void InClassProj::DrawParticles()
{
XMVECTOR eyePos = m2DCam->GetPos();
XMMATRIX proj = XMLoadFloat4x4(&mProj);
XMMATRIX view = m2DCam->GetView();
XMMATRIX vp = view * proj;
mParticleEffect->SetPerFrameParams(eyePos);
mParticleEffect->SetPerObjectParams(vp, mParticleTexture);
md3dImmediateContext->IASetPrimitiveTopology(D3D11_PRIMITIVE_TOPOLOGY_POINTLIST);
md3dImmediateContext->IASetInputLayout(Vertex::GetParticleVertLayout());
UINT stride = sizeof(Vertex::ParticleVertex);
UINT offset = 0;
md3dImmediateContext->IASetVertexBuffers(0, 1, &mParticleVB, &stride, &offset);
md3dImmediateContext->OMSetDepthStencilState(mNoDepthDS, 0);
float blendFactor[4] = { 0.0f, 0.0f, 0.0f, 0.0f };
md3dImmediateContext->OMSetBlendState(mAdditiveBS, blendFactor, 0xffffffff);
D3DX11_TECHNIQUE_DESC techDesc;
mParticleEffect->GetTech()->GetDesc(&techDesc);
for (UINT p = 0; p < techDesc.Passes; ++p)
{
mParticleEffect->GetTech()->GetPassByIndex(p)->Apply(0, md3dImmediateContext);
md3dImmediateContext->Draw(mParticles.size(), 0);
}
md3dImmediateContext->OMSetBlendState(0, blendFactor, 0xffffffff);
md3dImmediateContext->OMSetDepthStencilState(NULL, 0);
}
