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trying a more interesting lighting system on alias models... What do you think? 

git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@169 fc73d0e0-1445-4013-8a0c-d673dee63da5
This commit is contained in:
Spoike 2004-09-07 23:09:15 +00:00
parent ef7540eb41
commit 74a28bc472
1 changed files with 94 additions and 15 deletions
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109
engine/gl/gl_alias.c
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@ -250,6 +250,75 @@ static void R_LerpFrames(mesh_t *mesh, galiaspose_t *p1, galiaspose_t *p2, float
}
}
static void R_GAliasAddDlights(mesh_t *mesh, vec3_t org, vec3_t angles)
{
int l, v;
vec3_t rel;
vec3_t dir;
vec3_t axis[3];
float dot, d, a, f;
AngleVectors(angles, axis[0], axis[1], axis[2]);
for (l=0 ; l<MAX_DLIGHTS ; l++)
{
if (cl_dlights[l].die >= cl.time)
{
VectorSubtract (cl_dlights[l].origin,
org,
dir);
if (Length(dir)>cl_dlights[l].radius+mesh->radius) //far out man!
continue;
rel[0] = -DotProduct(dir, axis[0]);
rel[1] = DotProduct(dir, axis[1]); //quake's crazy.
rel[2] = -DotProduct(dir, axis[2]);
/*
glBegin(GL_LINES);
glVertex3f(0,0,0);
glVertex3f(rel[0],rel[1],rel[2]);
glEnd();
*/
for (v = 0; v < mesh->numvertexes; v++)
{
VectorSubtract(mesh->xyz_array[v], rel, dir);
dot = DotProduct(dir, mesh->normals_array[v]);
if (dot>0)
{
d = DotProduct(dir, dir);
a = 1/d;
if (a>0)
{
a *= 10000000*dot/sqrt(d);
f = mesh->colors_array[v][0] + a*cl_dlights[l].color[0];
if (f > 255)
f = 255;
else if (f < 0)
f = 0;
mesh->colors_array[v][0] = f;
f = mesh->colors_array[v][1] + a*cl_dlights[l].color[1];
if (f > 255)
f = 255;
else if (f < 0)
f = 0;
mesh->colors_array[v][1] = f;
f = mesh->colors_array[v][2] + a*cl_dlights[l].color[2];
if (f > 255)
f = 255;
else if (f < 0)
f = 0;
mesh->colors_array[v][2] = f;
}
// else
// mesh->colors_array[v][1] =255;
}
// else
// mesh->colors_array[v][2] =255;
}
}
}
}
static void R_GAliasBuildMesh(mesh_t *mesh, galiasinfo_t *inf, int frame1, int frame2, float lerp, float alpha)
{
galiasgroup_t *g1, *g2;
@ -703,6 +772,8 @@ void R_DrawGAliasModel (entity_t *e)
float entScale;
vec3_t lightdir;
int pervertexdlights = 1;
float tmatrix[3][4];
if (e->flags & Q2RF_VIEWERMODEL && e->keynum == cl.playernum[r_refdef.currentplayernum]+1)
@ -727,27 +798,33 @@ void R_DrawGAliasModel (entity_t *e)
lightdir[2] = 1;
}
for (i=0 ; i<MAX_DLIGHTS ; i++)
if (!pervertexdlights)
{
if (cl_dlights[i].die >= cl.time)
for (i=0 ; i<MAX_DLIGHTS ; i++)
{
VectorSubtract (e->origin,
cl_dlights[i].origin,
dist);
add = cl_dlights[i].radius - Length(dist);
if (cl_dlights[i].die >= cl.time)
{
VectorSubtract (e->origin,
cl_dlights[i].origin,
dist);
add = cl_dlights[i].radius - Length(dist);
if (add > 0) {
add*=5;
ambientlight[0] += add * cl_dlights[i].color[0];
ambientlight[1] += add * cl_dlights[i].color[1];
ambientlight[2] += add * cl_dlights[i].color[2];
//ZOID models should be affected by dlights as well
shadelight[0] += add * cl_dlights[i].color[0];
shadelight[1] += add * cl_dlights[i].color[1];
shadelight[2] += add * cl_dlights[i].color[2];
if (add > 0) {
add*=5;
ambientlight[0] += add * cl_dlights[i].color[0];
ambientlight[1] += add * cl_dlights[i].color[1];
ambientlight[2] += add * cl_dlights[i].color[2];
//ZOID models should be affected by dlights as well
shadelight[0] += add * cl_dlights[i].color[0];
shadelight[1] += add * cl_dlights[i].color[1];
shadelight[2] += add * cl_dlights[i].color[2];
}
}
}
}
else
{
}
for (i = 0; i < 3; i++) //clamp light so it doesn't get vulgar.
{
@ -990,6 +1067,8 @@ void R_DrawGAliasModel (entity_t *e)
while(inf)
{
R_GAliasBuildMesh(&mesh, inf, e->frame, e->oldframe, e->lerptime, e->alpha);
if (pervertexdlights)
R_GAliasAddDlights(&mesh, e->origin, e->angles);
skin = GL_ChooseSkin(inf, clmodel->name, e);
c_alias_polys += mesh.numindexes/3;
if (!skin)