Shadertoy: Can not render, OpenGL 2.0 is required.

devernay · May 10, 2018, 4:20pm

Anyone getting that error message, please report the problem and follow the instructions in that github issue:

Shadertoy: Can not render: OpenGL 2.0 or GL_ARB_texture_non_power_of_two is required.

opened 04:15PM - 10 May 18 UTC

func:plugins prio:low type:bug

### Problem from that FB message: https://www.facebook.com/groups/NatronNatio…n/permalink/983476598486575/ ![32226772_10155916181989902_8077641591696654336_n](https://user-images.githubusercontent.com/3778071/39879955-8fd89984-547c-11e8-8d9c-d68f5da17ae3.jpg) ### Steps to Reproduce 1. Create a ShaderToy node (or any PyPlug that uses a Shadertoy) 2. Connect it to a viewer ### Troubleshooting Here's what you should do, and the information you should report: 1. Is the error message you got the same as in the image above? If not, please give the full message. 2. in the Shadertoy node, click "Renderer Info..." and post the OpenGL version (which should be greater than 2.0) and the renderer name. Are the required extensions are in the list? 3. in Natron Preferences / GPU Rendering, is the displayed info consistent with what "Renderer Info..." above gave? 4. now uncheck "Enable GPU Render" in the Shadertoy node and click the refresh/recycle button on the top of the viewer. Click again "Renderer Info..." and it should say it now uses Mesa. Does it? 5. to temporarily fix this issue, in Natron Preferences / GPU Rendering, set "OpenGL Rendering" to "Disabled", **apply** changes, and **relaunch** Natron. Does that fix the issue? 6. Does the "Renderer Info..." in step 1. say it is using your graphics card? If not, you may have the wrong GPU drivers installed, please check if there are OpenGL dirivers available from your GPU manufacturer. <bountysource-plugin> --- Want to back this issue? **[Post a bounty on it!](https://www.bountysource.com/issues/58205934-shadertoy-can-not-render-opengl-2-0-or-gl_arb_texture_non_power_of_two-is-required?utm_campaign=plugin&utm_content=tracker%2F83915136&utm_medium=issues&utm_source=github)** We accept bounties via [Bountysource](https://www.bountysource.com/?utm_campaign=plugin&utm_content=tracker%2F83915136&utm_medium=issues&utm_source=github). </bountysource-plugin>