Intended to be compatible with logarithmic depth?

[Ben Ferns]

I get the following error in BatchedParticleRenderer materials when switching the threejs renderer to logarithmic depth:

THREE.WebGLProgram: Shader Error 0 - VALIDATE_STATUS false Program Info Log: Vertex shader is not compiled. VERTEX ERROR: 0:123: 'isPerspectiveMatrix' : no matching overloaded function found

[Forrest Sun]

Thanks for pointing out and ur merge request. I was busy with other stuff. Now I am back will merge your request.

[Forrest Sun]

#38