5/9/2023 0 Comments Returnal waterOur enemy team animators briefly experimented doing tentacles using traditional rigid body physics to simulate chains of bones attached to enemy skeletons. Game director Harry Krueger wanted them to resemble deep-sea creatures with properties like bioluminescence and tentacles. NODE PARTICLESįrom early on in the project it was clear that we wanted to do something special with enemy creatures on Atropos. Next we will go over some of the key modules and features of NGP. Other resources like textures, bone matrices and vertex buffers can also be used as inputs for particle effects. Another example is a module called voxeliser which can convert an animated mesh to voxels and that data can be then used for volumetric character effects. For example, we have our own fluid simulation module that can feed its simulation data to NGP. We also have several modules that generate data to be used as an input for effects. It can be conveniently used for controlling per voxel behavior in volumes or for generating dynamic procedural geometry. NGP takes care of memory allocation and most of the boilerplate code, while artists can focus on behavior and visuals.Ĭurrently NGP is not intended to handle only particle effects. This process is not too different from writing particle expressions in Maya or VEX for wrangle nodes in Houdini. Particle authoring is done by vfx artists who write compute shader snippets that define particle behavior and data. Focus is on good performance and flexibility. NGP is designed to be a GPU-only vfx authoring system with minimal CPU overhead. After shipping Alienation, the system was used for Nex Machina and ported to Unreal for Matterfall. In 2014 we made the decision to produce all of the particle effects for Alienation with NGP. After Resogun, the particle system got a graphical user interface and we started referring to it as Next Gen Particle System (NGP). We have been working on our proprietary vfx tech since Resogun (2013 PS4 launch title), where the first prototype of our current particle system was used on some of the showcase effects.
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