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Monster Mash Help×Quick StartFollow these three steps to quickly become familiar with the basic usage of Monster Mash. See the rest of the page for more details.1Draw a character2Inflate it and move it around3Animate itExample GalleryClick/tap on an example below to open it.Give us FeedbackWe have created a user forum for dissussions about Monster Mash which is available at forum.monstermash.zone. You can use it to share your results with us or to let us know what you think about the tool. The forum code is .What's NewAugust 28, 2022Added an option to create a layer from a mask image, which also opens up the possibility to create layers with holes. Learn more…October 29, 2021Added an option to move layers in depth. Learn more…April 30, 2021A new user forum for discussion about Monster Mash is available at forum.monstermash.zone. From now on, please use this forum instead of the older CGSociety thread.March 9, 2021The entire textured animation can be exported to the glTF format, which allows importing the results into various 3D modeling software (tested in Blender). Read more…December 15, 2020Added a link to a discussion thread about Monster Mash.December 2, 2020The current animation frame can be exported to the Wavefront .obj file also with a material .mtl and texture .png files. Read more…Detailed Information1. Getting StartedMonster Mash is a new sketch-based modeling and animation tool that allows you to quickly sketch a character, inflate it into 3D, and promptly animate it. You can perform all interactions in the sketching plane. No 3D manipulation is required.This demo accompanies a paper Dvorožňák et al.: Monster Mash: A Single-View Approach to Casual 3D Modeling and Animation published in ACM Transactions on Graphics 39(6):214 and presented at SIGGRAPH Asia 2020 conference. The source code for this demo is available under the Apache-2.0 license. The demo is free to use for evaluation and research purposes.1.1. RequirementsMonster Mash demo should work on any platform in a recent browser that supports WebAssembly & WebGL 1.0. The device should also have sufficient computational resources. If the Monster Mash demo is crashing on your device, please check if you have installed the latest version of the operating system and your favorite web browser.Although the Monster Mash demo should also work on recent more powerful phones, it is preferable to use it on a tablet with a larger screen. The current user interface is not optimized for small screens.Monster Mash demo can be controlled using a mouse, touch, or stylus. For the best experience, we recommend using a stylus on a tablet.2. Creation ModesThe tool offers three basic modes of creation: Draw, Inflate, and Animate.2.1. Draw ModeIn the 1Draw mode, you can sketch a character part by part using strokes that delineate boundaries of individual regions. The order in which you create the regions corresponds to their relative order in depth. Each region's boundary is represented by a single stroke (opened or closed) that you can create using a click/tap-move-release sequence (using the left mouse button or a stylus/touch). Closed strokes delineate regions that represent the character's main body. Opened strokes are used for regions that are smoothly attached to other regions (e.g., limbs). The gap in the stroke is automatically closed by a line that outlines a junction along which the newly drawn region is smoothly connected to another region.In addition to drawing strokes, you can click/tap anywhere inside the region to select it or double-click/tap to make its duplicate and place it behind already drawn regions. Selected regions can be deleted using the button in the menu. You can also select multiple regions by clicking/tapping and dragging a selection rectangle over them, or select/deselect them all in the sub-menu.Now, let's try to create a simple monster. We start by scribbling the main body; then we add limbs and eyes. As we need limbs to be attached to the main body, we draw an open curve, and the system automatically connects it. To create limbs and eyes on both sides of the main body, we duplicate them using a double-click/tap.Draw mode2.2. Inflate ModeThe 2Inflate mode is useful for a quick preview of the resulting 3D model. You can rotate (middle mouse button) or pan (with shift pressed). If you are using a stylus/touch or you do not have a middle mouse button, you need to switch on the button in the main menu and use click/tap-move-release to rotate (left mouse button). When the button is off, you can play with the model by clicking/tapping on its parts and moving them around.2.3. Animation ModeAfter clicking/tapping on 3Animate button in the menu the model can be animated by placing control pins on it and moving them around. Tap or click using left mouse button to create a control pin and drag it to make it move. Control pins can be selected by clicking/tapping on them and deleted using the button in the menu. You can also select multiple control pins by clicking/tapping and dragging a selection rectangle over them. Alternatively, you can select/deselect all control pins or change their visibility in the sub-menu where you can also use option Copy selected animation and Paste animation to transfer already recorded motion to other control pins.Animation mode: Placing control pinsThe position of multiple control pins can be recorded in time and played back to create more complex animation. To activate the recording, press the button (it will turn red). Then by tapping or clicking on a control pin, the recording starts and stops when the mouse button, touch, or stylus is released. The animation can be paused and played back again by pressing the and button.Animation mode: Recording position of control pinsThe system uses a simple strategy the synchronize the motion with other pins. The first pin motion you record will define the length of the entire animation cycle. A pin that corresponds to this master motion is marked with green color, and its position in the first frame is denoted as a bold black dot laying on its recorded motion trajectory. The system automatically starts the motion of a new recorded control pin at a frame that corresponds to the currently played frame of the master pin. You can shift this relative position in time using plus and minus keys on the keyboard.2.4. Redraw ModeThe 1Draw button has a special Redraw option, which you can use to alter the shape of existing regions by re-sketching them without modifying their relative depth order. To do that, you can select a region that you want to change and redraw it. Note that it is necessary