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this is the state in 5.4.0b12:(它在5.4.0.B12里是这样的) [ATTACH] and this is the state when i do the same things in 5.1.1:(同样的做法在5.1.1里drawccall只有1)
draw call is still 2 in 5.4 when i created 2 particle system with the same material, and set their 'texture sheet...