Change Details

**System Information** Operating system: Windows-10-10.0.19043-SP0 64 Bits Graphics card: GeForce GTX 1080/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 431.07 **Blender Version** Broken: version: 3.0.0, branch: master, commit date: 2021-12-02 18:35, hash: `rBf1cca3055776` Worked: (newest version of Blender that worked as expected) **Short description of error** When using the Principled BSDF or the Glass BSDF with Multiscatter GGX artifacts that look like seams are visible. These are definitely not refractive phenomena, as it does not occur with other microfacet distribution models. **Exact steps for others to reproduce the error** {F12933497} As can be seen in the test file, seamlike artifacts appear when roughness!=0. When changing the microfacet distribution model to a different one the artifacts are not visible. Thank you and have a great day!

**System Information** Operating system: Windows-10-10.0.19043-SP0 64 Bits Graphics card: GeForce GTX 1080/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 431.07 **Blender Version** Broken: version: 3.0.0, branch: master, commit date: 2021-12-02 18:35, hash: `rBf1cca3055776` Worked: (newest version of Blender that worked as expected) **Short description of error** When using the Principled BSDF or the Glass BSDF with Multiscatter GGX artifacts that look like seams are visible. These are definitely not refractive phenomena, as it does not occur with other microfacet distribution models. Below is a comparison of a cylinder with a glass shader in front of a checker pattern. As you can see, Multiscatter GGX has a "seam" in it that doesn't make sense and isn't present with GGX. |{F12939302}|{F12939308}| |Multiscatter GGX|GGX| **Exact steps for others to reproduce the error** {F12933497} As can be seen in the test file, seamlike artifacts appear when roughness!=0. When changing the microfacet distribution model to a different one the artifacts are not visible. Thank you and have a great day!

**System Information** Operating system: Windows-10-10.0.19043-SP0 64 Bits Graphics card: GeForce GTX 1080/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 431.07 **Blender Version** Broken: version: 3.0.0, branch: master, commit date: 2021-12-02 18:35, hash: `rBf1cca3055776` Worked: (newest version of Blender that worked as expected) **Short description of error** When using the Principled BSDF or the Glass BSDF with Multiscatter GGX artifacts that look like seams are visible. These are definitely not refractive phenomena, as it does not occur with other microfacet distribution models. Below is a comparison of a cylinder with a glass shader in front of a checker pattern. As you can see, Multiscatter GGX has a "seam" in it that doesn't make sense and isn't present with GGX. |{F12939302}|{F12939308}| |Multiscatter GGX|GGX| **Exact steps for others to reproduce the error** {F12933497} As can be seen in the test file, seamlike artifacts appear when roughness!=0. When changing the microfacet distribution model to a different one the artifacts are not visible. Thank you and have a great day!