### Godot version

4.0 rc2

### System information

Windows 10, Vulkan, GTX 1070

### Issue description

Parallax occlusion mapping does not show in stereoscopic 3D, the shader seems to not be using individual eye positions like it does in 3.5. 




### Steps to reproduce

See attached project

### Minimal reproduction project

[VR test scene.zip](https://github.com/godotengine/godot/files/10750730/VR.test.scene.zip)

return metallic_texture_channel;
}
void BaseMaterial3D::set_roughness_texture_channel(TextureChannel p_channel) {
	ERR_FAIL_INDEX(p_channel, 5);
	roughness_texture_channel = p_channel;
	_queue_shader_change();
}
BaseMaterial3D::TextureChannel BaseMaterial3D::get_roughness_texture_channel() const {
	return roughness_texture_channel;
}
void BaseMaterial3D::set_ao_texture_channel(TextureChannel p_channel) {
	ERR_FAIL_INDEX(p_channel, 5);
	ao_texture_channel = p_channel;
	RS::get_singleton()->material_set_param(_get_material(), shader_names->ao_texture_channel, _get_texture_mask(p_channel));
}
BaseMaterial3D::TextureChannel BaseMaterial3D::get_ao_texture_channel() const {
	return ao_texture_channel;
}
void BaseMaterial3D::set_refraction_texture_channel(TextureChannel p_channel) {
	ERR_FAIL_INDEX(p_channel, 5);
	refraction_texture_channel = p_channel;
	RS::get_singleton()->material_set_param(_get_material(), shader_names->refraction_texture_channel, _get_texture_mask(p_channel));
}
BaseMaterial3D::TextureChannel BaseMaterial3D::get_refraction_texture_channel() const {
	return refraction_texture_channel;
}
Ref<Material> BaseMaterial3D::get_material_for_2d(bool p_shaded, Transparency p_transparency, bool p_double_sided, bool p_billboard, bool p_billboard_y, bool p_msdf, bool p_no_depth, bool p_fixed_size, TextureFilter p_filter, AlphaAntiAliasing p_alpha_antialiasing_mode, RID *r_shader_rid) {