falichs/depixelizing-pixel-art-on-gpus

depixelizing-pixel-art-on-gpus's Issues

Usage in emulators

Hi there

I am wondering, if this algorithm is used at all in any practical application.

I get, that it is too resource intensive to be used on the CPU, and that your implementation is the only maintained one, that runs on a GPU.

I am kinda wondering, why the seemingly most advanced upscaling/shader algorithm is not more used and contributed to by the community - do you know of any emulator, that uses it yet?

Or even of an opportunity to run this on AMD GPUs? (You oddly enough mentioned only that it doesn't run on Intel, with no mention about AMD for some reason?

Thanks

Compilation issues with gl_VertexID name

Hello,

When running DepixelizeOnGPU, I am getting

Compiling shader : ../shaders/Optimization/OptimizeEnergy.vert
0:54(8): error: `gl_VertexID' redeclared

Linking program
error: linking with uncompiled/unspecialized shader
Compiling shader : ../shaders/UpdateCorrectedPositions/UpdateCorrectedPositions.vert
0:24(8): error: `gl_VertexID' redeclared

Just for trying, I renamed them into gl_VertexID2, and got instead

Compiling shader : ../shaders/Optimization/OptimizeEnergy.vert
0:54(1): error: identifier `gl_VertexID2' uses reserved `gl_' prefix

Linking program
error: linking with uncompiled/unspecialized shader
Compiling shader : ../shaders/UpdateCorrectedPositions/UpdateCorrectedPositions.vert
0:24(1): error: identifier `gl_VertexID2' uses reserved `gl_' prefix

I don't know if this is supposed to have exactly this name, otherwise I guess it should be renamed to avoid being in the gl_ namespace?

Samuel

linking eliminateCrossings.frag takes ages

Hello,

Running DepixelizeOnGPU (on a Debian Linux Buster system), execution starts fine, but gets stuck for a very long time (2 minutes !) on

Compiling shader : ../shaders/quad_shader.vert
Compiling shader : ../shaders/SimilarityGraph/eliminateCrossings.frag
Linking program

This is inside glLinkProgram. I'm not sure whether that is really expected,or I should submit a bug report against my OpenGL driver?

Samuel