04e8a6ca73
Added a Rust port of Leonhard Grünschloß's Sobol sampler.
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The Halton sampler appears to be better, but it was fun to add
this anyway!
2017-05-11 23:56:12 -07:00
b698a52f6c
Split some more things out into sub-crates.
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Also translated the Halton generator to rust and made it a crate
where the code is generated by a build.rs file.
2017-05-11 22:57:59 -07:00
96db00b10a
Refactored some parts of Renderer to take up less memory and be faster.
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Specifically, LightPath is now significantly smaller, and
resultingly faster to process.
Also finally fixed the bug where without light sources the light
from the sky wouldn't affect surfaces.
2017-05-11 20:23:19 -07:00
a3a19e53ef
Some misc small optimizations.
2017-05-11 01:22:37 -07:00
dcf25b92af
Fiddled with BVHNode to make it 32 bytes instead of 40 bytes.
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This helps reduce the total size of BVHs since both BBoxes and
and BVHNodes are now 32 bytes and can be properly packed together.
2017-05-08 19:47:10 -07:00
d8e31750a8
Small optimization in BVH traversal.
2017-04-26 01:03:16 -07:00
8b0c422630
Small optimization in BBox intersection and bugfix in BBox4 intersection.
2017-04-26 00:28:43 -07:00
c92a8c4da0
During BVH construction, merge BBox time samples based on a threshold.
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If the average surface area of all the time samples is close enough
to the surface area of their union, just take the union and use that.
This both makes the BVH smaller in memory (time samples don't
propigate up the tree beyond their usefulness) and makes it
faster since traversal can avoid interpolating BBoxes when there's
only one BBox for a node.
2017-04-23 23:15:31 -07:00
b135e8beb8
Fixed bug in new BVH4 traversal code.
2017-04-22 22:32:36 -07:00
a940630a27
Reduced max bvh tree depth.
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Reduced from 64 to 42. This still allows each BVH to hold 4.4
trillion elements, but it guarantees that the accel ray's
traversal bitstack can accommodate at least two nested max-depth
trees.
2017-04-22 12:51:35 -07:00
0cbf851451
Fixed a commandline argument that was broken.
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Also removed a redundant statistics printout.
2017-04-22 12:50:28 -07:00
fdf2b4babf
Print stats for BVH and BVH4 traversal, and working on speeding up BVH4 traversal.
2017-04-22 11:18:29 -07:00
597bcf0518
Sped up splitting rays by direction.
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Turns out the is_sign_positive() method is slower than a simple
comparison.
2017-04-22 11:15:17 -07:00
8b14e46bc1
Added more detailed render stats.
2017-04-22 10:31:27 -07:00
7884cff604
Added unit tests for BitStack128.
2017-04-16 23:13:34 -07:00
725bbca6a1
Eliminated some unnecessary left drift in BVH4 code.
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IMO this is much easier to read.
2017-04-16 17:27:29 -07:00
92fd83a766
Actually using the None match arm in BVH4 traversal now.
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It seems to maybe be just a hair faster. But, also, it sets the
code up to try some more optimizations.
2017-04-16 17:22:51 -07:00
f93dde1810
Changed the BBox4 data layout to give a small speed boost.
2017-04-16 15:54:02 -07:00
2c4f103db5
Factored some calculations into the outer loop of BVH4 traversal.
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Provides a small but noticable speed boost.
2017-04-16 00:51:13 -07:00
7d5bda2a3b
Print newline before exit.
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Makes it easier to scan commandline history for multiple renders.
2017-04-14 23:22:38 -07:00
a6d8de43d7
Make BVH4 calculate and store its node count.
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Useful for debugging.
2017-04-14 22:14:52 -07:00
0296fd2d34
Fixed a bunch of problems that came up when running debug build.
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The worst offender was an obvious and nasty bug in the bitstack
implementation. Hooray for debug asserts!
2017-04-14 21:37:29 -07:00
44e3ee8b4b
Fixed nasty bug in BVH4 building.
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In practice it worked fine, but only by accident. NaN's were
being passed to the lerp_slice function, which led to the
correct result in this case but is icky and dependant
on how lerp_slice is implemented.
2017-04-14 20:25:12 -07:00
f8d47dc24a
Fixed some things for building with SIMD support.
2017-04-13 23:28:26 -07:00
7f761a9489
Added custom aligned allocations to MemArena.
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Used in BVH4.
