Stride

You, sir, make no sense. What on earth are you talking about?

what are you talking about? Please give more information, your question is very vague, i cant even tell what kind of stride you are talking about.

Let me try to explain this better.

First

unsigned int m_Stride;
 

HRESULT f_IDirect3DDevice8::SetStreamSource(UINT StreamNumber, IDirect3DVertexBuffer8 *pStreamData, UINT Stride) {
	if (StreamNumber == 0)
		m_Stride = Stride;
	return f_pDirect3DDevice->SetStreamSource(StreamNumber, pStreamData, Stride);
}
 

Then

HRESULT f_IDirect3DDevice8::DrawIndexedPrimitive(D3DPRIMITIVETYPE Type, UINT MinIndex, UINT NumVertices, UINT StartIndex, UINT PrimitiveCount) {
	if (Lambert) {
		if(m_Stride == 32) {
		   DWORD old_state;
 			f_pDirect3DDevice->CreateStateBlock(D3DSBT_ALL, &old_state);
 			f_pDirect3DDevice->CaptureStateBlock(old_state);			
        
			f_pDirect3DDevice->SetRenderState( D3DRS_LIGHTING, TRUE );

			f_pDirect3DDevice->SetLight( 0, &Light );
			f_pDirect3DDevice->LightEnable( 0, true ); 


		   HRESULT hResult = f_pDirect3DDevice->DrawIndexedPrimitive(Type, MinIndex, NumVertices, StartIndex, PrimitiveCount);

			  f_pDirect3DDevice->ApplyStateBlock(old_state);
 			f_pDirect3DDevice->DeleteStateBlock(old_state);
			 	
 			return hResult;	
		}
	}

	return f_pDirect3DDevice->DrawIndexedPrimitive(Type, MinIndex, NumVertices, StartIndex, PrimitiveCount);
}
 

Somehow this makes it so that the player models in the game glow the color you have specified in Light. I really don''t understand how if m_Stride equals 32 that it would select only the player models.

I don''t know Jack about DirectX since I don''t use Windows, but it looks like Stride is actually the size of each individual vertex data element.

It looks like that SetStreamSource() function accepts a pointer to an array of vertex data. Stride is the size of each element in the array.

Say you have a vertex with the following members:

struct Vertex{
float x, y, z;
float r, g, b;
};

Where x,y,z is the vertex coordinates, and r,g,b is the diffuse color. The Stride of an array of these Vertex structures would be 6*sizeof(float), or sizeof(Vertex).
The function needs this Stride information in the case where vertex data can be of any format you wish to specify; Stride tells the function what to add to move to the next Vertex structure.

Or, so it looks to me.


Josh
vertexnormal AT linuxmail DOT org

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This would probably be better off in the Game Programming forum

I would like to hear what you mean by "almost made".