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Y is inverted with ID3DXSprite

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Why does positive Y go down with the ID3DXSprite? My world Y positive goes up. Doesn''t most? Who wants everything above the ground to be negative? When using the D3DXSPRITE_OBJECTSPACE flag, the quads that ID3DXSprite is creating have the vertices on the top at the bottom. Does that make any sense? The only solution I know of is to rotate X or Z to D3DX_PI. But this causes other complications. Anyone else able to fix this problem?

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