08e2e6eb06
Convert Psychopath over to use new RMath library.
2022-07-15 21:42:35 -07:00
a84da943d0
RMath: implement transform composition.
2022-07-15 17:51:57 -07:00
5535775006
RMath: implement Bool4 type.
2022-07-15 15:20:44 -07:00
fa7be4e58c
RMath: change fallback Float4 to be a tuple-struct.
2022-07-15 00:49:37 -07:00
a93a3f09da
RMath: implement cross product and bring back some unit tests.
2022-07-15 00:39:14 -07:00
42cd282c47
RMath: implement transforms for Vector, Point, and Normal.
2022-07-14 23:23:22 -07:00
d8e1437db1
RMath: implement vector-matrix multiplication.
2022-07-14 19:02:08 -07:00
c398387b55
Implement dot products and 3x3 matrix inversion.
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Both precise and fast versions. But untested, so might be
incorrect!
2022-07-14 15:30:30 -07:00
8a695a7694
Some shuffling of the math sub-crate's organization.
2022-07-14 12:31:32 -07:00
732dee958e
Remove Mat3x3 from math3d lib.
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It was an extraneous abstraction.
2022-07-14 00:33:38 -07:00
658e4746ca
Start work on new linear algebra library.
2022-07-13 18:54:44 -07:00
e0ee0d6dff
Change to using a dedicated affine transform type.
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This lets certain operations, especially matrix inversion, be
quite a bit faster. And we don't need anything beyond affine
transformations anyway.
2021-05-14 13:30:28 -07:00
e6f9af9336
Update to latest glam.
2021-05-14 12:22:46 -07:00
89fc80b99b
Update to the latest version of sobol_burley.
2021-05-14 11:30:48 -07:00
63d661f8ce
Update sobol_burley dependency.
2021-05-11 20:17:51 -07:00
7063c406dd
Fix minor syntax warning.
2021-05-11 13:38:11 -07:00
706902dc8e
Move sobol crate outside of Psychopath into its own repo.
2021-05-11 13:35:17 -07:00
70fba19361
Update Owen scramble hash to the latest.
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From https://psychopath.io/post/2021_01_30_building_a_better_lk_hash
2021-05-08 12:22:56 -07:00
b337e2cb20
Update dependencies. No functional change.
2021-05-08 12:21:04 -07:00
87859f5258
Fixed an issue with the Owen scramble hash.
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Thanks to a tip from Matt Pharr.
2021-03-30 15:59:55 +09:00
f9deb9afb6
Fix really bad bug with SIMD usage in the Sobol sampler.
...
Wasn't using the bit shifting instructions the correct way. SSE
instructions are very non-obvious...
2021-03-30 14:53:41 +09:00
42eda24514
Sobol sampler: get rid of unused alternative direction numbers.
2021-01-25 21:50:31 +09:00
c48839d5f3
An even better Owen scrambling hash.
2021-01-23 00:55:54 +09:00
c32281b04a
Significantly better Owen scrambling hash.
2021-01-13 22:25:16 +09:00
105d6e52b5
Add basic benchmark to Sobol sampler.
2021-01-10 00:20:22 +09:00
285f714d02
Switch to a significantly better LK hash.
...
With just one round, this hash is better than the previous one with
two rounds. And at 2-3 rounds it seems to be just as good quality
as a slow, per-bit hashing approach, which I've been using as
ground-truth for testing.
2021-01-04 15:16:04 +09:00
776a2c1456
Add PR template explaining that contributions aren't currently accepted.
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Ideally I would just disable PRs on the repo, but github doesn't
currently allow that.
2020-12-31 13:00:46 +09:00
16e5f539ea
Update to latest openexr-rs.
2020-12-31 12:25:22 +09:00
d19305d23b
Update sobol sampler to properly credit Brent Burley.
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I was just waiting for his paper to get published, which happened today!
2020-12-30 21:44:25 +09:00
3d85ce8005
Consolidate all of the compact value storage formats into one crate.
2020-12-30 20:41:56 +09:00
6586b38dc9
Use an external crate for fast approximate math functions.
2020-12-26 10:03:35 +09:00
4cfc051260
Change overall project license to GPLv3.
2020-12-26 09:20:55 +09:00
646e6a4e18
More readme updates.
2020-12-21 18:55:00 +09:00
73cf201bf6
Update readme.
2020-12-21 18:42:23 +09:00
6d6904a615
FLuv32: increase dynamic range, and decrease precision.
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This still exceeds the precision of LogLuv, but lets us match its
dynamic range.
2020-09-22 11:06:40 +09:00
9cf5ebdf91
Cleaning up the code in fluv32 a bit.
2020-09-21 11:54:14 +09:00
066105b20a
Fluv32: slightly tweak the u/v scaling constants.
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This allows perfect representation of E (equal energy spectrum).
It's not important from a perceptual standpoint, but it provides
a simple way for Psychopath to represent E when needed for other
purposes.
2020-09-21 09:45:47 +09:00
05f9621ac5
Added a FloatLuv decode function to decode to Yuv instead of XYZ.
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This is useful because it's super fast, and chromaticity lookups
are typical for spectral upsampling anyway, so this will likely
enable cutting out a bunch of unecessary intermediate calculations.
2020-09-20 15:16:20 +09:00
0ba1acc42d
Add oct32 encode_precise()
function.
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This is significantly slower than `encode()`, but a little more precise.
2020-09-20 14:36:50 +09:00
8c738b2f39
Use FloatLuv32 in Psychopath for encoding XYZ colors.
2020-09-20 11:04:37 +09:00
161e47fc44
Clean up oct32norm code a bit.
2020-09-20 10:37:26 +09:00
3eff608493
More FloatLuv32 optimizations, and general code cleanup.
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This gives another little speed boost to decoding, but gives a
massive (over 3x) speed boost to encoding.
2020-09-20 10:07:02 +09:00
f4ef11f9f3
Fix some names in fluv32 error messages.
2020-09-20 03:02:56 +09:00
8dee53d1fc
Additional optimization to fluv32 decoding.
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Tiny change but with a nice speed bump.
2020-09-20 02:35:37 +09:00
f20567247d
Go all in with the fluv32 naming.
2020-09-20 02:02:35 +09:00
cda9156af8
Optimize FloatLuv decoding.
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Speed ups of over 20%.
2020-09-20 01:43:36 +09:00
03bedcb594
Cleanup, tweaks, and better documentation for the 32-bit Luv format.
2020-09-19 23:57:59 +09:00
485da9f918
Add a new 32-bit Luv color format.
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It's based on the SGI LogLuv format, but using a floating point
instead of log encoding for the luminance.
2020-09-19 19:51:40 +09:00
66e9abe66e
Make signed48 trifloat encoding also a byte array.
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Same reason as for the unsigned40 encoding in an earlier commit.
2020-09-19 12:22:51 +09:00
49c97bf0fe
Cleaned up the signed48 trifloat code.
2020-09-19 08:55:35 +09:00