_Use_decl_annotations_
void KdTreeCompiler2::BuildVisibleIndexList(const XMMATRIX& cameraWorld, const XMMATRIX& projection, uint32_t* indices, uint32_t maxIndices, uint32_t* numIndices, uint32_t* materials, uint32_t maxMaterials, uint32_t* numMaterials)
{
*numIndices = 0;
*numMaterials = 0;
// TODO: Remove dependency on BoundingFrustum. Since all we
// need is the 4 corners, we can derive those directly from view & projection
BoundingFrustum frustum;
BoundingFrustum::CreateFromMatrix(frustum, projection);
frustum.Transform(frustum, cameraWorld);
XMFLOAT3 corners[8];
frustum.GetCorners(corners);
XMFLOAT3 min = corners[0];
XMFLOAT3 max = corners[0];
for (uint32_t i = 1; i < 8; ++i)
{
min = VecMin(min, corners[i]);
max = VecMax(max, corners[i]);
}
XMFLOAT3 position;
XMStoreFloat3(&position, cameraWorld.r[3]);
AppendVisibleIndices(&position.x, &min.x, &max.x, _root, indices, maxIndices, numIndices, materials, maxMaterials, numMaterials);
}
void QuadTree::Render(ID3D11DeviceContext* DeviceContext, const XMMATRIX &projection, const XMMATRIX &view)
{
//Frust på Projection sen multiplicera med inverse proj inverse view iverse world.
BoundingFrustum frust;//göra om frustumet till worldspace för boxarna...
frust.CreateFromMatrix(frust, projection);
frust.Transform(frust, XMMatrixInverse(nullptr, view));//FUNKAR TESTAT!
//if (frust.Intersects(box))
//{
// if (!leaf)
// {
// for (int i = 0; i < 4; i++)
// {
// Children[i].Render(DeviceContext, projection,view,World);
// }
// }
// else
// {
// UINT32 vertexSize = sizeof(Vertex);
// UINT32 offset = 0;
// DeviceContext->IASetIndexBuffer(IndexB, DXGI_FORMAT_R32_UINT, 0);
// DeviceContext->IASetVertexBuffers(0, 1, &VertexB, &vertexSize, &offset);
// DeviceContext->IASetPrimitiveTopology(D3D11_PRIMITIVE_TOPOLOGY_TRIANGLELIST);
// DeviceContext->DrawIndexed(nrIndices, 0, 0);
// }
int testValue = frust.Contains(box);
switch (testValue)
{
case 0:
break;
case 1:
if (!leaf)
{
for (int i = 0; i < 4; i++)
{
Children[i].Render(DeviceContext, projection,view);
}
}
else
{
UINT32 vertexSize = sizeof(Vertex);
UINT32 offset = 0;
DeviceContext->IASetIndexBuffer(IndexB, DXGI_FORMAT_R32_UINT, 0);
DeviceContext->IASetVertexBuffers(0, 1, &VertexB, &vertexSize, &offset);
DeviceContext->IASetPrimitiveTopology(D3D11_PRIMITIVE_TOPOLOGY_TRIANGLELIST);
DeviceContext->DrawIndexed(nrIndices, 0, 0);
}
break;
default:
if (!leaf)
{
for (int i = 0; i < 4; i++)
{
Children[i].Render(DeviceContext, projection, view);
}
}
else
{
UINT32 vertexSize = sizeof(Vertex);
UINT32 offset = 0;
DeviceContext->IASetIndexBuffer(IndexB, DXGI_FORMAT_R32_UINT, 0);
DeviceContext->IASetVertexBuffers(0, 1, &VertexB, &vertexSize, &offset);
DeviceContext->IASetPrimitiveTopology(D3D11_PRIMITIVE_TOPOLOGY_TRIANGLELIST);
DeviceContext->DrawIndexed(nrIndices, 0, 0);
}
break;
}
}