8000 Major update: GPU textures. by Enigmatisms · Pull Request #8 · Enigmatisms/cuda-pt · GitHub
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Major update: GPU textures. #8

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Merged
merged 12 commits into from
Jan 1, 2025
Merged

Major update: GPU textures. #8

merged 12 commits into from
Jan 1, 2025

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@Enigmatisms Enigmatisms commented Jan 1, 2025 •
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Major features are added to this repo.

  • Texture mapping. Currently, host side allocates and manages the textures with pitched array, and through a __constant__ variable, the device side can access the textures via tex2D with hardware LERP. Texture ops supported:
    • Diffuse / Specular / Glossy component albedo.
    • X/Y roughness and index of refraction.
    • Emission and normal.
  • Environment map emitter and AreaSpot emitter. The former one, is, as its name implies. The latter one is the area emitter with limited angle of emission. The environment map supports online azimuth and zenith angle adjustments.
  • Emissive textures are supported. Now, AreaSource and AreaSpotSource can take a reference to a texture, which will determine the color of the emission, at given UV coords.
  • Chromatic dispersion BSDF is implemented, with simple spectral sampling and XYZ<-> RGB conversion. Check the latest README for more details.
  • lodepng is removed from the external dependencies. Instead, stb is added for loading textures and storing JPEG / PNG format outputs.
  • GUI got multiple updates.
  • Fixed multiple bugs.

8000
@Enigmatisms
WIP: prepare to support textures.
825b978
@Enigmatisms
WIP: texture mapping - Now we have it! Yet it is not perfect.
b770190
@Enigmatisms
[Minor] Fixed Roughness map importing problem
d4bad4c
@Enigmatisms
Texture completed. Now, time for environment map emitter.
a75ff95
@Enigmatisms
Environment map emitter completed. Online rotation of environment map.
4424cc7
@Enigmatisms
Dispersion BSDF done. But prisma scene is awful (Diamond scene is goo…
7b04a0b 
…d, but there is no chromatic caustics).
@Enigmatisms
Multiple updates:
2547031 
- Area Spot Source
- Dispersion BSDF
- Fixed dispersion online loading
- Fixed WFPT's EnvMap Emitter
@Enigmatisms
WIP: Kitchen scene, prepare for it.
bded11b
@Enigmatisms
Finished the rendering of the kitchen scene. Next up: texture on area…
bd14df0 
… emitters.
@Enigmatisms
Emission texture WIP, but the current version is ready to roll.
7bf042f
@Enigmatisms
Updated README and assets.
11a9dc8
@Enigmatisms
Updated emission texture.
869fcb0
@Enigmatisms Enigmatisms added documentation Improvements or additions to documentation enhancement New feature or request major Major code base changes labels Jan 1, 2025
@Enigmatisms Enigmatisms self-assigned this Jan 1, 2025
@Enigmatisms Enigmatisms merged commit 80bfe3a into master Jan 1, 2025
@Enigmatisms Enigmatisms deleted the texture branch January 1, 2025 16:50
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