}
}
+#define MAX_PARTICLETEXTURES 64
+// particletexture_t is a rectangle in the particlefonttexture
+typedef struct
+{
+ float s1, t1, s2, t2;
+}
+particletexture_t;
+
static rtexturepool_t *particletexturepool;
static rtexture_t *particlefonttexture;
-// [0] is normal, [1] is fog, they may be the same
-static particletexture_t particletexture[MAX_PARTICLETEXTURES][2];
+static particletexture_t particletexture[MAX_PARTICLETEXTURES];
static cvar_t r_drawparticles = {0, "r_drawparticles", "1"};
static cvar_t r_particles_lighting = {0, "r_particles_lighting", "0"};
return 0;
}
-static void setuptex(int cltexnum, int fog, int rtexnum, qbyte *data, qbyte *particletexturedata)
+static void setuptex(int cltexnum, int rtexnum, qbyte *data, qbyte *particletexturedata)
{
int basex, basey, y;
basex = ((rtexnum >> 0) & 7) * 32;
basey = ((rtexnum >> 3) & 7) * 32;
- particletexture[cltexnum][fog].s1 = (basex + 1) / 256.0f;
- particletexture[cltexnum][fog].t1 = (basey + 1) / 256.0f;
- particletexture[cltexnum][fog].s2 = (basex + 31) / 256.0f;
- particletexture[cltexnum][fog].t2 = (basey + 31) / 256.0f;
+ particletexture[cltexnum].s1 = (basex + 1) / 256.0f;
+ particletexture[cltexnum].t1 = (basey + 1) / 256.0f;
+ particletexture[cltexnum].s2 = (basex + 31) / 256.0f;
+ particletexture[cltexnum].t2 = (basey + 31) / 256.0f;
for (y = 0;y < 32;y++)
memcpy(particletexturedata + ((basey + y) * 256 + basex) * 4, data + y * 32 * 4, 32 * 4);
}
}
while (m < 224);
- setuptex(i + 0, 0, i + 0, &data[0][0][0], particletexturedata);
- setuptex(i + 0, 1, i + 0, &data[0][0][0], particletexturedata);
+ setuptex(i + 0, i + 0, &data[0][0][0], particletexturedata);
}
// rain splash
data[y][x][3] = (int) f;
}
}
- setuptex(i + 8, 0, i + 16, &data[0][0][0], particletexturedata);
- setuptex(i + 8, 1, i + 16, &data[0][0][0], particletexturedata);
+ setuptex(i + 8, i + 16, &data[0][0][0], particletexturedata);
}
// normal particle
data[y][x][3] = (qbyte) d;
}
}
- setuptex(24, 0, 32, &data[0][0][0], particletexturedata);
- setuptex(24, 1, 32, &data[0][0][0], particletexturedata);
+ setuptex(24, 32, &data[0][0][0], particletexturedata);
// rain
light[0] = 1;light[1] = 1;light[2] = 1;
data[y][x][3] = shadebubble((x - 16) * (1.0 / 8.0), y < 24 ? (y - 24) * (1.0 / 24.0) : (y - 24) * (1.0 / 8.0), light);
}
}
- setuptex(25, 0, 33, &data[0][0][0], particletexturedata);
- setuptex(25, 1, 33, &data[0][0][0], particletexturedata);
+ setuptex(25, 33, &data[0][0][0], particletexturedata);
// bubble
light[0] = 1;light[1] = 1;light[2] = 1;
data[y][x][3] = shadebubble((x - 16) * (1.0 / 16.0), (y - 16) * (1.0 / 16.0), light);
}
}
- setuptex(26, 0, 34, &data[0][0][0], particletexturedata);
- setuptex(26, 1, 34, &data[0][0][0], particletexturedata);
+ setuptex(26, 34, &data[0][0][0], particletexturedata);
particlefonttexture = R_LoadTexture (particletexturepool, "particlefont", 256, 256, particletexturedata, TEXTYPE_RGBA, TEXF_ALPHA | TEXF_PRECACHE);
}
void R_DrawParticles (void)
{
int i, lighting, dynlight, additive, texnum, orientation;
