Sketch layer

The roller coaster in the above screenshot is rendered with a sketch layer. The model layers are attached to the sketch. The template comes with the installer. It can be found in the BluffTitler\Media\Shows\Sketch folder.



What can I do with the sketch layer?

With the sketch layer you can render animated handwritten texts and sketches.


How do I create a sketch layer?

Choose LAYER > Add layer > Add sketch layer... to create a new sketch layer.

The new sketch layer can be selected from the layers dropdown to make it the active layer.

Examples

The installer comes with shows demonstrating the possibilities of the sketch layer. Choose FILE > Open show... and select a show from the BluffTitler/Media/Shows/Sketch folder.

To quickly switch between your own shows and the ones that come with the installer, click on the Personal and App buttons in the upper right corner of the file dialog.

Bixelangelo

EPS files for use in the sketch layer can be created with Bixelangelo.

You can load another sketch by choosing MEDIA > Change EPS....


Pen size

You can set the pen size with the Pen size property.

Use a negative value to render the inside for tunnels.


Writer

You can animate the sketch with the Writer property.


Attach picture layer

You can attach a picture by choosing LAYER > Attach layer > Attach picture to active layer....

The picture position and rotation are now relative to the tip of the sketch layer, as set with the Writer property.


Attach text layer

You can attach a text by choosing LAYER > Attach layer > Attach text to active layer.

The text position and rotation are now relative to the tip of the sketch layer, as set with the Writer property.


Attach camera layer

You can attach a camera by choosing LAYER > Attach layer > Attach camera to active layer.

The camera position and rotation are now relative to the tip of the sketch layer, as set with the Writer property.

Attached layers are rotated 90 degrees, which is the common situation for texts attached to a 2D sketch. To follow a 3D sketch from the viewpoint of a roller coaster cart, use the following settings:
2nd layer style sketch layer: Attached layers follow sketch
Position property camera layer: (0, -2, 0)
Rotation property camera layer: (90, 0, 180)


Bitmap tracer

Bitmap tracer

Next to EPS files, the sketch layer also accepts bitmaps, like PNG, BMP, TGA and GIF files. The picture is automatically traced and turned into a vector.

You can trace another picture by choosing MEDIA > Change EPS....


Input picture

Best results are achieved when using a logo on a transparent background with a resolution of about 2000 pixels without small details at the edges. For logos without round edges the resolution can be smaller.

Quality

You can improve the quality by tracing a higher resolution picture.

The sketch layer also listens to the SETTINGS > Low/Normal/High quality menus.

Sketch layer style 1

Flat


Square


Bevel


Circle


Halfpipe


Rails


Star


Sketch layer style 2

Attached layers point upwards

Attached layer always point upwards.


Attached layers follow sketch

Attached layers follow the curves of the sketch.


Sketch layer style 3

Closed

The sketch is a closed at both ends.


Open

The sketch is open at both ends.


Sketch layer properties

Position

The position of the sketch.


Rotation

The rotation of the sketch.


Size

The size of the sketch.


Pen size

The width and the height of the pen.


Pen size progression

This controls the way the pen size changes along the path. The 1st slider controls the size in the middle and the 2nd slider at the start and end points.


Pen rotation

The rotation of the pen.


Colour

The diffuse colour of the sketch.


Specular colour

The colour used for specular highlights. If this property is (0,0,0), the diffuse colour is used as the specular colour.


Specularity

The size of the specular highlights.


Transparency

The transparency of the sketch.


Offset

A position offset relative to the orientation of the sketch points.

A roller coaster rail can be created with 2 or more sketch layers all using the same EPS, but with different offset and radius properties.


Italic

The extra displacement of the last point.


Writer

Animates the sketch. 1st slider controls the end position, 2nd slider the start position. This is in analogy with the same property of the text layer.


Writer offset

This value is added to the Writer property after applying physics. This can be used to keep a fixed distance between the cars of a roller coaster train.


Texture position, Texture size

The position and size of the texture.


Smooth

Smoothes the sketch.


Gravity, Friction, Initial speed, Minimum speed

When the Gravity property is not 0, the sketch is animated with physics. Animate the Writer property at constant speed and BluffTitler does the rest. This can be used to simulate roller coaster cars, planes, trains and other vehicles.

Use a higher Gravity value to make the vehicle respond more to the ups and downs. Use a higher Friction value to make the vehicle slow down faster. The Minimum speed is used to prevent the vehicle from standing still or even moving backwards in badly designed roller coasters. The initial speed is set with the Initial speed property.

The start, end and duration of the animation is controlled with the keyframe positions and values of the Writer property.


Depth bias

This property can be used to solve sorting problems.