Renderer issues in desktop programs

[sans-2233]

When I use the Pen+ extension, the shader I wrote doesn't work in the desktop program, but it does work on the web, and the problem is that when I use the "Draw triangle using ... between ..." block, it runs endlessly, just like this picture

[sans-2233]

HillV2 is a prime example of this problem in the Pen+ extension example project, which is compatible with websites but not desktops