to redraw the entire shape of the modified region.Redraw mode3. Create/Open/Save/Export ProjectMonster Mash demo starts with a new empty project. You can always get back to this initial state by clicking/tapping on the button in the main menu. You can also open an existing project from your local hard-drive using the button or load some of the examples visible on this help page. When you create an animated 3D model, you can save it onto your local hard-drive using the button.Optionally, you can upload a template image (using button's option Import template image…) over which you can then trace. This template image will also be used as a texture of the final 3D model. Alternatively, you can also upload a background image (using button's option Import background image…) which will replace the default white background. You can show/hide the template image as well as your custom background by checking/unchecking their visibility in the sub-menu or alternatively switch on/off the shading effect using Enable shading option. Note that the supplied images will be scaled to fit the canvas if they have a resolution other than 1000x800. If you don't want any scaling, please stick to the specified resolution.If you would like to use an external image editor to prepare layers for Monster Mash, you can use Create layer from mask… in the button's sub-menu. This option expects the supplied image to either have an alpha channel, of which fully transparent parts are treated as background, or in case alpha channel is missing, black color is supposed to denote background. You can load multiple layers this way, which are stacked on top of each other. You can then move layers as needed using hot keys. Note that the supplied image will be scaled to fit the canvas if it has a resolution other than 1000x800. If you don't want any scaling, please stick to the specified resolution.When you already draw a shape in the Monster Mash demo which you would like to texture, use button's option Export a template image…. This option allows you to save an image of the current shape on your hard-drive over which you can then draw using your favorite drawing/painting tool and then upload it back using the button's option Import template image….Export to OBJ file. The current animation frame can be exported to the Wavefront .obj file by selecting Export the current animation frame as .obj file… from the sub-menu of the save button . If a template image is mapped to the mesh and Show template image option in the sub-menu is checked, a material .mtl file with a .png texture image is also exported.Export animation to glTF. The entire textured animation can be exported to the glTF format (.glb file), which allows importing the results into various 3D modeling software (tested in Blender). To access this feature, switch to the 3Animate mode and select Export animation as glTF (.glb file)… from the sub-menu of the save button . The export first generates the file in the memory which may cause Monster Mash to crash if the animation being exported is too large. Therefore, make sure to save the project before exporting it. The exported file may be directly imported into a recent version of Blender. After importing the file, make sure to turn on the texture projection in the Viewport Shading menu in Blender. Individual animation frames are exported as Morph Targets, which are converted to Shape Keys in Blender. Note that the resulting animation is vertex-based, i.e. keyframed animation of individual vertices of a mesh (opposed to the traditional skeleton-based animation).4. Other SettingsIn the sub-menu, there is also an Other settings option where you can enable/disable experimental armpit stitching algorithm and normal smoothing of the resulting 3D mesh.5. Mouse buttons Draw Mode:Click-and-move: Draw a boundary of a main body part or a part that lies in front of already drawn parts.Single click: Select an existing part that is closest to the mouse pointer and lies closest in depth.Shift + Single click: Add an existing part to the current selection or remove it from the current selection.Double click: Duplicate an existing part and move it in depth to lay behind the other drawn parts.Inflation Mode:Click-and-move: Move a part of the model that is closest to the mouse pointer and lies closest in depth.Animation Mode:Click: (a) Create a new control pin so that it is closest to the mouse pointer and lies on a part that is closest in depth or (b) select already existing control pin that is closest to the mouse pointer and lies closest in depth.Shift + Click: Add an existing control pin to the current selection or remove it from the current selection.Click-and-move: Create and animate a new control pin or just animate closest pin. Inflation & Animation Mode:Click-and-move: Rotate (or pan with Shift pressed) the 3D model. Right mouse button performs the same actions as the left mouse button with these exceptions:It draws behind already drawn parts.It selects a part that lies farthest in depth.It creates a new control pin so that it lies on a part that is farthest in depth or selects a control pin that lies farthest in depth.It duplicates an existing part and moves it in depth to lay in front of the other drawn parts.6. Hot-keysN Start a new project.Ctrl + O Open an existing project.Ctrl + S Save a current project.1 Switch to Draw Mode.2 Switch to Inflate Mode.3 Switch to Animate Mode.E Switch animation recording mode on/off. The actual recording of pin position will start after clicking/tapping on a pin and stop after releasing.Space Play/Pause animation.H Switch display of control pins on/off.Ctrl + C Copy a selected animation.Ctrl + V Paste animation to all selected control pins.Ctrl + A Select all parts or control pins.Esc Deselect all parts or control pins.Delete or Backspace Remove selected part or control pin.+ Offset control pin animation forward in time.