Change Details

**System Information** Operating system: Windows-10-10.0.19043-SP0 64 Bits Graphics card: Quadro RTX 3000 with Max-Q Design/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 512.15 **Blender Version** Broken: version: 3.1.0, branch: master, commit date: 2022-03-08 18:16, hash: `rBc77597cd0e15` Worked: (newest version of Blender that worked as expected) **Short description of error** {F13003692} The slow initialization in the rendered viewport occurs after the default normal map node was added in the Skin shader. (The Skin shader is very simple - it contains just a Principled BSDF and Material Output.) I have tried both CUDA and Optix, and the slow initialization exists in both cases after the default normal map node added. **Exact steps for others to reproduce the error** However, this problem can not be reproduced in other scenes. So far, it only happens in this particular character, which is a large file more than 300 MB. It is also hard to make a sample file to upload here. But I made the video to report here, even if this bug is not going to be solved.

**System Information** Operating system: Windows-10-10.0.19043-SP0 64 Bits Graphics card: Quadro RTX 3000 with Max-Q Design/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 512.15 **Blender Version** Broken: version: 3.1.0, branch: master, commit date: 2022-03-08 18:16, hash: `rBc77597cd0e15` Worked: (newest version of Blender that worked as expected) **Short description of error** {F13003692} The slow initialization in the rendered viewport occurs after the default normal map node was added in the Skin shader. (The Skin shader is very simple - it contains just a Principled BSDF and Material Output.) I have tried both CUDA and Optix, and the slow initialization exists in both cases after the default normal map node added. **Exact steps for others to reproduce the error** {F13004836} Steps to reproduce the bug: 1, Download the sample file and open Blender; 2, Select the mesh, and go to the Sculpting mode, and then under the "Remesh" tab change the Voxel Size from 0.4 m to 0.004 m, or even smaller value if your computer can handle. Click "Remesh". 3, Then click the rendered preview. You will find that the higher the poly-count, the slower initialization speed. 4, Go to the Shading mode, and remove the Normal Map, and click the rendered preview. Your initialization speed returns to normal, even if the poly-count is high.

**System Information** Operating system: Windows-10-10.0.19043-SP0 64 Bits Graphics card: Quadro RTX 3000 with Max-Q Design/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 512.15 **Blender Version** Broken: version: 3.1.0, branch: master, commit date: 2022-03-08 18:16, hash: `rBc77597cd0e15` Worked: (newest version of Blender that worked as expected) **Short description of error** {F13003692} The slow initialization in the rendered viewport occurs after the default normal map node was added in the Skin shader. (The Skin shader is very simple - it contains just a Principled BSDF and Material Output.) I have tried both CUDA and Optix, and the slow initialization exists in both cases after the default normal map node added. **Exact steps for others to reproduce the error** However, this problem can not be reproduced in other scenes. So far, it only happens in this particular character, which is a large file more than 300 MB. It is also hard to make a sample file to upload here.{F13004836} Steps to reproduce the bug: 1, Download the sample file and open Blender; 2, Select the mesh, and go to the Sculpting mode, and then under the "Remesh" tab change the Voxel Size from 0.4 m to 0.004 m, But I made the video to report here,or even smaller value if your computer can handle. even if this bug is not going to be solvedClick "Remesh". 3, Then click the rendered preview. You will find that the higher the poly-count, the slower initialization speed. 4, Go to the Shading mode, and remove the Normal Map, and click the rendered preview. Your initialization speed returns to normal, even if the poly-count is high.