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manual/grease_pencil/layers_and_animation.rst
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| Layers | Layers | ||||
| ****** | ****** | ||||
| Grease Pencil sketches are organized in layers, | Grease Pencil sketches are organized in overlaid layers | ||||
| much like those you could find in the GIMP or Photoshop. | much like the image layers in the GIMP or Photoshop. | ||||
| These layers are not related to any of the other layer systems in Blender, | These layers are not related to any of the other layer systems in Blender. | ||||
| and also do not have an upper limit on the maximum number of layers that can be used. | |||||
| Like the layers in the aforementioned applications, these layers can also be renamed, locked, | |||||
| hidden, and deleted. | |||||
| Their main purpose is to collect together a bunch of sketches that belong together in some | The layers' main purpose is to gather sketches that are related in some | ||||
| meaningful way (i.e. "blocking notes", "director's comments on blocking", or "guidelines"). | meaningful way (i.e. "blocking notes", "director's comments on blocking", or "guidelines"). | ||||
| For this reason, all the strokes on a layer (not just those made after a particular change) | For this reason, all the strokes on a layer (not just those made after a particular change) | ||||
| are affected by that layer's color, opacity, and stroke thickness settings. | are affected by that layer's color, opacity, and stroke thickness settings. | ||||
| By default, most operations occur only on the *active* layer. | Layers are managed in the | ||||
| The active layer can be identified as the one with the different panel color | *Grease Pencil Panel* of the *Properties* shelf (:kbd:`N`) shown here. | ||||
| (in the default set, a light orangy-brown color). Clicking on a layer, | |||||
| or changing any of its settings will make it the new active layer. | |||||
| The active layer can also be identified by looking at the status indicator | .. figure:: /images/grease_pencil_layers_list.jpg | ||||
| (in the top right-hand corner of every view with Grease Pencil data being shown). | |||||
| Grease Pencil Panel | |||||
| Use the adjacent controls to Add, Remove or adjust the position of a layer in the list. | |||||
| Each layer has a visibility icon, and a lock icon to protect it from from further changes. | |||||
| Double click on a layer name to rename it. | |||||
| There is a list of layers attached to each scene and a list of layers associated with each object. | |||||
| The buttons above the list box controls its contents showing either the layers associated with the active scene, | |||||
| or the list of layers associated with the active object. | |||||
| By default, most operations occur only on the *active* layer hilited in the list. | |||||
| Animation of the Sketches | Animation of the Sketches | ||||
| ========================= | ========================= | ||||
| Grease Pencil can be used to do basic pencil tests (i.e. 2D animation in flipbook style). | Use the Grease Pencil to do basic pencil tests (i.e. 2D animation in flipbook style). | ||||
| Sketches are stored on the frame that they were drawn on, as a separate drawing | Sketches are stored on the frame that they were drawn on, as a separate drawing | ||||
| (only on the layer that they exist on). | (only on the layer that they exist on). | ||||
| Each drawing is visible until the next drawing for that layer is encountered. | Each drawing is visible until the next drawing for that layer is encountered. | ||||
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| Onion Skinning | Onion Skinning | ||||
| -------------- | -------------- | ||||
| Onion-skinning (also known as ghosting), is a useful tool for animators, as neighboring frame | .. figure:: /images/grease_pencil_layers_onion.jpg | ||||
| (s) are lightly drawn by Blender. It allows animators to make judgments about movements, | |||||
| by comparing movement from different frames. | |||||
| Usage Notes: | Grease Pencil Onion Skinning | ||||
| - Onion-skinning is enabled per layer by clicking on the *Onion Skin* button in the grease pencil properties panel. | Onion-skinning, also known as ghosting, helps an animator express motion by displaying the neighboring frames | ||||
| - The *Frames* field, directly under the *Onion Skin* button, controls how many frames will be drawn. | as a faded trail. | ||||
| When *Frames* is **0**, only the drawing on either side of the current frame will be visible. | Enable the option with the *Onion Skin* button in the grease pencil properties panel (shown above). | ||||
| Otherwise, this field specifies the maximum number of frames on either side of the | Use *Before* and *After* to set the number of ghost frames drawn on either side of the current frame. | ||||
| current frame that will result in a neighboring drawing. | When *Use Custom Colors* (Marked A) is enabled, you can also use the *Before* and *After* controls to change the color of the ghosted frames. | ||||
| Adjusting Timing of Sketches | Adjusting Timing of Sketches | ||||
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