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DX12 Interesting summer projects?

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Hey. I'm looking to do a proper graphics related project in the summer holiday for the full 8 weeks that I have available.

I'm not a beginner - I've done all of the basic stuff. I've written a forward renderer in DirectX 11 two years ago and another forward renderer in DirectX 12 this year. I've done Phong lighting and GPU skinning. Perhaps non graphics related, but I have done many engine things, such as custom memory management techniques, ECS's, resource managers, etc. On the C++ side of things I consider myself a pretty good programmer, but I tend to get too obsessed with making a good C++ architecture before I ever start working on actual graphics related work.

I want to do a project this summer which will really solidify me as a graphics programmer. I want to do it using DirectX 12. I want it to be a solid portfolio piece that I can take with me to job/internship interviews.

What kind of stuff do you think would be really impressive if pulled off?

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