paradiso/docs

Todo

Here some ideas for improving this tiny engine:

Rendering

• replace the OpenGL renderer with a Vulkan backend
• add sprite atlas support (test case Kenny flappy bird)
• add animatable sprites (access to UV mapping and tiling)
• add a SDF based renderer (parametric tiles and font rendering)

Game Support

• audio!
• some minimal animation system with tweening with different f-curves

System Level

• add a Asset handler to load cache and manage assets
• introspection of file system if we load asset

Design

• replace some of the 'unknown source' assets

Build / Dev Support

• add a test rig either with Snitch or Catch2
• write some reasonable testcases
• add CPU and GPU benchmarks to address various issues

Performance

For such a small engine, this should never happen:

 Performance counter stats for 'bin/paradiso_pong':

            555,35 msec task-clock:u                     #    0,042 CPUs utilized
                 0      context-switches:u               #    0,000 /sec
                 0      cpu-migrations:u                 #    0,000 /sec
             4.072      page-faults:u                    #    7,332 K/sec
       319.484.735      cycles:u                         #    0,575 GHz
       358.165.995      instructions:u                   #    1,12  insn per cycle
        86.037.942      branches:u                       #  154,926 M/sec
         2.469.068      branch-misses:u                  #    2,87% of all branches

      13,092775373 seconds time elapsed

       0,311565000 seconds user
       0,247491000 seconds sys

above run with perf stat bin/paradiso_pong shows some really bad performance issues.