The scene, and the higher quality the render will be - which means less Noise in the render. Scene gets sampled, the more information V-Ray is able to gather about Many Primary and Secondary Samples are needed to be taken. In order to accurately figure out what's going on in a scene, Sample of a scene to gather information about what's going on in it. 'Samples' - because that's what the purpose of a Ray is - to take a Geometry, and send out various Secondary Rays to sample the scene.įrom this point forward, we'll simply refer to 'Rays' as Rays are sent out from the camera into the scene, intersect with If you already know the underlying concepts and just want the technical step-by-step procedure, click here to skip right to it. Procedure to optimize any scene to render with an ideal balance of
What cause slow renders nuke 10 how to#
Then we'll learn how to identify the different sources of Scene to demonstrate exactly how a render can be optimized to be fasterĪnd cleaner. We'll first cover some of the underlying concepts behind how Times - in some extreme cases ranging between 3x faster to 13x faster than the universal settings. The hood, you can achieve a higher quality result WITH faster render But with a bit of understanding of how V-Ray works under Render becomes clean enough - thinking that it's the best / fastest that (Anti-Aliasing, or AA) Max Subdivs value set very high (like 50 orġ00), and then simply lowering the noise threshold value until the
Many times you'll seeĪrtists adopt the 'Universal V-Ray Settings' of having the Image Sampler V-Ray's sampling and what 'ideal' settings are. There's often a lot of confusion surrounding the topic of Quality and fastest render time for a given scene. Optimizing your V-Ray render settings to get the best possible render This tutorial attempts to cover and clarify the process of # tProgress( int( float(curTask) / ames() *100) ) Rotate = matrixCreated.rotationsZXY() # give us xyz rotations from cam matrix (must be converted to degrees)Ĭam.setValueAt(float(translate.x),frame,0)Ĭam.setValueAt(float(translate.y),frame,1)Ĭam.setValueAt(float(translate.z),frame,2)Ĭam.setValueAt(float(grees(rotate)),frame,0)Ĭam.setValueAt(float(grees(rotate)),frame,1)Ĭam.setValueAt(float(grees(rotate)),frame,2) Translate = ansform(3(0,0,0)) # Get a vector that represents the camera translation MatrixCreated.rotateX(math.radians(-90)) # this is needed for VRay. #Create a matrix to shove the original data into
MatrixCamera = tadata( 'exr/cameraTransform', frame) # get camera transform data Val = tadata( 'exr/cameraAperture', frame) # get horizontal apertureįov = tadata( 'exr/cameraFov', frame) # get camera FOVįocal = val / (2 * math.tan(math.radians(fov)/2.0)) # convert the fov and aperture into focal lengthĬam.setValueAt(float(focal),frame)Ĭam.setValueAt(float(val),frame) Set the haperture knob as per the metadata, and derive the focal length from the FOV # Or, you could keep the focal as is in the metadata, and change the horizontal_aperture instead. # then you should use the FOV in the metadata to figure out the correct focal length for Nuke's camera If you set the horizontal aperture as it is in the metadata, # Nuke always fits to the horizontal aperture.
# your Nuke camera will have the same FOV as the one that rendered the scene (because the render could have been fit to horizontal, to vertical, etc) If you get both focal and aperture as they are in the metadata, there's no guarantee
#tMessage( 'processing frame %s' % frame ) #nuke.executeInMainThread( ssage, args=( "Phew!" ) ) #task = nuke.ProgressTask( 'Baking camera from meta data in %s' % node.name() )įor curTask, frame in enumerate( fRange ): Ret = nuke.getFramesAndViews( 'Create Camera from Metadata', '%s-%s' %( first, last ) )įor k in ( 'focal', 'haperture', 'translate', 'rotate'): If not set( reqFields ).issubset( mDat ): # TODO : add progress bar (even though it's really not needed here) that works
What cause slow renders nuke 10 code#
#Also thanks to Nathan Dunsworth for giving me solid ideas and some code to get me started. #Big thanks to Ivan Busquets who helped me put this together! This works specifically on VRay data coming from maya. Toolbar.addCommand("Create Camera from EXR", "createExrCamVray.createExrCamVray(lectedNode())", icon="/Users/YourUsername/.nuke/exr2cam.png")Ĭreate a camera node based on VRay metadata. M.addCommand("Create Camera from EXR", "createExrCamVray.createExrCamVray(lectedNode())") nu("Nodes").addMenu("3D").addCommand("Create Camera from Vray EXR", "createExrCamVray.createExrCamVray(lectedNode())") I took this from, it didnt work for me so i fiddles with the code and got it working.
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