How to calculate absolute fps :>

Silver · November 26, 2024, 5:28pm

The Performance tool found in https://playground.babylonjs.com/#938RNX#29 is nice but it lacks absolute fps calculation, which i need the most. Can anyone help me calulate the absolute fps

Deltakosh · November 26, 2024, 6:41pm

You can get it with:

1000.0 / sceneInstrumentation.frameTimeCounter.lastSecAverage

Silver · November 26, 2024, 6:56pm

but it’s an average i want match it with the performance viewer numbers

Silver · November 26, 2024, 7:08pm

wait i think there is a delay when updating the values under “frame steps duration” tab. i think it updates once per second, i should add a delay in the registerafterrender function to make the numbers readable. also i will use
1000.0 / sceneInstrumentation.frameTimeCounter.current.toFixed(0);
to get the real number but not sure if i’m right

labris · November 26, 2024, 7:29pm

Here is how it is done in the Inspector

github.com

BabylonJS/Babylon.js/blob/3725abaed67d26b5a8de053f3aa336deae4373b1/packages/dev/inspector/src/components/actionTabs/tabs/statisticsTabComponent.tsx#L91


      
              <TextLineComponent label="Active faces" value={(scene.getActiveIndices() / 3).toString()} />

              <TextLineComponent label="Active bones" value={scene.getActiveBones().toString()} />

              <TextLineComponent label="Active particles" value={scene.getActiveParticles().toString()} />

              <TextLineComponent label="Draw calls" value={sceneInstrumentation.drawCallsCounter.current.toString()} />

              <TextLineComponent label="Total lights" value={scene.lights.length.toString()} />

              <TextLineComponent label="Total vertices" value={scene.getTotalVertices().toString()} />

              <TextLineComponent label="Total materials" value={scene.materials.length.toString()} />

              <TextLineComponent label="Total textures" value={scene.textures.length.toString()} />

          </LineContainerComponent>

          <LineContainerComponent title="FRAME STEPS DURATION">

              <ValueLineComponent label="Absolute FPS" value={1000.0 / this._sceneInstrumentation!.frameTimeCounter.lastSecAverage} fractionDigits={0} />

              <ValueLineComponent label="Meshes selection" value={sceneInstrumentation.activeMeshesEvaluationTimeCounter.lastSecAverage} units="ms" />

              <ValueLineComponent label="Render targets" value={sceneInstrumentation.renderTargetsRenderTimeCounter.lastSecAverage} units="ms" />

              <ValueLineComponent label="Particles" value={sceneInstrumentation.particlesRenderTimeCounter.lastSecAverage} units="ms" />

              <ValueLineComponent label="Sprites" value={sceneInstrumentation.spritesRenderTimeCounter.lastSecAverage} units="ms" />

              <ValueLineComponent label="Animations" value={sceneInstrumentation.animationsTimeCounter.lastSecAverage} units="ms" />

              <ValueLineComponent label="Physics" value={sceneInstrumentation.physicsTimeCounter.lastSecAverage} units="ms" />

              <ValueLineComponent label="Render" value={sceneInstrumentation.renderTimeCounter.lastSecAverage} units="ms" />

              <ValueLineComponent label="Frame total" value={sceneInstrumentation.frameTimeCounter.lastSecAverage} units="ms" />

              <ValueLineComponent label="Inter-frame" value={sceneInstrumentation.interFrameTimeCounter.lastSecAverage} units="ms" />

              <ValueLineComponent label="GPU Frame time" value={engineInstrumentation.gpuFrameTimeCounter!.lastSecAverage * 0.000001} units="ms" />

Silver · November 26, 2024, 7:51pm

thank you for this i will look into it

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How to calculate absolute fps :>

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