Transparent water

[RedSnappa]

I have water that appears transparent in Radiant but is opaque in-game. How do I make it transparent in-game?

[Delirium]

Whats the shader your using?

[ValkoVer]

first thing, shader work actually? (ie it "behave" like water in game ). If yes You need to add different blendfunc.

this is and shader from urt:

Code: Select all

textures/urban_terror2/water1
{
      qer_editorimage textures/liquids/pool3d_3e.tga
      qer_trans .5
      q3map_globaltexture
      surfaceparm trans
      surfaceparm nonsolid
      surfaceparm water
      cull disable
      deformVertexes wave 64 sin .25 .25 0 .5   
      { 
         map textures/liquids/pool3d_5e.tga
         blendFunc GL_dst_color GL_one
         rgbgen identity
         tcmod scale .5 .5
         tcmod scroll .025 .01
      }
      { 
         map textures/liquids/pool3d_3e.tga
         blendFunc GL_dst_color GL_one
         tcmod scale -.5 -.5
         tcmod scroll .025 .025
      }
      {
         map $lightmap
         blendFunc GL_dst_color GL_zero
         rgbgen identity      
}

   }

[RedSnappa]

Shader works. It is water, but it is not transparent.

Code: Select all

textures/greatwall/greatwall_water
{
   qer_editorimage textures/greatwall/greatwall_water.tga
   qer_trans 0.2
   surfaceparm alphashadow
   surfaceparm lightfilter
   surfaceparm nomarks
   surfaceparm nonsolid
   surfaceparm trans
   surfaceparm water
   cull disable

   {
      map textures/greatwall/greatwall_water.tga
      blendfunc GL_SRC_ALPHA GL_ONE_MINUS_SRC_ALPHA
      tcMod turb 0.0 0.1 1.0 0.1
      tcmod scroll 0.01 0.01
   }
   {
      map $lightmap
      blendfunc filter
   }
}

[Delirium]

Does the image your uding have an alpha channel?

Try using the blendfunc valkover posted

[RedSnappa]

No alpha channel that I'm aware of. I'll try that blendfunc.

[Delirium]

blendfunc GL_SRC_ALPHA GL_ONE_MINUS_SRC_ALPHA blends the alpha channel with white pixels being opaque and black being fully transparent. if no alpha channel is present. no blend

either add an alpha channel or experiment with different blends, you could also try my favourite
blendfunc blend
alphaGen const 0.2

[RedSnappa]

How do I add an alpha channel? I use GIMP 2.4 for all texturing I do.

[Delirium]

Google

[RedSnappa]

I got alpha channels to work but my water is still not transparent. I even tried to copy a working example (from ut4_edo_b1) and it still doesn't work. I'm out of ideas...