− Offset control pin animation backward in time.PgUp Move selected layers one step closer in depth.PgDn Move selected layers one step further in depth.Home Move selected layers closest in depth.End Move selected layers furthest in depth.Older Versions2210240326220828195521102903492103192337Monster Mash v. 230112CloseSettings×Armpits stitching (experimental): EnableNormal smoothing: EnableCloseExport to glTF×Warning: The export first generates the file in the memory which may cause Monster Mash to crash if the animation being exported is too large. Therefore, make sure to save the project before exporting it.Animation length: framesPre-roll frames:Number of frames to precompute before exporting the sequence. Useful for obtaining animation loops without glitches.Full quality: EnableCheck this box to resolve the depth during the export. Uncheck for faster exports, which may, however, include interpenetrations.Per-frame normals: EnableCheck this option to also export normals for each frame. The resulting file will be twice as large.Export CancelClose --- Monster Mash Help×Quick StartFollow these three steps to quickly become familiar with the basic usage of Monster Mash. See the rest of the page for more details.1Draw a character2Inflate it and move it around3Animate itExample GalleryClick/tap on an example below to open it.Give us FeedbackWe have created a user forum for dissussions about Monster Mash which is available at forum.monstermash.zone. You can use it to share your results with us or to let us know what you think about the tool. The forum code is .What's NewAugust 28, 2022Added an option to create a layer from a mask image, which also opens up the possibility to create layers with holes. Learn more…October 29, 2021Added an option to move layers in depth. Learn more…April 30, 2021A new user forum for discussion about Monster Mash is available at forum.monstermash.zone. From now on, please use this forum instead of the older CGSociety thread.March 9, 2021The entire textured animation can be exported to the glTF format, which allows importing the results into various 3D modeling software (tested in Blender). Read more…December 15, 2020Added a link to a discussion thread about Monster Mash.December 2, 2020The current animation frame can be exported to the Wavefront .obj file also with a material .mtl and texture .png files. Read more…Detailed Information1. Getting StartedMonster Mash is a new sketch-based modeling and animation tool that allows you to quickly sketch a character, inflate it into 3D, and promptly animate it. You can perform all interactions in the sketching plane. No 3D manipulation is required.This demo accompanies a paper Dvorožňák et al.: Monster Mash: A Single-View Approach to Casual 3D Modeling and Animation published in ACM Transactions on Graphics 39(6):214 and presented at SIGGRAPH Asia 2020 conference. The source code for this demo is available under the Apache-2.0 license. The demo is free to use for evaluation and research purposes.1.1. RequirementsMonster Mash demo should work on any platform in a recent browser that supports WebAssembly & WebGL 1.0. The device should also have sufficient computational resources. If the Monster Mash demo is crashing on your device, please check if you have installed the latest version of the operating system and your favorite web browser.Although the Monster Mash demo should also work on recent more powerful phones, it is preferable to use it on a tablet with a larger screen. The current user interface is not optimized for small screens.Monster Mash demo can be controlled using a mouse, touch, or stylus. For the best experience, we recommend using a stylus on a tablet.2. Creation ModesThe tool offers three basic modes of creation: Draw, Inflate, and Animate.2.1. Draw ModeIn the 1Draw mode, you can sketch a character part by part using strokes that delineate boundaries of individual regions. The order in which you create the regions corresponds to their relative order in depth. Each region's boundary is represented by a single stroke (opened or closed) that you can create using a click/tap-move-release sequence (using the left mouse button or a stylus/touch). Closed strokes delineate regions that represent the character's main body. Opened strokes are used for regions that are smoothly attached to other regions (e.g., limbs). The gap in the stroke is automatically closed by a line that outlines a junction along which the newly drawn region is smoothly connected to another region.In addition to drawing strokes, you can click/tap anywhere inside the region to select it or double-click/tap to make its duplicate and place it behind already drawn regions. Selected regions can be deleted using the button in the menu. You can also select multiple regions by clicking/tapping and dragging a selection rectangle over them, or select/deselect them all in the sub-menu.Now, let's try to create a simple monster. We start by scribbling the main body; then we add limbs and eyes. As we need limbs to be attached to the main body, we draw an open curve, and the system automatically connects it. To create limbs and eyes on both sides of the main body, we duplicate them using a double-click/tap.Draw mode2.2. Inflate ModeThe 2Inflate mode is useful for a quick preview of the resulting 3D model. You can rotate (middle mouse button) or pan (with shift pressed). If you are using a stylus/touch or you do not have a middle mouse button, you need to switch on the button in the main menu and use click/tap-move-release to rotate (left mouse button). When the button is off, you can play with the model by clicking/tapping on its parts and moving them around.2.3. Animation ModeAfter clicking/tapping on 3Animate button in the menu the model can be animated by placing control pins on it and moving them around. Tap or click using left mouse button to create a control pin and drag it to make it move. Control pins can be selected by clicking/tapping on them and deleted using the button in the menu. You can also select multiple control pins by clicking/tapping and dragging a selection rectangle over them. Alternatively, you can select/deselect all control pins or change their visibility in the sub-menu where you can also use option Copy selected animation and Paste animation to transfer already recorded motion to other control pins.Animation mode: Placing control pinsThe position of multiple control pins can be recorded in time and played back to create more complex animation. To activate the recording, press the button (it will turn red). Then by tapping or clicking on a control pin, the recording starts and stops when the mouse button, touch, or stylus is released. The animation can be paused and played back again by pressing the and button.Animation mode: Recording position of control pinsThe system uses a simple strategy the synchronize the motion with other pins. The first pin motion you record will define the length of the entire animation cycle. A pin that corresponds to this master motion is marked with green color, and its position in the first frame is denoted as a bold black dot laying on its recorded motion trajectory. The system automatically starts the motion of a new recorded control pin at a frame that corresponds to the currently played frame of the master pin. You can shift this relative position in time using plus and minus keys on the keyboard.2.4. Redraw ModeThe 1Draw button has a