// r_light.c
#include "quakedef.h"
+#include "cl_collision.h"
+#include "r_shadow.h"
-cvar_t r_lightmodels = {0, "r_lightmodels", "1"};
+dlight_t r_dlight[MAX_DLIGHTS];
+int r_numdlights = 0;
+
+cvar_t r_modellights = {CVAR_SAVE, "r_modellights", "4"};
+cvar_t r_vismarklights = {0, "r_vismarklights", "1"};
+cvar_t r_coronas = {CVAR_SAVE, "r_coronas", "1"};
+cvar_t gl_flashblend = {CVAR_SAVE, "gl_flashblend", "0"};
+
+static rtexture_t *lightcorona;
+static rtexturepool_t *lighttexturepool;
void r_light_start(void)
{
+ float dx, dy;
+ int x, y, a;
+ qbyte pixels[32][32][4];
+ lighttexturepool = R_AllocTexturePool();
+ for (y = 0;y < 32;y++)
+ {
+ dy = (y - 15.5f) * (1.0f / 16.0f);
+ for (x = 0;x < 32;x++)
+ {
+ dx = (x - 15.5f) * (1.0f / 16.0f);
+ a = ((1.0f / (dx * dx + dy * dy + 0.2f)) - (1.0f / (1.0f + 0.2))) * 32.0f / (1.0f / (1.0f + 0.2));
+ a = bound(0, a, 255);
+ pixels[y][x][0] = a;
+ pixels[y][x][1] = a;
+ pixels[y][x][2] = a;
+ pixels[y][x][3] = 255;
+ }
+ }
+ lightcorona = R_LoadTexture2D(lighttexturepool, "lightcorona", 32, 32, &pixels[0][0][0], TEXTYPE_RGBA, TEXF_PRECACHE, NULL);
}
void r_light_shutdown(void)
{
+ lighttexturepool = NULL;
+ lightcorona = NULL;
}
void r_light_newmap(void)
{
+ int i;
+ for (i = 0;i < 256;i++)
+ d_lightstylevalue[i] = 264; // normal light value
}
void R_Light_Init(void)
{
- Cvar_RegisterVariable(&r_lightmodels);
+ Cvar_RegisterVariable(&r_modellights);
+ Cvar_RegisterVariable(&r_vismarklights);
+ Cvar_RegisterVariable(&r_coronas);
+ Cvar_RegisterVariable(&gl_flashblend);
R_RegisterModule("R_Light", r_light_start, r_light_shutdown, r_light_newmap);
}
/*
==================
-R_AnimateLight
+R_UpdateLights
==================
*/
-void R_AnimateLight (void)
+void R_UpdateLights(void)
{
- int i,j,k;
+ float frac;
+ int i, j, k, l;
-//
// light animations
// 'm' is normal light, 'a' is no light, 'z' is double bright
- i = (int)(cl.time*10);
- for (j=0 ; j<MAX_LIGHTSTYLES ; j++)
+ i = (int)(cl.time * 10);
+ frac = (cl.time * 10) - i;
+ for (j = 0;j < MAX_LIGHTSTYLES;j++)
{
- if (!cl_lightstyle[j].length)
+ if (!cl_lightstyle || !cl_lightstyle[j].length)
{
d_lightstylevalue[j] = 256;
continue;
}
k = i % cl_lightstyle[j].length;
+ l = (i-1) % cl_lightstyle[j].length;
k = cl_lightstyle[j].map[k] - 'a';
- k = k*22;
- d_lightstylevalue[j] = k;
- }
+ l = cl_lightstyle[j].map[l] - 'a';
+ d_lightstylevalue[j] = ((k*frac)+(l*(1-frac)))*22;
+ }
+
+ r_numdlights = 0;
+ c_dlights = 0;
+
+ if (!r_dynamic.integer || !cl_dlights)
+ return;
+
+ // TODO: optimize to not scan whole cl_dlights array if possible
+ for (i = 0;i < MAX_DLIGHTS;i++)
+ {
+ if (cl_dlights[i].radius > 0)
+ {
+ R_RTLight_UpdateFromDLight(&cl_dlights[i].rtlight, &cl_dlights[i], false);
+ // FIXME: use pointer instead of copy
+ r_dlight[r_numdlights++] = cl_dlights[i];
+ c_dlights++; // count every dlight in use
+ }
+ }
+}
+
+void R_DrawCoronas(void)
+{
+ int i, lnum, flag;
+ float cscale, scale, viewdist, dist;
+ dlight_t *light;
+ if (r_coronas.value < 0.01)
+ return;
+ R_Mesh_Matrix(&r_identitymatrix);
+ viewdist = DotProduct(r_vieworigin, r_viewforward);
+ flag = r_rtworld ? LIGHTFLAG_REALTIMEMODE : LIGHTFLAG_NORMALMODE;
+ for (lnum = 0, light = r_shadow_worldlightchain;light;light = light->next, lnum++)
+ {
+ if ((light->flags & flag) && light->corona * r_coronas.value > 0 && (r_shadow_debuglight.integer < 0 || r_shadow_debuglight.integer == lnum) && (dist = (DotProduct(light->rtlight.shadoworigin, r_viewforward) - viewdist)) >= 24.0f && CL_TraceLine(light->rtlight.shadoworigin, r_vieworigin, NULL, NULL, true, NULL, SUPERCONTENTS_SOLID) == 1)
+ {
+ cscale = light->rtlight.corona * r_coronas.value * 0.25f;
+ scale = light->rtlight.radius * light->rtlight.coronasizescale;
+ R_DrawSprite(GL_ONE, GL_ONE, lightcorona, true, light->rtlight.shadoworigin, r_viewright, r_viewup, scale, -scale, -scale, scale, light->rtlight.color[0] * cscale, light->rtlight.color[1] * cscale, light->rtlight.color[2] * cscale, 1);
+ }
+ }
+ for (i = 0, light = r_dlight;i < r_numdlights;i++, light++)
+ {
