- Aug 22, 2021
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To be more specific:
When you render a scene, every pixel of the render stores the results of the light calculations in a 32-bit floating point number. This is called "linear" or "scene-referred". As long as the image is stored in Blender's memory, you have access to all 32-bits of data. This gives you a lot of precision in color grading. The reason it looks muted and gray is because your monitor can only output a limited range of color (one byte per RGB channel). So a huge range of color is scaled down to your monitor's color range to let you see it. But when you use the compositor, you're still operating on that scene-referred data from the renderer for maximum flexibility.
Soon as you save your render in PNG or JPG format, it's chopped down into the limited range of color your monitor can display. It becomes "display-referred". All the extra data is lost. With a filmic render, you at least have the whole spectum of color data saved out and can use that in an image editor. But Daz Studio can't even do filmic renders, it only outputs display-referred images (unless you use canvases, I think). So while Iray is creating 32-bit float data, Daz Studio discards everything that goes above 1.0, which is why the highlights are horribly blown out in my test render.
If you want to save scene-referred data for use in an image editor, save in OpenEXR format.
tl;dr "muted and gray" = better range of colors
When you render a scene, every pixel of the render stores the results of the light calculations in a 32-bit floating point number. This is called "linear" or "scene-referred". As long as the image is stored in Blender's memory, you have access to all 32-bits of data. This gives you a lot of precision in color grading. The reason it looks muted and gray is because your monitor can only output a limited range of color (one byte per RGB channel). So a huge range of color is scaled down to your monitor's color range to let you see it. But when you use the compositor, you're still operating on that scene-referred data from the renderer for maximum flexibility.
Soon as you save your render in PNG or JPG format, it's chopped down into the limited range of color your monitor can display. It becomes "display-referred". All the extra data is lost. With a filmic render, you at least have the whole spectum of color data saved out and can use that in an image editor. But Daz Studio can't even do filmic renders, it only outputs display-referred images (unless you use canvases, I think). So while Iray is creating 32-bit float data, Daz Studio discards everything that goes above 1.0, which is why the highlights are horribly blown out in my test render.
If you want to save scene-referred data for use in an image editor, save in OpenEXR format.
tl;dr "muted and gray" = better range of colors
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