How to convert XMFLOAT3 to const float *pData?

Question

I have the following code:

XMFLOAT3 normalized_direction = XMVector3Normalize(direction);
pEffect->GetVariableByName("g_CameraDirection")->AsVector()->SetFloatVector(normalized_direction);

I want to pass XMFLOAT3 in const float *pData ?

score 1 · Accepted Answer · answered Jan 15 '14 at 19:06

1

You can reference the first entry of your vector:

... ->SetFloatVector(&normalized_direction.x);

answered Jan 15 '14 at 19:06

Nico Schertler

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But what if he asks for Matrix? – Faisal Jan 15 '14 at 21:47
The first element of a `XMFLOAT4X4` is `_11`, so reference that. – Nico Schertler Jan 16 '14 at 09:16
I needed the first element of anything, my question doesn't make sense, now I understand thank you for your help. – Faisal Jan 16 '14 at 10:26

How to convert XMFLOAT3 to const float *pData?

1 Answers1