fly/fgdata
1
0
Fork 0
Code Activity

New fog shader

Browse source 
Signed-off-by: Vivian Meazza <vivian.meazza@lineone.net>
This commit is contained in:
Vivian Meazza 2011-11-27 23:59:33 +00:00
parent f43a9e45e6
commit 1abc5624fb
2 changed files with 30 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

19
Shaders/include_fog.frag Normal file
View file

@ -0,0 +1,19 @@
//#define FOG_FUNCTION
//default fog
//varying float fogCoord;
varying vec3 PointPos;
//varying vec4 EyePos;
vec3 fog_Func(vec3 color, int type)
{
//if (type == 0){
const float LOG2 = 1.442695;
//vec3 EyePos = vec3(0.0);
float fogCoord =length(PointPos);
float fogFactor = exp2(-gl_Fog.density * gl_Fog.density * fogCoord * fogCoord * LOG2);
if(gl_Fog.density == 1.0)
fogFactor=1.0;
return mix(gl_Fog.color.rgb, color, fogFactor);
}

11
Shaders/include_fog.vert Normal file
View file

@ -0,0 +1,11 @@
//varying float fogCoord;
varying vec3 PointPos;
//varying vec4 EyePos;
void fog_func(int type)
{
PointPos = (gl_ModelViewMatrix * gl_Vertex).xyz;
//PointPos = gl_Vertex;
//EyePos = gl_ModelViewMatrixInverse * vec4(0.0,0.0,0.0,1.0);
//fogCoord = abs(ecPosition.z);
}