You can use the methods converting depth to normal. More details can be refered to some awesome works, like Virtual Normal: Enforcing Geometric Constraints for Accurate and Robust Depth Prediction, VCR-GauS: View Consistent Depth-Normal Regularizer for Gaussian Surface Reconstruction.
You can use the methods converting depth to normal. More details can be refered to some awesome works, like Virtual Normal: Enforcing Geometric Constraints for Accurate and Robust Depth Prediction, VCR-GauS: View Consistent Depth-Normal Regularizer for Gaussian Surface Reconstruction.