Click on the Paint button next to the collision mask. To accomplish this, we can draw a custom collision mask. We want our ice vapor to collide with the sides of the glass and the ice cubes on our image. One important aspect of this example is the collision mask. By increasing the size of the emitter, we also increase the amount of matter that is emitted. Using the editor controls, we position the angle upwards and slightly to the left so that the emitted vapor appears to be flowing upwards out of the glass towards the ice cubes on our image. We now place it on the top of our glass and extend it slightly over the sides. Once you set the line emitter count to 1, you will find the line emitter on your wallpaper. In this case, we change the Rendering mode to Emitter color since we want to set a simple color for our ice vapor. Since we will be working with a single line emitter, we set the Point emitter count to 0 and change the Line emitter count to 1. In order to get started, we first add the effect to our image layer. Your browser does not support the video tag. In this example, we will showcase the line emitter and make use of the collision mask to create an interactive ice vapor effect as shown in the video below. # Advanced Fluid Simulation Effect Samples # Line Emitter: Ice Vapor Example Gravity Strength: Strength of gravity, set to 0.00 to turn gravity off.Gravity Direction: Direction of gravity, makes the fluid flow in the given direction.Lower values can sometimes increase the amount of colors, as large amounts of fluid on one spot will appear white. Saturation: The saturation of any simulation colors.Dissipation: The speed at which the simulation fades away, higher values result in a shorter lifetime.Viscosity: Higher values slow the simulation speed down.Higher values mean that the simulation disappears more quickly. High pass filter: When the remaining lifetime of the fluid reaches this value, it immediately fades away.Note: We do not recommend using a value of 1.00 in combination with using gravity. Pressure: Increases the bounciness of the simulation.Cursor influence: How much the mouse cursor affects the simulation.Curling: The level of curls in the simulation.

Opacity: The opacity of the simulation.

Feather: The speed in which the outline of the simulation fades away.

Brightness: The brightness of the simulation.

Tip: You can drag and drop compatible layers into the dye emitter and Wallpaper Engine will use them as a map in real time. These emitters will only be affected by gravity and mouse input and otherwise stay static.

Dye emitter: Allows you to paint custom emitter locations.

Collision mask: Allows you to draw 'walls' that the simulation with collide with.

Opaque background: When enabled, the background layer will become opaque.

Especially useful when using the Distortion rendering type.

and limit it to certain parts of the layer.

Perspective: When enabled, you can use the four on-screen perspective controls to shift the perspective of the effect.

In most cases, it makes sense to set this value to Normal or Add but you can experiment with this.

Blend mode: The way the effect mixes with the rest of the layer.

Often useful in combination with Perspective enabled.

Distortion: Instead of emitting colored fluid matter, the effect will cause a visual distortion.

Background Color: Will use the color of the background for the color of the simulation.

Emitter Color: Allows you to pick a color for each emitter.

Gradient: Allows to you choose or import a gradient map.

Rendering: The rendering mode, there are four different modes:.

Point emitter count: The number of separate point emitters.

Line emitter count: The number of separate line emitters.

Read the examples towards the bottom of this page to see some examples.

You can add multiple emitters of each type within the same effect. Dye emitters: Allows you to paint static points in a color of your choosing from which matter is emitted.Point emitters: Creates a point from which your matter is emitted into a certain direction.Line emitters: Creates a line in which your matter is emitted into a certain direction.See the bottom of this page for some usage samples.īefore continuing, it is important to understand that effect allows you to emit matter in three main different ways: The effect is relatively complex due to its numerous settings that can be tweaked for the desired behavior. The Advanced Fluid Simulation effect can be used to create different types of interactive smoke, fire and liquid simulations.

Paper dropbox sample