Method RenderBackgroundVelocity

MSAAFilter/MSAAFilter.cpp:377–423

}

void MSAAFilter::RenderBackgroundVelocity()
{
    PIXEvent pixEvent(L"Render Background Velocity");

    ID3D11DeviceContextPtr context = deviceManager.ImmediateContext();

    SetViewport(context, velocityTarget.Width, velocityTarget.Height);

    // Don't use camera translation for background velocity
    FirstPersonCamera tempCamera = camera;
    tempCamera.SetPosition(Float3(0.0f, 0.0f, 0.0f));

    backgroundVelocityConstants.Data.InvViewProjection = Float4x4::Transpose(Float4x4::Invert(tempCamera.ViewProjectionMatrix()));
    backgroundVelocityConstants.Data.PrevViewProjection = Float4x4::Transpose(prevViewProjection);
    backgroundVelocityConstants.Data.RTSize.x = float(velocityTarget.Width);
    backgroundVelocityConstants.Data.RTSize.y = float(velocityTarget.Height);
    backgroundVelocityConstants.Data.JitterOffset = jitterOffset;
    backgroundVelocityConstants.ApplyChanges(context);
    backgroundVelocityConstants.SetPS(context, 0);

    prevViewProjection = tempCamera.ViewProjectionMatrix();

    float blendFactor[4] = { 1.0f, 1.0f, 1.0f, 1.0f };
    context->OMSetBlendState(blendStates.BlendDisabled(), blendFactor, 0xFFFFFFFF);
    context->OMSetDepthStencilState(depthStencilStates.DepthEnabled(), 0);
    context->RSSetState(rasterizerStates.NoCull());

    ID3D11RenderTargetView* rtvs[1] = { velocityTarget.RTView };
    context->OMSetRenderTargets(1, rtvs, depthBuffer.DSView);

    context->VSSetShader(backgroundVelocityVS, nullptr, 0);
    context->PSSetShader(backgroundVelocityPS, nullptr, 0);
    context->GSSetShader(nullptr, nullptr, 0);
    context->HSSetShader(nullptr, nullptr, 0);
    context->DSSetShader(nullptr, nullptr, 0);

    ID3D11Buffer* vbs[1] = { nullptr };
    UINT strides[1] = { 0 };
    UINT offsets[1] = { 0 };
    context->IASetVertexBuffers(0, 1, vbs, strides, offsets);
    context->IASetInputLayout(nullptr);
    context->IASetIndexBuffer(nullptr, DXGI_FORMAT_R16_UINT, 0);
    context->Draw(3, 0);

    rtvs[0] = nullptr;
    context->OMSetRenderTargets(1, rtvs, nullptr);
}

void MSAAFilter::RenderHUD()
{