special Redraw option, which you can use to alter the shape of existing regions by re-sketching them without modifying their relative depth order. To do that, you can select a region that you want to change and redraw it. Note that it is necessary to redraw the entire shape of the modified region.Redraw mode3. Create/Open/Save/Export ProjectMonster Mash demo starts with a new empty project. You can always get back to this initial state by clicking/tapping on the button in the main menu. You can also open an existing project from your local hard-drive using the button or load some of the examples visible on this help page. When you create an animated 3D model, you can save it onto your local hard-drive using the button.Optionally, you can upload a template image (using button's option Import template image…) over which you can then trace. This template image will also be used as a texture of the final 3D model. Alternatively, you can also upload a background image (using button's option Import background image…) which will replace the default white background. You can show/hide the template image as well as your custom background by checking/unchecking their visibility in the sub-menu or alternatively switch on/off the shading effect using Enable shading option. Note that the supplied images will be scaled to fit the canvas if they are larger than 1000x800. If you don't want any scaling, please stick to the specified resolution.If you would like to use an external image editor to prepare layers for Monster Mash, you can use Create layer from mask… in the button's sub-menu. This option expects the supplied image to either have an alpha channel, of which fully transparent parts are treated as background, or in case alpha channel is missing, black color is supposed to denote background. You can load multiple layers this way, which are stacked on top of each other. You can then move layers as needed using hot keys. Note that the supplied image will be scaled to fit the canvas if it is larger than 1000x800. If you don't want any scaling, please stick to the specified resolution.When you already draw a shape in the Monster Mash demo which you would like to texture, use button's option Export a template image…. This option allows you to save an image of the current shape on your hard-drive over which you can then draw using your favorite drawing/painting tool and then upload it back using the button's option Import template image….Export to OBJ file. The current animation frame can be exported to the Wavefront .obj file by selecting Export the current animation frame as .obj file… from the sub-menu of the save button . If a template image is mapped to the mesh and Show template image option in the sub-menu is checked, a material .mtl file with a .png texture image is also exported.Export animation to glTF. The entire textured animation can be exported to the glTF format (.glb file), which allows importing the results into various 3D modeling software (tested in Blender). To access this feature, switch to the 3Animate mode and select Export animation as glTF (.glb file)… from the sub-menu of the save button . The export first generates the file in the memory which may cause Monster Mash to crash if the animation being exported is too large. Therefore, make sure to save the project before exporting it. The exported file may be directly imported into a recent version of Blender. After importing the file, make sure to turn on the texture projection in the Viewport Shading menu in Blender. Individual animation frames are exported as Morph Targets, which are converted to Shape Keys in Blender. Note that the resulting animation is vertex-based, i.e. keyframed animation of individual vertices of a mesh (opposed to the traditional skeleton-based animation).4. Other SettingsIn the sub-menu, there is also an Other settings option where you can enable/disable experimental armpit stitching algorithm and normal smoothing of the resulting 3D mesh.5. Mouse buttons Draw Mode:Click-and-move: Draw a boundary of a main body part or a part that lies in front of already drawn parts.Single click: Select an existing part that is closest to the mouse pointer and lies closest in depth.Shift + Single click: Add an existing part to the current selection or remove it from the current selection.Double click: Duplicate an existing part and move it in depth to lay behind the other drawn parts.Inflation Mode:Click-and-move: Move a part of the model that is closest to the mouse pointer and lies closest in depth.Animation Mode:Click: (a) Create a new control pin so that it is closest to the mouse pointer and lies on a part that is closest in depth or (b) select already existing control pin that is closest to the mouse pointer and lies closest in depth.Shift + Click: Add an existing control pin to the current selection or remove it from the current selection.Click-and-move: Create and animate a new control pin or just animate closest pin. Inflation & Animation Mode:Click-and-move: Rotate (or pan with Shift pressed) the 3D model. Right mouse button performs the same actions as the left mouse button with these exceptions:It draws behind already drawn parts.It selects a part that lies farthest in depth.It creates a new control pin so that it lies on a part that is farthest in depth or selects a control pin that lies farthest in depth.It duplicates an existing part and moves it in depth to lay in front of the other drawn parts.6. Hot-keysN Start a new project.Ctrl + O Open an existing project.Ctrl + S Save a current project.1 Switch to Draw Mode.2 Switch to Inflate Mode.3 Switch to Animate Mode.E Switch animation recording mode on/off. The actual recording of pin position will start after clicking/tapping on a pin and stop after releasing.Space Play/Pause animation.H Switch display of control pins on/off.Ctrl + C Copy a selected animation.Ctrl + V Paste animation to all selected control pins.Ctrl + A Select all parts or control pins.Esc Deselect all parts or control pins.Delete or Backspace Remove selected part or control pin.+ Offset control pin animation forward in time.