9d93cebca6
Stop using multiple render targets.
...
We don't need them anymore, so let's lower our hardware requirements!
2017-10-20 22:04:53 -07:00
048c261f6c
Add a working experimental implementation of XCAA for SVG.
...
This has known performance problems and artefacts due to working at
sample level only, but it's a decent first cut.
2017-10-20 19:41:18 -07:00
9c470e77c1
Make macOS font rendering not depend on FreeType
2017-10-20 12:10:57 -07:00
a523d71e3c
Stop leaking buffer textures
2017-10-18 19:47:44 -07:00
03b4ec2cc6
Stop leaking VAOs
2017-10-18 19:16:56 -07:00
70201bb29c
Draw distant glyphs as prerendered images in the 3D demo.
...
This has known performance problems, but it's a good first cut.
2017-10-18 16:19:19 -07:00
024b00e479
Decouple text renderers from the text demo's layout
2017-10-17 13:37:36 -07:00
d66bff9768
Remove useless null check
2017-10-17 12:11:49 -07:00
32de1d3441
Decouple text renderers from HTML canvas elements.
...
This allows for offscreen rendering of text.
2017-10-17 12:10:20 -07:00
562851fd6e
Lint against long lines
2017-10-17 11:58:03 -07:00
9278a4e0e3
Move the text rendering and atlas code out of the text demo so that it
...
can be reused elsewhere
2017-10-17 11:54:13 -07:00
03ee672787
Separate the GPU rendering component of views from the view objects
...
themselves in the demo.
This (mostly) enables rendering outside a view.
2017-10-16 22:26:25 -07:00
976b924842
Decouple mesh-specific data from GL-context-wide data in the demo
2017-10-16 16:48:02 -07:00
81787f4750
Remove `MonochromeDemoView`
2017-10-16 16:11:00 -07:00
7a0ade99e2
Support subpixel AA in the benchmark
2017-10-16 16:08:05 -07:00
30356400fd
Merge pull request #35 from Bobo1239/master
...
Fix demo client compilation on Windows
2017-10-16 15:04:00 -07:00
cc16158a91
Decouple antialiasing strategies from views in the demo
2017-10-16 13:36:22 -07:00
d8713f214c
Use the Rust benchmarking algorithm for less noisy results
2017-10-15 14:37:44 -07:00
dec99769f1
Fix demo client compilation on Windows
2017-10-15 23:23:09 +02:00
314185684c
Implement stem darkening and split ECAA into ECAA and MCAA.
...
We now implement stem darkening (also known as font dilation) like
macOS and FreeType under certain configurations. This pushes out font
outlines along their normals slightly in order to make small text easier
to read. This is especially important when performing gamma correction,
as otherwise text can end up too light.
Because the stem darkening is implemented in the vertex shader, it can
easily break the mesh. Therefore, I needed to implement a new rendering
mode that does not use the mesh. It's a variant of ECAA, and for
clarity's sake I've renamed the related antialiasing methods:
* MCAA stands for "mesh coverage antialiasing" and is the new name for
what was called "ECAA" prior to this patch.
* ECAA now stands for "edge coverage antialiasing". It does not use the
mesh but rather computes winding numbers from scratch for every pixel.
Surprisingly, despite being worse asymptotically, this usually ends up
being faster than MCAA at small font sizes, presumably because there are
fewer vertices to transform.
* XCAA, "exact coverage antialiasing" is a generic term that refers to
both ECAA and MCAA. References to ECAA have been changed to XCAA as
needed.
2017-10-15 13:28:49 -07:00
3352f869f0
Remove Pathfinder 1 now that Pathfinder 2 supports all its features and
...
more
2017-10-06 20:03:59 -07:00
c8284e18b2
Mention advanced font rendering features
2017-10-06 20:03:18 -07:00
c2368bb71e
Rewrite the README.
...
Closes #26 .
2017-10-06 19:55:28 -07:00
1846ebd861
Use sRGB color textures where available
2017-10-06 19:18:34 -07:00
2a236319d4
Use regular VBOs instead of textures to store vertex positions for ECAA.
...
This improves performance at small font sizes a bit by reducing vertex
shading load.
2017-10-06 16:42:51 -07:00
6a7c013e61
Make the hints a uniform instead of a buffer texture.
...
Saves a good bit of memory traffic during vertex shading.
2017-10-05 19:14:52 -07:00
28837f72a6
Fetch and transform fewer vertices in the ECAA cover shader
2017-10-05 13:30:32 -07:00
d4c7fa74bd
Add a feature to save benchmark data as CSV
2017-10-05 11:46:53 -07:00
b6a60ef987
Make FreeType no longer a dependency of `path-utils`
2017-10-04 19:03:38 -07:00
8de1970682
Implement stroking ourselves, and rename `PathSegment` to `PathCommand`.
...
This makes Pathfinder no longer use the FreeType stroker.
2017-10-04 18:57:30 -07:00
22d0eb7b24
Fix file headers in shaders/
2017-10-03 15:32:03 -07:00
157292175b
Use instanced rendering in the 3D demo.
