The oSP3D image simulate interface cannot write a valid image file from beginning to end. It can only modify a valid image file.

The image simulate interface can modify the whole ARGB color space of each pixel. To do so, independently from the image format, the export interface needs to convert the way that the color information is stored in your picture (such as monochrome, gray, 16-bit versus 8-bit color channels, existence of alpha channel, and so). This procedure does not affect the image format of the file (such as .jpg or .png).