Renderer 模块

Renderer 模块的设置决定了粒子的图像或网格如何被其他粒子变换、着色和过度绘制。

Using the Renderer module

This module is part of the Particle System component. When you create a new Particle System GameObject, or add a Particle System component to an existing GameObject, Unity adds the Renderer module to the Particle System. Unity enables this module by default.

To create a new Particle System, go to GameObject > Effects and click on the Particle System option. Unity then creates a new Particle System GameObject and selects it in the Hierarchy window. In the Inspector window, the Particle System component contains all settings and modules related to the Particle System. Select the Renderer module to display options for this module.

API

Because this module is part of the Particle System component, you access it through the ParticleSystem class. For more information on how to access this class and change values at runtime, see Renderer module.

属性

For some properties in this section, you can use different modes to set their value. For information on the modes you can use, see Varying properties over time.

Details

Render Mode

Use Render Mode to choose between several 2D Billboard graphic modes and a Mesh mode. 3D Meshes give particles extra authenticity when they represent solid GameObjects, such as rocks, and can also improve the sense of volume for clouds, fireballs and liquids. Meshes must be read/write enabled to work in the Particle System’s Mesh Render Mode. When you assign meshes to a Particle System (using the Meshes list in the Inspector window), Unity automatically enables the read/write enabled setting for those meshes.

Billboard render modes

When you use 2D billboard graphics, the different render modes can produce a variety of results that make them suitable for specific uses:

• Billboard mode is useful for particles that represent volumes that look similar from any direction (such as clouds).
• Horizontal Billboard mode is useful when the particles cover the ground (such as target indicators and magic spell effects) or when they are flat objects that fly or float parallel to the ground.
• Vertical Billboard mode keeps each particle upright and perpendicular to the XZ plane, but allows it to rotate around its y-axis. This can be helpful when you are using an orthographic Camera and want particle sizes to stay consistent.
• Stretched Billboard mode accentuates the apparent speed of particles in a similar way to the “stretch and squash” techniques used by traditional animators. Note that in Stretched Billboard mode, particles are aligned to face the Camera and also aligned to their velocity. This alignment occurs regardless of the Velocity Scale value - even if Velocity Scale is set to 0, particles in this mode still align to the velocity.

When you use Billboard render modes, you can use the Normal Direction to create spherical shading on the flat rectangular billboards. This can help create the illusion of 3D particles if you use a Material that applies lighting to your particles.

Mesh Distribution: Non-uniform Random

When Mesh Distribution is set to Non-uniform Random, you can customize how often Unity randomly assigns specific meshes to particles. To do this, you use the Meshes list and the Mesh Weighting field.

In the Meshes list, the field on the left contains the mesh you want the Particle System to use, and the field on the right (highlighted in the image above) contains the Mesh Weighting for that mesh. Use the Mesh Weighting field for each mesh to control how often Unity assigns that mesh to a particle, relative to every other mesh. This is set to 1 by default, which results in the likelihood that Unity assigns a mesh being equal.

To add a mesh to the Meshes list, select the Add (+) icon. To remove a mesh from the Meshes list, select the mesh, then select the Remove (-) icon.

• 2018–10–16 页面已发布

• 在 Unity 2018.1 中添加了 GPU 实例化

• 在 2018.3 版中为 Renderer 模块添加了新的粒子系统选项 NewIn20183