Add a Custom WebGL2 Shader Layer to a glmap Map — add_webgl_shader

Enables R developers and extension packages to write custom GLSL vertex and fragment shaders driven by GLMP binary coordinate/attribute buffers.

Usage

add_webgl_shader_layer(
  map,
  data = NULL,
  vertex_shader = NULL,
  fragment_shader = NULL,
  uniforms = list(),
  draw_mode = c("POINTS", "TRIANGLES", "LINES", "LINE_STRIP"),
  id = NULL,
  group = NULL
)

Arguments

map: A glmap widget or glmap_proxy.
data: Optional sf, sfc, or data.frame packed into a GLMP binary buffer for the shader.
vertex_shader: Custom GLSL vertex shader source string.
fragment_shader: Custom GLSL fragment shader source string.
uniforms: Named list of uniform values passed to the shader program.
draw_mode: WebGL draw mode: "POINTS", "LINES", "LINE_STRIP", or "TRIANGLES".
id: Layer ID.
group: Layer group name.