...
This massively decreases the load time and memory usage in exchange for more draw calls.
2017-10-03 15:24:56 -07:00
b631fec80f
Cache font mesh libraries on the server
2017-10-02 19:58:38 -07:00
7bbd02ed85
Send mesh libraries to the client in raw binary instead of Base64 and JSON
2017-10-02 16:31:54 -07:00
0bbcf8f1a0
Stop sending path index ranges to the demo client.
...
They're unused.
2017-10-02 15:50:34 -07:00
fed528025d
Stop sending glyph metadata to the demo client.
...
It's unused.
2017-10-02 15:45:56 -07:00
092b46e056
Reenable early Z optimizations
2017-10-02 15:36:39 -07:00
f3f893302a
Introduce a simple file format for serializing meshes, and use it in the demo
2017-10-02 15:17:21 -07:00
475f5dca71
Introduce a new mesh library abstraction for holding meshes.
...
Simplifies the server code and allows avoiding copying indices all the time.
Closes #29 .
2017-10-02 14:03:56 -07:00
8c6110a388
Remove the duplicated de Casteljau subdivision code in
...
`partitioner::geometry`
2017-10-02 11:45:34 -07:00
705274997d
Remove the now-obsolete path legalizer
2017-10-02 11:40:11 -07:00
60ff71be84
Add an experimental implementation of macOS-like font dilation
...
Following Apple's earlier terminology, this is exposed as "strong"
subpixel AA.
2017-09-29 22:12:24 -07:00
99f6f2a104
Snap stems up to the nearest pixel when hinting
2017-09-29 18:02:33 -07:00
190c9fb35f
Tweak the maximum and minimum zoom parameters for the text demo
2017-09-29 17:00:34 -07:00
e78d7ed575
Recursively approximate cubic Béziers with quadratics to an error bound.
...
Gets the tiger rendering properly, as far as I can tell.
2017-09-29 16:30:17 -07:00
613bc7c29d
Don't start subdividing active edges until we're sure an entire B-quad
...
will be emitted.
Otherwise it messes up the parity.
Fixes the bottom curve of the lowercase "p" in Open Sans when rendered
with Loop-Blinn.
2017-09-29 13:25:19 -07:00
08b9afdca9
Implement subpixel glyph positioning in the text demo
2017-09-29 11:58:16 -07:00
7e4308d52e
Key glyphs in the atlas off "glyph keys" rather than raw glyph IDs
2017-09-28 16:02:08 -07:00
37a88dfcd9
Use the Inter UI font in the demo
2017-09-28 15:23:52 -07:00
e8135fbfe0
TSLint the demo
2017-09-28 14:34:48 -07:00
6217577674
Stop generating so much garbage during mesh expansion.
...
Avoids a slow script dialog in the 3D demo.
2017-09-28 10:47:16 -07:00
1675944dfb
Rewrite the text run and glyph store classes for simplicity
2017-09-28 09:48:05 -07:00
17b34685a1
Factor mesh expansion out of the glyph store
2017-09-26 18:55:47 -07:00
b6c6c70ef0
Benchmark the server-side partitioning
2017-09-26 15:38:50 -07:00
7f84e98e6e
Avoid a bit of code duplication in `ECAAStrategy`
2017-09-26 13:35:41 -07:00
70ab2d55f3
Don't count resolution time in the benchmark.
...
This means that users of Pathfinder will have to accept floating point
textures in order to get the advertised performance, but as they're well
supported on all modern GPUs I don't consider that much of a problem.
2017-09-26 13:35:03 -07:00
6b0c215148
Get ECAA working in the benchmark
2017-09-26 13:32:22 -07:00
1c138cc543
Display benchmark results in a dialog box instead of on the console
2017-09-25 19:56:12 -07:00
c37fd1f1e8
Ignore intersections beyond the sweep line.
...
Improves the outer stroke of the tiger.
2017-09-25 19:15:36 -07:00
93de8383f9
Replace the implicitization algorithm for curve intersection with a
...
simpler one based on binary search and the quadratic formula.
This does a better job avoiding floating point error and improves the
rendering of the tiger.
2017-09-25 18:51:02 -07:00
2a906569e5
Emit B-quads around both self-intersecting active edges.
...
Improves one of the whiskers in the tiger.
2017-09-25 12:58:42 -07:00
3efca89235
Don't call `Font.toArrayBuffer()` in the mesh debugger, as that's really slow
2017-09-24 11:49:15 -07:00
2197896c4f
Keep the camera and view in a sensible state when changing fonts in the text demo
2017-09-23 13:09:45 -07:00
db32009d7b
Create fewer useless B-vertices
2017-09-22 19:15:58 -07:00
8c518deebe
Do a better job of approximating cubic Bézier curves with quadratics
...
This still isn't great, but it's a lot better than the old approximation, which was just bogus.
2017-09-22 17:15:19 -07:00
2039051f01
Remove bogus fast path that tried to avoid active edge order calculation.
...
