Method RenderGBuffer

BindlessDeferred/MeshRenderer.cpp:564–615

Renders all meshes to the G-Buffer

// Renders all meshes to the G-Buffer
void MeshRenderer::RenderGBuffer(ID3D12GraphicsCommandList* cmdList, const Camera& camera)
{
    PIXMarker marker(cmdList, L"Render G-Buffer");
    CPUProfileBlock cpuProfileBlock("Render G-Buffer");

    uint64 numVisible = 0;
    if(AppSettings::SortByDepth)
        numVisible = CullMeshesAndSort(camera, meshBoundingBoxes, meshZDepths, meshDrawIndices);
    else
        numVisible = CullMeshes(camera, meshBoundingBoxes, meshDrawIndices);

    cmdList->SetGraphicsRootSignature(gBufferRootSignature);
    cmdList->SetPipelineState(gBufferPSO);
    cmdList->IASetPrimitiveTopology(D3D_PRIMITIVE_TOPOLOGY_TRIANGLELIST);

    Float4x4 world;

    // Set constant buffers
    meshVSConstants.Data.World = world;
    meshVSConstants.Data.View = camera.ViewMatrix();
    meshVSConstants.Data.WorldViewProjection = world * camera.ViewProjectionMatrix();
    meshVSConstants.Data.NearClip = camera.NearClip();
    meshVSConstants.Data.FarClip = camera.FarClip();
    meshVSConstants.Upload();
    meshVSConstants.SetAsGfxRootParameter(cmdList, 0);

    // Bind vertices and indices
    D3D12_VERTEX_BUFFER_VIEW vbView = model->VertexBuffer().VBView();
    D3D12_INDEX_BUFFER_VIEW ibView = model->IndexBuffer().IBView();
    cmdList->IASetVertexBuffers(0, 1, &vbView);
    cmdList->IASetIndexBuffer(&ibView);

    // Draw all visible meshes
    uint32 currMaterial = uint32(-1);
    for(uint64 i = 0; i < numVisible; ++i)
    {
        uint64 meshIdx = meshDrawIndices[i];
        const Mesh& mesh = model->Meshes()[meshIdx];

        // Draw all parts
        for(uint64 partIdx = 0; partIdx < mesh.NumMeshParts(); ++partIdx)
        {
            const MeshPart& part = mesh.MeshParts()[partIdx];
            if(part.MaterialIdx != currMaterial)
            {
                cmdList->SetGraphicsRoot32BitConstant(1, part.MaterialIdx, 0);
                currMaterial = part.MaterialIdx;
            }
            cmdList->DrawIndexedInstanced(part.IndexCount, 1, mesh.IndexOffset() + part.IndexStart, mesh.VertexOffset(), 0);
        }
    }
}

// Renders all meshes using depth-only rendering
void MeshRenderer::RenderDepth(ID3D12GraphicsCommandList* cmdList, const Camera& camera, ID3D12PipelineState* pso, uint64 numVisible)