// TODO: exploit a better algorithm, use vertex hash table/map.
//
void mxRenderMesh::WeldVertices()
{
TArray< mxVertex > newVerts;
newVerts.Resize( GetVertexCount() );
for ( u32 triIdx = 0; triIdx < GetTriangleCount(); triIdx++ )
{
IndexTriple & rTri = Triangles[ triIdx ];
for ( TIndex i = 0; i < 3; i++ )
{
const mxVertex & rCurrVertex = Vertices[ rTri[i] ];
s32 iExistingVertex = -1;
for ( TIndex iVtx = 0; iVtx < newVerts.Num(); iVtx++ )
{
if ( VectorsEqual( newVerts[ iVtx ].Pos, rCurrVertex.Pos ) )
{
iExistingVertex = iVtx;
break;
}
}
if ( iExistingVertex != -1 ) {
rTri[ i ] = iExistingVertex;
} else {
rTri[ i ] = newVerts.Append( mxVertex( rCurrVertex ) );
}
}
}
Vertices = newVerts;
}
void BatchRenderer::DrawSolidAABB( const rxAABB& box, const FColor& color )
{
SetBatchState( this, D3D11_PRIMITIVE_TOPOLOGY_TRIANGLELIST );
Unimplemented;
#if 0
enum { NUM_CORNERS = 8 };
enum { NUM_INDICES = 6*2*3 };
static const XMVECTOR verts[NUM_CORNERS] =
{
{ -1, -1, -1, 0 },
{ 1, -1, -1, 0 },
{ 1, -1, 1, 0 },
{ -1, -1, 1, 0 },
{ -1, 1, -1, 0 },
{ 1, 1, -1, 0 },
{ 1, 1, 1, 0 },
{ -1, 1, 1, 0 }
};
static const Index indices[NUM_INDICES]=
{
//
};
enum { NUM_VERTICES = 24 };
enum { NUM_INDICES = 36 };
// Create vertex buffer.
mxVertex vertices[ NUM_VERTICES ];
// Fill in the front face vertex data.
vertices[0] = mxVertex( Vec3D( -0.5f, -0.5f, -0.5f ), Vec2D( 0.0f, 1.0f ), Vec3D( 0.0f, 0.0f, -1.0f ), Vec3D( 1.0f, 0.0f, 0.0f ) );
vertices[1] = mxVertex( Vec3D( -0.5f, 0.5f, -0.5f ), Vec2D( 0.0f, 0.0f ), Vec3D( 0.0f, 0.0f, -1.0f ), Vec3D( 1.0f, 0.0f, 0.0f ) );
vertices[2] = mxVertex( Vec3D( 0.5f, 0.5f, -0.5f ), Vec2D( 1.0f, 0.0f ), Vec3D( 0.0f, 0.0f, -1.0f ), Vec3D( 1.0f, 0.0f, 0.0f ) );
vertices[3] = mxVertex( Vec3D( 0.5f, -0.5f, -0.5f ), Vec2D( 1.0f, 1.0f ), Vec3D( 0.0f, 0.0f, -1.0f ), Vec3D( 1.0f, 0.0f, 0.0f ) );
// Fill in the back face vertex data.
vertices[4] = mxVertex( Vec3D( -0.5f, -0.5f, 0.5f ), Vec2D( 1.0f, 1.0f ), Vec3D( 0.0f, 0.0f, 1.0f ), Vec3D( -1.0f, 0.0f, 0.0f ) );
vertices[5] = mxVertex( Vec3D( 0.5f, -0.5f, 0.5f ), Vec2D( 0.0f, 1.0f ), Vec3D( 0.0f, 0.0f, 1.0f ), Vec3D( -1.0f, 0.0f, 0.0f ) );
vertices[6] = mxVertex( Vec3D( 0.5f, 0.5f, 0.5f ), Vec2D( 0.0f, 0.0f ), Vec3D( 0.0f, 0.0f, 1.0f ), Vec3D( -1.0f, 0.0f, 0.0f ) );
vertices[7] = mxVertex( Vec3D( -0.5f, 0.5f, 0.5f ), Vec2D( 1.0f, 0.0f ), Vec3D( 0.0f, 0.0f, 1.0f ), Vec3D( -1.0f, 0.0f, 0.0f ) );
// Fill in the top face vertex data.
vertices[8] = mxVertex( Vec3D( -0.5f, 0.5f, -0.5f ), Vec2D( 0.0f, 1.0f ), Vec3D( 0.0f, 1.0f, 0.0f ), Vec3D( 1.0f, 0.0f, 0.0f ) );
vertices[9] = mxVertex( Vec3D( -0.5f, 0.5f, 0.5f ), Vec2D( 0.0f, 0.0f ), Vec3D( 0.0f, 1.0f, 0.0f ), Vec3D( 1.0f, 0.0f, 0.0f ) );
vertices[10] = mxVertex( Vec3D( 0.5f, 0.5f, 0.5f ), Vec2D( 1.0f, 0.0f ), Vec3D( 0.0f, 1.0f, 0.0f ), Vec3D( 1.0f, 0.0f, 0.0f ) );
vertices[11] = mxVertex( Vec3D( 0.5f, 0.5f, -0.5f ), Vec2D( 1.0f, 1.0f ), Vec3D( 0.0f, 1.0f, 0.0f ), Vec3D( 1.0f, 0.0f, 0.0f ) );
// Fill in the bottom face vertex data.
