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42 Commits

Author SHA1 Message Date
Patrick Walton 4cbc2a8800 Add partial support for clip paths in the SVG demo. 
At the moment, this only works when antialiasing is off.
 2017-11-03 14:14:29 -07:00
Patrick Walton b9f6f13cec Stop going to the DOM every time we need the color of an SVG path 2017-10-31 14:50:15 -07:00
Patrick Walton 579528ebdc Remove one direct rendering pass from the multicolor XCAA path 2017-10-31 12:41:38 -07:00
Patrick Walton d65bfb7fb2 Show compositing time in the SVG demo 2017-10-31 12:35:24 -07:00
Patrick Walton 2604151521 Replace the multicolor (SVG) XCAA with a multipass compositing algorithm 2017-10-30 15:28:35 -07:00
Patrick Walton 0506365cc7 Fix blending in the text demo. 
As a nice added cleanup, this commit standardizes on the red channel for
all monochrome textures.
 2017-10-26 20:15:51 -07:00
Patrick Walton 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
Patrick Walton 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
Patrick Walton 562851fd6e Lint against long lines 2017-10-17 11:58:03 -07:00
Patrick Walton 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
Patrick Walton 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
Patrick Walton 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
Patrick Walton 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
Patrick Walton 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
Patrick Walton 7bbd02ed85 Send mesh libraries to the client in raw binary instead of Base64 and JSON 2017-10-02 16:31:54 -07:00
Patrick Walton 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
Patrick Walton e8135fbfe0 TSLint the demo 2017-09-28 14:34:48 -07:00
Patrick Walton 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
Patrick Walton 0e9a59088c Implement bare-bones support for debugging SVG meshes 2017-09-19 20:19:53 -07:00
Patrick Walton 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
Patrick Walton a21afa9bb7 Fix the interaction between the camera and SSAA in the SVG demo 2017-09-13 20:41:04 -07:00
Patrick Walton 6642cc7aa4 Limit how far the user can zoom the camera out 2017-09-13 13:30:26 -07:00
Patrick Walton d64a28c166 Beautify the timings display and make it work with the SVG and 3D demos 2017-09-13 11:56:40 -07:00
Patrick Walton 65eecbf071 Don't allow the user to zoom in so far that we run out of space in the glyph atlas 2017-09-12 22:32:18 -07:00
Patrick Walton f68da75c75 Implement SSAA for the 3D demo. 
This commit additionally refactors transforms to be resolution-independent as much as possible throughout all the demos.
 2017-09-12 19:43:43 -07:00
Patrick Walton 2c8c11b303 Get a bare-minimum benchmark up and running 2017-09-12 12:40:14 -07:00
Patrick Walton 7d3afa0e74 Initially zoom the SVG to fit 2017-09-11 17:56:37 -07:00
Patrick Walton 43513da957 Add a simple model of the Mozilla Monument to the 3D scene 2017-09-09 00:04:35 -07:00
Patrick Walton c36896e337 Implement path stroking using the FreeType stroker. 
I'm not too happy with this, as I discovered a segfault in FreeType that doesn't give me confidence
in this as a solution for the long term. Additionally, this exposes the problems in the partitioner
with lack of winding fill rule, proper handling of self-intersections, and splitting of paths at
their extrema. (I believe these problems should be fairly straightforward to handle, but we just
don't handle them yet.)
 2017-09-08 16:50:27 -07:00
Patrick Walton 57374e9f30 Add all four sides of the Mozilla Monument to the 3D demo 2017-09-07 19:01:55 -07:00
Patrick Walton e34ca3d3e4 Stub support for multiple text frames 2017-09-07 16:13:55 -07:00
Patrick Walton 82d2f076d7 Add basic subpixel AA support for SSAA. 
No LCD filter is implemented yet, so the color fringing is currently fairly extreme.
 2017-09-06 16:32:11 -07:00
Patrick Walton 4b7ac0182c Implement basic working 3D support 2017-09-05 19:47:19 -07:00
Patrick Walton 7360a41a60 Factor camera logic into a separate object in preparation for the 3D demo 2017-09-02 12:14:10 -07:00
Patrick Walton 632202e5eb Implement a basic mesh debugger 2017-09-01 22:29:05 -07:00
Patrick Walton 1eb1bb5343 Stub a mesh debugger app 2017-09-01 18:11:44 -07:00
Patrick Walton 982c97771c Get the 3D view rendering something 2017-08-31 19:19:26 -07:00
Patrick Walton f182686ba8 Do some more refactoring in preparation for the 3D view 2017-08-31 17:08:22 -07:00
Patrick Walton e448ba7b30 Switch from ES6 interpolation to Handlebars and add a simple landing page 2017-08-30 23:25:58 -07:00
Patrick Walton d6767219ff Automatically load some built-in fonts and SVGs 2017-08-30 19:48:18 -07:00
Patrick Walton 58b558de64 Make the demo UI less cluttered 2017-08-30 17:01:28 -07:00
Patrick Walton 8d6636b1cf Add `-demo` to the SVG and text demo files 2017-08-29 18:57:43 -07:00
Renamed from demo/client/src/svg.ts (Browse further)