help with showFPS

GLiFTeK wrote:

how do you update a text object updated with the fps?
i tried a js call, but don’t seem to be able to get the syntax correct.

Do you mean Blender’s Text objects? Because there’s no need to update the FPS counter itself, I was just saying about updating an application to the newer version of verge3d.

GLiFTeK wrote:

well i was trying to get the fps to link to an updated blender text object for a readout, how does one use the ” .showFPS () : null ” line? wrap in a function? assign it a true value?

You can put app.showFPS(); in runCode to enable it via js (and app.hideFPS() to disable). And there’s also a hotkey to switch it: just press F 3 times.

But this feature is just a small widget displaying FPS in the top left corner. It’s not well-suited for obtaining/utilizing the FPS value. If you need to calculate it I’d suggest to do that in a render callback:

function runCode(app) {
    // add your code here, e.g. console.log('Hello, World!');

    var avgFPS = 0;
    app.renderCallbacks.push(function(delta, elapsed) {
        var FPS_INERTIA = 1;
        if (delta > 0) {
            avgFPS = v3d.MathUtils.expAverage(avgFPS, 1 / delta, delta, FPS_INERTIA);

            var fps = Math.round(avgFPS);
            // update objects, display FPS here, etc...
        }
    });
}

– then you can use that fps variable for updating a text object, for example:

textObj.geometry = textObj.geometry.cloneWithText(String(fps) + ' FPS');

Hi,

renderCallbacks is a plain JS Array so you can use various methods to remove your callback from this array.

https://love2dev.com/blog/javascript-remove-from-array/