Method RenderSunShadowMap

BindlessDeferred/MeshRenderer.cpp:680–709

Renders meshes using cascaded shadow mapping

// Renders meshes using cascaded shadow mapping
void MeshRenderer::RenderSunShadowMap(ID3D12GraphicsCommandList* cmdList, const Camera& camera)
{
    PIXMarker marker(cmdList, L"Sun Shadow Map Rendering");
    CPUProfileBlock cpuProfileBlock("Sun Shadow Map Rendering");
    ProfileBlock profileBlock(cmdList, "Sun Shadow Map Rendering");

    OrthographicCamera cascadeCameras[NumCascades];
    PrepareShadowCascades(AppSettings::SunDirection, SunShadowMapSize, true, camera, sunShadowConstants.Data, cascadeCameras);

    sunShadowMap.MakeWritable(cmdList);

    // Render the meshes to each cascade
    for(uint64 cascadeIdx = 0; cascadeIdx < NumCascades; ++cascadeIdx)
    {
        PIXMarker cascadeMarker(cmdList, MakeString(L"Rendering Shadow Map Cascade %u", cascadeIdx).c_str());

        // Set the viewport
        DX12::SetViewport(cmdList, SunShadowMapSize, SunShadowMapSize);

        // Set the shadow map as the depth target
        D3D12_CPU_DESCRIPTOR_HANDLE dsv = sunShadowMap.ArrayDSVs[cascadeIdx].CPUHandle;
        cmdList->OMSetRenderTargets(0, nullptr, false, &dsv);
        cmdList->ClearDepthStencilView(dsv, D3D12_CLEAR_FLAG_DEPTH | D3D12_CLEAR_FLAG_STENCIL, 1.0f, 0, 0, nullptr);

        // Draw the mesh with depth only, using the new shadow camera
        RenderSunShadowDepth(cmdList, cascadeCameras[cascadeIdx]);
    }

    sunShadowMap.MakeReadable(cmdList);
}

// Render shadows for all spot lights
void MeshRenderer::RenderSpotLightShadowMap(ID3D12GraphicsCommandList* cmdList, const Camera& camera)