aclysma / engine_prototype Goto Github PK

https://www.3dgep.com/forward-plus/
https://learnopengl.com/PBR/Theory
https://cdn2.unrealengine.com/Resources/files/2013SiggraphPresentationsNotes-26915738.pdf
https://google.github.io/filament/Filament.md.html

• Basic surface/light interaction as described in the SIGGRAPH 2013 paper from Epic
  • Directional Lights
  • Point Lights
  • Spot Lights
• Image-based lights
• Area Lights
  • Sphere
  • Tube
• Implement some of the variants for NDF/G/F components as shown in the google paper
• Implement physically accurate units for lights and cameras
• Other physical properties
  • Clearcoat
  • Sheen
  • Anisotropy
  • Subsurface
• Need to investigate options for transparent/translucent materials

Need a good way to clean these up when mesh components are dropped

The current technique is not efficient and can produce specular aliasing. Look into other methods and optimizations:

http://rastergrid.com/blog/2010/09/efficient-gaussian-blur-with-linear-sampling/
https://docs.unrealengine.com/udk/Three/Bloom.html
http://kalogirou.net/2006/05/20/how-to-do-good-bloom-for-hdr-rendering/

In general, it looks like downsampling can be used to smooth out sharp changes in lighting by smooth/shiny objects

• Translate
• Scale
• Rotate

Here's the info, with GTX 1070s

thread 'main' panicked at 'called Result::unwrap() on an Err value: CreateInstanceError(InstanceError(VkError(ERROR_LAYER_NOT_PRESENT)))', engine\src\init.rs:112:53
stack backtrace:
[2020-08-07T13:05:14.598022500Z DEBUG engine::assets::gltf::importer] Importing material instance uuid AssetUuid(c6a2bd92-a3ff-41be-9d17-1a83b10bf049)
[2020-08-07T13:05:14.598051000Z DEBUG engine::assets::gltf::importer] Importing material instance uuid AssetUuid(6476ac04-b67f-4579-9ae8-879e1040e302)
[2020-08-07T13:05:14.598071100Z DEBUG engine::assets::gltf::importer] Importing material instance uuid AssetUuid(5669f73a-6178-4d2f-a22d-6b1b8d25f9ec)

Now that there is an HDR pipeline in place, it would be good to build a histogram of the brightness in the image to implement auto-exposure.

• Point light
• Spot light
• Directional light

Should use a matrix for local/world conversions and have systems depend on that instead of position/rotation/scale components

Need to improve how imgui works with handles. At minimum should be able to paste in asset UUIDs and/or paths but long term will need a better way to do this