vertex index?

Questions
1

i want to use mesh.vertex draw two vertex to a rect ,but i can’t seem like opengl have vertex index,how i do it? i don’t want to use draw rect. just vertex to do it. any sample? thanks!

2

Here’s a small example I have that uses vertices. Use the slider for 3 examples.

function setup()
    parameter.integer("value",1,3,1,set)
end

function draw()
    background(40, 40, 50)
    myMesh:draw()
end

function set()
    myMesh = mesh()
    myMesh.vertices = {vec2(0,0),vec2(100,0),vec2(0,100),
            vec2(0,100),vec2(100,100),vec2(100,0)}
    
    if value==1 then
        -- set color for whole mesh
        myMesh:setColors(255,0,0)
    elseif value==2 then
        -- set color for whole mesh
        myMesh:setColors(255,0,0)
        -- then set color for each of the 6 vertices
        myMesh:color(1,255,0,0)
        myMesh:color(2,255,0,0)
        myMesh:color(3,255,0,0)
        myMesh:color(4,0,255,0)
        myMesh:color(5,0,255,0)
        myMesh:color(6,0,255,0)
    elseif value==3 then
        -- get texture image
        img = readImage("Planet Cute:Icon")
        -- set texture image
        myMesh.texture = img --Set the image as texture
        -- set texture coordinates
        t={vec2(0,0),vec2(1,0),vec2(0,1),vec2(0,1),vec2(1,1),vec2(1,0)}
        myMesh.texCoords=t
    end            
end
3

Yo thank you. It work .thanks!! :smiley: