Aspects of the disclosure provide a method for video coding. The method includes receiving input data associated with a processing block in a current picture, selecting, from a set of neighboring reconstructed samples for intra-coding pixels in the processing block, a plurality of reference samples for a pixel in the processing block based on a position of the pixel and an intra prediction mode of the processing block, determining a projection phase for the pixel based on the position of the pixel and the intra prediction mode of the processing block, determining coefficients of an interpolation filter based on the projection phase for the pixel, applying the interpolation filter with the determined coefficients on the reference samples to generate a prediction of the pixel, and encoding or decoding the pixel in the processing block using the prediction of the pixel.