render_script.sh

#!/bin/bash

# Define arrays for renderers and their corresponding packages
declare -A renderers
renderers=(
    ["GL"]="usd"                                # 4.6.0 (24.08)
    ["Karma CPU"]="houdini"                     # 20.0.751 (23.08)
    ["Karma XPU"]="houdini"
    ["Prman"]="usd"                             # 26.1 (24.08)
    ["RenderMan RIS"]="rfh"                     # 26.1 (23.08)
    ["RenderMan XPU - CPU"]="rfh"
    ["RenderMan XPU - GPU"]="rfh"
    ["RenderMan XPU"]="rfh"
    ["Arnold"]="htoa"                           # 7.3.3.0 (23.08)
    ["Moonray"]="moonray"                       # 1.5 (22.05)
    ["Cycles"]="cycles"                         # 3.6.0 (23.08)
    ["Embree"]="usd"                            # 3.2.2 (24.08)
)

# Define arrays for scenes, cameras and optional frame specifications
scenes_and_cameras=(
    "assets/full_assets/McUsd/McUsd.usda /McUsd/Camera"
    "assets/full_assets/OpenChessSet/chess_set.usda main_cam"
    "scenes/MoanaIsland/usd/island.usda /island/cam/shotCam"
    "scenes/ALab/ALab/entry.usda /root/camera01/GEO/renderCam_hrc/renderCam_buffer/renderCam_srt/renderCam"
)

# Define problematic combinations of renderer and scene
declare -A problematic_combinations
problematic_combinations=(
    ["Arnold,scenes/MoanaIsland/usd/island.usda"]=1 # 00:13:16 65579MB WARNING |  signal caught: SIGSEGV -- Invalid memory reference
    ["Moonray,scenes/MoanaIsland/usd/island.usda"]=1 # Segmentation fault (core dumped)
    ["Cycles,scenes/ALab/ALab/entry.usda"]=1 # 49784 ThreadId=0x7f34597fe700: Fatal error: Segmentation fault
    ["Cycles,scenes/MoanaIsland/usd/island.usda"]=1 # 48444 ThreadId=0x7f78c4b52700: Fatal error: Segmentation fault
)

# Loop over each renderer
for renderer in "${!renderers[@]}"; do
    package=${renderers[$renderer]}
    
    # Loop over each scene, camera and frame specifications
    for scene_and_camera in "${scenes_and_cameras[@]}"; do
        scene=$(echo $scene_and_camera | awk '{print $1}')
        camera=$(echo $scene_and_camera | awk '{print $2}')
        frames=$(echo $scene_and_camera | awk '{print $3}')
        
        # Check if this combination is problematic
        combination="${renderer},${scene}"
        if [[ -n "${problematic_combinations[$combination]}" ]]; then
            echo "Skipping problematic combination: $combination"
            continue
        fi

        scene_name=$(basename "$scene" | sed 's/\.[^.]*$//')  # Get the scene name without extension
        
        # Determine frames option and modify output path if needed
        if [ -z "$frames" ]; then
            frames_option=""
            output_path="renderers/${renderer}/${scene_name}.jpg"
        else
            frames_option="--frames $frames"
            output_path="renderers/${renderer}/${scene_name}.#.jpg"
        fi

	# Ensure the output directory exists
	output_dir=$(dirname "$output_path")
	mkdir -p "$output_dir"

        # Create a log file for this run
        log_file="logs/${renderer}_${scene_name}.log"
	mkdir -p logs  # Ensure the logs directory exists
        
        # Run the command and log the output
        echo "Running: rez env $package -- usdrecord --camera $camera --renderer \"$renderer\" --purposes render  $frames_option $scene \"$output_path\"" | tee "$log_file"
        (/usr/bin/time -f "Time: %E\nMemory: %M KB" rez env $package -- usdrecord --camera $camera --renderer "$renderer" --purposes render $frames_option $scene "$output_path" || echo "ERROR: usdrecord returned non-zero exit status") |& tee -a "$log_file"
    done
done