| Radiance | Irradiance | Irradiance Error (sMAPE) | Mode |
|---|---|---|---|
| ![Radiance] Pisa-radianceMCIS.png | ![Irradiance] Pisa-irradianceMCIS.png | N/A | Monte Carlo [Importance Sampling] Reference |
| ![Radiance] Pisa-radianceAC.png | ![Irradiance] Pisa-irradianceAC.png | ![IrradianceError] Pisa-irradianceErrorAC.png | Ambient Cube |
| ![Radiance] Pisa-radianceSHL1G.png | ![Irradiance] Pisa-irradianceSHL1G.png | ![IrradianceError] Pisa-irradianceErrorSHL1G.png | Spherical Harmonics L1 [Geomerics] |
| ![Radiance] Pisa-radianceSHL1.png | ![Irradiance] Pisa-irradianceSHL1.png | ![IrradianceError] Pisa-irradianceErrorSHL1.png | Spherical Harmonics L1 |
| ![Radiance] Pisa-radianceSHL2.png | ![Irradiance] Pisa-irradianceSHL2.png | ![IrradianceError] Pisa-irradianceErrorSHL2.png | Spherical Harmonics L2 |
| ![Radiance] Pisa-radianceSHL3.png | ![Irradiance] Pisa-irradianceSHL3.png | ![IrradianceError] Pisa-irradianceErrorSHL3.png | Spherical Harmonics L3 |
| ![Radiance] Pisa-radianceSHL4.png | ![Irradiance] Pisa-irradianceSHL4.png | ![IrradianceError] Pisa-irradianceErrorSHL4.png | Spherical Harmonics L4 |
| ![Radiance] Pisa-radianceSHL2W.png | ![Irradiance] Pisa-irradianceSHL2W.png | ![IrradianceError] Pisa-irradianceErrorSHL2W.png | Spherical Harmonics L2 [Windowed] |
| ![Radiance] Pisa-radianceSG.png | ![Irradiance] Pisa-irradianceSG.png | ![IrradianceError] Pisa-irradianceErrorSG.png | Spherical Gaussians [Naive] |
| ![Radiance] Pisa-radianceSGLS.png | ![Irradiance] Pisa-irradianceSGLS.png | ![IrradianceError] Pisa-irradianceErrorSGLS.png | Spherical Gaussians [Least Squares] |
| ![Radiance] Pisa-radianceSGLSA.png | ![Irradiance] Pisa-irradianceSGLSA.png | ![IrradianceError] Pisa-irradianceErrorSGLSA.png | Spherical Gaussians [Least Squares + Ambient] |
| ![Radiance] Pisa-radianceSGNNLS.png | ![Irradiance] Pisa-irradianceSGNNLS.png | ![IrradianceError] Pisa-irradianceErrorSGNNLS.png | Spherical Gaussians [Non-Negative Least Squares] |
