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ADD: BVH Selection ongoing

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This commit is contained in:
hydrogendeuteride
2025-11-19 16:24:32 +09:00
parent 46761a5598
commit 4061cbed4a
8 changed files with 136 additions and 18 deletions
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12
src/scene/vk_loader.cpp
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@@ -18,6 +18,7 @@
#include <fastgltf/util.hpp>
#include <optional>
#include "tangent_space.h"
#include "mesh_bvh.h"
//> loadimg
std::optional<AllocatedImage> load_image(VulkanEngine *engine, fastgltf::Asset &asset, fastgltf::Image &image, bool srgb)
{
@@ -592,18 +593,25 @@ std::optional<std::shared_ptr<LoadedGLTF> > loadGltf(VulkanEngine *engine, std::
newSurface.bounds.origin = (maxpos + minpos) / 2.f;
newSurface.bounds.extents = (maxpos - minpos) / 2.f;
newSurface.bounds.sphereRadius = glm::length(newSurface.bounds.extents);
newSurface.bounds.type = BoundsType::Box;
newSurface.bounds.type = BoundsType::Mesh;
}
else
{
newSurface.bounds.origin = glm::vec3(0.0f);
newSurface.bounds.extents = glm::vec3(0.5f);
newSurface.bounds.sphereRadius = glm::length(newSurface.bounds.extents);
newSurface.bounds.type = BoundsType::Box;
newSurface.bounds.type = BoundsType::Mesh;
}
newmesh->surfaces.push_back(newSurface);
}
// Build CPU BVH for precise picking over this mesh (triangle-level).
{
std::span<const Vertex> vSpan(vertices.data(), vertices.size());
std::span<const uint32_t> iSpan(indices.data(), indices.size());
newmesh->bvh = build_mesh_bvh(*newmesh, vSpan, iSpan);
}
newmesh->meshBuffers = engine->_resourceManager->uploadMesh(indices, vertices);
// If CPU vectors ballooned for this mesh, release capacity back to the OS
auto shrink_if_huge = [](auto &vec, size_t elemSizeBytes) {