2017-04-13 23:06:56 -07:00
8b1e3a3cdb
Added some dev printing info.
2017-04-13 22:50:47 -07:00
573c5da5ab
Got BVH4 working. Woo hoo!
2017-04-13 22:44:34 -07:00
53a14996c9
Completed first attempt at implementing BVH4.
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Completely untested, so almost certainly non-functional. But it
compiles!
2017-04-12 23:33:34 -07:00
e0c6dfbd76
Beginnings of BVH4 implementation.
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- Created a traversal-order table.
- Created a function to help index into that table.
2017-04-11 23:10:54 -07:00
a2d7f9e149
Added BBox4 and BVH4 types.
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BVH4 is just a skeleton (duplicated BVH) right now. But BBox4
is complete (pending testing).
2017-04-11 14:22:11 -07:00
c05bae2636
Created a BitStack128 type and added it to Ray.
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This will be used for BVH4 traversal.
2017-04-11 11:13:23 -07:00
f5ba119562
Switched to clap for command line argument parsing.
2017-04-11 10:15:32 -07:00
d9564bc005
Refactor and rework of BVH.
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The BVH building code is now largely split out into a separate
type, BVHBase. The intent is that this will also be used by
the BVH4 when I get around to it.
The BVH itself now uses references instead of indexes, allocating
and pointing directly into the MemArena. This allows the nodes
to all be right next to their bounding boxes in memory.
2017-04-10 23:41:38 -07:00
db3e4ad129
MemArena now slowly increases the size of each subsequent block.
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This seems to work more nicely than a fixed block size, because
it adapts to how much memory is being requested over-all. For
example, a small scene won't allocate large amounts of RAM,
but a large scene with large data won't be penalized with a
lot of tiny allocations.
2017-04-10 20:49:55 -07:00
70f715ec2d
MemArena now collects statistics about its usage.
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You can print out statistics about the main arena used in
Psychopath by passing the new --stats flag.
2017-04-10 18:34:08 -07:00
6623443e2e
Improved .psy file parsing error messages.
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Biggest improvement: it gives you line numbers. But also progress
on better descriptions.
2017-04-10 14:03:01 -07:00
d3b3a50a4d
LightTree and Assemblies use MemArena now.
2017-04-10 00:03:49 -07:00
c82c821b31
BVH and objects now use MemArena.
2017-04-09 23:33:36 -07:00
e9e202933f
Assembly type now partially uses MemArena.
2017-04-09 18:27:01 -07:00
fc15fa9192
World type uses memory arena now.
2017-04-09 17:56:06 -07:00
57aa9be496
First steps towards using the memory arena allocator.
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Changed Camera to us the memory arena allocator, and worked out a
bunch of stuff through doing that.
2017-04-09 17:31:17 -07:00
f6ffd8d30b
Fixed a typo in a comment.
2017-03-29 13:20:58 -07:00
7223f69151
Implemented a more efficient orthonormal basis function.
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Algorithm taken from the paper "Building an Orthonormal
Basis, Revisited" by Duff et al.
2017-03-29 13:19:51 -07:00
4a86c4122a
Laying some groundwork for a simple shading system.
2017-03-14 00:27:25 -07:00
114f11c583
Fixed bug in GTRClosure that was resulting in all NaN outputs.
2017-03-12 00:33:36 -08:00
0b05d364e4
Added GTR surface closure.
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Not tested yet, just a straightforward conversion from the C++
Psychopath codebase. So there are probably bugs in it from the
conversion. But it compiles!
2017-03-07 08:31:57 -08:00
f4445417dc
Reorganizing the module tree.
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Enough things had accumulated that it seemed to make sense to
group some stuff together. So here it is.
2017-02-14 00:14:08 -08:00
d504ca5e6a
Got DistantDiscLights working! Yay!
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This involved fixing a bug in PsychoBlend. It was including
translation in how it was transforming the sun lights' direction
vector.
2017-02-13 00:03:34 -08:00
3cbb816d4b
Added DistantDiskLight (a.k.a. sun light) parsing and data structures.
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Also created a proper World struct in the process, to store all
infinite-extent type stuff.
Note that I goofed and did a new rustfmt pass but forgot to
commit before making these changes, so there's a lot of
formatting changes in this too. *sigh*
2017-02-12 20:29:08 -08:00
746b3b0c1f
Replaced try!() macros with new ? operator.
2017-02-06 16:20:58 -08:00
