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lightpreview: fix bmodel rendering when vis culling is in use

This commit is contained in:
Eric Wasylishen 2023-07-30 12:21:54 -06:00
parent 7b83aa5976
commit 9f7ba65758
3 changed files with 31 additions and 4 deletions
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19
common/bsputils.cc
View File

@ -719,6 +719,25 @@ std::unordered_map<int, std::vector<uint8_t>> DecompressAllVis(const mbsp_t *bsp
return result;
}
static void BSP_VisitAllLeafs_R(
const mbsp_t &bsp, const int nodenum, const std::function<void(const mleaf_t &)> &visitor)
{
if (nodenum < 0) {
auto *leaf = BSP_GetLeafFromNodeNum(&bsp, nodenum);
visitor(*leaf);
return;
}
const bsp2_dnode_t &node = bsp.dnodes.at(nodenum);
BSP_VisitAllLeafs_R(bsp, node.children[0], visitor);
BSP_VisitAllLeafs_R(bsp, node.children[1], visitor);
}
void BSP_VisitAllLeafs(const mbsp_t &bsp, const dmodelh2_t &model, const std::function<void(const mleaf_t &)> &visitor)
{
BSP_VisitAllLeafs_R(bsp, model.headnode[0], visitor);
}
bspx_decoupled_lm_perface BSPX_DecoupledLM(const bspxentries_t &entries, int face_num)
{
auto &lump_bytes = entries.at("DECOUPLED_LM");

2
include/common/bsputils.hh
View File

@ -116,6 +116,8 @@ int LeafnumToVisleaf(int leafnum);
void DecompressVis(const uint8_t *in, const uint8_t *inend, uint8_t *out, uint8_t *outend);
std::unordered_map<int, std::vector<uint8_t>> DecompressAllVis(const mbsp_t *bsp, bool trans_water = false);
void BSP_VisitAllLeafs(const mbsp_t &bsp, const dmodelh2_t &model, const std::function<void(const mleaf_t &)> &visitor);
bspx_decoupled_lm_perface BSPX_DecoupledLM(const bspxentries_t &entries, int face_num);
std::optional<bspxfacenormals> BSPX_FaceNormals(const mbsp_t &bsp, const bspxentries_t &entries);

14
lightpreview/glview.cpp
View File

@ -396,16 +396,22 @@ void GLView::updateFaceVisibility()
std::vector<uint8_t> face_flags;
face_flags.resize(face_visibility_width, 0);
// check all leafs
// FIXME: only world?
for (auto &leaf : bsp.dleafs) {
// visit all world leafs: if they're visible, mark the appropriate faces
BSP_VisitAllLeafs(bsp, bsp.dmodels[0], [&](const mleaf_t &leaf) {
if (leaf_sees(&leaf)) {
for (int ms = 0; ms < leaf.nummarksurfaces; ++ms) {
int fnum = bsp.dleaffaces[leaf.firstmarksurface + ms];
face_flags[fnum] = 16;
}
}
});
// set all bmodel faces to visible
for (int mi = 1; mi < bsp.dmodels.size(); ++mi) {
auto &model = bsp.dmodels[mi];
for (int fi = model.firstface; fi < (model.firstface + model.numfaces); ++fi) {
face_flags[fi] = 16;
}
}
setFaceVisibilityArray(face_flags.data());