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Auto disable billboards for 3D models (#579)

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PeachyPeach 2024-12-22 13:54:45 +01:00 committed by GitHub
parent 16e78ee36a
commit f1e216649d
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GPG key ID: B5690EEEBB952194
2 changed files with 29 additions and 2 deletions
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24
data/dynos_bin_vtx.cpp
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@ -141,6 +141,30 @@ void DynOS_Vtx_Load(BinFile *aFile, GfxData *aGfxData) {
}
}
// Billboard check
if (!(_Node->mFlags & GRAPH_EXTRA_FORCE_3D)) {
Vec3f pn = { 0, 0, 0 };
for (u32 i = 2; i < _Node->mSize; ++i) {
Vec3f p0; vec3f_copy(p0, _Node->mData[i - 2].v.ob);
Vec3f p1; vec3f_copy(p1, _Node->mData[i - 1].v.ob);
Vec3f p2; vec3f_copy(p2, _Node->mData[i - 0].v.ob);
Vec3f v0; vec3f_dif(v0, p0, p1);
Vec3f v1; vec3f_dif(v1, p1, p2);
Vec3f vn; vec3f_cross(vn, v0, v1);
if (vn[0] != 0.f || vn[1] != 0.f || vn[2] != 0.f) { // skip zero normals
vec3f_normalize(vn);
if (pn[0] != 0.f || pn[1] != 0.f || pn[2] != 0.f) { // don't compare to zero normal
f32 dot = vec3f_dot(vn, pn);
if (dot < 0.9f) { // Points don't form a plane -> no billboard
_Node->mFlags |= GRAPH_EXTRA_FORCE_3D;
break;
}
}
vec3f_copy(pn, vn);
}
}
}
// Append
aGfxData->mVertices.Add(_Node);
}

7
data/dynos_mgr_pack.cpp
View file

@ -54,8 +54,11 @@ static void DynOS_Pack_ActivateActor(s32 aPackIndex, Pair<const char *, GfxData
actorGfx.mGraphNode = graphNode;
actorGfx.mPackIndex = aPackIndex;
if (geoNode->mFlags & GRAPH_EXTRA_FORCE_3D) {
actorGfx.mGraphNode->extraFlags |= GRAPH_EXTRA_FORCE_3D;
for (const auto &vtxNode : aGfxData->mVertices) {
if (vtxNode->mFlags & GRAPH_EXTRA_FORCE_3D) {
actorGfx.mGraphNode->extraFlags |= GRAPH_EXTRA_FORCE_3D;
break;
}
}
DynOS_Actor_Valid(georef, actorGfx);