In the UV/Image Editor, I can right-click and hover the mouse over the image to get the colour values of the pixel currently under the cursor.
The screenshot will show you what I mean.
This is enough in most cases, but when I am lighting my models, I would like to be able to get accurate values of the colours, but the problem is, the UV/Image Editor doesn’t interactively update the render result if I change anything in the viewport.
The only way, as far as I know, to get renders to update automatically is to use the ‘Rendered’ shading mode in the viewport. So here is my question, is there a way I can get the colour values of the pixels like I do in the UV/Image Editor?
I looked around, but couldn’t find any information. Any idea is welcome, even if it needs some Python scripting.