− Offset control pin animation backward in time.PgUp Move selected layers one step closer in depth.PgDn Move selected layers one step further in depth.Home Move selected layers closest in depth.End Move selected layers furthest in depth.Older Versions21102903492103192337Monster Mash v. CloseSettings×Armpits stitching (experimental): EnableNormal smoothing: EnableCloseExport to glTF×Warning: The export first generates the file in the memory which may cause Monster Mash to crash if the animation being exported is too large. Therefore, make sure to save the project before exporting it.Animation length: framesPre-roll frames:Number of frames to precompute before exporting the sequence. Useful for obtaining animation loops without glitches.Full quality: EnableCheck this box to resolve the depth during the export. Uncheck for faster exports, which may, however, include interpenetrations.Per-frame normals: EnableCheck this option to also export normals for each frame. The resulting file will be twice as large.Export CancelCloseDownloading data... --- Monster Mash Help×Quick StartFollow these three steps to quickly become familiar with the basic usage of Monster Mash. See the rest of the page for more details.1Draw a character2Inflate it and move it around3Animate itExample GalleryClick/tap on an example below to open it.Give us FeedbackWe have created a user forum for dissussions about Monster Mash which is available at forum.monstermash.zone. You can use it to share your results with us or to let us know what you think about the tool. The forum code is .What's NewAugust 28, 2022Added an option to create a layer from a mask image, which also opens up the possibility to create layers with holes. Learn more…October 29, 2021Added an option to move layers in depth. Learn more…April 30, 2021A new user forum for discussion about Monster Mash is available at forum.monstermash.zone. From now on, please use this forum instead of the older CGSociety thread.March 9, 2021The entire textured animation can be exported to the glTF format, which allows importing the results into various 3D modeling software (tested in Blender). Read more…December 15, 2020Added a link to a discussion thread about Monster Mash.December 2, 2020The current animation frame can be exported to the Wavefront .obj file also with a material .mtl and texture .png files. Read more…Detailed Information1. Getting StartedMonster Mash is a new sketch-based modeling and animation tool that allows you to quickly sketch a character, inflate it into 3D, and promptly animate it. You can perform all interactions in the sketching plane. No 3D manipulation is required.This demo accompanies a paper Dvorožňák et al.: Monster Mash: A Single-View Approach to Casual 3D Modeling and Animation published in ACM Transactions on Graphics 39(6):214 and presented at SIGGRAPH Asia 2020 conference. The source code for this demo is available under the Apache-2.0 license. The demo is free to use for evaluation and research purposes.1.1. RequirementsMonster Mash demo should work on any platform in a recent browser that supports WebAssembly & WebGL 1.0. The device should also have sufficient computational resources. If the Monster Mash demo is crashing on your device, please check if you have installed the latest version of the operating system and your favorite web browser.Although the Monster Mash demo should also work on recent more powerful phones, it is preferable to use it on a tablet with a larger screen. The current user interface is not optimized for small screens.Monster Mash demo can be controlled using a mouse, touch, or stylus. For the best experience, we recommend using a stylus on a tablet.2. Creation ModesThe tool offers three basic modes of creation: Draw, Inflate, and Animate.2.1. Draw ModeIn the 1Draw mode, you can sketch a character part by part using strokes that delineate boundaries of individual regions. The order in which you create the regions corresponds to their relative order in depth. Each region's boundary is represented by a single stroke (opened or closed) that you can create using a click/tap-move-release sequence (using the left mouse button or a stylus/touch). Closed strokes delineate regions that represent the character's main body. Opened strokes are used for regions that are smoothly attached to other regions (e.g., limbs). The gap in the stroke is automatically closed by a line that outlines a junction along which the newly drawn region is smoothly connected to another region.In addition to drawing strokes, you can click/tap anywhere inside the region to select it or double-click/tap to make its duplicate and place it behind already drawn regions. Selected regions can be deleted using the button in the menu. You can also select multiple regions by clicking/tapping and dragging a selection rectangle over them, or select/deselect them all in the sub-menu.Now, let's try to create a simple monster. We start by scribbling the main body; then we add limbs and eyes. As we need limbs to be attached to the main body, we draw an open curve, and the system automatically connects it. To create limbs and eyes on both sides of the main body, we duplicate them using a double-click/tap.Draw mode2.2. Inflate ModeThe 2Inflate mode is useful for a quick preview of the resulting 3D model. You can rotate (middle mouse button) or pan (with shift pressed). If you are using a stylus/touch or you do not have a middle mouse button, you need to switch on the button in the main menu and use click/tap-move-release to rotate (left mouse button). When the button is off, you can play with the model by clicking/tapping on its parts and moving them around.2.3. Animation ModeAfter clicking/tapping on 3Animate button in the menu the model can be animated by placing control pins on it and moving them around. Tap or click using left mouse button to create a control pin and drag it to make it move. Control pins can be selected by clicking/tapping on them and deleted using the button in the menu. You can also select multiple control pins by clicking/tapping and dragging a selection rectangle over them. Alternatively, you can select/deselect all control pins or change their visibility in the sub-menu where you can also use option Copy selected animation and Paste animation to transfer already recorded motion to other control pins.Animation mode: Placing control pinsThe position of multiple control pins can be recorded in time and played back to create more complex animation. To activate the recording, press the button (it will turn red). Then by tapping or clicking on a control pin, the recording starts and stops when the mouse button, touch, or stylus is released. The animation can be paused and played back again by pressing the and button.Animation mode: Recording position of control pinsThe system uses a simple strategy the synchronize the motion with other pins. The first pin motion you record will define the length of the entire animation cycle. A pin that corresponds to this master motion is marked with green color, and its position in the first frame is denoted as a bold black dot laying on its recorded motion trajectory. The system automatically starts the motion of a new recorded control