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Showing results for tags 'flowmap'.
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Q: noise's offset will change freq?!Use noise vop for simple river Hi everyone, I am trying to use noise deform for river Inspired by gameDev's flow map Use surface velocity direction multiple time then plug into the offset of noise Looks great in begin But In the end, it will change freq of noise freq is getting high and higher I don’t know why? any advice thanks~ video hip
Sophie posted a topic in General Houdini QuestionsHi there, For a school project I am working on a river. I am getting very nice results with the standard flowmap tools already, but I wanted to change some things. First of all, I wanted the river to flow quicker where it is narrow, because velocity = flowrate/area. This does work. Note that to make this work, I went into the flowmap to color node and got rid of the normalize, because I want values over 1 for the speed. Then I also wanted the water to flow quicker, so I thought I'll just take v.y and multiply it with 9.81. This seems to work at first hand, but then at the top of the slopes of my river, the water seems to flow in the opposite direction (back up). I am not entirely sure why this happens. When I set the gravity to a lower value, like 3, this doesn't really happen yet (or at least not visible). Can anyone explain to me why this is happening? Also, is there a better way of achieving this result, rather than just not normalizing any of the vectors?
FlowMaps and RiversHow exactly do you do the workflow for Flowmaps. I know there's the comb and obstacle nodes in the gameshelf, but if you wanted to copy a fluid simulation, would it be as simple as doing:0. Timeshift/freezeframe your fluid mesh1. Attribute transfer the velocity onto your flat river plane from your sculpted fluid sim. 2. Then with a wrangle, normalize the velocity attribute, then add the X/z values to the UVs? ie @uv += @velocity;I know people blend the uvs back and forth - one with rest one with the distorted UVs but not sure how to do that - I mean I know how to add the layer node to create a uv2, uv3 etc, but as far as importing into unreal, the extra uv sets created in Houdini don't translate over on my meshes only showing one UV set. For Vorticity/foam - I'm assuming you just make a vertex colored mask then blend/lerp to your content?
Hello, first post on this forum. Can someone give me some guidance on hooking up the new flowmap tool. I want to test it with a pyro effect. Hooking them up at the object level does not work. Bit of a nube here.
FX Adventures in Uncharted 4: A Thief's EndHello! I'd like to share with you an interview with two FX artists from Naughty Dog who worked on Uncharted 4: A Thief's End. In it, Neilan Naicker and Ray Popka talk about using Houdini for doing destruction, rigid body fracturing, ingame dynamic rivers/flowmap generation and spawning thousands of running chickens! See full interview here: http://www.sidefx.com/stories/fx-adventures-in-uncharted-4-a-thiefs-end/