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    glsl-directional-light

    0.0.1 • Public • Published

    glsl-directional-light experimental

    A reusable GLSL directional light function.

    The simplest case is to simply use:

    dot(normal, direction) * light

    But this module also takes into account specualrity as well.

    view demo

    glsl-directional-light

    Usage

    glsl-directional-light

    Exports vec3 directional_light(), which takes the following arguments:

    • vec3 normal: This point's normal vector.
    • vec3 light: The light color.
    • vec3 surface: The color of the material/surface being drawn.
    • vec3 lightDirection: The direction of the light to cast – normalized.
    • mat4 modelMatrix: The model matrix.
    • mat4 viewMatrix: The view matrix.
    • vec3 viewPosition: The position of the camera in world space.

    If you wish to include specular lighting too, simply add these two extra parameters when calling the function:

    • float shininess: Set to lower values for matte, higher for gloss.
    • float specularity: The amount by which to scale the specular light cast on the object.

    License

    MIT. See LICENSE.md for details.

    Install

    npm i glsl-directional-light

    DownloadsWeekly Downloads

    0

    Version

    0.0.1

    License

    MIT

    Last publish

    Collaborators

    • hughsk