void RenderLightShadingPass(){  //Render pass 3
    gDeviceContext->IASetPrimitiveTopology(D3D_PRIMITIVE_TOPOLOGY_TRIANGLESTRIP);   //kan byta till LIST nen då krävs 6 drawcalls

    gDeviceContext->IASetInputLayout(NULL);

    gDeviceContext->OMSetRenderTargets(1, &gLightShadingPassRTV, nullptr);  //riktiga

    //--------------------

    gDeviceContext->VSSetShader(gVertexShaderLightShadingPass, nullptr, 0);
    gDeviceContext->HSSetShader(nullptr, nullptr, 0);
    gDeviceContext->DSSetShader(nullptr, nullptr, 0);
    gDeviceContext->GSSetShader(nullptr, nullptr, 0);
    gDeviceContext->PSSetShader(gPixelShaderLightShadingPass, nullptr, 0);

    //--------------------

    gDeviceContext->IASetVertexBuffers(0, 0, nullptr, nullptr, nullptr);

    gDeviceContext->PSSetConstantBuffers(0, 1, &LightBuffer_1); //light
    gDeviceContext->PSSetConstantBuffers(1, 1, &CamPosBuffer);
    gDeviceContext->PSSetConstantBuffers(2, 1, &ShadowBuffer_1);
    gDeviceContext->PSSetConstantBuffers(3, 1, &MatriserBuffer);

    gDeviceContext->PSSetShaderResources(0, 1, &gFirstPassSRV[0]);  //texturer från light shading pass
    gDeviceContext->PSSetShaderResources(1, 1, &gFirstPassSRV[1]);
    gDeviceContext->PSSetShaderResources(2, 1, &gFirstPassSRV[2]);
    gDeviceContext->PSSetShaderResources(3, 1, &gFirstPassSRV[3]);
    gDeviceContext->PSSetShaderResources(4, 1, &gShadowView);       //shadow mapping

    //--------------------

    gDeviceContext->Draw(3, 0); //DRAW

    //--------------------  cleanup -   trying to clear SRVs
    ID3D11ShaderResourceView* srvs[D3D11_COMMONSHADER_INPUT_RESOURCE_SLOT_COUNT] = { 0 };
    gDeviceContext->PSSetShaderResources(0, D3D11_COMMONSHADER_INPUT_RESOURCE_SLOT_COUNT, srvs);
}

void ComputeBloom() {   //Render pass 4
    //----- cleanup from RenderLightShadingPass     -   might not be necessary
    gDeviceContext->OMSetRenderTargets(0, nullptr, nullptr);
    //-----

    gDeviceContext->VSSetShader(nullptr, nullptr, 0);
    gDeviceContext->HSSetShader(nullptr, nullptr, 0);
    gDeviceContext->DSSetShader(nullptr, nullptr, 0);
    gDeviceContext->GSSetShader(nullptr, nullptr, 0);
    gDeviceContext->PSSetShader(nullptr, nullptr, 0);
    gDeviceContext->CSSetShader(gComputeShaderBloom, nullptr, 0);

    //--------------------

    gDeviceContext->CSSetShaderResources(0, 1, &gLightShadingPassSRV);
    gDeviceContext->CSSetUnorderedAccessViews(0, 1, &computeTextureUAV, NULL);

    gDeviceContext->Dispatch(32, 18, 1);    //DISPATCH  -   works with res 1280x720 (generates 40x40 blocks)
}