Orkuncakilkaya
ae52e9c4da
The shipping default had NO anti-aliasing at all: the temporal resolve was removed, the setting's first option went on saying "Temporal", and MSAA defaults to one sample, so every machine without DLSS drew grass and needle cards with nothing smoothing an edge. FXAA in the sharpen pass, which already reads the neighbourhood and runs last on the LDR image. No history, so it cannot drag or smear a reflection. 25.5% less single-pixel staircase on edge pixels. The trap, recorded because it inverted the result: the unsharp delta must be computed from the RAW image and only then applied to the anti-aliased colour. Centre from FXAA and neighbours from the raw texture measures half smoothing and half signal, so the mask sharpens precisely what FXAA softened - 29% WORSE than no anti-aliasing at all. Depth of field for the photo mode: a disc whose radius is the circle of confusion, normalised by focus distance so a landscape shot is not a macro, with taps rejected unless they are at least as out of focus as the pixel they blur into - which is what stops a sharp foreground haloing into a blurred background. Between the scene and the bloom, so a blurred highlight still blooms. Skipped whole when the aperture is shut. 400 frames in ordinary play: GL 7.1 s, VK 7.2 s - the lens does not draw there. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
28 lines
1.8 KiB
Markdown
28 lines
1.8 KiB
Markdown
bump: minor
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type: feat
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Anti-aliasing that exists, and a lens for the viewfinder.
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THE SHIPPING DEFAULT HAD NO ANTI-ALIASING AT ALL. The temporal resolve was removed (for
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good reasons - it reprojected water through the surface plane and dragged the mirror image
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behind the camera), the setting's first option went on saying "Temporal", and MSAA defaults
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to one sample. Every machine without DLSS - which is every Mac - drew a frame full of grass
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blades and needle cards with nothing smoothing a single edge.
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FXAA now, in the sharpen pass, because that pass already reads this pixel's neighbourhood
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and runs last on the LDR image. It has no history, so it cannot drag or smear a reflection.
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Measured on edge pixels: 25.5% less single-pixel staircase.
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One trap worth recording. The unsharp mask's delta is computed from the RAW image and only
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then applied to the anti-aliased colour. Taking the centre from the FXAA result and the
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neighbours from the raw texture measures a difference that is half smoothing and half
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signal, so the mask sharpens exactly the edges FXAA just softened - measured, that first
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version was 29% WORSE than no anti-aliasing at all.
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And depth of field, for the photo mode: a disc of taps whose radius is the pixel's circle
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of confusion, signed so the two sides of the focal plane differ and normalised by the focus
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distance, because a lens focused at two metres throws a background out far harder than one
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focused at two hundred. A tap only counts if it is at least as out of focus as the pixel
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it is blurring into, which is what keeps a sharp foreground from haloing into a blurred
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background. It runs between the scene and the bloom so a blurred highlight still blooms,
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and the whole pass is skipped when the aperture is shut - in ordinary play there is no lens
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and this never draws.
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