# OpenGL Test Agent Instructions

## Quick Start

```bash
# Build
cmake --build build --config Debug --target XCRender

# Run test
./build/tests/OpenGL/Debug/run.bat

# Or manually:
cd build/tests/OpenGL/Debug
XCRender.exe
python compare_ppm.py screenshot.ppm GT.ppm 5
```

## Test Details

- **Resolution**: 1280x720
- **Screenshot Frame**: 30
- **Reference Image**: GT.ppm
- **Comparison Threshold**: 5 pixels

## Build Target

- Target name: `XCRender`
- Output: `build/tests/OpenGL/Debug/XCRender.exe`

## Test Output

- Log file: `OpenGL_engine_log.txt`
- Screenshot: `screenshot.ppm`

## Dependencies

- GLFW 3.3
- GLAD
- Assimp
- GLM
- stb_image

## Resources

- Model: `res/models/backpack/backpack.obj`
- Shaders: `Shaders/vertexshader.glsl`, `Shaders/fragmentshader.glsl`

## Troubleshooting

| Issue | Solution |
|-------|----------|
| Black screen | Check shader compilation errors in log |
| No textures | Verify res/models/ directory exists |
| Model not loading | Check model file path |