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Reworked the Webgl Heatmap layer & associated utilities #9041

Merged
merged 7 commits into from Dec 7, 2018
Merged

Reworked the Webgl Heatmap layer & associated utilities #9041

merged 7 commits into from Dec 7, 2018

Commits on Dec 7, 2018

  1. Webgl / do not enable missing attributes 

    Some expected attributes might not end up in the compiled shader. In this case, skip calling enableVertexAttrib
    @jahow
    jahow committed Dec 7, 2018
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  2. Webgl points layer / added callbacks for attributes 

    Now opacity, rotateWithView and tex coords can be set with callbacks per feature.
    @jahow
    jahow committed Dec 7, 2018
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  3. Simple handling of layer opacity in webgl points layer 

    Now the layer opacity is simply handled by a CSS property on the layer DOM element. As such it does not have to be
taken into account in shaders.
    @jahow
    jahow committed Dec 7, 2018
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  4. Webgl points / fix weird glitches by premultiplying alpha

    @jahow
    jahow committed Dec 7, 2018
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  5. Generally fixed the webgl heatmap layer 

    Things done:
- stay closer to the original rendering in canvas
- get rid of the intermediary blur step
- use the new callbacks in the webgl points renderer
- premultiply alpha in the last postprocessing step
    @jahow
    jahow committed Dec 7, 2018
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  6. Regenerate new test renders & remove the --ignore-gpu-blacklist flag

    @jahow
    jahow committed Dec 7, 2018
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  7. Update default shaders in documentation of webgl classes

    @jahow
    jahow committed Dec 7, 2018
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