How to apply a glowing texture?

Codea Craft
41

@piinthesky darrrrrrrrrrrrrrn.

It works for the figure models but it doesn’t work for the others.

See attached project.

42

@UberGoober, those models have multiple materials, so you have to loop over them all.

-- bloom effect2
viewer.mode=STANDARD

function setup()
    bloomScale=5
    
    tab={}
    scene = craft.scene()
    scene.sun.rotation=quat.eulerAngles(30,45,30)
    v=scene.camera:add(OrbitViewer, vec3(0,0,0), 200, 0, 1000)
    v.ry=180
    
    cameraComponent = scene.camera:get(craft.camera)
    cameraComponent.hdr = true
    cameraComponent.colorTextureEnabled = true
    
    bloom = craft.bloomEffect()
    cameraComponent:addPostEffect(bloom)
    
    bloom.threshold = 2
    bloom.intensity = 0.65
    bloom.softThreshold = 0.2
    bloom.iterations = 8
    
    models = {asset.builtin.Blocky_Characters.Robot, asset.builtin.Blocky_Characters.WomanAlternative, asset.builtin.Watercraft.watercraftPack_005_obj, asset.builtin.CastleKit.siegeBallista_obj, asset.builtin.Watercraft.watercraftPack_007_obj,asset.builtin.SpaceKit.spaceCraft3_obj}
    
    for i=1,6 do
        local ground = scene:entity()
 --       ground.model= craft.model(models[math.random(#models)])
        ground.model= craft.model(models[i])
        x=math.random(-50,50)
        y=math.random(-50,50)
        z=math.random(-50,50)
        ground.position = vec3(x,y,z)
        table.insert(tab,{gr=ground,x=x,y=y,z=z,r=0,a=false})
    end
    parameter.integer("pos",1,#tab,position)
    parameter.integer("Rotate",-180,180,0,rotate)
    parameter.boolean("int",false,intensity)

end

function update(dt)
    scene:update(dt)
end

function rotate()
    tab[pos].r=Rotate
end

function draw()
    update(DeltaTime)
    tab[pos].gr.eulerAngles = vec3(0,tab[pos].r, 0)
    scene:draw()
end

function position()
    Rotate=tab[pos].r
    int=tab[pos].a
end

function intensity()
        thisModel=tab[pos].gr
        nMat=thisModel.model.submeshCount
--        print(nMat)
        for i=0,nMat-1 do 
            thisMat=thisModel.model:getMaterial(i)
 --           print(thisMat.diffuse)
            if int then 
                thisMat.diffuse=thisMat.diffuse*bloomScale
            else
                thisMat.diffuse=thisMat.diffuse/bloomScale
            end
        end
        tab[pos].a=int
end
43

@piinthesky I made a zip of your project, and gave it a nice icon, in case anyone wants to get it that way.

Personally I like having icons, because otherwise I quickly end up with tons of little green squares that I can’t remember the purpose of.

I also fixed the bug where the first entity had their skin made darker, which required abstracting your process into a stand-alone function, which was good to do anyway because it makes it easier to use for anyone who wants to cut and paste it.

I also gave some of the variables verbose names, partly to help other coders grasp the code quicker, partly because that’s just me. :smiley:

[edit: project wasn’t working, but should work now]