It does seem to make, for example, the nes output > This would correspond to correctly converted YIQ but then converted back to RGB with > For example, if I type the matrices into wolframalpha mostly correctly and copy paste > hlsl.json to allow negative slider values. Either the BGFX version or D3D will work. > (YIQ->RGB)*(RGB->YIQ) and use the result in the color convolution section of the hlsl
NESTOPIA UNDEAD FULL
> To get the full RGB->YIQ->RGB you multiply the matrices together in the correct order > (2)Get the YIQ->RGB matrix from your post > (1)Get the RGB->YIQ matrix from wikipedia. > of gamma correction first) you can do the following: > If you want to try out this effect now (it might be wrong if we need to do some kind > It's interesting how far off these are from the formulas on the YIQ wikipedia page. > YIQ->RGB formulas are from the standard ones you see everywherw (like wikipedia). But I'm still surprised at how far off the Now that I'm not on my laptop out in the sun I see that this is > For those interested, the conversion formula (RGB -> YIQ) for this particularĮdited by SoltanGris42 (04/16/16 06:28 AM) > and popular computer monitors and televisions. > respective console and computer systems appear when displayed on many highly utilized > When selected as a palette option, the color hues are spectacular, nailing the way > TwoMBit-Core featuring SMS emulation for OpenEmu. > It is also applied to (forks of) the Gens/Genesis emulator as well as a part of the > various shader and video filter possibilities currently available for MAME (?) > CXA2025AS US decoder matrix, whether it can be implemented as an option with all the > Curious if anyone has insight regarding palette output, as processed through the Sony It was set at 150% by default in the bgfx hlsl chain! And lower saturation if you haven't already. But you might need to play with the gamma settings. It does seem to make, for example, the nes output closer to my old crt PVM. This would correspond to correctly converted YIQ but then converted back to RGB with your coefficients (barring typos). But you'll need to edit the hlsl.json to allow negative slider values.įor example, if I type the matrices into wolframalpha mostly correctly and copy paste the result, the result is: To get the full RGB->YIQ->RGB you multiply the matrices together in the correct order (YIQ->RGB)*(RGB->YIQ) and use the result in the color convolution section of the hlsl shader. (2)Get the YIQ->RGB matrix from your post (1)Get the RGB->YIQ matrix from wikipedia. If you want to try out this effect now (it might be wrong if we need to do some kind of gamma correction first) you can do the following: It's interesting how far off these are from the formulas on the YIQ wikipedia page.
But I'm still surprised at how far off the YIQ->RGB formulas are from the standard ones you see everywherw (like wikipedia). Now that I'm not on my laptop out in the sun I see that this is pretty bad on a calibrated monitor. When selected as a palette option, the color hues are spectacular, nailing the way respective console and computer systems appear when displayed on many highly utilized and popular computer monitors and televisions.įor those interested, the conversion formula (RGB -> YIQ) for this particular decoder matrix is as follows:ĮDIT: Nevermind.
It is also applied to (forks of) the Gens/Genesis emulator as well as a part of the TwoMBit-Core featuring SMS emulation for OpenEmu. #353026 - 04/15/16 01:33 PM Attachment: SONY_CXA2025AS.zip 388 KB (7 downloads)Ĭurious if anyone has insight regarding palette output, as processed through the Sony CXA2025AS US decoder matrix, whether it can be implemented as an option with all the various shader and video filter possibilities currently available for MAME (?)
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