Mesh

Supported platforms: android, ios, mac, pc
Available since: Gideros 2012.09

Description

Mesh class is used to create and display custom constructed set of triangles (triangle meshes). It basically consists of
4 arrays: vertex, index, color (optional), textureCoordinate (optional) and a texture (optional) and it provides more than
one way to set/modify these arrays.

Mesh can be 2D or 3D, the latter expects an additionnal Z coordinate in its vertices. Additionnally, 3D meshes and their children are rendered with depth testing enabled, which prevents far objects to be drawn above nearest ones, irrespective of actual drawing order.

• Note 1: Mesh class doesn't do bounds check. If an element at index array points to an non-existent vertex, the application may crash.

Examples

Mesh usage

local mesh = Mesh.new()
stage:addChild(mesh)
-- 1. vertex (0, 0)
-- 2. vertex (100, 0)
-- 3. vertex (100, 150)
-- 4. vertex (0, 150)
mesh:setVertexArray(0, 0,   100, 0,   100, 150,   0, 150)

-- 1. triangle from 1, 2 and 3 vertex
-- 2. triangle from 1, 3 and 4 vertex
mesh:setIndexArray(1, 2, 3,     1, 3, 4)

-- 1. vertex 0xff0000 color with 0.5 alpha
-- 2. vertex 0x00ff00 color with 0.7 alpha
-- 3. vertex 0x0000ff color with 1 alpha
-- 4. vertex 0xffff00 color with 0 alpha
mesh:setColorArray(0xff0000, 0.5, 0x00ff00, 0.7, 0x0000ff, 1.0, 0xffff00, 0)

Methods Mesh.new {{}} Mesh:clearColorArray {{}} Mesh:clearIndexArray {{}} Mesh:clearTexture {{}} Mesh:clearTextureCoordinateArray {{}} Mesh:clearVertexArray {{}} Mesh:getColor Template:Returns color and alpha of the i-th element from color array Mesh:getColorArraySize Template:Get size of the Color array Mesh:getIndex Template:Returns the i-th element from index array Mesh:getIndexArraySize Template:Get size of the Index array Mesh:getTextureCoordinate Template:Returns u and v coordinate of the i-th element from texture coordinate array Mesh:getTextureCoordinateArraySize Template:Get size of the Texture Coordinate array Mesh:getVertex Template:Returns x and y coordinate of the i-th element from vertex array Mesh:getVertexArraySize Template:Get size of the Vertices array Mesh:resizeColorArray {{}} Mesh:resizeIndexArray {{}} Mesh:resizeTextureCoordinateArray {{}} Mesh:resizeVertexArray {{}} Mesh:setColor {{}} Mesh:setColorArray {{}} Mesh:setColors {{}} Mesh:setGenericArray {{}} Mesh:setIndex {{}} Mesh:setIndexArray {{}} Mesh:setIndices {{}} Mesh:setTexture {{}} Mesh:setTextureCoordinate {{}} Mesh:setTextureCoordinateArray {{}} Mesh:setTextureCoordinates {{}} Mesh:setVertex {{}} Mesh:setVertexArray {{}} Mesh:setVertices {{}}

Events Constants