POM increasing instruction count just by being used inside a Material function.

lobachevscki · June 24, 2020, 6:34am

Hi!

Im creating a project in which im using POM. I just copied the POM MF from the Engine Content to the Content Folder. I realized if I use it inside a MF the instruction count increases quite a bit, even tho I havent tested yet if indeed has a performance impact of it is only the counter going crazy. Attached some examples:

1- Simple MF that contains the POM MF and parameters.

2 - Connecting the function to a material slate.

3 - Final instruction count shown in the instance.

4- Same setup done directly in the master material

5 - A interesting thing is that if i create the function and connect the POM from the master, the count is low as if everything is done in the master. As long as the POM MF is not nested, instruction count remains as expected.

A bug? or am i missing something here? as said, havent tested in an external profiler if this does increase performance or it is just a problem in the instruction counter.

Thanks

Arkiras · June 24, 2020, 7:45am

Could be a bug. Might be unimportant though because the instruction count for POM is not accurate anyway, which is why it has its own debug view.

Does it happen with other nodes or is it just specific to POM?

Deathrey · June 24, 2020, 8:00am

Instruction count is accurate. Most probably a bug.

lobachevscki · June 28, 2020, 10:13am

Sorry for the late response.

This happens only for POM.

Please, which count is the right one? inside or outside the material function.

Thanks!

Deathrey · June 28, 2020, 2:19pm

That would be both.

lobachevscki · July 1, 2020, 3:02pm

Thank you very much.