well, Andrea, can I copy your email to GitHub issues or you prefer to explain it there yourself? I think your use case goes a bit beyond just testing and into actual workflow category? ---------- Forwarded message --------- От: Adam Williams <[email protected]> Date: пт, 10 нояб. 2023 г., 21:16 Subject: Re: [heroineworshiper/hvirtual] question about clipping in Histogram plugin (Issue #8) To: heroineworshiper/hvirtual <[email protected]> Cc: Andrew Randrianasulu <[email protected]>, Author < [email protected]> The big problem with histogram is histograms are expected to clamp. The graph has to be changed to show a Y range beyond 0-1, you need some more parameters to define min & max Y. You could make a new histogram plugin which implemented the new options. It gets a bit bloated so the question is again why you need histogram to support more than 0-1? Sent: Thursday, November 09, 2023 at 11:14 AM From: "Andrew Randrianasulu" ***@***.***> To: "heroineworshiper/hvirtual" ***@***.***> Cc: "Adam Williams" ***@***.***>, "Comment" ***@***.***> Subject: Re: [heroineworshiper/hvirtual] question about clipping in Histogram plugin (Issue #8) A case of is it worth the effort to support values <0 & >1 & the answer was no. If you can find a good reason & actually fix everything including the opengl functions no-one uses, maybe it could work. well, I looked into playback3d.C and some shaders there surely uses clip? But biggest problem for me I do not know how to init fp32 fbo/pbo, so it all remained clipped. But just switching textures to 32f made big difference with test file Andrea provided and fade out. https://www.youtube.com/watch?v=7GOhtJciHBk I tried to follow advice given in https://community.khronos.org/t/glx-ati-pixel-format-float-under-linux/47685... (but using more modern GLX_RGBA_FLOAT_BIT_ARB). use-case is exr/tiff from some photography software or rasterizer, where values > 1.0f exist. (ffmpeg seems to convert most/all video to integer formats, but may be in last ffmpeg they added it - https://git.ffmpeg.org/gitweb/ffmpeg.git/commit/479747645f795b6f4f376578ea15... - "avutil/pixfmt.h: add native-endian RGB32F and RGBA32F formats") — Reply to this email directly, view it on GitHub, or unsubscribe. You are receiving this because you commented.Message ID: ***@***.***> — Reply to this email directly, view it on GitHub <https://github.com/heroineworshiper/hvirtual/issues/8#issuecomment-1806198961>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AJSS7TJ5T7MREFWQWTBCADLYDZVO5AVCNFSM6AAAAAA7E3NKDOVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMYTQMBWGE4TQOJWGE> . You are receiving this because you authored the thread.Message ID: <heroineworshiper/hvirtual/issues/8/[email protected]>