void r_lightningbeams_setupqmbtexture(void)
{
- r_lightningbeamqmbtexture = loadtextureimage(r_lightningbeamtexturepool, "textures/particles/lightning.pcx", 0, 0, false, TEXF_ALPHA | TEXF_PRECACHE);
+ r_lightningbeamqmbtexture = loadtextureimage(r_lightningbeamtexturepool, "textures/particles/lightning.pcx", false, TEXF_ALPHA | TEXF_PRECACHE, false);
if (r_lightningbeamqmbtexture == NULL)
Cvar_SetValueQuick(&r_lightningbeam_qmbtexture, false);
}
for (imagenumber = 0, maxpathstrength = 0.0339476;maxpathstrength < 0.5;imagenumber++, maxpathstrength += 0.01)
{
- for (i = 0;i < PATHPOINTS;i++)
- {
- path[i].x = lhrandom(0, 1);
- path[i].y = lhrandom(0.2, 0.8);
- path[i].strength = lhrandom(0, 1);
- }
- for (i = 0;i < PATHPOINTS;i++)
- {
- for (j = i + 1;j < PATHPOINTS;j++)
+ for (i = 0;i < PATHPOINTS;i++)
+ {
+ path[i].x = lhrandom(0, 1);
+ path[i].y = lhrandom(0.2, 0.8);
+ path[i].strength = lhrandom(0, 1);
+ }
+ for (i = 0;i < PATHPOINTS;i++)
{
- if (path[j].x < path[i].x)
+ for (j = i + 1;j < PATHPOINTS;j++)
{
- temppath = path[j];
- path[j] = path[i];
- path[i] = temppath;
+ if (path[j].x < path[i].x)
+ {
+ temppath = path[j];
+ path[j] = path[i];
+ path[i] = temppath;
+ }
}
}
- }
- particlex = path[0].x;
- particley = path[0].y;
- particlexv = lhrandom(0, 0.02);
- particlexv = lhrandom(-0.02, 0.02);
- memset(image, 0, BEAMWIDTH * BEAMHEIGHT * sizeof(int));
- for (i = 0;i < 65536;i++)
- {
- for (nearestpathindex = 0;nearestpathindex < PATHPOINTS;nearestpathindex++)
- if (path[nearestpathindex].x > particlex)
- break;
- nearestpathindex %= PATHPOINTS;
- dx = path[nearestpathindex].x + lhrandom(-0.01, 0.01);dx = bound(0, dx, 1) - particlex;if (dx < 0) dx += 1;
- dy = path[nearestpathindex].y + lhrandom(-0.01, 0.01);dy = bound(0, dy, 1) - particley;
- s = path[nearestpathindex].strength / sqrt(dx*dx+dy*dy);
- particlexv = particlexv /* (1 - lhrandom(0.08, 0.12))*/ + dx * s;
- particleyv = particleyv /* (1 - lhrandom(0.08, 0.12))*/ + dy * s;
- particlex += particlexv * maxpathstrength;particlex -= (int) particlex;
- particley += particleyv * maxpathstrength;particley = bound(0, particley, 1);
- px = particlex * BEAMWIDTH;
- py = particley * BEAMHEIGHT;
- if (px >= 0 && py >= 0 && px < BEAMWIDTH && py < BEAMHEIGHT)
- image[py*BEAMWIDTH+px] += 16;
- }
-
- for (py = 0;py < BEAMHEIGHT;py++)
- {
- for (px = 0;px < BEAMWIDTH;px++)
+ particlex = path[0].x;
+ particley = path[0].y;
+ particlexv = lhrandom(0, 0.02);
+ particlexv = lhrandom(-0.02, 0.02);
+ memset(image, 0, BEAMWIDTH * BEAMHEIGHT * sizeof(int));
+ for (i = 0;i < 65536;i++)
{
- pixels[(py*BEAMWIDTH+px)*4+0] = bound(0, image[py*BEAMWIDTH+px] * 1.0f, 255.0f);
- pixels[(py*BEAMWIDTH+px)*4+1] = bound(0, image[py*BEAMWIDTH+px] * 1.0f, 255.0f);
