Blockie

Voxel renderer using Vulkan compute shaders

Requirements

• Windows
• Dlang https://dlang.org/
• Vulkan Runtime dll (provided by your GPU vendor if supported)
• GLFW dll (provided by dlang-vulkan)
• CImgui dll (provided by dlang-vulkan)
• https://github.com/pvmoore/dlang-vulkan
• https://github.com/pvmoore/dlang-common
• https://github.com/pvmoore/dlang-logging
• https://github.com/pvmoore/dlang-maths
• https://github.com/pvmoore/dlang-fonts
• https://github.com/pvmoore/dlang-events
• https://github.com/pvmoore/dlang-resources

Features

• Sparse voxel octrees
• 1024³ voxel chunks
• Asynchronous chunk loading
• Opengl compute shader 2-pass renderer
  • 1st pass ... Ray caster that computes hit distances
  • 2nd pass ... Shader that calculates colour/texture/lighting
• Currently no secondary shadow rays are used

Version History

0.0.32

• Use Imgui for UI

0.0.31

• Remove OpenGL renderer

0.0.30

• Add Model3b which is described in blockie.generate.model.model3b.md
• Add 'useful_functions.comp' code to the project as these functions would not have been visible to anyone other than myself

0.0.29

• Write skybox pixels within the shade shader when a ray misses all scenery instead of as a separate renderer

0.0.28

• Complete Vulkan implementation
• Add skybox textures

0.0.27

• Refactor stats monitors to isolate opengl specific code.
• More refactoring to isolate OpenGL functionality
• Move statistics to stats.md
• Move shader source files into sub folders march/ or shade/
• Initial Vulkan version is working. There is still a glitch when the chunk boundary changes which needs to be optimised

0.0.26

• Lots of package tidying and moving modules around. Separate render from generate.

0.0.25

• Add CPU and GPU name to title bar.
• Add MODEL6 (partial)
• Refactor some directores
• Start to isolate OpenGL (Adding a Vulkan implementation in the future)

0.0.24

• Tidy up Model3 march shader.

0.0.23

• Move CPU info to bottom of on screen display.
• Add Model 5.
• Fix small bug in Model2/3 chunk optimisation.

0.0.22

• Use monospace font for on screen display. Reformat OSD.
• Distance field optimisation.

0.0.21

• Remove some redundant code in distance calculation.

0.0.20

• Improvements to Model 4

0.0.19

• Implement new Model 4 idea

0.0.18

• Use 6 bytes for chunk distance fields allowing a distance of 255 instead of 15.

0.0.17

• Test speed of larger cell distance fields for Model 3. Not much improvement for higher memory usage.

0.0.16

• Use ChunkEditViews when generating distances.

0.0.15

• Tidy up generation.

0.0.14

• Refactor Model1 generation to remove technical debt.

0.0.13

• Add Model 4 which does not use an octree but instead uses arrays of pixels for populated cells. On Hold.

0.0.12

• Add Model 3 which is like Model 2 but using a 5 bit root.

0.0.11

• Tidy up. Remove unused files.
• Refactor domain to a more modular system.
• Add Model2 which only stores boolean information for a voxel ie. whether it is air or not-air. This is more compact than model1 and also slightly faster. Obviously another mechanism for material is required for this model unless you want all voxels to be the same material.
• Rename a lot of files.

0.0.10

• Lots of changes. Great improvment to compute speed and reduction in voxel data size.