Method _renderDistortion

src/tools/texture-lab/renderer.js:756–775

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

  }

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

    this._useProgram(program, flipY);

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

    const typeMap = { wave: 0, swirl: 1, bulge: 2 };

    gl.uniform1i(program.uniforms.u_image, 0);
    gl.uniform1i(program.uniforms.u_type, typeMap[params.type] ?? 0);
    gl.uniform1f(program.uniforms.u_amplitude, params.amplitude);
    gl.uniform1f(program.uniforms.u_frequency, params.frequency);
    gl.uniform2f(program.uniforms.u_center, params.centerX, params.centerY);
    gl.uniform2f(program.uniforms.u_resolution, width, height);

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

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