- pixels[(py*BEAMWIDTH+px)*4+2] = bound(0, image[py*BEAMWIDTH+px] * 1.0f, 255.0f);
- pixels[(py*BEAMWIDTH+px)*4+3] = 255;
+ for (nearestpathindex = 0;nearestpathindex < PATHPOINTS;nearestpathindex++)
+ if (path[nearestpathindex].x > particlex)
+ break;
+ nearestpathindex %= PATHPOINTS;
+ dx = path[nearestpathindex].x + lhrandom(-0.01, 0.01);dx = bound(0, dx, 1) - particlex;if (dx < 0) dx += 1;
+ dy = path[nearestpathindex].y + lhrandom(-0.01, 0.01);dy = bound(0, dy, 1) - particley;
+ s = path[nearestpathindex].strength / sqrt(dx*dx+dy*dy);
+ particlexv = particlexv /* (1 - lhrandom(0.08, 0.12))*/ + dx * s;
+ particleyv = particleyv /* (1 - lhrandom(0.08, 0.12))*/ + dy * s;
+ particlex += particlexv * maxpathstrength;particlex -= (int) particlex;
+ particley += particleyv * maxpathstrength;particley = bound(0, particley, 1);
+ px = particlex * BEAMWIDTH;
+ py = particley * BEAMHEIGHT;
+ if (px >= 0 && py >= 0 && px < BEAMWIDTH && py < BEAMHEIGHT)
+ image[py*BEAMWIDTH+px] += 16;
}
+
+ for (py = 0;py < BEAMHEIGHT;py++)
+ {
+ for (px = 0;px < BEAMWIDTH;px++)
+ {
+ pixels[(py*BEAMWIDTH+px)*4+2] = bound(0, image[py*BEAMWIDTH+px] * 1.0f, 255.0f);
+ pixels[(py*BEAMWIDTH+px)*4+1] = bound(0, image[py*BEAMWIDTH+px] * 1.0f, 255.0f);
+ pixels[(py*BEAMWIDTH+px)*4+0] = bound(0, image[py*BEAMWIDTH+px] * 1.0f, 255.0f);
+ pixels[(py*BEAMWIDTH+px)*4+3] = 255;
+ }
+ }
+
+ Image_WriteTGABGRA(va("lightningbeam%i.tga", imagenumber), BEAMWIDTH, BEAMHEIGHT, pixels);
}
- Image_WriteTGARGBA(va("lightningbeam%i.tga", imagenumber), BEAMWIDTH, BEAMHEIGHT, pixels);
- }
-
- r_lightningbeamtexture = R_LoadTexture2D(r_lightningbeamtexturepool, "lightningbeam", BEAMWIDTH, BEAMHEIGHT, pixels, TEXTYPE_RGBA, TEXF_PRECACHE, NULL);
+ r_lightningbeamtexture = R_LoadTexture2D(r_lightningbeamtexturepool, "lightningbeam", BEAMWIDTH, BEAMHEIGHT, pixels, TEXTYPE_BGRA, TEXF_PRECACHE, NULL);
Mem_Free(pixels);
Mem_Free(image);
r = intensity * 1.0f;
g = intensity * 1.0f;
b = intensity * 1.0f;
- data[(y * BEAMWIDTH + x) * 4 + 0] = (unsigned char)(bound(0, r, 1) * 255.0f);
+ data[(y * BEAMWIDTH + x) * 4 + 2] = (unsigned char)(bound(0, r, 1) * 255.0f);
data[(y * BEAMWIDTH + x) * 4 + 1] = (unsigned char)(bound(0, g, 1) * 255.0f);
- data[(y * BEAMWIDTH + x) * 4 + 2] = (unsigned char)(bound(0, b, 1) * 255.0f);
+ data[(y * BEAMWIDTH + x) * 4 + 0] = (unsigned char)(bound(0, b, 1) * 255.0f);
data[(y * BEAMWIDTH + x) * 4 + 3] = (unsigned char)255;
}
}
- r_lightningbeamtexture = R_LoadTexture2D(r_lightningbeamtexturepool, "lightningbeam", BEAMWIDTH, BEAMHEIGHT, data, TEXTYPE_RGBA, TEXF_PRECACHE, NULL);
+ r_lightningbeamtexture = R_LoadTexture2D(r_lightningbeamtexturepool, "lightningbeam", BEAMWIDTH, BEAMHEIGHT, data, TEXTYPE_BGRA, TEXF_PRECACHE, NULL);
