[Feature] Half-Pixel correction on prebuilt atlasses#164
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berinhardt wants to merge 2 commits into
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hi, have you tested examples/Demo/Pixel2Texel? |
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It only breaks with pregenerated atlases. |
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Demo has .bat files to prebuild atlasses, and if your code breaks it then it can't be merged |
…a per resource basis [Feature] compiling with -DENABLE_HPC makes true the hpc default for all pregenerated atlases
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Ok, remade it so it doesnt break the texel2pixel demo. on any image you can now add hpc="true/false" in it's xml and it will enable/disable this correction to it. you can compile with -DFORCE_HPC and it will enable it by default |
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Lets have a small texture (lets say under 10 px wide)
put it in a big atlas (1024x1024) somewhere in the middle
create a sprite with said texture and set its width to something big, maybe 500px
neigbour pixels of the atlas bleed into it
that's because the UV coords refer to the left border of the most left pixel and to the right border of the most right pixel of the texture
this pull request adresses this by imposing a halfpixel correction on AnimationFrame Generation time making the UVs point to the middle of those pixels