- float minparticledist, org[3], uprightangles[3], up2[3], right2[3], v[3], right[3], up[3], tvxyz[4][4], tvst[4][2], fog, ifog, fogvec[3];
+ float minparticledist, org[3], uprightangles[3], up2[3], right2[3], v[3], right[3], up[3], fog, ifog, fogvec[3], cr, cg, cb, ca;
mleaf_t *leaf;
- particletexture_t *tex, *texfog;
- rmeshinfo_t m;
+ particletexture_t *tex;
+ rmeshbufferinfo_t m;
particle_t *p;
// LordHavoc: early out conditions
minparticledist = DotProduct(r_origin, vpn) + 16.0f;
- // LordHavoc: this meshinfo must match up with R_Mesh_DrawDecal
- // LordHavoc: the commented out lines are hardwired behavior in R_Mesh_DrawDecal
- memset(&m, 0, sizeof(m));
- m.transparent = true;
- m.blendfunc1 = GL_SRC_ALPHA;
- m.blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
- m.numtriangles = 2;
- m.index = partindexarray;
- m.numverts = 4;
- m.vertex = &tvxyz[0][0];
- m.vertexstep = sizeof(float[4]);
- m.tex[0] = R_GetTexture(particlefonttexture);
- m.texcoords[0] = &tvst[0][0];
- m.texcoordstep[0] = sizeof(float[2]);
-
for (i = 0, p = particles;i < cl_numparticles;i++, p++)
{
// LordHavoc: only render if not too close
else
Host_Error("R_DrawParticles: unknown particle orientation %i\n", orientation);
- m.cr = p->color[0] * (1.0f / 255.0f);
- m.cg = p->color[1] * (1.0f / 255.0f);
- m.cb = p->color[2] * (1.0f / 255.0f);
- m.ca = p->alpha * (1.0f / 255.0f);
+ tex = &particletexture[texnum];
+
+ cr = p->color[0] * (1.0f / 255.0f);
+ cg = p->color[1] * (1.0f / 255.0f);
+ cb = p->color[2] * (1.0f / 255.0f);
+ ca = p->alpha * (1.0f / 255.0f);
if (lighting >= 1 && (dynlight || lighting >= 2))
{
R_CompleteLightPoint(v, org, true, leaf);
- m.cr *= v[0];
- m.cg *= v[1];
- m.cb *= v[2];
+ cr *= v[0];
+ cg *= v[1];
+ cb *= v[2];
}
- tex = &particletexture[texnum][0];
-
- tvxyz[0][0] = org[0] - right[0] - up[0];
- tvxyz[0][1] = org[1] - right[1] - up[1];
- tvxyz[0][2] = org[2] - right[2] - up[2];
- tvxyz[1][0] = org[0] - right[0] + up[0];
- tvxyz[1][1] = org[1] - right[1] + up[1];
- tvxyz[1][2] = org[2] - right[2] + up[2];
- tvxyz[2][0] = org[0] + right[0] + up[0];
- tvxyz[2][1] = org[1] + right[1] + up[1];
- tvxyz[2][2] = org[2] + right[2] + up[2];
- tvxyz[3][0] = org[0] + right[0] - up[0];
- tvxyz[3][1] = org[1] + right[1] - up[1];
- tvxyz[3][2] = org[2] + right[2] - up[2];
- tvst[0][0] = tex->s1;
- tvst[0][1] = tex->t1;
- tvst[1][0] = tex->s1;
- tvst[1][1] = tex->t2;
- tvst[2][0] = tex->s2;
- tvst[2][1] = tex->t2;
- tvst[3][0] = tex->s2;
- tvst[3][1] = tex->t1;
-
- if (additive)
+ if (fogenabled)
{
- m.blendfunc2 = GL_ONE;
- fog = 0;
- if (fogenabled)
+ VectorSubtract(org, r_origin, fogvec);
+ fog = exp(fogdensity/DotProduct(fogvec,fogvec));
+ ifog = 1 - fog;
+ cr = cr * ifog;
+ cg = cg * ifog;
+ cb = cb * ifog;
+ if (!additive)
{
- texfog = &particletexture[texnum][1];
- VectorSubtract(org, r_origin, fogvec);
- ifog = 1 - exp(fogdensity/DotProduct(fogvec,fogvec));
- if (ifog < (1.0f - (1.0f / 64.0f)))
- {
- if (ifog >= (1.0f / 64.0f))
- {
- // partially fogged, darken it
- m.cr *= ifog;
- m.cg *= ifog;
- m.cb *= ifog;
- R_Mesh_Draw(&m);
- }
- }
- else
- R_Mesh_Draw(&m);
+ cr += fogcolor[0] * fog;
