Ensure that Particles have fully initialized before doing view axis pass in RD renderers #71925
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Fixes the first reported issue in #70607 but not the second
trail_bind_pose_uniform_set
is initialized when the particles are processed for the first time. This code runs each frame and is used when the particles require camera-based effects or custom sorting. So it is possible for this to be called without the particles having been processed. So we need a more comprehensive early out.This change isn't needed in the GL_Compatibility renderer as it doesn't have support for trails.