![]() ![]() TGA is loaded faster than compressed PNG.The compression won't make huge difference, since the game engines will compress the image to it own format.JPG is a no-go since it is a compressed format and can't store the alpha channel.This problem caused the unwanted artifact when using in game engines. (this is why there is a plug in for photoshop called superpng existed). It can be absolute white, black or just some color from the other area. Some software (even photoshop, I don't know if they fixed it or not) will fill in random color for RGB channels where the alpha value is 0 (fully transparent).PNG, the software will automatically treats the alpha channel as transparency, which is hard to deal with. The alpha channel of TGA is separated when opened, so we can take control of it easily.Because of some difference in how the photographic softwares treat the Alpha channel of each extension: ![]()
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