I see, that CPTA_uchar data has get_data(); My idea was to get this data, and then somehow extract actual RGB values from it. But it returns std::string, and also throws compiler linkage errors.
Thank you very much for the reply! I was able to move forward, but stuck again for several hours. Basically, no matter what, myImg->might_have_ram_image() returns false;
I decided to be smart, as PNMImage allows me pixel manipulation too, so I created:
self.PNMDF = PNMImage()
and then every frame I do:
self.Fdepthmap.store(self.PNMDF)
and then I have this:
And size is always 0; So its either I can not get ram image, or stuck with 0 size. OnscreenImage shows texture just fine, so I wonder what else am I missing.
Hmm, just a guess, but Panda deletes the texture from RAM (by default) once it has uploaded it to the GPU. Could this be the case for you? Use tex.has_ram_image() to find out if it has an image in RAM.
Keep in mind that if you used render-to-texture, it won’t be in RAM until you asked Panda to transfer it to RAM. You’d have to do that by using the RTMCopyRam mode (or RTMTriggeredCopyRam with trigger_copy()).