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GS: Predivide ST by Q on large equal-Q triangles 

In addition to sprites.

Fixes intro screen of IndyCar Series, which uses rotated sprites (tris).
Fixes some onscreen sprites in SpongeBob SquarePants - Revenge of the Flying Dutchman.
Fixes menu background in Cold Winter.
Fixes health bars in Biker Mice From Mars.
This commit is contained in:
Stenzek 2024-04-30 01:39:20 +10:00 committed by Connor McLaughlin
parent fd0c82c04a
commit 40c7982dcf
1 changed files with 14 additions and 0 deletions
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14
pcsx2/GS/Renderers/HW/GSRendererHW.cpp
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@ -3423,6 +3423,20 @@ void GSRendererHW::SetupIA(float target_scale, float sx, float sy)
{
m_conf.topology = GSHWDrawConfig::Topology::Triangle;
m_conf.indices_per_prim = 3;
// See note above in GS_SPRITE_CLASS.
if (m_vt.m_accurate_stq && m_vt.m_eq.stq) [[unlikely]]
{
GSVertex* const v = m_vertex.buff;
const GSVector4 v_q = GSVector4(v[0].RGBAQ.Q);
for (u32 i = 0; i < m_vertex.next; i++)
{
// v[i].ST.ST /= v[i].RGBAQ.Q; v[i].RGBAQ.Q = 1.0f; (Q / Q = 1)
GSVector4 v_st = GSVector4::load<true>(&v[i].ST);
v_st = (v_st / v_q).insert32<2, 2>(v_st);
GSVector4::store<true>(&v[i].ST, v_st);
}
}
}
break;