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Commit Graph

49 Commits

Author SHA1 Message Date
Olivier Guyot
6c46eb1dd0 Webgl / add support for a rotation parameter in LiteralStyle 
The ShaderBuilder can now take a rotation expression.
 2019-12-20 17:39:40 +01:00
Olivier Guyot
43010c8934 Webgl / return 0 if doing renderTarget.read outside of data width/height 
This would happen when WebGLPointsLayerRenderer.forEachFeatureAtCoordinate
is called on "warped" worlds at -360/+360 degrees, and may produce false
positives.
 2019-11-04 09:31:38 +01:00
Olivier Guyot
2a2783c086 ShaderBuilder / better handling of strings variables/attributes 
Now values which are not mentioned in the style are still added to
the string literals mapping.

Also an error will be thrown if a style references a missing variable.
 2019-10-28 15:21:44 +01:00
Olivier Guyot
acf973751b Webgl / added time and resolution as default uniforms 
Also added the `zoom` and `resolution` style operators
 2019-10-25 14:55:44 +02:00
Olivier Guyot
e843b2cfc0 Expressions / adaptation and cleanup after stretch operator removal 
The examples have been fixed as well.
 2019-10-25 14:55:44 +02:00
Olivier Guyot
d643951a74 Shader Builder / add option to generate hit detection shaders 2019-10-25 14:55:44 +02:00
Olivier Guyot
a39f751981 Shader Builder / adapt logic & test to the new expression types 
Also fixes a sneaky bug where the two last texture coordinates were inverted.
 2019-10-25 14:55:44 +02:00
Olivier Guyot
31dae929f5 ShaderBuilder / adapt logic & tests to new expressions module 2019-10-25 14:55:44 +02:00
Olivier Guyot
d837166a1b Literal Style / add new math operators 2019-10-22 23:17:00 +02:00
Olivier Guyot
c659c05de8 ShaderBuilder / fix stretch operator GLSL expression 2019-10-22 23:17:00 +02:00
Olivier Guyot
485ade42b5 Literal Style / add support for color interpolation 2019-10-22 23:17:00 +02:00
Olivier Guyot
85c3aae454 ShaderBuilder / add support for color interpolation in parse 2019-10-22 23:17:00 +02:00
Olivier Guyot
a29fc016f5 ShaderBuilder / formatColor/Array utilities now output vecX(...) 2019-10-22 23:17:00 +02:00
Olivier Guyot
19eadaea24 Shader Builder / add type checking in expressions parsing 
All expressions will now be type checked before actually being parsed.
 2019-10-22 23:17:00 +02:00
Olivier Guyot
b8e8d30df0 Shader Builder / add utilities for checking an expression type 
Type checking is done either against a literal value (number, string...)
or against the operator in case of an expression.

Sometimes it is not possible to infer only one type, for example
the value 'transparent' could either be a color or a string. This
is covered by the fact that all operators expect exactly one type
for their arguments.
 2019-10-22 23:17:00 +02:00
Olivier Guyot
f43637cc33 Shader Builder / support strings in formatColor 2019-10-22 23:17:00 +02:00
Olivier Guyot
a0b271a812 Literal Style / add support for variables in the style 
These variables are accessed using the `var` operator, and are meant
to be mutated directly in the style object. When doing so,
the new value will always be used for the render.

This is intended to be used for modifying the style through external
parameters such as an input field, a slider, mouse position etc.
 2019-10-22 23:17:00 +02:00
Olivier Guyot
94b8cf6af3 Webgl / add support for a time operator in literal styles 
This required adding `u_time` as one of the default uniforms provided by the
webgl helper.
 2019-10-22 23:17:23 +02:00
Olivier Guyot
0c0c8c5d56 Literal Style / add support for a filter property 2019-10-22 23:17:00 +02:00
Olivier Guyot
e38250ee14 ShaderBuilder / add fragment discard expression in shader params 2019-10-22 11:39:30 +02:00
Olivier Guyot
9ee93cd2cf ShaderBuilder / refactoring to use an actual builder pattern 
There is now a ShaderBuilder class with chainable methods
to specify more easily the contents of the final shaders.
This is to avoid passing around large objects to different functions,
and allow for a richer API.

