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validation_layer_issue_nullsampler
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86 Commits

Author SHA1 Message Date
Powei Feng
8233ab1cda Revert "[automated] Updating /docs due to commit 60df8ac" 
This reverts commit 656a4b6f32.
 2025-09-18 14:40:07 -07:00
Filament Bot
656a4b6f32 [automated] Updating /docs due to commit 60df8ac 
Full commit hash is 60df8ac6b8

DOCS_ALLOW_DIRECT_EDITS
 2025-09-18 21:32:03 +00:00
Filament Bot
1b145310f8 [automated] Updating /docs due to commit f3d0741 
Full commit hash is f3d0741853

DOCS_ALLOW_DIRECT_EDITS
 2025-07-18 17:26:56 +00:00
Filament Bot
8ef7755628 [automated] Updating /docs due to commit 06b0d52 
Full commit hash is 06b0d5229a

DOCS_ALLOW_DIRECT_EDITS
 2025-07-17 18:00:34 +00:00
Elie Michel
0c547748bf Small typos in Design doc (#6740) 2023-04-17 10:23:16 -07:00
Mathias Agopian
bc40ff7f19 fix typos in documentation 
Fixes #6294
 2023-03-31 15:27:50 -07:00
Romain Guy
ce407ba844 Fix typo 2023-01-11 08:48:04 -08:00
Romain Guy
0ecf5118ba Update docs 2022-09-14 20:18:27 -07:00
Mathias Agopian
f772c92eed fix typo in spotlight attenuation doc 2022-09-12 12:04:35 -07:00
Mathias Agopian
7917f74bc8 Fix derivation of SH trig terms recursion 
Fixes #5866
 2022-08-02 11:22:36 -07:00
Mathias Agopian
7d086beb3f Fix "angle sum trig identity" typo 2022-08-02 11:22:36 -07:00
Mathias Agopian
37cd7d6944 Fix typo in documentation 
Fixes #5848
 2022-08-02 11:22:36 -07:00
Romain Guy
f5adbbddb8 Fix typo 2021-04-27 20:33:58 -07:00
Romain Guy
22d16c1910 Fix typo in docs 2021-02-19 12:04:45 -08:00
Philip Rideout
3862b44ef4 gltfio: Add support for KHR_materials_transmission. 
This chooses type=THIN, mode=SCREENSPACE, and blending=TRANSPARENT.

Due to sampler overload, we print a friendly error message and enable a
fallback if the user tries to simultaneously enable ubershader mode, the
clearcoat extension, and the transmission extension.
 2020-07-22 08:40:55 -07:00
Romain Guy
91f052a9b0 Clarify doc 2020-05-10 14:15:42 -07:00
Romain Guy
6a0a2d965e Update documentation 2020-05-09 15:13:25 -07:00
Romain Guy
5d3cceb2bf Fix typos in documentation 2020-04-15 10:58:13 -07:00
Mathias Agopian
5c80bfe430 update documentations with common IOR values 2019-12-08 22:18:18 -08:00
Romain Guy
564e527ac7 Fix docs typo 2019-12-05 10:17:00 +01:00
Romain Guy
79292481b3 Update documentation 2019-09-26 16:31:55 +03:00
Romain Guy
6a8e6d45b5 Improve materials under white furnace test (#1563) 
* Improve materials under white furnace test

Two major changes:
- Mobile target now implements a cheaper variant of the off specular
  peak bias (which moves the reflected vector towards the normal).
  This greatly helps with rough surfaces that may otherwise point
  toward a bright part of the IBL.
- The indirect diffuse love is now properly attenuated to avoid adding
  the energy reflected by the specular layer. This allows dielectrics
  to be correctly energy conserving under a white furnace.
- Tweak the (hacky) clear coat layer attenuation to behave properly
  under a white furnace.

