bitfieldExtract on GLES3.0

The generated shader code (gles3.0) may have some problem.
Shader Code like this:

(value>>8)&8 ;

will generate:

bitfieldExtract(value,8,8);

But the problem is bitfieldExtract is not supported by gles3.0.
I want to know is there any good method to solve this problem?
Thanks!

 

Are you using something like this line somewhere in your shader?

#pragma target es3.0

 

Thanks for your reply.
I have try:
#pragma target es3.0
#pragma target 3.0
#pragma target 3.5
But make no sense.
Error will output:

0(33) : error C7532: global function bitfieldExtract requires "#version 400" or later

0(33) : error C0000: ... or #extension GL_ARB_gpu_shader5 : enable

I think maybe it's a bug on gles platform of unity.
Actually,if unity do nothing with the >>&,the shader will work well...

 

You might need to report it as a big then. A cursory internet search showed the same bug happening in some non-Unity projects, so it might be some library Unity uses that’s behaving badly.

 

What are you trying to do?

If you want to read a bit, you can do it with a divide and a modulo:
(number / (2^bit position) %2