Render Queue Shining Promblem

I hav three 2D's gameobject,A,B and C.

I put them in the same position like a paper doll.

And A's render queue is 4000,B's render queue is 4001 and C's render queue is 4002

When the anim play they are shining

sometimes B will behind A,but sometimes B will in front of A

I hav ever try play A's,B's and C's anim separatly.

It's no shining when they are separate.

 

This is called "z-fighting" and it happens when you have 2 renderable surfaces at nearly the same position. When objects are far apart, the depth testing part of the rendering system can tell which one is in front (and should therefore be shown). However, when the objects are too close, the depth tester doesn't know which one to show, so it "guesses" (there's a more technical explanation for this, but I won't get into that).

You'll have to separate the objects out so they aren't right on top of each other (use the z-axis if this is a 2D game). If you MUST have them in the same position, you'll need to look up how stenciling works and you'll need to write a custom shader.

 

Thanks you!

I slove the question by using the shader's offset value