38 lines
1.5 KiB
Markdown
38 lines
1.5 KiB
Markdown
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# Debugging NRD
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Currently NRD plugin supports debbugging through the validation layer.
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# VALIDATION LAYER
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If `NRDCommonSettings::enableValidation = true` *REBLUR* & *RELAX* denoisers render debug information into `OUT_VALIDATION` output. Alpha channel contains layer transparency to allow easy mix with the final image on the application side. Currently the following viewport layout is used on the screen:
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| 0 | 1 | 2 | 3 |
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|---|---|---|---|
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| 4 | 5 | 6 | 7 |
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| 8 | 9 | 10| 11|
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| 12| 13| 14| 15|
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where:
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- Viewport 0 - world-space normals
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- Viewport 1 - linear roughness
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- Viewport 2 - linear viewZ
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- green = `+`
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- blue = `-`
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- red = `out of denoising range`
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- Viewport 3 - difference between MVs, coming from `IN_MV`, and expected MVs, assuming that the scene is static
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- blue = `out of screen`
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- pixels with moving objects have non-0 values
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- Viewport 4 - world-space grid & camera jitter:
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- 1 cube = `1 unit`
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- the square in the bottom-right corner represents a pixel with accumulated samples
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- the red boundary of the square marks jittering outside of the pixel area
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*REBLUR* specific:
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- Viewport 7 - amount of virtual history
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- Viewport 8 - number of accumulated frames for diffuse signal (red = `history reset`)
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- Viewport 11 - number of accumulated frames for specular signal (red = `history reset`)
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- Viewport 12 - input normalized `hitT` for diffuse signal (ambient occlusion, AO)
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- Viewport 15 - input normalized `hitT` for specular signal (specular occlusion, SO)
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