Set the survival time of particlesĪfter making the basic effects of particles, add Light module to the transmitter to achieve the illumination effect of the flame, which will accompany the life cycle of the flame. Set the generation rate of the particle spawn module and the particle lifetime of the Lifetime module to simulate the real flame effect as far as possible.įigure 9.Because the particles always face the camera, Z-axis settings will not take effect.įigure 6. Use the Initial Size module to set the initial size of the flame, select the Distribution Vector Constant distribution, and then only set X and Y parameters.This achieves the effect of always facing the camera and controls the shape of the flame (aspect ratio) through SizeX and SizeY. Set the screen alignment to PSA (Particle Screen Alignment) Rectangle.You build a particle system by selecting the required module, and then specifying the material used by the transmitter as the flame material made before. Flame material How to Make Flame Particles The shaking effect of the flame burning is represented in the flame material by superimposing the noise texture over the original texture of the flame.įigure 4. To create this effect, you make the flame materials and then use that as the particle material. The main visual presentation of the flame is a flame effect. Candle model preview Make the Flame Material Instead of making different models for different candles, three different candles are made into one model to simplify the production and use. In this example, content was already created and imported. Produce the candle model including candle mesh and material.Īrtists use special 3D modeling software to create the candle model.The production of candles is divided into two parts: Game screen performance Prepare the Candle Model The flame effect of candles is achieved by using CPU particles, and the dynamic light effect is achieved by using the light module of CPU particles.įigure 2. The light provided by the candles is intended to be adjusted according to the flame dynamics. In the initial scene of the Sinner game, candle decorations were added to better portray the game atmosphere. At the same time, powerful multicore CPU processing performance can also share part of the GPU pressure. So, why then are CPU particles still used? Because although GPU particles have absolute advantages in number, they can’t support all particle characteristics, such as the light module. ![]() The maximum number of GPU particles supported is much larger than CPU particles. The particle effect in Unreal Engine can be realized by either the GPU or CPU. This article illustrates the Unreal Engine* CPU particle effect through the example of the game Sinner: Sacrifice for Redemption. Version 4.19 of Unreal Engine* enables games to benefit from the performance of Intel® multicore processors and deliver more exciting experiences. Co-authored with: Hao Zhang, Darkstar Games
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