Method _renderPosterize

src/tools/texture-lab/renderer.js:777–791

(params, inputTexture, width, height, flipY = 1.0)

  }

  _renderPosterize(params, inputTexture, width, height, flipY = 1.0) {
    const gl = this.gl;
    const program = this.programs.posterize;

    this._useProgram(program, flipY);

    gl.activeTexture(gl.TEXTURE0);
    gl.bindTexture(gl.TEXTURE_2D, inputTexture);

    gl.uniform1i(program.uniforms.u_image, 0);
    gl.uniform1i(program.uniforms.u_levels, params.levels);
    gl.uniform1i(program.uniforms.u_preserveHue, params.preserveHue ? 1 : 0);

    gl.drawArrays(gl.TRIANGLES, 0, 6);
  }

  _renderEdge(params, inputTexture, width, height, flipY = 1.0) {
    const gl = this.gl;