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https://github.com/tomankirilov/VPainter

A vertex painting addon for the Godot game engine.
https://github.com/tomankirilov/VPainter

Last synced: 4 months ago
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A vertex painting addon for the Godot game engine.

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README 

        

 # **THE BRANCH FOR 4.X is STILL A WORK IN PROGRESS AND NOT WORKING!!!**

![](images/logo.png)

# A vertex painting addon for the Godot game engine.



[![](images/Thumbnail.png)](https://youtu.be/g87ov35zvjE)

 

  

![](images/preview.gif)

  

# **DOWNLOAD AND INSTALL:**  

Download the addon from https://github.com/tomankirilov/VPainter.

Copy the addons folder in your project directory.  

In **Project/Project Settings/Plugins** set VPainter to Active.

  

  

![](images/activate.gif)



 

# **CHANGE LOG:**

**v0.2**: 

* Added support for pressure sensitive pen tablets.

* Some small bug fixes.

 

 

# **USING THE PLUGIN:**  



![](images/show_hide.gif)  

In the 3d editor when a MeshInstance node with a valid mesh resource is selected an icon will appear in the top editor menu.  

When clicked a new sidebar will appear with painting options.



# **TOOLS:**  

![](images/01.gif)   

**brush tool** : (Shortcut - "1") use to paint vertex colors. You can adjust the size with the sliders or by using "[" and "]"  

**picker tool**: (Shortcut - "2") use to pick the vertex color under the mouse cursor when clicked.  

**blur tool**  : (shortcut - "3") in progress  

**fill tool**  : (shortcut - "4") use to fill the entire mesh with a color. Fill tool is affected by the opacity and blend mode.    



**color swatches**: There are two color swatches. in the main panel. When clicked they reveal a color picker dialog. The last one clicked is the active one.  



**pressure sensitivity**: There is a new option for pressure sensitive pen tablets.

* **SizePressure** - the size of your brush depends on the pressure input.

* **OpacityPressure** - the opacity of your brush depends on the pressure input.



**blending modes**: There are currently 5 blending modes supported:  

 * **MIX**: linearly interpolated between the colors.  

 * **ADD**: adds the colors.  

 * **SUBTRACT**: subtracts the colors.  

 * **MULTIPLY**: multiplies the colors.  

 * **DIVIDE**: divides the colors.  



**size**: controls the size of the brush and blur tool.  

**opacity**: controls the opacity of the brush and fill tool.  

**hardness**: controls the hardness of the brush and blur tool.  

**spacing** : controls the spacing between the brush "dabs". Lower spacing results in a more precise line.



**make local copy** : makes a local copy of the mesh. It is useful if you don't want to overwrite your original mesh data.  



# **LIMITATIONS:**

* Currently Vpainter does not support godot's primitive meshes. It only works with imported meshes.  

* Currently only RGB painting is supported. Alpha channel painting is in the works.

* Currently Vpainter does not support meshes with multiple instances of floating geometry.



# **ADDITIONAL RESOURCES:**  

In **VPainter/addons/vpainter/additional_resources/** you will find two shaders:  

* **shader_vertex_color.shader**:  

A simple shader that displays the vertex color. It has the possibility to isolate R, G and B channels so you can preview them individually.  

* **height_blend_4_textures.shader**:  

A shader used in the first presentation. It is used for mixing 4 textures based on a heightmap and vertex color.     

The shader uses 3 textures per material:  

	* **M**: A mask texture.  

		R channel contains the height information  

		G channel contains the rougness information  

		B channel contains the metal information.  

	* **C**: RGB color/albedo information.  

	* **N**: Normalmap information.  

# **SOURCES:**  

* The height blend shader was made after this amazing post:

http://untitledgam.es/2017/01/height-blending-shader/