Mem_Free(noise1);
Mem_Free(noise2);
Mem_Free(data);
void R_FogLightningBeam_Vertex3f_Color4f(const float *v, float *c, int numverts, float r, float g, float b, float a)
{
int i;
- float ifog;
+ float fog;
for (i = 0;i < numverts;i++, v += 3, c += 4)
{
- ifog = 1 - VERTEXFOGTABLE(VectorDistance(v, r_view.origin));
- c[0] = r * ifog;
- c[1] = g * ifog;
- c[2] = b * ifog;
+ fog = FogPoint_World(v);
+ c[0] = r * fog;
+ c[1] = g * fog;
+ c[2] = b * fog;
c[3] = a;
}
}
R_Mesh_Matrix(&identitymatrix);
GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
GL_DepthMask(false);
+ GL_DepthRange(0, 1);
+ GL_PolygonOffset(r_refdef.polygonfactor, r_refdef.polygonoffset);
GL_DepthTest(true);
if (r_lightningbeam_qmbtexture.integer && r_lightningbeamqmbtexture == NULL)
r_lightningbeams_setupqmbtexture();
if (!r_lightningbeam_qmbtexture.integer && r_lightningbeamtexture == NULL)
r_lightningbeams_setuptexture();
- R_Mesh_VertexPointer(vertex3f);
+ R_Mesh_VertexPointer(vertex3f, 0, 0);
+ // FIXME: fixed function path can't properly handle r_view.colorscale > 1
if (r_refdef.fogenabled)
{
// per vertex colors if fog is used
- R_Mesh_ColorPointer(color4f);
- R_FogLightningBeam_Vertex3f_Color4f(vertex3f, color4f, 12, r_lightningbeam_color_red.value, r_lightningbeam_color_green.value, r_lightningbeam_color_blue.value, 1);
+ R_Mesh_ColorPointer(color4f, 0, 0);
}
else
{
// solid color if fog is not used
- R_Mesh_ColorPointer(NULL);
- GL_Color(r_lightningbeam_color_red.value, r_lightningbeam_color_green.value, r_lightningbeam_color_blue.value, 1);
+ R_Mesh_ColorPointer(NULL, 0, 0);
+ GL_Color(r_lightningbeam_color_red.value * r_view.colorscale, r_lightningbeam_color_green.value * r_view.colorscale, r_lightningbeam_color_blue.value * r_view.colorscale, 1);
}
memset(&m, 0, sizeof(m));
if (r_lightningbeam_qmbtexture.integer)
for (surfacelistindex = 0;surfacelistindex < numsurfaces;surfacelistindex++)
{
const beam_t *b = cl.beams + surfacelist[surfacelistindex];
- vec3_t beamdir, right, up, offset;
+ vec3_t beamdir, right, up, offset, start, end;
float length, t1, t2;
+ CL_Beam_CalculatePositions(b, start, end);
+
// calculate beam direction (beamdir) vector and beam length
// get difference vector
- VectorSubtract(b->end, b->start, beamdir);
+ VectorSubtract(end, start, beamdir);
// find length of difference vector
length = sqrt(DotProduct(beamdir, beamdir));
// calculate scale to make beamdir a unit vector (normalized)
// calculate up vector such that it points toward viewer, and rotates around the beamdir
// get direction from start of beam to viewer
- VectorSubtract(r_view.origin, b->start, up);
+ VectorSubtract(r_view.origin, start, up);
