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Python and Java API / Python API Doesn't Use GPU for pickPoint
« on: February 10, 2022, 03:57:00 PM »
Hello All,
I am using Metashape Pro's Python API to get the geo-coordinate of each pixel inside the input images (by input images I mean images captured by the physical camera). I reused code already found on this forum. However, when I have a mesh with a large number of faces, I found that chunk.model.pickPoint takes ~ 30 ms per point on a somewhat powerful machine. This makes it totally unusable for a large number of pixels. When I checked the CPU and GPU usage, I found that the GPU is never used even if I explicitly change the GPU mask inside the script while the CPU usage is 100%. As far as I know, the pickPoint function is a ray intersection algorithm that should benefit dramatically from a GPU (the machine has an RTX GPU too). So, how can I make the Python API use the GPU for pickPoint? Is it not currently supported? If it is not supported on Python, is it supported inside the Java API?
I am using Metashape Pro's Python API to get the geo-coordinate of each pixel inside the input images (by input images I mean images captured by the physical camera). I reused code already found on this forum. However, when I have a mesh with a large number of faces, I found that chunk.model.pickPoint takes ~ 30 ms per point on a somewhat powerful machine. This makes it totally unusable for a large number of pixels. When I checked the CPU and GPU usage, I found that the GPU is never used even if I explicitly change the GPU mask inside the script while the CPU usage is 100%. As far as I know, the pickPoint function is a ray intersection algorithm that should benefit dramatically from a GPU (the machine has an RTX GPU too). So, how can I make the Python API use the GPU for pickPoint? Is it not currently supported? If it is not supported on Python, is it supported inside the Java API?
