Merge branch 'credit' into 'master'

Credit

See merge request open-mmlab/mmdet.3d!77

mmdet3d/ops/ball_query/src/ball_query.cpp

+// Modified from
+// https://github.com/sshaoshuai/Pointnet2.PyTorch/tree/master/pointnet2/src/ball_query.cpp
+
 #include <THC/THC.h>
 #include <cuda.h>
 #include <cuda_runtime_api.h>

mmdet3d/ops/ball_query/src/ball_query_cuda.cu

+// Modified from
+// https://github.com/sshaoshuai/Pointnet2.PyTorch/tree/master/pointnet2/src/ball_query_gpu.cu
+
 #include <math.h>
 #include <stdio.h>
 #include <stdlib.h>

mmdet3d/ops/furthest_point_sample/src/furthest_point_sample.cpp

+// Modified from
+// https://github.com/sshaoshuai/Pointnet2.PyTorch/tree/master/pointnet2/src/sampling.cpp
+
 #include <ATen/cuda/CUDAContext.h>
 #include <THC/THC.h>
 #include <torch/extension.h>

mmdet3d/ops/furthest_point_sample/src/furthest_point_sample_cuda.cu

+// Modified from
+// https://github.com/sshaoshuai/Pointnet2.PyTorch/tree/master/pointnet2/src/sampling_gpu.cu
+
 #include <stdio.h>
 #include <stdlib.h>
 

mmdet3d/ops/group_points/src/group_points.cpp

+// Modified from
+// https://github.com/sshaoshuai/Pointnet2.PyTorch/tree/master/pointnet2/src/group_points.cpp
+
 #include <THC/THC.h>
 #include <cuda.h>
 #include <cuda_runtime_api.h>

mmdet3d/ops/group_points/src/group_points_cuda.cu

+// Modified from
+// https://github.com/sshaoshuai/Pointnet2.PyTorch/tree/master/pointnet2/src/group_points_gpu.cu
+
 #include <stdio.h>
 #include <stdlib.h>
 

mmdet3d/ops/interpolate/src/interpolate.cpp

+// Modified from
+// https://github.com/sshaoshuai/Pointnet2.PyTorch/tree/master/pointnet2/src/interpolate.cpp
+
 #include <THC/THC.h>
 #include <cuda.h>
 #include <cuda_runtime_api.h>

mmdet3d/ops/interpolate/src/three_interpolate_cuda.cu

+// Modified from
+// https://github.com/sshaoshuai/Pointnet2.PyTorch/tree/master/pointnet2/src/interpolate_gpu.cu
+
 #include <math.h>
 #include <stdio.h>
 #include <stdlib.h>

mmdet3d/ops/interpolate/src/three_nn_cuda.cu

+// Modified from
+// https://github.com/sshaoshuai/Pointnet2.PyTorch/tree/master/pointnet2/src/interpolate_gpu.cu
+
 #include <math.h>
 #include <stdio.h>
 #include <stdlib.h>

mmdet3d/ops/roiaware_pool3d/src/points_in_boxes_cpu.cpp

 // Modified from
 // https://github.com/sshaoshuai/PCDet/blob/master/pcdet/ops/roiaware_pool3d/src/roiaware_pool3d_kernel.cu
-// Points in boxes cpu
 // Written by Shaoshuai Shi
 // All Rights Reserved 2019.
 

mmdet3d/ops/roiaware_pool3d/src/points_in_boxes_cuda.cu

 // Modified from
 // https://github.com/sshaoshuai/PCDet/blob/master/pcdet/ops/roiaware_pool3d/src/roiaware_pool3d_kernel.cu
-// Points in boxes gpu
 // Written by Shaoshuai Shi
 // All Rights Reserved 2019.
 

mmdet3d/ops/roiaware_pool3d/src/roiaware_pool3d.cpp

 // Modified from
 // https://github.com/sshaoshuai/PCDet/blob/master/pcdet/ops/roiaware_pool3d/src/roiaware_pool3d_kernel.cu
-// RoI-aware point cloud feature pooling
 // Written by Shaoshuai Shi
 // All Rights Reserved 2019.
 

mmdet3d/ops/roiaware_pool3d/src/roiaware_pool3d_kernel.cu

 // Modified from
 // https://github.com/sshaoshuai/PCDet/blob/master/pcdet/ops/roiaware_pool3d/src/roiaware_pool3d_kernel.cu
-// RoI-aware point cloud feature pooling
 // Written by Shaoshuai Shi
 // All Rights Reserved 2019.