![]() From the Paint menu, you can select either a Scene File with the look you want, or you can directly load the Base Look that you want. In Custom Mode there are two ways to change the Base Look of the FX6. ![]() In addition to this default Base Look, the FX6 has three other Base Looks that can be used in the Custom(709) mode, these are “Standard,” “Still,” and “ITU709.” These are similar to Picture Profile 1, PP1 (Standard), PP2 (Still) and PP3(ITU709) found in the PXW-FS5 and many Alpha stills cameras. When the FX6 is set to the “Custom(709)” shooting mode, by default the camera will load a “Base Look” that uses Sony’s S-Cinetone gamma curve and color matrix. So how does it work and how do you do it? It’s an incredibly powerful and useful tool and there is no other camera that I am aware of that offers similar capability. In addition, it’s even possible to further modify the look in-camera via the built-in paint settings. The CineEI mode is used when you want to shoot using S-Log3 and in this mode it is normal to add a LUT (Look Up Table) to the viewfinder image or the HDMI and SDI outputs to provide an approximation of how the graded footage will look and to help with assessing exposure.īut did you know that these very same LUTs can also be used in the cameras Custom mode to provide you with an almost unlimited range of different looks? These looks are then what the camera records, so no further grading is needed. The FX6 has two different shooting modes, Custom mode and CineEI. To learn more about Alister Chapman, visit his website: .Īlister’s recent review of FX6 can be found at this link: It's easy to get errors when doing hand gate level coding.Alister Chapman is a DP, editor, producer, educator, and is very well versed in technology and all things camera and video related. The two architectures have been analyzed but not simulated. It should be fewer gates than your chained multiplexers and a bit flatter (faster). Z <= t1 or t2 or t4 or t7 or t8 or t11 or t13 or t14 Y <= not ( t0 or t1 or t2 or t8 or t15 ) T0 <= not a and not b and not c and not d (x, y, z) <= lutout'(temp(2), temp(1), temp(0)) Īnd failing that I think hand optimizing it as a ROM is likely to be close in terms of gate count: - 0000 0001 0010 0011 Temp <= bitcount( TO_INTEGER ( unsigned (lutin'(a&b&c&d) ) ) ) Signal temp: std_logic_vector (2 downto 0) Type lut is array (natural range 0 to 15) of lutout Subtype lutout is std_logic_vector (2 downto 0) Subtype lutin is std_logic_vector (3 downto 0) I'm guessing this should be what you should do when targeting an FPGA: library ieee ![]() espresso) on your table then code the result in VHDL. Other than that you can use a minimizer (e.g. I'm going to go out on a limb here and tell you to let your synthesizer optimize it. You can of course write this in several different ways and you might wish to map ports differently, etc, but this should get you on the right track. When "0000" => xyz xyz xyz xyz xyz xyz xyz xyz xyz xyz xyz xyz xyz xyz xyz xyz <= "100" Īs you can see, this is exactly your truth table copied in and just modified to fit VHDL syntax. Instead, simply describe the behavior you want, and let VHDL do the work for you:įor example, here is simple VHDL for the combinational logic LUT you've described: library ieee There is probably no reason to unwrap this into low-level gates and muxes. Unless you are just fooling around in VHDL for fun or learning, if you want a LUT, write it directly as a LUT. If you have any questions I will respond immediately I have tried to provide as much research as possible. I would have a total of 15 processes shown above.ġ.) What are my selects for the mux, ABCD?Ģ.) Am I modeling this the correct way? Will I achieve what I want from the info given?ģ.) If there is a better way or you have a different Idea could you please provide an example?Ĥ.) I am not getting my xyz output, its close but what am i doing wrong? I need a total of 15 multiplexers to model what I need. I want my 3 bit output to be a binary number equal to the number of 1's in the input. I am trying to write vhdl module a LUT (Look Up Table) with 4 inputs and 3 outputs.
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