![]() Ī debug chromaticity diagram showing Rec2020 color gamut. Because color gamut is usually displayed as CIE xy chromaticity diagram, I used to think of a given RGB value as a color interpolated inside the Red/Green/Blue gamut triangle using the barycentric coordinates. I was confused about using negative values to represent a color (as well as intensity) at first. scRGB use the same color primaries at Rec709, which support wide color using negative values. But it is recommended to use scRGB color space on Windows. Rec2020 color space is the common HDR10 format with PQ EOTF. scRGB color space (DXGI_FORMAT_R16G16B16A16_FLOAT + DXGI_COLOR_SPACE_RGB_FULL_G10_NONE_P709) There are 2 swapchain formats/color spaces can be chosen to output HDR images on HDR capable monitor/TV:ġ. The updated demo can be downloaded here.Ī photo of my HDR TV to show the difference between SDR and HDR path trace at 1080, and bilinear upscale to 4K.) and added dithering to tone mapped output to reduce color banding (Integer back buffer format only). It also has various small features updated such as adding per monitor high DPI support, path trace resolution scale (e.g. Continue with the DXR Path Tracer in the last post, I updated the demo to support HDR display. ![]()
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