--- a/Rendering/CellGrid/vtkDGOpenGLRenderer.cxx_orig 2023-12-28 06:22:40.696501865 +0100 +++ b/Rendering/CellGrid/vtkDGOpenGLRenderer.cxx 2023-12-28 06:23:24.633470522 +0100 @@ -1046,11 +1046,13 @@ } // III. Render draw +#ifndef GL_ES_VERSION_3_0 if (renderer->GetUseImageBasedLighting() && renderer->GetEnvironmentTexture()) { vtkOpenGLState* ostate = oglRenWin->GetState(); ostate->vtkglEnable(GL_TEXTURE_CUBE_MAP_SEAMLESS); } +#endif // a. Update shaders state->CellBO.VAO->Bind(); // state->LastBoundBO = &state->CellBO; // We only bind the one...