gl.Unit / gl.UnitRaw question

[Niobium]

I've been trying to use these functions to draw exact copies of units, however the best I can get is a non-textured version. Is there some simple step I am missing / some way to texture them with right texture? Or is this the best that can be done?

[Argh]

gl.Texture(1,"%unitDefID:0") --texture 1
gl.Texture(2,"%unitDefID:1") --texture 2

Send both to your shader and process. To get exact copies of the Units, you probably need to look up jK's shader framework (which I am working on more when I am not so busy) which has a S3O GLSL shader that behaves exactly like the ARB shader.

[Niobium]

gl.Texture(1,"%unitDefID:0") --texture 1
gl.Texture(2,"%unitDefID:1") --texture 2

Send both to your shader and process. To get exact copies of the Units, you probably need to look up jK's shader framework (which I am working on more when I am not so busy) which has a S3O GLSL shader that behaves exactly like the ARB shader.

Unfortunately I don't know anything about shaders. Im not after anything fancy like shadows/reflection/lighting/alpha/etc, just a textured model of the unit is all I need, so is there any shortcut/simple way to get just that?

[Argh]

Oh, well... if you don't need lighting or anything, then this should get you close.

Code: Select all

Spring.UnitRendering.SetUnitLuaDraw(unitID,true)
gl.DepthTest(GL.LEQUAL)
gl.Texture(1,"%unitDefID:0")
gl.Color(1.0,1.0,1.0,1.0)
gl.Unit(unitID,true)

...just be prepared, it will not look all that cool.

[Niobium]

It seems Spring.UnitRendering is nil for me?

But then I am not trying to change the drawing of the unit, I'm trying to draw a copy of it, so I don't know if that function would help anyway. Thanks anyway.

In the meantime I've solved my problem with something different but more than adequate; Drawing the unit with polygonmode fill and some solid color, then polygonmode line with color black. Sure doesn't have any of the details, but the unit is still easily recognizable.

[zwzsg]

Code: Select all

-- Draw an armstump, with the color of team team, at the position x,y,z
-- This use an unitDef, not an unit,
-- so on one hand it doesn't copy the exact poses of all the pieces of a live unit,
-- but on the other you don't need any live instance of that unit type.

	gl.Translate(x,y,z)
	gl.UnitShape(UnitDefNames.armstump.id,team)
	gl.Translate(-x,-y,-z)

Code: Select all

-- Draw a copy of a live unit (untested)

local function DrawUnitCopy(unitID,x,y,z)
		gl.PushMatrix()
		local ux,uy,uz=Spring.GetUnitPosition(unitID)
		gl.Translate(x-ux,y-uy,z-uz) -- There's also gl.Scale if you want to draw bigger/smaller
		gl.Blending(GL.ONE_MINUS_SRC_COLOR,GL.ONE) -- That was to make it look holographic, remove if you want it solid
		gl.Unit(unitID)
		gl.Blending(GL.SRC_ALPHA,GL.ONE_MINUS_SRC_ALPHA)
		gl.PopMatrix()
end