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Everything's a lot smoother - and faster!
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@serg06 serg06 released this 06 Jan 15:06
v0.1.8-alpha
2d61af5

New features:

  • Debug overlay can be enabled with F3
  • Water now flows into empty spaces - try it out! (right click)
  • "Deep blue water" effect when underwater
  • Much smoother mouse, chunk loading, block destruction, mesh generation, loading mesh to gpu
  • Significantly higher FPS
  • Block textures are no longer see-through when viewed at an extreme angle
  • Far-away blocks are much less grainy now
  • Fix tiny pixels / pixel-lines shining through in dark areas
  • Fixed a crash caused by OBS hooking onto our program

Controls:

  • Mouse look around
  • WASD move around
  • Shift/space move up/down
  • ESC quit
  • N toggle noclip
  • P cycle polygon mode
  • [+ or numpad+] (press once or hold) increase render distance
  • [- or numpad-] (press once or hold) decrease render distance (without unloading existing chunks)
  • C toggle face culling
  • Left-click destroy block
  • Right-click place flowing water
  • F3 enable debug overlay
  • Scroll change block type (active block type visible in debug menu)

Technical details (not very interesting):

  • Created a program for drawing text on the screen
    • splits viewport into evenly-sized grid of letters
    • horizontally, always fit a pre-defined number of letters
    • vertically, scale size to keep the grid elements square
  • Speed up drawing by rendering quads as triangle strips
  • Switched to GL_NEAREST min-filtering in order to prevent partially-transparent from affecting depth buffer at extreme angles
  • Add mipmapping to counter the grainyness of GL_NEAREST
    • Create my own mipmap function which doesn't create translucent pixels like OpenGL's does
    • The downside: Far-away leaves are less see-through.
    • The upside: Far-away blocks look way smoother than in Minecraft.
  • Fix the t-junctions caused by greedy meshing by running a t-junction filter over my render.
    • For any pixels whose depth wasn't written to, fill it in using its neighboring colors/depths.
  • Add precompile header
  • Much smoother mouse, chunk loading, block destruction, mesh generation, loading mesh to gpu
    • Mouse is smoother because we're doing less every loop
    • Chunk loading is smoother because of smarter/faster algorithms
    • Block destruction is smoother because
      a. we're re-generating meshes for the minimum number of blocks
      b. our mesh-generation thread generates it now instead of us
      c. our mesh-generation thread is immediately woken up with a conditional variable, instead of having it sleep and loop.
    • Mesh generation is smoother because of smarter/faster algorithms
    • Loading mesh to GPU is faster because I put all quads on one buffer now (instead of 5), and I do it all with a single std::copy call.
  • Fixed a crash caused by OBS hooking the program, by making sure the default framebuffer is bound to GL_DRAW_BUFFER before I swap buffers.
  • Added more per-voxel data so we now can't handle more than a 47 render distance.
    • Gonna try to fix this by storing data in interval maps.
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