vertices[12] = mxVertex( Vec3D( -0.5f, -0.5f, -0.5f ), Vec2D( 1.0f, 1.0f ), Vec3D( 0.0f, -1.0f, 0.0f ), Vec3D( -1.0f, 0.0f, 0.0f ) );
vertices[13] = mxVertex( Vec3D( 0.5f, -0.5f, -0.5f ), Vec2D( 0.0f, 1.0f ), Vec3D( 0.0f, -1.0f, 0.0f ), Vec3D( -1.0f, 0.0f, 0.0f ) );
vertices[14] = mxVertex( Vec3D( 0.5f, -0.5f, 0.5f ), Vec2D( 0.0f, 0.0f ), Vec3D( 0.0f, -1.0f, 0.0f ), Vec3D( -1.0f, 0.0f, 0.0f ) );
vertices[15] = mxVertex( Vec3D( -0.5f, -0.5f, 0.5f ), Vec2D( 1.0f, 0.0f ), Vec3D( 0.0f, -1.0f, 0.0f ), Vec3D( -1.0f, 0.0f, 0.0f ) );
// Fill in the left face vertex data.
vertices[16] = mxVertex( Vec3D( -0.5f, -0.5f, 0.5f ), Vec2D( 0.0f, 1.0f ), Vec3D( -1.0f, 0.0f, 0.0f ), Vec3D( 0.0f, 0.0f, -1.0f ) );
vertices[17] = mxVertex( Vec3D( -0.5f, 0.5f, 0.5f ), Vec2D( 0.0f, 0.0f ), Vec3D( -1.0f, 0.0f, 0.0f ), Vec3D( 0.0f, 0.0f, -1.0f ) );
vertices[18] = mxVertex( Vec3D( -0.5f, 0.5f, -0.5f ), Vec2D( 1.0f, 0.0f ), Vec3D( -1.0f, 0.0f, 0.0f ), Vec3D( 0.0f, 0.0f, -1.0f ) );
vertices[19] = mxVertex( Vec3D( -0.5f, -0.5f, -0.5f ), Vec2D( 1.0f, 1.0f ), Vec3D( -1.0f, 0.0f, 0.0f ), Vec3D( 0.0f, 0.0f, -1.0f ) );
// Fill in the right face vertex data.
vertices[20] = mxVertex( Vec3D( 0.5f, -0.5f, -0.5f ), Vec2D( 0.0f, 1.0f ), Vec3D( 1.0f, 0.0f, 0.0f ), Vec3D( 0.0f, 0.0f, 1.0f ) );
vertices[21] = mxVertex( Vec3D( 0.5f, 0.5f, -0.5f ), Vec2D( 0.0f, 0.0f ), Vec3D( 1.0f, 0.0f, 0.0f ), Vec3D( 0.0f, 0.0f, 1.0f ) );
vertices[22] = mxVertex( Vec3D( 0.5f, 0.5f, 0.5f ), Vec2D( 1.0f, 0.0f ), Vec3D( 1.0f, 0.0f, 0.0f ), Vec3D( 0.0f, 0.0f, 1.0f ) );
vertices[23] = mxVertex( Vec3D( 0.5f, -0.5f, 0.5f ), Vec2D( 1.0f, 1.0f ), Vec3D( 1.0f, 0.0f, 0.0f ), Vec3D( 0.0f, 0.0f, 1.0f ) );
// Scale the box.
{
const Vec3D vScale( length, height, depth );
Matrix4 scaleMat( Matrix4::CreateScale( vScale ) );
Matrix4 invTranspose( scaleMat.Inverse().Transpose() );
for(UINT i = 0; i < NUM_VERTICES; ++i)
{
vertices[i].xyz = scaleMat.TransformVector( vertices[i].xyz );
vertices[i].N = invTranspose.TransformNormal( vertices[i].N );
vertices[i].T = invTranspose.TransformNormal( vertices[i].T );
}
}
// Create the index buffer.
rxIndex indices[ NUM_INDICES ];
// Fill in the front face index data
indices[0] = 0; indices[1] = 1; indices[2] = 2;
indices[3] = 0; indices[4] = 2; indices[5] = 3;
// Fill in the back face index data
indices[6] = 4; indices[7] = 5; indices[8] = 6;
indices[9] = 4; indices[10] = 6; indices[11] = 7;
// Fill in the top face index data
indices[12] = 8; indices[13] = 9; indices[14] = 10;
indices[15] = 8; indices[16] = 10; indices[17] = 11;
// Fill in the bottom face index data
indices[18] = 12; indices[19] = 13; indices[20] = 14;
indices[21] = 12; indices[22] = 14; indices[23] = 15;
// Fill in the left face index data
indices[24] = 16; indices[25] = 17; indices[26] = 18;
indices[27] = 16; indices[28] = 18; indices[29] = 19;
// Fill in the right face index data
indices[30] = 20; indices[31] = 21; indices[32] = 22;
indices[33] = 20; indices[34] = 22; indices[35] = 23;
newMesh->vertices.SetNum( NUM_VERTICES );
MemCopy( newMesh->vertices.ToPtr(), vertices, sizeof(vertices) );
newMesh->indices.SetNum( NUM_INDICES );
MemCopy( newMesh->indices.ToPtr(), indices, sizeof(indices) );
#endif
}