Execute Indirect

/// <summary>
/// Enqueue render pass for processing in graphics context
/// </summary>
/// <param name="heap">Memory heap</param>
/// <param name="context">Graphics context</param>
void RenderPassWireframe::Process(Engine::Entity* camera, Engine::DescriptorHeap* heap, Engine::GraphicsContext* context, Engine::RenderNodeList* renderNodes)
{
    if (camera->GameObject().Has<Engine::CameraComponent>() && renderNodes->GetIndirectDrawCount() > 0)
    {
        Engine::Camera* cam = camera->GameObject().Get<Engine::CameraComponent>()->Get();

        Engine::mat4 viewMatrix = cam->GetViewMatrix();
        Engine::mat4 projectionMatrix = cam->GetProjectionMatrix();

        memcpy(mCameraBufferPtr, &viewMatrix, sizeof(float) * 16);
        memcpy((float*)mCameraBufferPtr + 16, &projectionMatrix, sizeof(float) * 16);

        context->SetPipelineState(mPipelineState);
        context->SetRootSignature(mRootSignature);
        context->SetDescriptorHeap(Engine::DescriptorHeap::CBV_SRV_UAV, heap);
        context->SetViewport(0.0f, 0.0f, (float)mWidth, (float)mHeight);
        context->SetScissorRect(0.0f, 0.0f, (float)mWidth, (float)mHeight);
        context->TransitionResource(mColorBuffer, D3D12_RESOURCE_STATE_RENDER_TARGET, false);
        context->TransitionResource(mDepthBuffer, D3D12_RESOURCE_STATE_DEPTH_WRITE, true);
        context->SetRenderTargets(mColorBuffer, mDepthBuffer);
        context->ClearColor(mColorBuffer, 0.0f, 0.0f, 0.0f, 1.0f);
        context->ClearDepth(mDepthBuffer, 1.0f, 0);
        context->SetPrimitiveTopology(Engine::Graphics::TRIANGLELIST);

        context->SetConstantBuffer(2, mCameraBuffer->GetGpuVirtualAddress());
        context->GetCommandList()->Get()->SetGraphicsRootDescriptorTable(1, renderNodes->GetBuffer()->GetSRV().mGpuHandle);

        context->ExecuteIndirect(*(renderNodes->GetCommandSignature()), *(renderNodes->GetIndirectArgsBuffer()), 0, renderNodes->GetIndirectDrawCount());

        context->TransitionResource(mColorBuffer, D3D12_RESOURCE_STATE_PIXEL_SHADER_RESOURCE, false);
        context->TransitionResource(mDepthBuffer, D3D12_RESOURCE_STATE_PIXEL_SHADER_RESOURCE, true);
    }
}