pin at a frame that corresponds to the currently played frame of the master pin. You can shift this relative position in time using plus and minus keys on the keyboard.2.4. Redraw ModeThe 1Draw button has a special Redraw option, which you can use to alter the shape of existing regions by re-sketching them without modifying their relative depth order. To do that, you can select a region that you want to change and redraw it. Note that it is necessary to redraw the entire shape of the modified region.Redraw mode3. Create/Open/Save/Export ProjectMonster Mash demo starts with a new empty project. You can always get back to this initial state by clicking/tapping on the button in the main menu. You can also open an existing project from your local hard-drive using the button or load some of the examples visible on this help page. When you create an animated 3D model, you can save it onto your local hard-drive using the button.Optionally, you can upload a template image (using button's option Import template image…) over which you can then trace. This template image will also be used as a texture of the final 3D model. Alternatively, you can also upload a background image (using button's option Import background image…) which will replace the default white background. You can show/hide the template image as well as your custom background by checking/unchecking their visibility in the sub-menu or alternatively switch on/off the shading effect using Enable shading option. Note that the supplied images will be scaled to fit the canvas if they have a resolution other than 1000x800. If you don't want any scaling, please stick to the specified resolution.If you would like to use an external image editor to prepare layers for Monster Mash, you can use Create layer from mask… in the button's sub-menu. This option expects the supplied image to either have an alpha channel, of which fully transparent parts are treated as background, or in case alpha channel is missing, black color is supposed to denote background. You can load multiple layers this way, which are stacked on top of each other. You can then move layers as needed using hot keys. Note that the supplied image will be scaled to fit the canvas if it has a resolution other than 1000x800. If you don't want any scaling, please stick to the specified resolution.When you already draw a shape in the Monster Mash demo which you would like to texture, use button's option Export a template image…. This option allows you to save an image of the current shape on your hard-drive over which you can then draw using your favorite drawing/painting tool and then upload it back using the button's option Import template image….Export to OBJ file. The current animation frame can be exported to the Wavefront .obj file by selecting Export the current animation frame as .obj file… from the sub-menu of the save button . If a template image is mapped to the mesh and Show template image option in the sub-menu is checked, a material .mtl file with a .png texture image is also exported.Export animation to glTF. The entire textured animation can be exported to the glTF format (.glb file), which allows importing the results into various 3D modeling software (tested in Blender). To access this feature, switch to the 3Animate mode and select Export animation as glTF (.glb file)… from the sub-menu of the save button . The export first generates the file in the memory which may cause Monster Mash to crash if the animation being exported is too large. Therefore, make sure to save the project before exporting it. The exported file may be directly imported into a recent version of Blender. After importing the file, make sure to turn on the texture projection in the Viewport Shading menu in Blender. Individual animation frames are exported as Morph Targets, which are converted to Shape Keys in Blender. Note that the resulting animation is vertex-based, i.e. keyframed animation of individual vertices of a mesh (opposed to the traditional skeleton-based animation).4. Other SettingsIn the sub-menu, there is also an Other settings option where you can enable/disable experimental armpit stitching algorithm and normal smoothing of the resulting 3D mesh.5. Mouse buttons Draw Mode:Click-and-move: Draw a boundary of a main body part or a part that lies in front of already drawn parts.Single click: Select an existing part that is closest to the mouse pointer and lies closest in depth.Shift + Single click: Add an existing part to the current selection or remove it from the current selection.Double click: Duplicate an existing part and move it in depth to lay behind the other drawn parts.Inflation Mode:Click-and-move: Move a part of the model that is closest to the mouse pointer and lies closest in depth.Animation Mode:Click: (a) Create a new control pin so that it is closest to the mouse pointer and lies on a part that is closest in depth or (b) select already existing control pin that is closest to the mouse pointer and lies closest in depth.Shift + Click: Add an existing control pin to the current selection or remove it from the current selection.Click-and-move: Create and animate a new control pin or just animate closest pin. Inflation & Animation Mode:Click-and-move: Rotate (or pan with Shift pressed) the 3D model. Right mouse button performs the same actions as the left mouse button with these exceptions:It draws behind already drawn parts.It selects a part that lies farthest in depth.It creates a new control pin so that it lies on a part that is farthest in depth or selects a control pin that lies farthest in depth.It duplicates an existing part and moves it in depth to lay in front of the other drawn parts.6. Hot-keysN Start a new project.Ctrl + O Open an existing project.Ctrl + S Save a current project.1 Switch to Draw Mode.2 Switch to Inflate Mode.3 Switch to Animate Mode.E Switch animation recording mode on/off. The actual recording of pin position will start after clicking/tapping on a pin and stop after releasing.Space Play/Pause animation.H Switch display of control pins on/off.Ctrl + C Copy a selected animation.Ctrl + V Paste animation to all selected control pins.Ctrl + A Select all parts or control pins.Esc Deselect all parts or control pins.Delete or Backspace Remove selected part or control pin.+ Offset control pin animation forward in time.