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* PerformanceOverlay3D - Development-only performance stats overlay for Three.js
*
* Displays real-time FPS, memory, and draw call statistics
* Only visible in development mode
*/
import { Html } from "@react-three/drei";
import React from "react";
import { usePerformanceMonitor } from "./usePerformanceMonitor";
export interface PerformanceOverlay3DProps {
/** @deprecated Position prop is no longer used - overlay now uses screen-space positioning */
readonly position?: [number, number, number];
readonly visible?: boolean;
}
/**
* 3D Performance overlay component for development
* Shows FPS, memory, draw calls, and warnings
* Uses screen-space positioning (bottom-left corner)
*/
export const PerformanceOverlay3D: React.FC<PerformanceOverlay3DProps> = ({
// eslint-disable-next-line @typescript-eslint/no-unused-vars
position: _position = [0, 0, 0],
visible = import.meta.env.DEV,
}) => {
const { metrics, isGood, warnings } = usePerformanceMonitor({
enabled: visible,
updateInterval: 500, // Update UI every 500ms
});
Iif (!visible) {
return null;
}
const fpsColor = isGood
? "#00ff88"
: metrics.avgFps < 30
? "#ff4444"
: "#ffaa00";
return (
<Html fullscreen style={{ pointerEvents: "none" }}>
<div
style={{
position: "absolute",
bottom: "20px",
left: "20px",
backgroundColor: "rgba(0, 0, 0, 0.85)",
border: "2px solid #00ffff",
borderRadius: "8px",
padding: "12px 16px",
fontFamily: "monospace",
fontSize: "12px",
color: "#00ffff",
minWidth: "220px",
maxWidth: "280px",
userSelect: "none",
pointerEvents: "none",
zIndex: 200,
}}
data-testid="performance-overlay"
>
{/* Title */}
<div
style={{
fontSize: "14px",
fontWeight: "bold",
marginBottom: "8px",
borderBottom: "1px solid #00ffff",
paddingBottom: "4px",
}}
>
⚡ Performance Monitor
</div>
{/* FPS Stats */}
<div style={{ marginBottom: "8px" }}>
<div
style={{
display: "flex",
justifyContent: "space-between",
marginBottom: "2px",
}}
>
<span>FPS:</span>
<span style={{ color: fpsColor, fontWeight: "bold" }}>
{metrics.fps.toFixed(1)}
</span>
</div>
<div
style={{
display: "flex",
justifyContent: "space-between",
marginBottom: "2px",
}}
>
<span>Avg FPS:</span>
<span style={{ color: fpsColor }}>{metrics.avgFps.toFixed(1)}</span>
</div>
<div
style={{
display: "flex",
justifyContent: "space-between",
marginBottom: "2px",
}}
>
<span>Min/Max:</span>
<span>
{metrics.minFps.toFixed(1)} / {metrics.maxFps.toFixed(1)}
</span>
</div>
<div style={{ display: "flex", justifyContent: "space-between" }}>
<span>Frame Time:</span>
<span>{metrics.frameTime.toFixed(2)}ms</span>
</div>
</div>
{/* System Stats */}
<div
style={{
marginBottom: "8px",
borderTop: "1px solid #444",
paddingTop: "8px",
}}
>
<div
style={{
display: "flex",
justifyContent: "space-between",
marginBottom: "2px",
}}
>
<span>Memory:</span>
<span
style={{
color:
metrics.memoryMB > 300
? "#ff4444"
: metrics.memoryMB > 250
? "#ffaa00"
: "#00ffff",
}}
>
{metrics.memoryMB > 0
? `${metrics.memoryMB.toFixed(1)}MB`
: "N/A"}
</span>
</div>
<div
style={{
display: "flex",
justifyContent: "space-between",
marginBottom: "2px",
}}
>
<span>Draw Calls:</span>
<span
style={{
color:
metrics.drawCalls > 150
? "#ff4444"
: metrics.drawCalls > 100
? "#ffaa00"
: "#00ffff",
}}
>
{metrics.drawCalls}
</span>
</div>
<div style={{ display: "flex", justifyContent: "space-between" }}>
<span>Triangles:</span>
<span>{(metrics.triangles / 1000).toFixed(1)}k</span>
</div>
</div>
{/* Performance Status */}
<div style={{ borderTop: "1px solid #444", paddingTop: "8px" }}>
<div
style={{
display: "flex",
alignItems: "center",
gap: "8px",
}}
>
<span
style={{
width: "12px",
height: "12px",
borderRadius: "50%",
backgroundColor: isGood ? "#00ff88" : "#ff4444",
display: "inline-block",
}}
/>
<span style={{ fontWeight: "bold" }}>
{isGood ? "Performance Good" : "Performance Degraded"}
</span>
</div>
</div>
{/* Warnings */}
{warnings.length > 0 && (
<div
style={{
marginTop: "8px",
borderTop: "1px solid #ff4444",
paddingTop: "8px",
}}
>
<div
style={{
color: "#ff4444",
fontWeight: "bold",
marginBottom: "4px",
}}
>
⚠️ Warnings:
</div>
{warnings.map((warning, index) => (
<div
key={index}
style={{
fontSize: "11px",
color: "#ffaa00",
marginBottom: "2px",
}}
>
{warning}
</div>
))}
</div>
)}
</div>
</Html>
);
};
export default PerformanceOverlay3D;
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