https://github.com/copperfr/blendervxkex
Windows 7 CUDA & OptiX support for Blender 4.x
https://github.com/copperfr/blendervxkex
blender cuda cycles-renderer optix vxkex windows-7
Last synced: 5 months ago
JSON representation
Windows 7 CUDA & OptiX support for Blender 4.x
- Host: GitHub
- URL: https://github.com/copperfr/blendervxkex
- Owner: CopperFr
- Created: 2025-04-22T18:38:27.000Z (about 1 year ago)
- Default Branch: main
- Last Pushed: 2025-08-21T21:09:25.000Z (10 months ago)
- Last Synced: 2025-08-21T23:40:42.247Z (10 months ago)
- Topics: blender, cuda, cycles-renderer, optix, vxkex, windows-7
- Homepage:
- Size: 1.95 KB
- Stars: 2
- Watchers: 3
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
# BlenderVxKex
Windows 7 CUDA & OptiX support for Blender 4.4.x / 4.5.x / 5.x.x with [VxKex](https://github.com/CopperFr/VxKex).
## Description
This repository contains releases of files to replace in the official portable install
of Blender to have CUDA and/or OptiX cycles working when [VxKex](https://github.com/CopperFr/VxKex) is used.
Build environment:
```
Visual Studio 2019, version 16.11.53
Windows SDK 10.0.22621.0
NVIDIA CUDA 10.2 / 11.8
NVIDIA OptiX 7.3
```
When you use [VxKex](https://github.com/CopperFr/VxKex) on the official portable install of Blender it will work but cycles
CUDA or OptiX will not. For CUDA you'll have an error:
**Failed to load CUDA kernel from '...\kernel_sm_XX.cubin.zst' (Invalid kernel image)**
It will work if you replace files from **blender-CUDA-OptiX-patch_x_x_x.zip** but you will still
need to use [VxKex](https://github.com/CopperFr/VxKex).
For CUDA you can only replace the file indicated in the error message.
For OptiX you need to replace other files and blender.exe because official one is checking for r535+ drivers to enable OptiX.
(OptiX 8.0 requires that you install a r535+ driver not available in Windows 7)
**4.4.x / 4.5.x support is only available for compute capability between 3.0 and 8.9.**
**5.x.x support is only available for compute capability between 5.0 and 8.9.**
more about CUDA: https://en.wikipedia.org/wiki/CUDA
OptiX cycles is not working correctly when Open Shading Language is checked.