+ cg += fogcolor[1] * fog;
+ cb += fogcolor[2] * fog;
}
- else
- R_Mesh_Draw(&m);
}
+
+ memset(&m, 0, sizeof(m));
+ m.transparent = true;
+ m.blendfunc1 = GL_SRC_ALPHA;
+ if (additive)
+ m.blendfunc2 = GL_ONE;
else
- {
m.blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
- fog = 0;
- if (fogenabled)
- {
- texfog = &particletexture[texnum][1];
- VectorSubtract(org, r_origin, fogvec);
- fog = exp(fogdensity/DotProduct(fogvec,fogvec));
- if (fog >= (1.0f / 64.0f))
- {
- if (fog >= (1.0f - (1.0f / 64.0f)))
- {
- // fully fogged, just use the fog texture and render as alpha
- m.cr = fogcolor[0];
- m.cg = fogcolor[1];
- m.cb = fogcolor[2];
- tvst[0][0] = texfog->s1;
- tvst[0][1] = texfog->t1;
- tvst[1][0] = texfog->s1;
- tvst[1][1] = texfog->t2;
- tvst[2][0] = texfog->s2;
- tvst[2][1] = texfog->t2;
- tvst[3][0] = texfog->s2;
- tvst[3][1] = texfog->t1;
- R_Mesh_Draw(&m);
- }
- else
- {
- // partially fogged, darken the first pass
- ifog = 1 - fog;
- m.cr *= ifog;
- m.cg *= ifog;
- m.cb *= ifog;
- if (tex->s1 == texfog->s1 && tex->t1 == texfog->t1)
- {
- // fog texture is the same as the base, just change the color
- m.cr += fogcolor[0] * fog;
- m.cg += fogcolor[1] * fog;
- m.cb += fogcolor[2] * fog;
- R_Mesh_Draw(&m);
- }
- else
- {
- // render the first pass (alpha), then do additive fog
- R_Mesh_Draw(&m);
-
- m.blendfunc2 = GL_ONE;
- m.cr = fogcolor[0] * fog;
- m.cg = fogcolor[1] * fog;
- m.cb = fogcolor[2] * fog;
- tvst[0][0] = texfog->s1;
- tvst[0][1] = texfog->t1;
- tvst[1][0] = texfog->s1;
- tvst[1][1] = texfog->t2;
- tvst[2][0] = texfog->s2;
- tvst[2][1] = texfog->t2;
- tvst[3][0] = texfog->s2;
- tvst[3][1] = texfog->t1;
- R_Mesh_Draw(&m);
- }
- }
- }
- else
- R_Mesh_Draw(&m);
- }
- else
- R_Mesh_Draw(&m);
+ m.numtriangles = 2;
+ m.numverts = 4;
+ m.tex[0] = R_GetTexture(particlefonttexture);
+ if (R_Mesh_Draw_GetBuffer(&m))
+ {
+ m.index[0] = 0;
+ m.index[1] = 1;
+ m.index[2] = 2;
+ m.index[3] = 0;
+ m.index[4] = 2;
+ m.index[5] = 3;
+ m.vertex[0] = org[0] - right[0] - up[0];
+ m.vertex[1] = org[1] - right[1] - up[1];
+ m.vertex[2] = org[2] - right[2] - up[2];
+ m.vertex[4] = org[0] - right[0] + up[0];
+ m.vertex[5] = org[1] - right[1] + up[1];
+ m.vertex[6] = org[2] - right[2] + up[2];
+ m.vertex[8] = org[0] + right[0] + up[0];
+ m.vertex[9] = org[1] + right[1] + up[1];
+ m.vertex[10] = org[2] + right[2] + up[2];
+ m.vertex[12] = org[0] + right[0] - up[0];
+ m.vertex[13] = org[1] + right[1] - up[1];
+ m.vertex[14] = org[2] + right[2] - up[2];
+ m.texcoords[0][0] = tex->s1;
+ m.texcoords[0][1] = tex->t1;
+ m.texcoords[0][2] = tex->s1;
+ m.texcoords[0][3] = tex->t2;
+ m.texcoords[0][4] = tex->s2;
+ m.texcoords[0][5] = tex->t2;
+ m.texcoords[0][6] = tex->s2;
+ m.texcoords[0][7] = tex->t1;
+ m.color[0] = m.color[4] = m.color[8] = m.color[12] = cr * m.colorscale;
+ m.color[1] = m.color[5] = m.color[9] = m.color[13] = cg * m.colorscale;
+ m.color[2] = m.color[6] = m.color[10] = m.color[14] = cb * m.colorscale;
+ m.color[3] = m.color[7] = m.color[11] = m.color[15] = ca;
}
}
}
projects / xonotic / darkplaces.git / blobdiff