### 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)

_validate_feature("normal", FEATURE_NORMAL_MAPPING, p_property);
	_validate_feature("emission", FEATURE_EMISSION, p_property);
	_validate_feature("rim", FEATURE_RIM, p_property);
	_validate_feature("clearcoat", FEATURE_CLEARCOAT, p_property);
	_validate_feature("anisotropy", FEATURE_ANISOTROPY, p_property);
	_validate_feature("ao", FEATURE_AMBIENT_OCCLUSION, p_property);
	_validate_feature("heightmap", FEATURE_HEIGHT_MAPPING, p_property);
	_validate_feature("subsurf_scatter", FEATURE_SUBSURFACE_SCATTERING, p_property);
	_validate_feature("backlight", FEATURE_BACKLIGHT, p_property);
	_validate_feature("refraction", FEATURE_REFRACTION, p_property);
	_validate_feature("detail", FEATURE_DETAIL, p_property);
	if (p_property.name == "emission_intensity" && !GLOBAL_GET("rendering/lights_and_shadows/use_physical_light_units")) {
		p_property.usage = PROPERTY_USAGE_NONE;
	}
	if (p_property.name.begins_with("particles_anim_") && billboard_mode != BILLBOARD_PARTICLES) {
		p_property.usage = PROPERTY_USAGE_NONE;
	}
	if (p_property.name == "billboard_keep_scale" && billboard_mode == BILLBOARD_DISABLED) {
		p_property.usage = PROPERTY_USAGE_NO_EDITOR;
	}
	if (p_property.name == "grow_amount" && !grow_enabled) {
		p_property.usage = PROPERTY_USAGE_NO_EDITOR;
	}
	if (p_property.name == "point_size" && !flags[FLAG_USE_POINT_SIZE]) {
		p_property.usage = PROPERTY_USAGE_NO_EDITOR;
	}
	if (p_property.name == "proximity_fade_distance" && !proximity_fade_enabled) {