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function getDeltaTime() { return scene.getLastFrameDuration() / 1000; } How can I get same function with EngineInstrumentation? I am playing around instrumentation. Can any body help me getDeltaTime? getLastFrameDuration is not working anymore. Which counter can get me solve getDeltaTime like code above? Any help hint? http://doc.babylonjs.com/how_to/optimizing_your_scene#instrumentation function instrumentFun() { //console.log(instrumentation.gpuFrameTimeCounter.current); //console.log(instrumentation.gpuFrameTimeCounter.average); //console.log(instrumentation.gpuFrameTimeCounter.average); console.log( "current frame time (GPU): " + (instrumentation.gpuFrameTimeCounter.current * 0.000001).toFixed(2) + "ms" ); console.log( "average frame time (GPU): " + (instrumentation.gpuFrameTimeCounter.average * 0.000001).toFixed(2) + "ms" ); console.log( "total shader compilation time: " + (instrumentation.shaderCompilationTimeCounter.total).toFixed(2) + "ms" ); console.log( "average shader compilation time: " + (instrumentation.shaderCompilationTimeCounter.average).toFixed(2) + "ms" ); console.log( "compiler shaders count: " + instrumentation.shaderCompilationTimeCounter.count ); } I am useing chrome (with debian) And I get "current frame time (GPU)" and "average frame time (GPU)" 0. I always get current frame time (GPU): 0.00ms average frame time (GPU): 0.00ms Should I get also CPU time anyhow? Should I get also CPU frame time? Can anybody help me code getDeltaTime function with instrumentations counters? I test chrome with http://webglreport.com/ and I get WebGL 1 Platform: Linux x86_64 Browser User Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3325.162 Safari/537.36 Context Name: webgl GL Version: WebGL 1.0 (OpenGL ES 2.0 Chromium) Shading Language Version: WebGL GLSL ES 1.0 (OpenGL ES GLSL ES 1.0 Chromium) Vendor: WebKit Renderer: WebKit WebGL Unmasked Vendor: Intel Open Source Technology Center Unmasked Renderer: Mesa DRI Intel(R) Sandybridge Desktop Antialiasing: Available ANGLE: No Major Performance Caveat: No Vertex Shader Max Vertex Attributes: 16 Max Vertex Uniform Vectors: 4096 Max Vertex Texture Image Units: 16 Max Varying Vectors: 32 Best float precision: [-2127, 2127] (23) Transform Feedback Coming in WebGL 2 Rasterizer Aliased Line Width Range: [1, 7.375] Aliased Point Size Range: [1, 255] Fragment Shader Max Fragment Uniform Vectors: 4096 Max Texture Image Units: 16 float/int precision: highp/highp Best float precision: [-2127, 2127] (23) Framebuffer Max Color Buffers: 8 RGBA Bits: [8, 8, 8, 8] Depth / Stencil Bits: [24, 8] Max Render Buffer Size: 8192 Max Viewport Dimensions: [8192, 8192] Textures Max Texture Size: 8192 Max Cube Map Texture Size: 8192 Max Combined Texture Image Units: 48 Max Anisotropy: 16 Uniform Buffers Coming in WebGL 2 Supported Extensions: