Questions tagged [ibl]
The ibl tag has no usage guidance.
4
questions
0
votes
1answer
219 views
How Image Based Lighting is applied to indoor scene?
Now the mainstream engine's approach is to use image-based lighting to achieve approximate global illumination, but such a technique seems to be only applicable to outdoor scenes.What kind of ...
0
votes
1answer
116 views
Weirdly looking diffuse irradiance map
I have problem with creating diffuse irradiance map. As reference I am using https://learnopengl.com/PBR/IBL/Diffuse-irradiance and https://github.com/TheEvilBanana/PhysicallyBasedRendering/blob/...
15
votes
3answers
2k views
Importance Sampling of Environment Maps
What is the best currently known and ideally also production-verified approach for sampling environment maps (EM) in a MIS-based uni-directional path tracer and similar types of renderers? I would ...
5
votes
1answer
176 views
Image based lighting, tangent space coordinates, and optimization
When I saw an implementation of normal mapping that computed the TBN matrix in the vertex shader and converted everything (in particular the view vector and light vector) to tangent space at that ...
