surfacelight issue

[Guest KENNITHH]

Hey, I'm back at my old map as people asked me to finish it.

 

So I'm at the part of adding lights where I use q3map_surfacelight for a nice lightbar effect but theres something bugging me , in the center you can see theres a little sphere of light. Is there a way to fix this ?

 

 

 

Also when looking from a distance, it draws the surface through walls a bit (hard to see sometimes - top left)

Shader & GTK

 

 

 

textures/ziba/lightstrip01

{

q3map_lightimage textures/colors/white

qer_editorimage textures/colors/white

q3map_material Glass

q3map_surfacelight 2000

polygonOffset

    {

        map $lightmap

    }

    {

        map textures/colors/white

        blendFunc GL_DST_COLOR GL_ZERO

    }

    {

        map textures/colors/white

        blendFunc GL_ONE GL_ONE

    }

}

[mrwonko]

If you want to write shaders, you probably need to learn about blend functions. That shader has 2 more stages than it needs.

 

I'm kind of surprised that there is any light coming off that surface besides the single sphere of light - based on how I understand q3map_lightSubdivide those evenly spaced point lights are the only source of light for surface lights, and their default spacing is one every 120 units. But I never experimented much with them, so I can't tell for sure.

[Guest KENNITHH]

I learn better if I see how other people do stuff then try stuff myself rather then theories . So I've looked up some maps you made and Szico aswell and I've found out that q3map_backSplash 0 0 fixes that center light but I don't get the 2 more stages needed, is it for the line showing through walls or do you mean I can remove the stages cause theres a lightimage in there?

 

 

I'm currently trying the sort param aswell because when I stand on a light, they start z-fighting

[mrwonko]

No, I'm saying that if you only want a white shader, you don't need three stages; you just need a single one, e.g.

{
  map $whiteimage //or textures/colors/white, if you prefer
  blendFunc GL_ONE GL_ZERO
}

together with q3map_nolightmap. Possibly add a glow stage. Your shader visually looks the same, but takes 3x as long to display.

 

This is just a simplification; it should not help with your issue.

[Guest KENNITHH]

No, I'm saying that if you only want a white shader, you don't need three stages; you just need a single one, e.g.

{
  map $whiteimage //or textures/colors/white, if you prefer
  blendFunc GL_ONE GL_ZERO
}

 .

 

 

When I use this, the texture doesnt show, now the reason why it showed it through walls seemed to be cause it was a patch mesh and had polygonoffset, changed it to a normal brush and its gone , so basicly this thread is solved !

Thanks mrwonko

 

 

 

Thanks mrwonko and AshuraDX !

 

Solution: Use brush instead of patchmesh

 

 

 

textures/ziba/lightstrip01

{

q3map_lightimage textures/colors/white

qer_editorimage textures/colors/white

q3map_material Glass

q3map_surfacelight 2000

q3map_backSplash 0 0 //fixes the circle light

q3map_nolightmap

sort decal

    {

map textures/colors/white

blendFunc GL_ONE GL_ZERO

rgbGen identity //makes the white texture ALLWAYS fullbright

    }

}

 

[AshuraDX]

you should try this :

textures/ziba/lightstrip01
{
q3map_lightimage textures/colors/white
qer_editorimage textures/colors/white
q3map_material Glass
q3map_surfacelight  2000
q3map_backSplash 0 0 //fixes the circle light
q3map_nolightmap
sort decal
    {
        map textures/colors/white 
        blendFunc GL_ONE GL_ZERO
        rgbGen identity //makes the white texture ALLWAYS fullbright
        glow
    }
}

[Guest KENNITHH]

That works aswell DashuraDX, thanks for that. Eventhough glow doesnt work in SoF2 but I never mentioned it was for SoF2 anyway.

But it might be usefull in the future because I will release the source so people can see how I made it and perhaps learn from it, but they are allowed to re-release it on their game aswell.