The documentation has also been corrected and clarified.
 2019-10-22 11:12:06 +02:00
Olivier Guyot
28d157af56 Shader builder / add circle and triangle shapes for symbols 2019-09-26 16:30:19 +02:00
Olivier Guyot
9b3a9b5eca Shader builder / add logic for transforming a style into shader params 
This was previously handled by the WebGLPointsLayer class, but is now
externalized and tested.
 2019-09-26 16:20:35 +02:00
Olivier Guyot
d5caabbbfc Shader builder / add basic expression parsing 
Only a handful of expressions for now, very loosely based on the
mapbox style spec. Also only work on numerical values.
 2019-09-26 16:20:35 +02:00
Olivier Guyot
34572da17b Webgl shader builder / expanded functionality 
Now takes in a custom object with attributes, uniforms etc.
The WebGLPointsLayer uses this to handle image icons.
 2019-09-25 17:22:36 +02:00
Olivier Guyot
9e55a8b2f0 Webgl / linting & test fixes 2019-09-25 17:22:36 +02:00
Olivier Guyot
076b674d6f Webgl helper / easier utility for binding attributes 
also a bit of improvement on the doc
 2019-09-24 19:10:07 +02:00
Olivier Guyot
a6b8d920b7 Webgl / add a fixed fragment shader builder for symbols 2019-09-24 15:49:07 +02:00
Olivier Guyot
4de0c0b082 Webgl / add a very simple vertex shader builder utility 
This only allows including hardcoded values in the shader,
and only for symbols.
 2019-09-24 15:43:26 +02:00
Olivier Guyot
c48350b666 Webgl buffer / add utility getSize function 
Saves checking whether the buffer was initialized with
an array already
 2019-08-30 10:38:02 +02:00
Olivier Guyot
e852294938 Webgl / improve reading of render targets data 
Now two methods are available: `readAll` and `readPixel`,
and the data from the render target is not re-read every time unless
`clearCachedData` is called.
 2019-06-28 09:12:20 +02:00
Olivier Guyot
6224d749c4 WebGL / Introduced the WebGLRenderTarget class 
This utility class simplifies rendering to a texture & reading the
results of the render.

It also allows clearing its content before a new render.
 2019-06-28 09:12:20 +02:00
Olivier Guyot
f25a16d90c Webgl helper / rework create texture utils 
Now only one util is available: `createTexture`, which
is tested and allows binding an image and reusing an existing texture.
 2019-06-28 09:12:20 +02:00
Olivier Guyot
9ae7256048 Merge pull request #9562 from jahow/webgl-worker 
Optimize the WebGL points renderer using a worker
 2019-06-06 08:48:29 +02:00
Olivier Guyot
2412fe0211 Webgl / remove handling of element_index_uint extension 
From now on we will assume this extension is always enabled.

An error message have been added in the unlikely scenario of a lack
of support.
 2019-06-05 14:46:15 +02:00
Frederic Junod
91d49b26b5 Round the transform values in makeProjectionTransform test 2019-06-04 14:00:39 +02:00
Olivier Guyot
33d007ce01 Webgl buffer / now stores data in typed arrays 
The `WebGLBuffer` class API was changed in order to allow populating
the internal array in different ways.
 2019-06-01 15:33:31 +02:00
Tim Schaub
deb00f20fe Include full filename in import specifier 2019-05-29 08:51:10 -06:00
Olivier Guyot
c705775d75 Linting 2019-05-15 10:20:31 +02:00
Olivier Guyot
5d2b7fe4bb Webgl points / use the helper ton compute the projection transform 
The `WebGLHelper` class now provides a `makeProjectionTransform` method
that updates a transform to match the projection for a given frame state.

This also means that the WebGLHelper does not set the projection matrix
uniform anymore, this is the responsibility of the renderer as
the rendered coordinates will not be in world space from now on.
 2019-05-15 10:18:47 +02:00
Olivier Guyot
3e2e45ce6d Webgl helper / add the possibility to use transforms as custom uniforms 
These will be translated into 4x4 matrices in GLSL.
 2019-05-15 10:18:47 +02:00
jahow
6b82cf0b84 Simplified the API of WebGLHelper 
Now the shader and program caches are simply arrays of native WebGL created objects.
The WebGLHelper simply takes the sources of the frag and vert shader and produces a program.

This removes 2 classes & reduces the general verbosity of the API.

Also a `getShaderCompilationErrors` was added on `WebGLHelper` to help debug GLSL errors.
 2018-11-19 13:11:23 +01:00
Olivier Guyot
40d5f4efe7 Added unit tests for the WebGLHelper class 2018-11-16 14:05:06 +01:00
Olivier Guyot
72cf7b13fa removed existing webgl rendering unit tests 2018-11-16 14:05:04 +01:00
Tim Schaub
ad62739a6e Use blocked scoped variables 
In addition to using const and let, this also upgrades our linter config and removes lint (mostly whitespace).
 2018-01-12 00:50:30 -07:00
Tim Schaub
7f47883c48 Transformed 2017-12-12 06:53:18 -07:00
Tim Schaub
a3e3e99baa Get rid of useless test exports 2017-08-17 15:16:58 -04:00
Tim Schaub
ed5dbd1293 Put test requires on top 2016-08-08 09:58:11 -06:00
Éric Lemoine
57db47ac18 Rename ol.structs.Buffer to ol.webgl.Buffer 
The Buffer class is WebGL specific, and it's not really a "data structure", in the pure sense of the term.
 2014-11-21 15:48:31 +01:00