I have added this line into the state machine of the fixed pipeline, but still didn't work. Any ideas why?
m_pDevice->SetRenderState(D3DRS_DIFFUSEMATERIALSOURCE, D3DMCS_MATERIAL);
https://msdn.microsoft.com/en-us/library/windows/desktop/bb147177%28v=vs.85%29.aspx
m_pDevice->SetRenderState(D3DRS_DIFFUSEMATERIALSOURCE, D3DMCS_MATERIAL);
That bit of code says that the fixed-function shader will use the "material" diffuse colour when shading.
How does this relate to the question? What does the rest of your fixed-function shader configuration look like? Are you even using fixed-function shading? What does the question even mean? What do you want the "colors with alpha channel" to do?
I got a model in which some parts I want to be able to see through. Actually I l already had the alpha render state attribute enabled
like
bool CMyApp::RestoreGameState()
{
m_pFont->RestoreDeviceObjects();
// restore device states
m_pDevice->SetTransform(D3DTS_PROJECTION, m_Cam.GetProjMatrix());
m_pDevice->SetRenderState(D3DRS_LIGHTING, true);
m_pDevice->SetRenderState(D3DRS_AMBIENT, D3DCOLOR_COLORVALUE(0.5, 0.5, 0.5, 0.0));
m_pDevice->SetRenderState(D3DRS_ALPHABLENDENABLE, true);
m_pDevice->SetRenderState(D3DRS_DIFFUSEMATERIALSOURCE, D3DMCS_MATERIAL);
// normalize since objects are being scaled therefore normals aren't correct anymore
m_pDevice->SetRenderState(D3DRS_NORMALIZENORMALS, true);
m_pDevice->SetSamplerState( 0, D3DSAMP_MINFILTER, D3DTEXF_LINEAR );
m_pDevice->SetSamplerState( 0, D3DSAMP_MAGFILTER, D3DTEXF_LINEAR );
m_pDevice->SetSamplerState( 0, D3DSAMP_MIPFILTER, D3DTEXF_LINEAR );
m_pDevice->LightEnable(DIRECTIONAL, true);
m_pDevice->LightEnable(POINT, true);
SetClearColor(175, 175, 175);
return true;
}
The material samples I took from the debugger did have the alpha values of less than 1.0.
But the colors of the materials are solid. I didn't set up the textures for those objects.
The restoregamestate looks alright I think, doesn't it?
I got lights setup. What did I miss out?
Thanks
Jack
You need to have Alpha Blending enable otherwise your alpha value will not affect anything. You might also want to set SrcBlend to SrcAlpha and DestBlend to InvSrcAlpha.
