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Game Development and Simulation with Unreal Technology
book

Game Development and Simulation with Unreal Technology

by Alireza Tavakkoli
August 2015
Intermediate to advanced content levelIntermediate to advanced
701 pages
23h 35m
English
CRC Press
Content preview from Game Development and Simulation with Unreal Technology
Material Expressions in Unreal Engine 4 661
SPHERICAL PARTICLE OPACITY
This expression provides a less expensive mechanism to create opacity masks that
would allow a particle to appear sph erical.
Example Usa ge: Use the output channel of a Particle Speed to drive the opacity
texture or the emissive co lor networks of a material. Connecting the result of
these networks to the Emissive or Opacity channels of a material node will create
particles that will fade as they slow down, or get more opaque and glow more as
their speeds in crease (see Figure 5.10).
Inputs
Density: A value ranging between 0 and 1 that controls the density of the sphere
map. Default value is 1, which results in more opaque particles.
PARTICLE SUB UV
This expression can be used to ...
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Publisher Resources

ISBN: 9781498706254