It was causing us to miss a bunch of crossings in the tiger whiskers.
2017-09-22 13:42:20 -07:00
88f1d3f108
Fix de Casteljau subdivision when a curve has two inflection points
2017-09-22 13:40:41 -07:00
be1b100826
Split B-quads whose curves' convex hulls intersect in most cases.
...
Avoids some rendering artefacts with Loop-Blinn, improving the tiger.
2017-09-21 22:47:00 -07:00
a126e1248e
Don't structure fills around the even-odd rule.
...
Improves self-intersecting paths under the winding rule.
2017-09-21 14:54:04 -07:00
4ac11e9010
Switch to a more robust intersection algorithm based on implicitization
2017-09-20 21:23:56 -07:00
dafb18fd1d
Allow custom SVGs to be opened in the mesh debugger
2017-09-20 12:01:46 -07:00
b732878532
Encapsulate the file picker code into a view class.
...
This will allow the mesh debugger to use it.
2017-09-20 11:51:20 -07:00
914179763d
Improve the mesh debugger in various ways
2017-09-19 22:27:31 -07:00
0e9a59088c
Implement bare-bones support for debugging SVG meshes
2017-09-19 20:19:53 -07:00
e7a6861846
Factor the SVG loading functionality out of the SVG demo.
...
This allows the mesh debugger to use it.
2017-09-19 18:04:42 -07:00
a5b0e9bf9a
Allow different glyphs to be selected in the mesh debugger
2017-09-19 17:36:12 -07:00
b1cf4b9760
Merge pull request #32 from Manishearth/wasd
...
demo/client: Make WASD composable
2017-09-19 16:35:25 -07:00
9a0fa96d4f
demo/client: Make WASD composable
...
Currently movement works in the direction of the latest key pressed.
Moving diagonally is not possible, and if you are pressing two keys
and release one, movement stops instead of switching over.
This keeps track of the key press state and updates the movement delta
accordingly, leading to much more natural/pleasant WASD navigation.
Note than onKeyDown is called multiple times when you press and hold,
so we must keep track of this state ourselves.
2017-09-19 16:34:41 -07:00
83cfb1d9d5
Make glyphs transparent.
...
Avoids cutting off the bottom of the "g" in the text demo.
2017-09-19 13:57:56 -07:00
72d9ad7de0
Handle path self intersection
2017-09-19 11:43:39 -07:00
22d2a6590b
Blend when compositing in the text demo
2017-09-19 11:42:37 -07:00
d644f1b6a6
Implement curve-curve and curve-line intersection, untested as of yet
2017-09-18 21:00:34 -07:00
dbd83d17ef
Implement the winding fill rule for real
2017-09-18 15:34:36 -07:00
e5f9b56a1d
Implement the winding fill rule
2017-09-18 14:19:28 -07:00
820c4bec18
Round canvas sizes to properly handle fractional device pixel ratios.
...
Fixes nasty artefacts seen on Windows HiDPI screens with certain system settings.
2017-09-17 10:06:53 -07:00
45927f6299
Add a CSS spinner to the HTML templates.
...
This will allow us to make loading a nicer experience.
Source: http://tobiasahlin.com/spinkit/
2017-09-16 10:41:25 -07:00
5d267cc2c8
Take the xMin/left values of the glyphs' bounds into account when determining their pixel rects.
...
This prevents glyph images from "bleeding" into each other horizontally.
2017-09-15 15:57:32 -04:00
375dbe7ab9
Make sure scrollbars don't show up on demo and tool pages
2017-09-15 09:40:26 -07:00
445d00fed3
Prevent the user from flipping the camera upside down in the 3D view
2017-09-15 09:31:19 -07:00
82f876c4ff
Take `WheelEvent.deltaMode` into account when panning
2017-09-15 09:22:56 -07:00
a5d0df6a96
Implement simple collision detection in the 3D demo
2017-09-14 18:48:55 -07:00
b48b256ab3
Actually reverse indices for early Z!
...
2x performance improvement. I feel silly.
2017-09-14 17:20:54 -07:00
42151cc334
Fix text positioning and improve performance in the 3D demo.
...
This implements a simple form of software backface culling to reduce vertex shading load.
2017-09-14 15:16:06 -07:00
0087c1ed50
Add SSAA support to the benchmarking tool
2017-09-13 21:41:33 -07:00
299bcd685e
Fix scaling of the benchmark
2017-09-13 21:03:10 -07:00
adf960bafe
Make the GitHub corner stay in place when zooming and not widen the pages
2017-09-13 20:59:19 -07:00
8b34fa5461
Enable SSAA by default in the SVG demo
2017-09-13 20:45:48 -07:00
a21afa9bb7
Fix the interaction between the camera and SSAA in the SVG demo
2017-09-13 20:41:04 -07:00
5c45b6f94e
Prevent the user from scrolling the text out of view
2017-09-13 18:39:19 -07:00
6642cc7aa4
Limit how far the user can zoom the camera out
2017-09-13 13:30:26 -07:00
Patrick Walton