* Use the same reflected vector modification everywhere
 2019-08-28 10:39:57 -07:00
Romain Guy
ac33331fd6 Update documentation to fix typos 2019-08-23 10:58:08 -07:00
Romain Guy
9cd2971b65 Fix typo in documentation 2019-07-01 17:58:03 -07:00
Mathias Agopian
4e4f7fd4ac improve IndirectLight::irradiance() documentation 2019-06-13 13:23:56 -07:00
François Guthmann
b7304084d9 Corrected minor LaTeX typo (#1234) 
The Jacobian formula display was broken in the cloth IBL section.
 2019-05-25 13:14:35 -07:00
Romain Guy
cabdc255f5 Shader code cleanup 
roughness is now called perceptualRoughness and linearRoughness
is now called roughness. It better matches papers, etc.
 2019-05-20 14:45:26 -07:00
Romain Guy
88098f99b9 Fix typo in equation 138 2019-04-16 13:39:24 -07:00
Romain Guy
4738e93b83 Replace Cloth DFG approximation with DFG LUT 
By removing the Fresnel term (often ommitted from fabric/cloth BRDFs)
we can store the DG term for the cloth BRDF in the 3rd channel of the
existing DFG LUT.
 2019-02-21 11:44:52 -08:00
Romain Guy
6f9df5bfab Update incorrect equations of importance sampling 2019-02-19 17:59:39 -08:00
Romain Guy
42acac02c0 Update documentation 
Add titles and use energy preservation vs conservation to describe
two different concepts.
 2019-02-15 09:26:52 +00:00
François Guthmann
8253006899 Typo correction 
Switched arguments in prefilteredDFG_LUT call to align with function definition in the documentation and in the code.
 2019-02-08 10:24:15 -08:00
Romain Guy
81a52411ed Clarify Fresnel term for IBL implementation of clear coat 2019-01-25 13:49:44 -08:00
François Guthmann
9915ec7841 EV100 formula typo (#543) 
Forgot the parenthesis when I corrected it, I'm sorry...
 2018-11-28 09:31:13 -08:00
François Guthmann
78804251e9 Corrected typo in formula (#519) 
It looks like there is a minus sign missing in there, see https://www.wolframalpha.com/input/?i=(((1%2Bsqrt(x))+%2F+(1+-+sqrt(x)))+-+1.5)+%2F+(((1%2Bsqrt(x))+%2F+(1+-+sqrt(x)))+%2B+1.5)

I'm not sure what the code does though https://github.com/google/filament/blob/master/shaders/src/brdf.fs#L282
 2018-11-23 10:09:54 -08:00
François Guthmann
5a402dc6a8 Corrected exposure from ev100 formula (#518) 
The new formula should be the correct one according to this document (first line p86): https://seblagarde.files.wordpress.com/2015/07/course_notes_moving_frostbite_to_pbr_v32.pdf
 2018-11-22 10:03:29 -08:00
Vallentin
81e8035cbb Fixed typos (#487) 2018-11-14 09:19:04 -08:00
Romain Guy
bb3e9a47e5 Update link to CIE colormetric tables 
Fixes #452
 2018-11-05 15:53:41 -08:00
Mathias Agopian
3bf0d6a4ab document artifacts due to giving up mipmaps (#299) 
* document artifacts due to giving up mipmaps

- also talk about lod remapping
- try to avoid to confuse alpha with roughness

* fix typos
 2018-09-24 16:14:52 -07:00
Mathias Agopian
22f7599e73 Try to clarify the sections about cubemaps (#296) 
* Try to clarify the sections about cubemaps

* fix typos and spelling

* don’t mention filament’s APIs by name
 2018-09-24 12:54:22 -07:00
Romain Guy
234dbaf00b Clarify IBL evaluation steps 2018-09-19 18:50:48 -07:00
Mathias Agopian
670d9986f3 fix typo and improve language in important sampling doc (#271) 2018-09-19 10:44:26 -07:00
Mathias Agopian
a14ceb5dca better explanation of the Jacobian used in importance sampling 2018-09-18 22:57:54 -07:00
Mathias Agopian
0f5e501dda Add images illustrating IBL prefiltering errors. (#268) 2018-09-18 19:08:21 -07:00
Mathias Agopian
df0594872e rewrite IBL prefiltering documentation 2018-09-18 14:45:47 -07:00
Mathias Agopian
cb88609015 fix @romainguy comments and improve equations 2018-09-18 14:45:47 -07:00
Mathias Agopian
d3e6fa1005 WIP: better explication of the “split-sum” 
DO NOT MERGE
 2018-09-18 14:45:47 -07:00
Romain Guy
e4c9fd2ac1 Fix documentation typos 2018-09-18 10:33:40 -07:00
Romain Guy
41d70cb30a Fix anisotropy BRDF on mobile (#245) 
mediump computations are not enough for certain roughness values.
 2018-09-13 18:31:08 -07:00
Romain Guy
cc102be69f Fix docs typo 
Closes #228
 2018-09-10 10:19:16 -07:00