// getCorner: return cached/new corner with the given lattice location
const HashedCubeCorner *IsoSurfacePolygonizer::getCorner(int i, int j, int k) {
const Point3DKey key(i, j, k, 0);
const HashedCubeCorner *result = m_cornerMap.get(key);
if(result != NULL) {
m_statistics.m_cornerHits++;
return result;
} else {
HashedCubeCorner corner(key, getCornerPoint(key));
corner.setValue(evaluate(corner));
m_cornerMap.put(key, corner);
return m_cornerMap.get(key);
}
}
void occlusionCulling(std::list<std::shared_ptr<DRBData>> &list, bool drawDebugLines)
{
SCOPE_profile_cpu_function("Camera system");
auto depthMap = GetRenderThread()->getDepthMapManager().getReadableMap();
//for (auto &e : cameraList->meshs)
//{
// readableDepthMap->testBox()
//}
if (depthMap.isValid() == false)
{
return;
}
auto j = list.begin();
while (j != std::end(list))
{
auto &d = *j;
auto mesh = std::static_pointer_cast<DRBMeshData>(d);
if (mesh->hadRenderMode(AGE_OCCLUDER))
{
++j;
continue;
}
auto BB = mesh->getAABB();
glm::vec2 minPoint = glm::vec2(1);
glm::vec2 maxPoint = glm::vec2(-1);
float minZ = std::numeric_limits<float>::max();
for (std::size_t i = 0; i < 8; ++i)
{
auto point = depthMap->getMV() * d->getTransformation() * glm::vec4(BB.getCornerPoint(i), 1.0f);
point /= point.w;
if (point.x < -1)
{
point.x = -1;
}
if (point.y < -1)
{
point.y = -1;
}
if (point.x > 1)
{
point.x = 1;
}
if (point.y > 1)
{
point.y = 1;
}
minPoint.x = std::min(minPoint.x, point.x);
minPoint.y = std::min(minPoint.y, point.y);
maxPoint.x = std::max(maxPoint.x, point.x);
maxPoint.y = std::max(maxPoint.y, point.y);
point.z = (point.z + 1.0f) * 0.5f;
minZ = std::min(minZ, point.z);
}
glm::uvec2 screenMin(((minPoint + glm::vec2(1)) / glm::vec2(2)) * glm::vec2(depthMap->getMipmapWidth(), depthMap->getMipmapHeight()));
glm::uvec2 screenMax(((maxPoint + glm::vec2(1)) / glm::vec2(2)) * glm::vec2(depthMap->getMipmapWidth(), depthMap->getMipmapHeight()));
if (minZ < 0)
{
minZ = 0;
}
if (depthMap->testBox((uint32_t)(minZ * (1 << 24)), screenMin, screenMax) == false)
{
list.erase(j++);
continue;
}
if (drawDebugLines)
{
GetRenderThread()->getQueue()->emplaceTask<AGE::Commands::ToRender::Draw2DQuad>(glm::vec2(minPoint.x, minPoint.y), glm::vec2(minPoint.x, maxPoint.y), glm::vec2(maxPoint.x, maxPoint.y), glm::vec2(maxPoint.x, minPoint.y), glm::vec3(0, 1, 0));
}
++j;
}
}
