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Question - Code combining surfaces when blending



the code i am using is based off this video

i am trying to use this system so that only specific objects will blend, so that object1 will only blend with others of object1, and object2 will do the same, but object 1 and object 2 wont blend with one another.

i have been able to do this but i have to draw a surface for every single object type, which is not an ideal situation, it works but im making the machine work much harder then it should.

is their a way to draw everything, then put them all only one surface and then show that to the player, as opposed to having multiple surfaces all being draw on the screen?

thank you.