Method createMipmapTextureHandle

src/webgl/p5.RendererGL.js:946–974

({ levels, format, dataType, width, height })

  }

  createMipmapTextureHandle({ levels, format, dataType, width, height }) {
    const gl = this.GL;
    const texture = gl.createTexture();

    gl.bindTexture(gl.TEXTURE_2D, texture);

    // Determine GL format and data type
    const glFormat = gl.RGBA;
    const glDataType = gl.UNSIGNED_BYTE;

    for (let level = 0; level < levels.length; level++) {
      gl.texImage2D(
        gl.TEXTURE_2D,
        level,
        glFormat,
        glFormat,
        glDataType,
        levels[level]
      );
    }

    // Set mipmap-appropriate filtering
    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR);
    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR_MIPMAP_LINEAR);

    gl.bindTexture(gl.TEXTURE_2D, null);

    return { texture, glFormat, glDataType };
  }

  /* Binds a buffer to the drawing context
   * when passed more than two arguments it also updates or initializes