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forge-debug-lines

Add immediate-mode debug line rendering to SDL GPU projects.

36|6|Updated Mar 25, 2026
Search Tags:#debugging#graphics#visualization#diagnostics#wireframe#immediate-mode#sdl-gpu
One-click install
npx skills add https://github.com/Nebulavenus/forge-gpu --skill forge-debug-lines-nebulavenus
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: forge-debug-lines
Source: https://github.com/Nebulavenus/forge-gpu/tree/main/.claude/skills/forge-debug-lines
Command: npx skills add https://github.com/Nebulavenus/forge-gpu --skill forge-debug-lines-nebulavenus

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Provides an immediate-mode debug drawing system for SDL GPU projects to visualize spatial data and diagnostic cues with world-space lines and an always-on overlay.

Core Features & Use Cases

  • Immediate-mode line rendering in world-space and overlay, supporting axes, grids, circles, and wireframe boxes.
  • Per-frame updates via a lightweight pipeline: reset, accumulate, upload, and draw.
  • Diagnostic visualization for development workflows, physics debugging, and rendering verification.

Quick Start

Initialize the debug line system, then push world and overlay debug lines every frame.

Frequently Asked Questions about forge-debug-lines

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I draw debug lines and wireframe boxes in an SDL GPU application?▼

An immediate-mode debug drawing system renders per-frame spatial data and diagnostic cues like wireframe boxes, grids, circles, and axes directly in SDL GPU applications via lightweight world-space and overlay pipelines.

What is immediate-mode debug visualization for SDL GPU rendering?▼

Immediate-mode debug visualization provides per-frame diagnostic overlays for SDL GPU projects, allowing developers to render spatial data like grids, axes, and wireframe boxes without retaining persistent graphics buffers.

How do I set up pipelines for world-space and overlay debug rendering?▼

Setup requires configuring two pipelines: a world-space pipeline with depth testing enabled and an overlay pipeline without depth testing, plus a small vertex format to upload accumulated line data every frame.

Can I render physics diagnostics and spatial data overlays per frame in SDL GPU?▼

Yes, you can render physics diagnostics and spatial data overlays per frame using a lightweight pipeline that resets, accumulates, uploads, and draws line data during the development workflow.

Does this immediate-mode debug drawing system require external graphics dependencies?▼

No external graphics dependencies are required beyond the SDL GPU framework itself, as the system operates using a basic vertex format and two internal rendering pipelines for world and overlay modes.

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