− Offset control pin animation backward in time.PgUp Move selected layers one step closer in depth.PgDn Move selected layers one step further in depth.Home Move selected layers closest in depth.End Move selected layers furthest in depth.Older Versions21102903492103192337Monster Mash v. CloseSettings×Armpits stitching (experimental): EnableNormal smoothing: EnableCloseExport to glTF×Warning: The export first generates the file in the memory which may cause Monster Mash to crash if the animation being exported is too large. Therefore, make sure to save the project before exporting it.Animation length: framesPre-roll frames:Number of frames to precompute before exporting the sequence. Useful for obtaining animation loops without glitches.Full quality: EnableCheck this box to resolve the depth during the export. Uncheck for faster exports, which may, however, include interpenetrations.Per-frame normals: EnableCheck this option to also export normals for each frame. The resulting file will be twice as large.Export CancelCloseDownloading data... --- Monster Mash Help×Quick StartFollow these three steps to quickly become familiar with the basic usage of Monster Mash. See the rest of the page for more details.1Draw a character2Inflate it and move it around3Animate itExample GalleryClick/tap on an example below to open it.Give us FeedbackWe have created a user forum for dissussions about Monster Mash which is available at forum.monstermash.zone. You can use it to share your results with us or to let us know what you think about the tool. The forum code is .What's NewOctober 29, 2021Added an option to move layers in depth. Learn more…April 30, 2021A new user forum for discussion about Monster Mash is available at forum.monstermash.zone. From now on, please use this forum instead of the older CGSociety thread.March 9, 2021The entire textured animation can be exported to the glTF format, which allows importing the results into various 3D modeling software (tested in Blender). Read more…December 15, 2020Added a link to a discussion thread about Monster Mash.December 2, 2020The current animation frame can be exported to the Wavefront .obj file also with a material .mtl and texture .png files. Read more…Detailed Information1. Getting StartedMonster Mash is a new sketch-based modeling and animation tool that allows you to quickly sketch a character, inflate it into 3D, and promptly animate it. You can perform all interactions in the sketching plane. No 3D manipulation is required.This demo accompanies a paper Dvorožňák et al.: Monster Mash: A Single-View Approach to Casual 3D Modeling and Animation published in ACM Transactions on Graphics 39(6):214 and presented at SIGGRAPH Asia 2020 conference. The source code for this demo is available under the Apache-2.0 license. The demo is free to use for evaluation and research purposes.1.1. RequirementsMonster Mash demo should work on any platform in a recent browser that supports WebAssembly & WebGL 1.0. The device should also have sufficient computational resources. If the Monster Mash demo is crashing on your device, please check if you have installed the latest version of the operating system and your favorite web browser.Although the Monster Mash demo should also work on recent more powerful phones, it is preferable to use it on a tablet with a larger screen. The current user interface is not optimized for small screens.Monster Mash demo can be controlled using a mouse, touch, or stylus. For the best experience, we recommend using a stylus on a tablet.2. Creation ModesThe tool offers three basic modes of creation: Draw, Inflate, and Animate.2.1. Draw ModeIn the 1Draw mode, you can sketch a character part by part using strokes that delineate boundaries of individual regions. The order in which you create the regions corresponds to their relative order in depth. Each region's boundary is represented by a single stroke (opened or closed) that you can create using a click/tap-move-release sequence (using the left mouse button or a stylus/touch). Closed strokes delineate regions that represent the character's main body. Opened strokes are used for regions that are smoothly attached to other regions (e.g., limbs). The gap in the stroke is automatically closed by a line that outlines a junction along which the newly drawn region is smoothly connected to another region.In addition to drawing strokes, you can click/tap anywhere inside the region to select it or double-click/tap to make its duplicate and place it behind already drawn regions. Selected regions can be deleted using the button in the menu. You can also select multiple regions by clicking/tapping and dragging a selection rectangle over them, or select/deselect them all in the sub-menu.Now, let's try to create a simple monster. We start by scribbling the main body; then we add limbs and eyes. As we need limbs to be attached to the main body, we draw an open curve, and the system automatically connects it. To create limbs and eyes on both sides of the main body, we duplicate them using a double-click/tap.Draw mode2.2. Inflate ModeThe 2Inflate mode is useful for a quick preview of the resulting 3D model. You can rotate (middle mouse button) or pan (with shift pressed). If you are using a stylus/touch or you do not have a middle mouse button, you need to switch on the button in the main menu and use click/tap-move-release to rotate (left mouse button). When the button is off, you can play with the model by clicking/tapping on its parts and moving them around.2.3. Animation ModeAfter clicking/tapping on 3Animate button in the menu the model can be animated by placing control pins on it and moving them around. Tap or click using left mouse button to create a control pin and drag it to make it move. Control pins can be selected by clicking/tapping on them and deleted using the button in the menu. You can also select multiple control pins by clicking/tapping and dragging a selection rectangle over them. Alternatively, you can select/deselect all control pins or change their visibility in the sub-menu where you can also use option Copy selected animation and Paste animation to transfer already recorded motion to other control pins.Animation mode: Placing control pinsThe position of multiple control pins can be recorded in time and played back to create more complex animation. To activate the recording, press the button (it will turn red). Then by tapping or clicking on a control pin, the recording starts and stops when the mouse button, touch, or stylus is released. The animation can be paused and played back again by pressing the and button.Animation mode: Recording position of control pinsThe system uses a simple strategy the synchronize the motion with other pins. The first pin motion you record will define the length of the entire animation cycle. A pin that corresponds to this master motion is marked with green color, and its position in the first frame is denoted as a bold black dot laying on its recorded