@luma.gl/engine/dist/models/billboard-texture-module.js

3D Engine Components for luma.gl

// luma.gl
// SPDX-License-Identifier: MIT
// Copyright (c) vis.gl contributors
const BACKGROUND_FS = /* glsl */ `\
#version 300 es

layout(std140) uniform billboardTextureUniforms {
  vec2 topLeft;
  vec2 bottomRight;
} billboardTexture;

precision highp float;
uniform sampler2D backgroundTexture;
out vec4 fragColor;

vec2 billboardTexture_getTextureUV() {
  ivec2 iTexSize = textureSize(backgroundTexture, 0) * 2;
  vec2 texSize = vec2(float(iTexSize.x), float(iTexSize.y));
  vec2 position = gl_FragCoord.xy / texSize;
  return position;
}

void main(void) {
  vec2 position = billboardTexture_getTextureUV();
  fragColor = texture(backgroundTexture, position);
}
`;
export const billboardTexture = {
    name: 'billboardTexture',
    fs: BACKGROUND_FS,
    dependencies: [],
    uniformTypes: {
        topLeft: 'vec2<f32>',
        bottomRight: 'vec2<f32>'
    }
};
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