Reduces memory allocations on render path/hot path

tippesi / Atlas-Engine

Cross platform toy render engine supporting physically based rendering and hardware/software ray tracing

MIT License

438 stars 28 forks source link

Reduces memory allocations on render path/hot path #66

Open tippesi opened 4 weeks ago

tippesi commented 4 weeks ago

There are quite a number of unnecessary memory allocation on hot paths that could be moved on the stack. This really hurts in multi-threading cases when other threads allocate a lot of memory.

Ideas for improvements:

Pipeline barriers should not use std::vector
Blur filter weights can be calculated in constructors
Basically all usages of std::vector where we resize on a regular basis or even worse use .push_back without a proper .reserve

YanbingXu commented 4 weeks ago

您好，我已收到邮件，谢谢！