motion trajectory. The system automatically starts the motion of a new recorded control pin at a frame that corresponds to the currently played frame of the master pin. You can shift this relative position in time using plus and minus keys on the keyboard.2.4. Redraw ModeThe 1Draw button has a special Redraw option, which you can use to alter the shape of existing regions by re-sketching them without modifying their relative depth order. To do that, you can select a region that you want to change and redraw it. Note that it is necessary to redraw the entire shape of the modified region.Redraw mode3. Create/Open/Save/Export ProjectMonster Mash demo starts with a new empty project. You can always get back to this initial state by clicking/tapping on the button in the main menu. You can also open an existing project from your local hard-drive using the button or load some of the examples visible on this help page. When you create an animated 3D model, you can save it onto your local hard-drive using the button.Optionally, you can upload a template image (using button's option Import template image…) over which you can then trace. This template image will also be used as a texture of the final 3D model. Alternatively, you can also upload a background image (using button's option Import background image…) which will replace the default white background. You can show/hide the template image as well as your custom background by checking/unchecking their visibility in the sub-menu or alternatively switch on/off the shading effect using Enable shading option.When you already draw a shape in the Monster Mash demo which you would like to texture, use button's option Export a template image…. This option allows you to save an image of the current shape on your hard-drive over which you can then draw using your favorite drawing/painting tool and then upload it back using the button's option Import template image….Export to OBJ file. The current animation frame can be exported to the Wavefront .obj file by selecting Export the current animation frame as .obj file… from the sub-menu of the save button . If a template image is mapped to the mesh and Show template image option in the sub-menu is checked, a material .mtl file with a .png texture image is also exported.Export animation to glTF. The entire textured animation can be exported to the glTF format (.glb file), which allows importing the results into various 3D modeling software (tested in Blender). To access this feature, switch to the 3Animate mode and select Export animation as glTF (.glb file)… from the sub-menu of the save button . The export first generates the file in the memory which may cause Monster Mash to crash if the animation being exported is too large. Therefore, make sure to save the project before exporting it. The exported file may be directly imported into a recent version of Blender. After importing the file, make sure to turn on the texture projection in the Viewport Shading menu in Blender. Individual animation frames are exported as Morph Targets, which are converted to Shape Keys in Blender. Note that the resulting animation is vertex-based, i.e. keyframed animation of individual vertices of a mesh (opposed to the traditional skeleton-based animation).4. Other SettingsIn the sub-menu, there is also an Other settings option where you can enable/disable experimental armpit stitching algorithm and normal smoothing of the resulting 3D mesh.5. Mouse buttons Draw Mode:Click-and-move: Draw a boundary of a main body part or a part that lies in front of already drawn parts.Single click: Select an existing part that is closest to the mouse pointer and lies closest in depth.Shift + Single click: Add an existing part to the current selection or remove it from the current selection.Double click: Duplicate an existing part and move it in depth to lay behind the other drawn parts.Inflation Mode:Click-and-move: Move a part of the model that is closest to the mouse pointer and lies closest in depth.Animation Mode:Click: (a) Create a new control pin so that it is closest to the mouse pointer and lies on a part that is closest in depth or (b) select already existing control pin that is closest to the mouse pointer and lies closest in depth.Shift + Click: Add an existing control pin to the current selection or remove it from the current selection.Click-and-move: Create and animate a new control pin or just animate closest pin. Inflation & Animation Mode:Click-and-move: Rotate (or pan with Shift pressed) the 3D model. Right mouse button performs the same actions as the left mouse button with these exceptions:It draws behind already drawn parts.It selects a part that lies farthest in depth.It creates a new control pin so that it lies on a part that is farthest in depth or selects a control pin that lies farthest in depth.It duplicates an existing part and moves it in depth to lay in front of the other drawn parts.6. Hot-keysN Start a new project.Ctrl + O Open an existing project.Ctrl + S Save a current project.1 Switch to Draw Mode.2 Switch to Inflate Mode.3 Switch to Animate Mode.E Switch animation recording mode on/off. The actual recording of pin position will start after clicking/tapping on a pin and stop after releasing.Space Play/Pause animation.H Switch display of control pins on/off.Ctrl + C Copy a selected animation.Ctrl + V Paste animation to all selected control pins.Ctrl + A Select all parts or control pins.Esc Deselect all parts or control pins.Delete or Backspace Remove selected part or control pin.+ Offset control pin animation forward in time.− Offset control pin animation backward in time.PgUp Move selected layers one step closer in depth.PgDn Move selected layers one step further in depth.Home Move selected layers closest in depth.End Move selected layers furthest in depth.Older Versions2103192337Monster Mash v. 211029CloseSettings×Armpits stitching (experimental): EnableNormal smoothing: EnableCloseExport to glTF×Warning: The export first generates the file in the memory which may cause Monster Mash to crash if the animation being exported is too large. Therefore, make sure to save the project before exporting it.Animation length: framesPre-roll frames:Number of frames to precompute before exporting the sequence. Useful for obtaining animation loops without glitches.Full quality: EnableCheck this box to resolve the depth during the export. Uncheck for faster exports, which may, however, include interpenetrations.Per-frame normals: EnableCheck this option to also export normals for each frame. The resulting file will be twice as large.Export CancelClose Find out how to use Monster Mash, and see what's new
