If you are looking for a paint closer to the mid-grey on the Macbeth chart, you could use the Munsell NG Neutral Grey Paint: But if you are doing multiple assets (of the same size), then render them all within the same space, and I would then definitely render the grey/chrome and Macbeth to show lighting consistency and that all the models can be assessed fairly.

And then if you are doing and surfacing work (texture, groom, look dev), then definitely yes. I want to know what the environment is like that you’ve been creating these shaders in and what the lighting is like in your additional lighting environments. But ideally, our v001 published ‘look’ and ‘light rigs’ have been calibrated. Whether that be for VFX, full CG or games. From that point onwards, you can be as creative as you need to be. a b C. S. McCamy, H. Marcus, and J. G. Davidson (1976). "A Color-Rendition Chart". Journal of Applied Photographic Engineering 2(3). 95–99. Once you’ve tested things in a neutral space, you can then introduce other HDRIs or coloured lights to see how your shader responds in other environments. But for your ‘testing’ and ‘tweaking’, you should do this in a controlled environment. Much like a scientist doing clinical tests and then moving on to live tests.For full CG shots, I would still render the balls and the Macbeth in the shot, this is primarily so you have a starting point. From that point, you can tweak the lights and as you iterate, your supe/lead can very easily compare between the different versions. Also, most full CG shots will be part of a sequence, so you can then use the reference to ensure consistency across the shots in the sequence. However, due to a number of factors, it SHOULD NOT be used for colour-correction. For more information on using the colour chart, I highly recommend you read the following by Thomas Mansencal: And if you are going for something neutral, where it is important to assess colour, then you’ll want white light. Not coloured light. Even a hint of warm or cool lights can confuse things. Also – having a hint of light will not allow you to assess your textures and look dev accurately. You may be aiming to create some kind of ‘red’ shader, but as you are also adding some ‘blue light’ (for example) into your scene, your ‘red’ may not look as red as you think it should (even though the parameters in your shader are looking correct). You might then tweak your shader to compensate. Maybe you tweak the colour or add a colour correct node to fight things which gets you closer to your intended ‘red’. That is when things get messy. If you were to drop that into a different lighting environment, it might now look freaky as you’ve tweaked the shader so much). So, presenting the grey/chrome and Macbeth allows people to get an idea of your scene. If you render this out, you should see something like so. You won’t need any lights as this is again, just flat colour. If you review the values of swatch 22, you will see that you get a value of 0.191. Whoop! Whoop!

Notice Lennox’s tone when he is criticising Macbeth in Act 3 Scene 6. How do you think suspicions are growing among the thanes? Who is siding with who and why? Why might the thanes take Macbeth’s side and why might they oppose him?From a measurement and unit standpoint albedo is meant to represent diffuse reflection (of solar irradiance). The problem is as much as you can separate them when you model a BRDF, it is really hard to do so in real life when taking measurements. In a way, specular reflection is almost always a subset of diffuse reflection, it is reflection after all. When the reflectance of a chart is measured, it is done with a precise geometry, e.g. 0:45 (light aligned to the tangent, receiver/sensor at 45deg) and what is measured is the total reflection of the incident light. Because the light irradiance is known, you can then deduce the reflectance of the surface. For example, Roy S. Berns and Lawrence A. Taplin (2006). "Practical Spectral Imaging Using a Color-Filter Array Digital Camera". This objective standard will help you avoid costly mistakes and trial-and-error colour adjustments while editing your images or colour grading.

Whether you are on a film set or in a controlled lit environment for look development, it is important to capture your reference in context. I generally tend to use one of the 2 scenarios below: When he is told that Macduff has deserted him, Macbeth begins the final stage of his tragic descent. His first move is the destruction of Macduff's wife and children. In England, Macduff receives the news at the very moment that he swears his allegiance to the young Malcolm. Malcolm persuades him that the murder of his family should act as the spur to revenge.

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Banquo’s son, who survives Macbeth’s attempt to murder him. At the end of the play, Fleance’s whereabouts are unknown. Presumably, he may come to rule Scotland, fulfilling the witches’ prophecy that Banquo’s sons will sit on the Scottish throne. Lennox You can see from the result that the spheres are very dark but the Macbeth is constant (due to the shader applied). We’ll fix the Macbeth shader but DO NOT change the sphere shaders. We have set them to be correctly calibrated.