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Preliminary Volumetric fog :)

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fixed problem where r_fog, r_waterwarp were not defined for quakeworld.
This commit is contained in:
Eric Windisch 2000-01-02 03:12:59 +00:00
parent abf1fae788
commit 2bfc08ccde
3 changed files with 31 additions and 8 deletions
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35
common/gl_rmain.c
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@ -91,7 +91,7 @@ cvar_t r_netgraph = {"r_netgraph","0"};
// All the fog code was disabled for QuakeWold
// _reduced_ visability shouldn't be considered cheating :)
cvar_t r_fog = {"r_fog", "0"};
cvar_t r_volfog = {"r_volfog", "0"};
cvar_t gl_finish = {"gl_finish","0"};
cvar_t gl_clear = {"gl_clear","0"};
@ -1199,18 +1199,37 @@ Eric Windisch: I basicly rewrote what carmack had here to
display _much_ prettier. small hack
*/
if(r_fog.value) {
if(r_fog.value)
{
// The volume fog probally will not work yet :)
if(r_volfog.value)
{
glEnable(GL_STENCIL_TEST);
glStencilFunc(GL_ALWAYS, 1, 1);
glStencilOp(GL_KEEP, GL_ZERO, GL_REPLACE);
R_DrawWaterSurfaces();
glStencilFunc(GL_EQUAL, 1, 1);
glStencilMask(GL_FALSE);
glDisable(GL_DEPTH_TEST);
}
// fixme: would be nice if the user could select what fogmode... (r_fog_mode)
glFogi (GL_FOG_MODE, GL_EXP2);
glFogfv (GL_FOG_COLOR, colors);
glFogi (GL_FOG_MODE, GL_EXP2);
glFogfv (GL_FOG_COLOR, colors);
// fixme: GL_FOG_DENSITY should have r_fog_density var
glFogf (GL_FOG_DENSITY, .0005);
glEnable(GL_FOG);
}
glFogf (GL_FOG_DENSITY, .0005);
glEnable(GL_FOG);
}
R_RenderScene ();
R_DrawViewModel ();
if((!r_fog.value)||(!r_volfog.value))
{
R_DrawWaterSurfaces ();
}
// More fog right here :)
glDisable(GL_FOG);

3
qw_client/glquake.h
View file

@ -216,6 +216,9 @@ extern cvar_t r_wateralpha;
extern cvar_t r_dynamic;
extern cvar_t r_novis;
extern cvar_t r_netgraph;
extern cvar_t r_fog;
extern cvar_t r_waterwarp;
extern cvar_t r_volfog;
extern cvar_t gl_clear;
extern cvar_t gl_cull;

1
uquake/glquake.h
View file

@ -210,6 +210,7 @@ extern cvar_t r_dynamic;
extern cvar_t r_novis;
extern cvar_t r_fog;
extern cvar_t r_waterwarp;
extern cvar_t r_volfog;
extern cvar_t gl_clear;
extern cvar_t gl_cull;