graph.gv

digraph {
    node [shape=rect]; "Light Clustering"; "Geometry Culling *"; deferred_tex; "Depth of Field *"; "Bloom"; "Display Transform"; "AA Resolve"; forwards_ao; forwards_rt
    node[shape=oval]

	frame_start[label = "Start"]

    "Start" -> "Texture Loading" -> "Mipmap Generation *" -> frame_start
    "Texture Loading" -> frame_start

    "Start" -> "Model Loading" -> "Meshlet Generation *" -> frame_start
    "Model Loading" -> frame_start
    "Model Loading" -> "Texture Loading"

subgraph cluster_render_loop {
	label = "Frame"
	frame_start -> "Geometry Culling *" -> "Pipeline Barrier"
	frame_start -> "Light Clustering" -> "Pipeline Barrier"

	subgraph cluster_compute_shader_dispatches {
		"Geometry Culling *"
		"Light Clustering"
		label = "Compute Shader Dispatches"
	}
	"Pipeline Barrier" -> depth_o
	"Pipeline Barrier" -> vis_o
	"Pipeline Barrier" -> forwards_shadows

	subgraph cluster_deferred_texturing {
		label =  "One Option: Deferred Texturing (simplified)"
		subgraph cluster_visbuffer {
			vis_o[label = "Opaque Objects"]
			vis_ac[label = "Alpha-Clipped Objects"]
			vis_o -> vis_ac
			label = "Visibility Buffer Pass"
		}

		deferred_tex[label = "Deferred Texturing and Lighting"]
		deferred_alpha[label = "Alpha-Blended/Transmissive Objects *"]

		vis_ac -> deferred_tex -> deferred_alpha
	}

	subgraph cluster_forwards_with_depth_pre_pass {
		label = "One Option: Forwards Rendering with a depth pre-pass"

	subgraph cluster_depth_pre {
		depth_ac[label = "Alpha-Clipped Objects"]
		depth_o[label = "Opaque Objects"]
		depth_o -> depth_ac
		label = "Depth Pre-Pass"
	}

	forwards_shadows[label = "Shadowmap rendering *"]

	forwards_shadows -> forwards_main

	subgraph cluster_depth_only {
			label = "Passes with depth as a pre-req"
		forwards_ao[label = "Ambient Occlusion *"]
		forwards_rt[label = "Ray-Traced Shadows *"]
	}

	depth_ac -> forwards_main

	depth_ac -> forwards_ao -> forwards_main
	depth_ac -> forwards_rt -> forwards_main

	subgraph cluster_rendering {
		forwards_main[label="Opaque & Alpha-Clipped Objects"]
		forwards_alpha[label="Alpha-Blended/Transmissive Objects *"]
		forwards_main -> forwards_alpha
		label = "Main Pass"
	}
}

deferred_tex -> post_start
deferred_alpha -> post_start
forwards_main -> post_start
forwards_alpha -> post_start

subgraph cluster_post {
	post_start[label = "Start"]
	post_start -> "Depth of Field *" -> "Bloom" -> "Display Transform" -> "AA Resolve"
	post_start -> "Bloom"
	label = "Post Processing"
}

"AA Resolve" -> "UI Rendering *" -> "Submit"
"AA Resolve" -> "Submit" -> "Present"
}
}