// remove the portion of the vector that moves along the beam
// (this leaves only a vector pointing directly away from the beam)
t1 = -DotProduct(up, beamdir);
VectorNormalize(up);
// calculate T coordinate scrolling (start and end texcoord along the beam)
- t1 = r_refdef.time * -r_lightningbeam_scroll.value;// + beamrepeatscale * DotProduct(b->start, beamdir);
+ t1 = r_refdef.time * -r_lightningbeam_scroll.value;// + beamrepeatscale * DotProduct(start, beamdir);
t1 = t1 - (int) t1;
t2 = t1 + beamrepeatscale * length;
// polygon 1, verts 0-3
VectorScale(right, r_lightningbeam_thickness.value, offset);
- R_CalcLightningBeamPolygonVertex3f(vertex3f + 0, b->start, b->end, offset);
+ R_CalcLightningBeamPolygonVertex3f(vertex3f + 0, start, end, offset);
// polygon 2, verts 4-7
VectorAdd(right, up, offset);
VectorScale(offset, r_lightningbeam_thickness.value * 0.70710681f, offset);
- R_CalcLightningBeamPolygonVertex3f(vertex3f + 12, b->start, b->end, offset);
+ R_CalcLightningBeamPolygonVertex3f(vertex3f + 12, start, end, offset);
// polygon 3, verts 8-11
VectorSubtract(right, up, offset);
VectorScale(offset, r_lightningbeam_thickness.value * 0.70710681f, offset);
- R_CalcLightningBeamPolygonVertex3f(vertex3f + 24, b->start, b->end, offset);
+ R_CalcLightningBeamPolygonVertex3f(vertex3f + 24, start, end, offset);
R_CalcLightningBeamPolygonTexCoord2f(texcoord2f + 0, t1, t2);
R_CalcLightningBeamPolygonTexCoord2f(texcoord2f + 8, t1 + 0.33, t2 + 0.33);
R_CalcLightningBeamPolygonTexCoord2f(texcoord2f + 16, t1 + 0.66, t2 + 0.66);
// draw the 3 polygons as one batch of 6 triangles using the 12 vertices
GL_LockArrays(0, 12);
- R_Mesh_Draw(0, 12, 6, r_lightningbeamelements);
+ R_Mesh_Draw(0, 12, 6, r_lightningbeamelements, 0, 0);
GL_LockArrays(0, 0);
}
}
+extern cvar_t cl_beams_polygons;
void R_DrawLightningBeams(void)
{
int i;
beam_t *b;
- vec3_t org;
if (!cl_beams_polygons.integer)
return;
beamrepeatscale = 1.0f / r_lightningbeam_repeatdistance.value;
for (i = 0, b = cl.beams;i < cl.num_beams;i++, b++)
{
- if (b->model && b->endtime >= r_refdef.time && b->lightning)
+ if (b->model && b->lightning)
{
- VectorAdd(b->start, b->end, org);
- VectorScale(org, 0.5f, org);
+ vec3_t org, start, end, dir;
+ vec_t dist;
+ CL_Beam_CalculatePositions(b, start, end);
+ // calculate the nearest point on the line (beam) for depth sorting
+ VectorSubtract(end, start, dir);
+ dist = (DotProduct(r_view.origin, dir) - DotProduct(start, dir)) / (DotProduct(end, dir) - DotProduct(start, dir));
+ dist = bound(0, dist, 1);
+ VectorLerp(start, dist, end, org);
+ // now we have the nearest point on the line, so sort with it
R_MeshQueue_AddTransparent(org, R_DrawLightningBeam_TransparentCallback, NULL, i, NULL);
}
}