This sample project demonstrates a module for mapping/indexing vertex colors from a mesh buffer for real-time manipulation in defold. Playing the project allows the user to change the colors of the mesh objects using the displayed gui options. Similar to something you may find in a game with gear customization mechanics. However this method can be used for many different visual effects and mechanics.
The main focus of this sample is the module color_mapping.lua contains functions that are used to map and re-color the mesh.
M.map_vertex_colors(mesh_url) |
Takes in mesh url. Maps indexes of all triangle faces and their vertex color values with matching colors |
M.color_on_mesh(mesh_url, mapped_id, color) |
Takes in mesh url, map id(mapped index), vector 4. Changes mesh mapped color to new color |
M.mesh_info(mesh_url) |
Takes in mesh url. Prints out data of mapped mesh |
M.remove_mesh(mesh_url) |
Takes in mesh url. Removes mesh data and buffer stored in module tables |
note: Vertex colors were applied to the sword and shield 3d models in blender and then exported using the CLEAN Asset Exporter extension.
Learn more about the Defold game engine. Visit the community forums at Defold Community.