@deck.gl/layers/src/bitmap-layer/bitmap-layer-vertex.ts

deck.gl core layers

// deck.gl
// SPDX-License-Identifier: MIT
// Copyright (c) vis.gl contributors

export default `\
#version 300 es
#define SHADER_NAME bitmap-layer-vertex-shader

in vec2 texCoords;
in vec3 positions;
in vec3 positions64Low;

out vec2 vTexCoord;
out vec2 vTexPos;

const vec3 pickingColor = vec3(1.0, 0.0, 0.0);

void main(void) {
  geometry.worldPosition = positions;
  geometry.uv = texCoords;
  geometry.pickingColor = pickingColor;

  gl_Position = project_position_to_clipspace(positions, positions64Low, vec3(0.0), geometry.position);
  DECKGL_FILTER_GL_POSITION(gl_Position, geometry);

  vTexCoord = texCoords;

  if (bitmap.coordinateConversion < -0.5) {
    vTexPos = geometry.position.xy + project.commonOrigin.xy;
  } else if (bitmap.coordinateConversion > 0.5) {
    vTexPos = geometry.worldPosition.xy;
  }

  vec4 color = vec4(0.0);
  DECKGL_FILTER_COLOR(color, geometry);
}
`;