolution to generate the irradiance map.
Do we apply…
Riki
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How to implement physically based unit in pbr renderer
According to this note, Frostbite use photometry unit in their calculation. I am trying to mimic this feature, but I am not sure what transformation need to be done. I will try to explain what I have in mind.
First we do gamma correction(pow(2.2))…
kevinyu
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how can I compute a roughness map without any 3D softwares?
Recently, I want to use a roughness map to get better rendering results.
Most information on the internet is about the operation of 3D software.
So, how can I generate a roughness map of my own 3D mesh?
Thanks very much.
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PBR : generating dynamic HDR maps
Most of the PBR tutorials out there use HDR maps loaded from disk. But in games these maps need to be generated by taking snapshots of the scene from the objects location which is where problems arise.
Let's say there are just 2 objects with PBR…
Sync it
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