From: Paul Cercueil <paul@crapouillou.net>
Date: Tue, 31 Oct 2023 17:11:39 +0000 (+0100)
Subject: unai: Use 8.8 RGB triplet format for gouraud shading
X-Git-Tag: r24~64
X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b3bce60ef65914650716c6caea21480071e3405c;hp=b3bce60ef65914650716c6caea21480071e3405c;p=pcsx_rearmed.git

unai: Use 8.8 RGB triplet format for gouraud shading

Use a new 'gcol_t' type which fits in 64 bits, and encode each color
component into a 8.8 fixed-point format.

This boosts the precision of the gouraud shading algorithm, at almost
zero cost.

Fixes #320.

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
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