Download Latest Version libprojectM-4.1.6.tar.gz (1.3 MB)
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libprojectM-4.1.6.tar.gz 2025-11-28 1.3 MB
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libprojectM Release 4.1.6 source code.tar.gz 2025-11-24 47.9 MB
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libprojectM Release 4.1.6 source code.zip 2025-11-24 48.2 MB
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README.md 2025-11-24 2.1 kB
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Totals: 4 Items   97.4 MB 27

This release fixes one issue from the previous 4.1.5 release which prevents building libprojectM on Windows when using boost::filesystem. In addition to this build fix, numerous preset rendering quality improvements were added.

Huge thanks to @yoyofr for all the testing and fixing these issues!

What's Changed

  • Fix compilation issue with boost::filesystem caused by a missing #include statement.
  • Blur textures now use the correct source image (previous frame instead of warped image).
  • A vertex shader uniform wasn't set and used uninitialized, causing custom waveforms in "dot" mode to not display properly or at all.
  • Fixed some math errors in the default waveform calculations, like placing waveforms at the opposite Y coordinate.
  • Fixed the decay value in presets being clamped to a max value of 0.9375 instead of 1.0, causing most Milkdrop 1.4 presets to be rendered way too dark.
  • Fixed sep parameter in custom waveforms using the wrong number of samples.
  • Added additional row-access function overloads for matrices in HLSL/GLSL transpiler.
  • Removed half-texel offset in warp shaders, which wasn't required in OpenGL. This fixes an unintended left-top "drift" in all presets.
  • Added missing fwidth intrinsic function in HLSL/GLSL transpiler.
  • Changed an integer constant to float in the custom acos(float) function implementation in the HLSL/GLSL transpiler, fixing a shader compilation error.
  • Fixed erroneous type casting in PCM smoothing logic in custom waves.
  • Added a special case for pow(x, 1) in the HLSL/GLSL transpiler, replacing it with a literal x to match DirectX/HLSL behavior in cases x is negative.
  • Fixed an issue with loaded presets losing their textures if the application changed texture paths between frames.
  • Added more GitHub Actions workflow combinations to check additional build parameters.
  • Put the PS() function in its own line in the HLSL/GLSL transpiler for better readability in case of shader compilation failures.

Full Changelog: https://github.com/projectM-visualizer/projectm/compare/v4.1.5...v4.1.6

Source: README.md, updated 2025-11-24