+ if ((light->flags & flag) && light->corona * r_coronas.value > 0 && (dist = (DotProduct(light->origin, r_viewforward) - viewdist)) >= 24.0f && CL_TraceLine(light->origin, r_vieworigin, NULL, NULL, true, NULL, SUPERCONTENTS_SOLID) == 1)
+ {
+ cscale = light->corona * r_coronas.value * 0.25f;
+ scale = light->rtlight.radius * light->rtlight.coronasizescale;
+ if (gl_flashblend.integer)
+ {
+ cscale *= 4.0f;
+ scale *= 2.0f;
+ }
+ R_DrawSprite(GL_ONE, GL_ONE, lightcorona, true, light->origin, r_viewright, r_viewup, scale, -scale, -scale, scale, light->color[0] * cscale, light->color[1] * cscale, light->color[2] * cscale, 1);
+ }
+ }
}
+#ifdef LHREMOVESOON
/*
=============================================================================
=============================================================================
*/
+static int lightpvsbytes;
+static qbyte lightpvs[(MAX_MAP_LEAFS+7)>>3];
+
/*
=============
R_MarkLights
=============
*/
-void R_OldMarkLights (vec3_t lightorigin, dlight_t *light, int bit, int bitindex, mnode_t *node)
+static void R_RecursiveMarkLights(entity_render_t *ent, vec3_t lightorigin, vec3_t lightmins, vec3_t lightmaxs, dlight_t *light, int bit, int bitindex, mnode_t *node, qbyte *pvs, int pvsbits)
{
- float ndist, maxdist;
- msurface_t *surf;
- mleaf_t *leaf;
- int i;
-
- if (!r_dynamic.value)
- return;
+ int i;
+ mleaf_t *leaf;
+ float dist;
// for comparisons to minimum acceptable light
- maxdist = light->radius * light->radius;
-
- // clamp radius to avoid exceeding 32768 entry division table
- if (maxdist > 4194304)
- maxdist = 4194304;
-
-loc0:
- if (node->contents < 0)
+ while(node->plane)
{
- if (node->contents != CONTENTS_SOLID)
+ dist = PlaneDiff(lightorigin, node->plane);
+ if (dist > light->rtlight.lightmap_cullradius)
+ node = node->children[0];
+ else
{
- leaf = (mleaf_t *)node;
- if (leaf->dlightframe != r_framecount) // not dynamic until now
- {
- leaf->dlightbits[0] = leaf->dlightbits[1] = leaf->dlightbits[2] = leaf->dlightbits[3] = leaf->dlightbits[4] = leaf->dlightbits[5] = leaf->dlightbits[6] = leaf->dlightbits[7] = 0;
- leaf->dlightframe = r_framecount;
- }
- leaf->dlightbits[bitindex] |= bit;
+ if (dist >= -light->rtlight.lightmap_cullradius)
+ R_RecursiveMarkLights(ent, lightorigin, lightmins, lightmaxs, light, bit, bitindex, node->children[0], pvs, pvsbits);
+ node = node->children[1];
}
- return;
- }
-
- ndist = PlaneDiff(lightorigin, node->plane);
-
- if (ndist > light->radius)
- {
- node = node->children[0];
- goto loc0;
- }
- if (ndist < -light->radius)
- {
- node = node->children[1];
- goto loc0;
}
-// mark the polygons
- surf = cl.worldmodel->surfaces + node->firstsurface;
- for (i=0 ; i<node->numsurfaces ; i++, surf++)
+ // check if leaf is visible according to pvs
+ leaf = (mleaf_t *)node;
+ i = leaf->clusterindex;
+ if (leaf->numleafsurfaces && (i >= pvsbits || CHECKPVSBIT(pvs, i)))
{
int d, impacts, impactt;
- float dist, dist2, impact[3];
- if (surf->visframe != r_framecount)
- continue;
- dist = ndist;
- if (surf->flags & SURF_PLANEBACK)
- dist = -dist;
-
- if (dist < -0.25f && !(surf->flags & SURF_LIGHTBOTHSIDES))
- continue;
-
- dist2 = dist * dist;
- if (dist2 >= maxdist)
- continue;
-
- impact[0] = light->origin[0] - surf->plane->normal[0] * dist;
- impact[1] = light->origin[1] - surf->plane->normal[1] * dist;
- impact[2] = light->origin[2] - surf->plane->normal[2] * dist;
-
- impacts = DotProduct (impact, surf->texinfo->vecs[0]) + surf->texinfo->vecs[0][3] - surf->texturemins[0];
+ float sdist, maxdist, dist2, impact[3], planenormal[3], planedist;
+ msurface_t *surface;
+ // mark the polygons
+ maxdist = light->rtlight.lightmap_cullradius2;
+ for (i = 0;i < leaf->numleafsurfaces;i++)
+ {
+ // note: this is only called on the worldmodel
+ if (r_worldsurfacevisible[leaf->firstleafsurface[i]])
+ continue;
+ surface = ent->model->brush.data_surfaces + leaf->firstleafsurface[i];
+ if (!BoxesOverlap(surface->mins, surface->maxs, lightmins, lightmaxs))
+ continue;
- d = bound(0, impacts, surf->extents[0] + 16) - impacts;
- dist2 += d * d;
- if (dist2 > maxdist)
- continue;
+ // do q1bsp culling checks only if it is a q1bsp surface
+ if (surface->samples && surface->texinfo)
+ {
+ VectorNegate(surface->mesh.data_normal3f, planenormal);
+ planedist = DotProduct(surface->mesh.data_vertex3f, planenormal);
+ dist = sdist = DotProduct(lightorigin, planenormal) - planedist;
- impactt = DotProduct (impact, surf->texinfo->vecs[1]) + surf->texinfo->vecs[1][3] - surf->texturemins[1];
+ if (dist < -0.25f && !(surface->texture->currentmaterialflags & MATERIALFLAG_LIGHTBOTHSIDES))
+ continue;
- d = bound(0, impactt, surf->extents[1] + 16) - impactt;
- dist2 += d * d;
- if (dist2 > maxdist)
- continue;
+ dist2 = dist * dist;
+ if (dist2 >= maxdist)
+ continue;
+ VectorCopy(lightorigin, impact);
+ VectorMA(impact, -sdist, planenormal, impact);
- /*
- d = DotProduct (impact, surf->texinfo->vecs[0]) + surf->texinfo->vecs[0][3] - surf->texturemins[0];
+ impacts = DotProduct (impact, surface->texinfo->vecs[0]) + surface->texinfo->vecs[0][3] - surface->texturemins[0];
- if (d < 0)
- {
- dist2 += d * d;
- if (dist2 >= maxdist)
- continue;
- }
- else
- {
- d -= surf->extents[0] + 16;
- if (d > 0)
- {
+ d = bound(0, impacts, surface->extents[0] + 16) - impacts;
dist2 += d * d;
- if (dist2 >= maxdist)
+ if (dist2 > maxdist)
continue;
- }
- }
- d = DotProduct (impact, surf->texinfo->vecs[1]) + surf->texinfo->vecs[1][3] - surf->texturemins[1];
+ impactt = DotProduct (impact, surface->texinfo->vecs[1]) + surface->texinfo->vecs[1][3] - surface->texturemins[1];
- if (d < 0)
- {
- dist2 += d * d;
- if (dist2 >= maxdist)
- continue;
- }
- else
- {
- d -= surf->extents[1] + 16;
- if (d > 0)
- {
+ d = bound(0, impactt, surface->extents[1] + 16) - impactt;
dist2 += d * d;
- if (dist2 >= maxdist)
+ if (dist2 > maxdist)
continue;
}
- }
- */
-
- if (surf->dlightframe != r_framecount) // not dynamic until now
- {
- surf->dlightbits[0] = surf->dlightbits[1] = surf->dlightbits[2] = surf->dlightbits[3] = surf->dlightbits[4] = surf->dlightbits[5] = surf->dlightbits[6] = surf->dlightbits[7] = 0;
- surf->dlightframe = r_framecount;
- }
- surf->dlightbits[bitindex] |= bit;
- /*
- if (((surf->flags & SURF_PLANEBACK) == 0) == ((PlaneDist(lightorigin, surf->plane)) >= surf->plane->dist))
- {
- if (surf->dlightframe != r_framecount) // not dynamic until now
+ if (surface->dlightframe != r_framecount) // not dynamic until now
{
- surf->dlightbits[0] = surf->dlightbits[1] = surf->dlightbits[2] = surf->dlightbits[3] = surf->dlightbits[4] = surf->dlightbits[5] = surf->dlightbits[6] = surf->dlightbits[7] = 0;
- surf->dlightframe = r_framecount;
+ surface->dlightbits[0] = surface->dlightbits[1] = surface->dlightbits[2] = surface->dlightbits[3] = surface->dlightbits[4] = surface->dlightbits[5] = surface->dlightbits[6] = surface->dlightbits[7] = 0;
+ surface->dlightframe = r_framecount;
+ surface->cached_dlight = true;
}
- surf->dlightbits[bitindex] |= bit;
+ surface->dlightbits[bitindex] |= bit;
}
- */
- }
-
- if (node->children[0]->contents >= 0)
- {
- if (node->children[1]->contents >= 0)
- {
- R_OldMarkLights (lightorigin, light, bit, bitindex, node->children[0]);
- node = node->children[1];
- goto loc0;
- }
- else
- {
- node = node->children[0];
- goto loc0;
- }
- }
- else if (node->children[1]->contents >= 0)
- {
- node = node->children[1];
- goto loc0;
}
}
-void R_NoVisMarkLights (vec3_t lightorigin, dlight_t *light, int bit, int bitindex, model_t *model)
+void R_MarkLights(entity_render_t *ent)
{
- R_OldMarkLights(lightorigin, light, bit, bitindex, model->nodes + model->hulls[0].firstclipnode);
-}
-
-void R_VisMarkLights (vec3_t lightorigin, dlight_t *light, int bit, int bitindex, model_t *model)
-{
- static int lightframe = 0;
- mleaf_t *pvsleaf = Mod_PointInLeaf (lightorigin, model);
-
- if (!r_dynamic.value)
- return;
-
- if (!pvsleaf->compressed_vis)
- { // no vis info, so make all visible
- R_OldMarkLights(lightorigin, light, bit, bitindex, model->nodes + model->hulls[0].firstclipnode);
- return;
- }
- else
+ int i, j, bit, bitindex;
+ dlight_t *light;
+ vec3_t lightorigin, lightmins, lightmaxs;
+ if (!gl_flashblend.integer && r_dynamic.integer && ent->model && ent->model->brush.num_leafs)
{
- int i, k, m, c, leafnum;
- msurface_t *surf, **mark;
- mleaf_t *leaf;
- byte *in = pvsleaf->compressed_vis;
- int row = (model->numleafs+7)>>3;
- float low[3], high[3], radius, dist, maxdist;
-
- lightframe++;
-
- radius = light->radius * 3;
-
- // clamp radius to avoid exceeding 32768 entry division table
- if (radius > 2048)
- radius = 2048;
-
- low[0] = lightorigin[0] - radius;low[1] = lightorigin[1] - radius;low[2] = lightorigin[2] - radius;
- high[0] = lightorigin[0] + radius;high[1] = lightorigin[1] + radius;high[2] = lightorigin[2] + radius;
-
- // for comparisons to minimum acceptable light
- maxdist = radius*radius;
-
- k = 0;
- while (k < row)
+ for (i = 0, light = r_dlight;i < r_numdlights;i++, light++)
{
- c = *in++;
- if (c)
+ bit = 1 << (i & 31);
+ bitindex = i >> 5;
+ Matrix4x4_Transform(&ent->inversematrix, light->origin, lightorigin);
+ lightmins[0] = lightorigin[0] - light->rtlight.lightmap_cullradius;
+ lightmins[1] = lightorigin[1] - light->rtlight.lightmap_cullradius;
+ lightmins[2] = lightorigin[2] - light->rtlight.lightmap_cullradius;
+ lightmaxs[0] = lightorigin[0] + light->rtlight.lightmap_cullradius;
+ lightmaxs[1] = lightorigin[1] + light->rtlight.lightmap_cullradius;
+ lightmaxs[2] = lightorigin[2] + light->rtlight.lightmap_cullradius;
+ if (ent == r_refdef.worldentity)
+ {
+ lightpvsbytes = 0;
+ if (r_vismarklights.integer && ent->model->brush.FatPVS)
+ lightpvsbytes = ent->model->brush.FatPVS(ent->model, lightorigin, 0, lightpvs, sizeof(lightpvs));
+ R_RecursiveMarkLights(ent, lightorigin, lightmins, lightmaxs, light, bit, bitindex, ent->model->brush.data_nodes, lightpvs, min(lightpvsbytes * 8, ent->model->brush.num_pvsclusters));
+ }
+ else
{
- for (i = 0;i < 8;i++)
+ msurface_t *surface;
+ for (j = 0, surface = ent->model->brush.data_surfaces + ent->model->firstmodelsurface;j < ent->model->nummodelsurfaces;j++, surface++)
{
- if (c & (1<<i))
+ if (BoxesOverlap(surface->mins, surface->maxs, lightmins, lightmaxs))
{
- // warning to the clumsy: numleafs is one less than it should be, it only counts leafs with vis bits (skips leaf 0)
- leafnum = (k << 3)+i+1;
- if (leafnum > model->numleafs)
- return;
- leaf = &model->leafs[leafnum];
-// if (leaf->visframe != r_framecount)
-// continue;
-// if (leaf->contents == CONTENTS_SOLID)
-// continue;
- // if out of the light radius, skip
- if (leaf->mins[0] > high[0] || leaf->maxs[0] < low[0]
- || leaf->mins[1] > high[1] || leaf->maxs[1] < low[1]
- || leaf->mins[2] > high[2] || leaf->maxs[2] < low[2])
- continue;
- if (leaf->dlightframe != r_framecount) // not dynamic until now
- {
- leaf->dlightbits[0] = leaf->dlightbits[1] = leaf->dlightbits[2] = leaf->dlightbits[3] = leaf->dlightbits[4] = leaf->dlightbits[5] = leaf->dlightbits[6] = leaf->dlightbits[7] = 0;
- leaf->dlightframe = r_framecount;
- }
- leaf->dlightbits[bitindex] |= bit;
- if ((m = leaf->nummarksurfaces))
+ if (surface->dlightframe != r_framecount) // not dynamic until now
{
- mark = leaf->firstmarksurface;
- do
- {
- surf = *mark++;
- // if not visible in current frame, or already marked because it was in another leaf we passed, skip
- if (surf->lightframe == lightframe)
- continue;
- surf->lightframe = lightframe;
- if (surf->visframe != r_framecount)
- continue;
- dist = PlaneDiff(lightorigin, surf->plane);
- if (surf->flags & SURF_PLANEBACK)
- dist = -dist;
- // LordHavoc: make sure it is infront of the surface and not too far away
- if (dist < radius && (dist > -0.25f || ((surf->flags & SURF_LIGHTBOTHSIDES) && dist > -radius)))
- {
- int d, impacts, impactt;
- float dist2, impact[3];
-
- dist2 = dist * dist;
-
- impact[0] = light->origin[0] - surf->plane->normal[0] * dist;
- impact[1] = light->origin[1] - surf->plane->normal[1] * dist;
- impact[2] = light->origin[2] - surf->plane->normal[2] * dist;
-
- impacts = DotProduct (impact, surf->texinfo->vecs[0]) + surf->texinfo->vecs[0][3] - surf->texturemins[0];
-
- d = bound(0, impacts, surf->extents[0] + 16) - impacts;
- dist2 += d * d;
- if (dist2 > maxdist)
- continue;
-
- impactt = DotProduct (impact, surf->texinfo->vecs[1]) + surf->texinfo->vecs[1][3] - surf->texturemins[1];
-
- d = bound(0, impactt, surf->extents[1] + 16) - impactt;
- dist2 += d * d;
- if (dist2 > maxdist)
- continue;
-
- /*
- d = DotProduct (impact, surf->texinfo->vecs[0]) + surf->texinfo->vecs[0][3] - surf->texturemins[0];
-
- if (d < 0)
- {
- dist2 += d * d;
- if (dist2 >= maxdist)
- continue;
- }
- else
- {
- d -= surf->extents[0] + 16;
- if (d > 0)
- {
- dist2 += d * d;
- if (dist2 >= maxdist)
- continue;
- }
- }
-
- d = DotProduct (impact, surf->texinfo->vecs[1]) + surf->texinfo->vecs[1][3] - surf->texturemins[1];
-
- if (d < 0)
- {
- dist2 += d * d;
- if (dist2 >= maxdist)
- continue;
- }
- else
- {
- d -= surf->extents[1] + 16;
- if (d > 0)
- {
- dist2 += d * d;
- if (dist2 >= maxdist)
- continue;
- }
- }
- */
-
- if (surf->dlightframe != r_framecount) // not dynamic until now
- {
- surf->dlightbits[0] = surf->dlightbits[1] = surf->dlightbits[2] = surf->dlightbits[3] = surf->dlightbits[4] = surf->dlightbits[5] = surf->dlightbits[6] = surf->dlightbits[7] = 0;
- surf->dlightframe = r_framecount;
- }
- surf->dlightbits[bitindex] |= bit;
- }
- }
- while (--m);
+ surface->dlightbits[0] = surface->dlightbits[1] = surface->dlightbits[2] = surface->dlightbits[3] = surface->dlightbits[4] = surface->dlightbits[5] = surface->dlightbits[6] = surface->dlightbits[7] = 0;
+ surface->dlightframe = r_framecount;
+ surface->cached_dlight = true;
}
+ surface->dlightbits[bitindex] |= bit;
}
}
- k++;
- continue;
}
-
- k += *in++;
}
}
}
-
-
-/*
-=============
-R_PushDlights
-=============
-*/
-void R_PushDlights (void)
-{
- int i;
- dlight_t *l;
-
- if (!r_dynamic.value)
- return;
-
- l = cl_dlights;
-
- for (i=0 ; i<MAX_DLIGHTS ; i++, l++)
- {
- if (!l->radius)
- continue;
-// R_MarkLights (l->origin, l, 1<<(i&31), i >> 5, cl.worldmodel->nodes );
- R_VisMarkLights (l->origin, l, 1<<(i&31), i >> 5, cl.worldmodel);
- }
-
-
-}
-
+#endif
/*
=============================================================================
=============================================================================
*/
-mplane_t *lightplane;
-vec3_t lightspot;
-
-/*
-int RecursiveLightPoint (vec3_t color, mnode_t *node, vec3_t start, vec3_t end)
+void R_CompleteLightPoint(vec3_t ambientcolor, vec3_t diffusecolor, vec3_t diffusenormal, const vec3_t p, int dynamic, const mleaf_t *leaf)
{
- float front, back, frac;
- vec3_t mid;
-
-loc0:
- if (node->contents < 0)
- return false; // didn't hit anything
-
-// calculate mid point
- front = PlaneDiff (start, node->plane);
- back = PlaneDiff (end, node->plane);
+ VectorClear(diffusecolor);
+ VectorClear(diffusenormal);
- // LordHavoc: optimized recursion
- if ((back < 0) == (front < 0))
-// return RecursiveLightPoint (color, node->children[front < 0], start, end);
+ if (!r_fullbright.integer && r_refdef.worldmodel && r_refdef.worldmodel->brush.LightPoint)
{
- node = node->children[front < 0];
- goto loc0;
+ ambientcolor[0] = ambientcolor[1] = ambientcolor[2] = r_ambient.value * (2.0f / 128.0f);
+ r_refdef.worldmodel->brush.LightPoint(r_refdef.worldmodel, p, ambientcolor, diffusecolor, diffusenormal);
}
-
- frac = front / (front-back);
- mid[0] = start[0] + (end[0] - start[0])*frac;
- mid[1] = start[1] + (end[1] - start[1])*frac;
- mid[2] = start[2] + (end[2] - start[2])*frac;
-
-// go down front side
- if (RecursiveLightPoint (color, node->children[front < 0], start, mid))
- return true; // hit something
else
- {
- int i, ds, dt;
- msurface_t *surf;
- // check for impact on this node
- VectorCopy (mid, lightspot);
- lightplane = node->plane;
+ VectorSet(ambientcolor, 1, 1, 1);
- surf = cl.worldmodel->surfaces + node->firstsurface;
- for (i = 0;i < node->numsurfaces;i++, surf++)
+ // FIXME: this .lights related stuff needs to be ported into the Mod_Q1BSP code
+ if (r_refdef.worldmodel->brushq1.numlights)
+ {
+ int i;
+ vec3_t v;
+ float f;
+ mlight_t *sl;
+ for (i = 0;i < r_refdef.worldmodel->brushq1.numlights;i++)
{
- if (surf->flags & SURF_DRAWTILED)
- continue; // no lightmaps
-
- ds = (int) ((float) DotProduct (mid, surf->texinfo->vecs[0]) + surf->texinfo->vecs[0][3]);
- dt = (int) ((float) DotProduct (mid, surf->texinfo->vecs[1]) + surf->texinfo->vecs[1][3]);
-
- if (ds < surf->texturemins[0] || dt < surf->texturemins[1])
- continue;
-
- ds -= surf->texturemins[0];
- dt -= surf->texturemins[1];
-
- if (ds > surf->extents[0] || dt > surf->extents[1])
- continue;
-
- if (surf->samples)
+ sl = r_refdef.worldmodel->brushq1.lights + i;
+ if (d_lightstylevalue[sl->style] > 0)
{
- byte *lightmap;
- int maps, line3, dsfrac = ds & 15, dtfrac = dt & 15, r00 = 0, g00 = 0, b00 = 0, r01 = 0, g01 = 0, b01 = 0, r10 = 0, g10 = 0, b10 = 0, r11 = 0, g11 = 0, b11 = 0;
- float scale;
- line3 = ((surf->extents[0]>>4)+1)*3;
-
- lightmap = surf->samples + ((dt>>4) * ((surf->extents[0]>>4)+1) + (ds>>4))*3; // LordHavoc: *3 for color
-
- for (maps = 0;maps < MAXLIGHTMAPS && surf->styles[maps] != 255;maps++)
+ VectorSubtract (p, sl->origin, v);
+ f = ((1.0f / (DotProduct(v, v) * sl->falloff + sl->distbias)) - sl->subtract);
+ if (f > 0 && CL_TraceLine(p, sl->origin, NULL, NULL, false, NULL, SUPERCONTENTS_SOLID) == 1)
{
- scale = (float) d_lightstylevalue[surf->styles[maps]] * 1.0 / 256.0;
- r00 += (float) lightmap[ 0] * scale;g00 += (float) lightmap[ 1] * scale;b00 += (float) lightmap[2] * scale;
- r01 += (float) lightmap[ 3] * scale;g01 += (float) lightmap[ 4] * scale;b01 += (float) lightmap[5] * scale;
- r10 += (float) lightmap[line3+0] * scale;g10 += (float) lightmap[line3+1] * scale;b10 += (float) lightmap[line3+2] * scale;
- r11 += (float) lightmap[line3+3] * scale;g11 += (float) lightmap[line3+4] * scale;b11 += (float) lightmap[line3+5] * scale;
- lightmap += ((surf->extents[0]>>4)+1) * ((surf->extents[1]>>4)+1)*3; // LordHavoc: *3 for colored lighting
+ f *= d_lightstylevalue[sl->style] * (1.0f / 65536.0f);
+ VectorMA(ambientcolor, f, sl->light, ambientcolor);
}
-
- color[0] += (float) ((int) ((((((((r11-r10) * dsfrac) >> 4) + r10)-((((r01-r00) * dsfrac) >> 4) + r00)) * dtfrac) >> 4) + ((((r01-r00) * dsfrac) >> 4) + r00)));
- color[1] += (float) ((int) ((((((((g11-g10) * dsfrac) >> 4) + g10)-((((g01-g00) * dsfrac) >> 4) + g00)) * dtfrac) >> 4) + ((((g01-g00) * dsfrac) >> 4) + g00)));
- color[2] += (float) ((int) ((((((((b11-b10) * dsfrac) >> 4) + b10)-((((b01-b00) * dsfrac) >> 4) + b00)) * dtfrac) >> 4) + ((((b01-b00) * dsfrac) >> 4) + b00)));
}
- return true; // success
}
-
- // go down back side
- return RecursiveLightPoint (color, node->children[front >= 0], mid, end);
}
-}
-void R_LightPoint (vec3_t color, vec3_t p)
-{
- vec3_t end;
-
- if (r_fullbright.value || !cl.worldmodel->lightdata)
+ if (dynamic)
{
- color[0] = color[1] = color[2] = 255;
- return;
+ int i;
+ float f, v[3];
+ dlight_t *light;
+ // FIXME: this really should handle dlights as diffusecolor/diffusenormal somehow
+ for (i = 0;i < r_numdlights;i++)
+ {
+ light = r_dlight + i;
+ VectorSubtract(p, light->origin, v);
+ f = DotProduct(v, v);
+ if (f < light->rtlight.lightmap_cullradius2 && CL_TraceLine(p, light->origin, NULL, NULL, false, NULL, SUPERCONTENTS_SOLID) == 1)
+ {
+ f = (1.0f / (f + LIGHTOFFSET)) - light->rtlight.lightmap_subtract;
+ VectorMA(ambientcolor, f, light->rtlight.lightmap_light, ambientcolor);
+ }
+ }
}
-
- end[0] = p[0];
- end[1] = p[1];
- end[2] = p[2] - 2048;
-
- color[0] = color[1] = color[2] = r_ambient.value * 2.0f;
- RecursiveLightPoint (color, cl.worldmodel->nodes, p, end);
}
-void SV_LightPoint (vec3_t color, vec3_t p)
+typedef struct
{
- vec3_t end;
-
- if (!sv.worldmodel->lightdata)
- {
- color[0] = color[1] = color[2] = 255;
- return;
- }
-
- end[0] = p[0];
- end[1] = p[1];
- end[2] = p[2] - 2048;
-
- color[0] = color[1] = color[2] = 0;
- RecursiveLightPoint (color, sv.worldmodel->nodes, p, end);
+ vec3_t origin;
+ //vec_t cullradius2;
+ vec3_t light;
+ // how much this light would contribute to ambient if replaced
+ vec3_t ambientlight;
+ vec_t subtract;
+ vec_t falloff;
+ vec_t offset;
+ // used for choosing only the brightest lights
+ vec_t intensity;
}
-*/
-
-int RecursiveLightPoint (vec3_t color, mnode_t *node, float x, float y, float startz, float endz)
-{
- int side, distz = endz - startz;
- float front, back;
- float mid;
+nearlight_t;
-loc0:
- if (node->contents < 0)
- return false; // didn't hit anything
+static int nearlights;
+static nearlight_t nearlight[MAX_DLIGHTS];
- switch (node->plane->type)
+int R_LightModel(float *ambient4f, float *diffusecolor, float *diffusenormal, const entity_render_t *ent, float colorr, float colorg, float colorb, float colora, int worldcoords)
+{
+ int i, j, maxnearlights;
+ float v[3], f, mscale, stylescale, intensity, ambientcolor[3], tempdiffusenormal[3];
+ nearlight_t *nl;
+ mlight_t *sl;
+ dlight_t *light;
+
+ nearlights = 0;
+ maxnearlights = r_modellights.integer;
+ ambient4f[0] = ambient4f[1] = ambient4f[2] = r_ambient.value * (2.0f / 128.0f);
+ VectorClear(diffusecolor);
+ VectorClear(diffusenormal);
+ if (!(ent->flags & RENDER_LIGHT))
{
- case PLANE_X:
- node = node->children[x < node->plane->dist];
- goto loc0;
- case PLANE_Y:
- node = node->children[y < node->plane->dist];
- goto loc0;
- case PLANE_Z:
- side = startz < node->plane->dist;
- if ((endz < node->plane->dist) == side)
- {
- node = node->children[side];
- goto loc0;
- }
- // found an intersection
-// mid = startz + (endz - startz) * (startz - node->plane->dist) / (startz - endz);
-// mid = startz + distz * (startz - node->plane->dist) / (-distz);
-// mid = startz + (-(startz - node->plane->dist));
-// mid = startz - (startz - node->plane->dist);
-// mid = startz + node->plane->dist - startz;
- mid = node->plane->dist;
- break;
- default:
- back = front = x * node->plane->normal[0] + y * node->plane->normal[1];
- front += startz * node->plane->normal[2];
- back += endz * node->plane->normal[2];
- side = front < node->plane->dist;
- if ((back < node->plane->dist) == side)
- {
- node = node->children[side];
- goto loc0;
- }
- // found an intersection
-// mid = startz + (endz - startz) * ((front - node->plane->dist) / ((front - node->plane->dist) - (back - node->plane->dist)));
-// mid = startz + (endz - startz) * ((front - node->plane->dist) / (front - back));
- mid = startz + distz * (front - node->plane->dist) / (front - back);
- break;
+ // highly rare
+ VectorSet(ambient4f, 1, 1, 1);
+ maxnearlights = 0;
}
-
- // go down front side
- if (node->children[side]->contents >= 0 && RecursiveLightPoint (color, node->children[side], x, y, startz, mid))
- return true; // hit something
+ else if (r_lightmapintensity <= 0 && !(ent->flags & RENDER_TRANSPARENT))
+ maxnearlights = 0;
else
{
- // check for impact on this node
- if (node->numsurfaces)
+ if (r_refdef.worldmodel && r_refdef.worldmodel->brush.LightPoint)
{
- int i, ds, dt;
- msurface_t *surf;
- lightspot[0] = x;
- lightspot[1] = y;
- lightspot[2] = mid;
- lightplane = node->plane;
-
- surf = cl.worldmodel->surfaces + node->firstsurface;
- for (i = 0;i < node->numsurfaces;i++, surf++)
- {
- if (surf->flags & SURF_DRAWTILED)
- continue; // no lightmaps
-
- ds = (int) (x * surf->texinfo->vecs[0][0] + y * surf->texinfo->vecs[0][1] + mid * surf->texinfo->vecs[0][2] + surf->texinfo->vecs[0][3]);
- dt = (int) (x * surf->texinfo->vecs[1][0] + y * surf->texinfo->vecs[1][1] + mid * surf->texinfo->vecs[1][2] + surf->texinfo->vecs[1][3]);
-
- if (ds < surf->texturemins[0] || dt < surf->texturemins[1])
- continue;
-
- ds -= surf->texturemins[0];
- dt -= surf->texturemins[1];
-
- if (ds > surf->extents[0] || dt > surf->extents[1])
- continue;
-
- if (surf->samples)
- {
- byte *lightmap;
- int maps, line3, size3, dsfrac = ds & 15, dtfrac = dt & 15, scale = 0, r00 = 0, g00 = 0, b00 = 0, r01 = 0, g01 = 0, b01 = 0, r10 = 0, g10 = 0, b10 = 0, r11 = 0, g11 = 0, b11 = 0;
- line3 = ((surf->extents[0]>>4)+1)*3;
- size3 = ((surf->extents[0]>>4)+1) * ((surf->extents[1]>>4)+1)*3; // LordHavoc: *3 for colored lighting
-
- lightmap = surf->samples + ((dt>>4) * ((surf->extents[0]>>4)+1) + (ds>>4))*3; // LordHavoc: *3 for color
-
- for (maps = 0;maps < MAXLIGHTMAPS && surf->styles[maps] != 255;maps++)
- {
- scale = d_lightstylevalue[surf->styles[maps]];
- r00 += lightmap[ 0] * scale;g00 += lightmap[ 1] * scale;b00 += lightmap[ 2] * scale;
- r01 += lightmap[ 3] * scale;g01 += lightmap[ 4] * scale;b01 += lightmap[ 5] * scale;
- r10 += lightmap[line3+0] * scale;g10 += lightmap[line3+1] * scale;b10 += lightmap[line3+2] * scale;
- r11 += lightmap[line3+3] * scale;g11 += lightmap[line3+4] * scale;b11 += lightmap[line3+5] * scale;
- lightmap += size3;
- }
-
- /*
- // LordHavoc: here's the readable version of the interpolation
- // code, not quite as easy for the compiler to optimize...
-
- // dsfrac is the X position in the lightmap pixel, * 16
- // dtfrac is the Y position in the lightmap pixel, * 16
- // r00 is top left corner, r01 is top right corner
- // r10 is bottom left corner, r11 is bottom right corner
- // g and b are the same layout.
- // r0 and r1 are the top and bottom intermediate results
-
- // first we interpolate the top two points, to get the top
- // edge sample
- r0 = (((r01-r00) * dsfrac) >> 4) + r00;
- g0 = (((g01-g00) * dsfrac) >> 4) + g00;
- b0 = (((b01-b00) * dsfrac) >> 4) + b00;
- // then we interpolate the bottom two points, to get the
- // bottom edge sample
- r1 = (((r11-r10) * dsfrac) >> 4) + r10;
- g1 = (((g11-g10) * dsfrac) >> 4) + g10;
- b1 = (((b11-b10) * dsfrac) >> 4) + b10;
- // then we interpolate the top and bottom samples to get the
- // middle sample (the one which was requested)
- r = (((r1-r0) * dtfrac) >> 4) + r0;
- g = (((g1-g0) * dtfrac) >> 4) + g0;
- b = (((b1-b0) * dtfrac) >> 4) + b0;
- */
-
- color[0] += (float) ((((((((r11-r10) * dsfrac) >> 4) + r10)-((((r01-r00) * dsfrac) >> 4) + r00)) * dtfrac) >> 4) + ((((r01-r00) * dsfrac) >> 4) + r00)) * (1.0f / 256.0f);
- color[1] += (float) ((((((((g11-g10) * dsfrac) >> 4) + g10)-((((g01-g00) * dsfrac) >> 4) + g00)) * dtfrac) >> 4) + ((((g01-g00) * dsfrac) >> 4) + g00)) * (1.0f / 256.0f);
- color[2] += (float) ((((((((b11-b10) * dsfrac) >> 4) + b10)-((((b01-b00) * dsfrac) >> 4) + b00)) * dtfrac) >> 4) + ((((b01-b00) * dsfrac) >> 4) + b00)) * (1.0f / 256.0f);
- }
- return true; // success
- }
+ r_refdef.worldmodel->brush.LightPoint(r_refdef.worldmodel, ent->origin, ambient4f, diffusecolor, tempdiffusenormal);
+ Matrix4x4_Transform3x3(&ent->inversematrix, tempdiffusenormal, diffusenormal);
+ VectorNormalize(diffusenormal);
}
-
- // go down back side
- node = node->children[side ^ 1];
- startz = mid;
- distz = endz - startz;
- goto loc0;
-// return RecursiveLightPoint (color, node->children[side ^ 1], x, y, mid, endz);
+ else
+ VectorSet(ambient4f, 1, 1, 1);
}
-}
-
-void R_DynamicLightPoint(vec3_t color, vec3_t org, int *dlightbits)
-{
- int i, j, k;
- vec3_t dist;
- float brightness, r, f;
- if (!r_dynamic.value || (!dlightbits[0] && !dlightbits[1] && !dlightbits[2] && !dlightbits[3] && !dlightbits[4] && !dlightbits[5] && !dlightbits[6] && !dlightbits[7]))
- return;
-
- for (j = 0;j < (MAX_DLIGHTS >> 5);j++)
+ // scale of the model's coordinate space, to alter light attenuation to match
+ // make the mscale squared so it can scale the squared distance results
+ mscale = ent->scale * ent->scale;
+ // FIXME: no support for .lights on non-Q1BSP?
+ nl = &nearlight[0];
+ for (i = 0;i < ent->numentlights;i++)
{
- if (dlightbits[j])
+ sl = r_refdef.worldmodel->brushq1.lights + ent->entlights[i];
+ stylescale = d_lightstylevalue[sl->style] * (1.0f / 65536.0f);
+ VectorSubtract (ent->origin, sl->origin, v);
+ f = ((1.0f / (DotProduct(v, v) * sl->falloff + sl->distbias)) - sl->subtract) * stylescale;
+ VectorScale(sl->light, f, ambientcolor);
+ intensity = DotProduct(ambientcolor, ambientcolor);
+ if (f < 0)
+ intensity *= -1.0f;
+ if (nearlights < maxnearlights)
+ j = nearlights++;
+ else
{
- for (i=0 ; i<32 ; i++)
+ for (j = 0;j < maxnearlights;j++)
{
- if (!((1 << i) & dlightbits[j]))
- continue;
- k = (j<<5)+i;
- if (!cl_dlights[k].radius)
- continue;
- VectorSubtract (org, cl_dlights[k].origin, dist);
- f = DotProduct(dist, dist) + LIGHTOFFSET;
- r = cl_dlights[k].radius*cl_dlights[k].radius;
- if (f < r)
+ if (nearlight[j].intensity < intensity)
{
- brightness = r * 128.0f / f;
- color[0] += brightness * cl_dlights[k].color[0];
- color[1] += brightness * cl_dlights[k].color[1];
- color[2] += brightness * cl_dlights[k].color[2];
+ if (nearlight[j].intensity > 0)
+ VectorAdd(ambient4f, nearlight[j].ambientlight, ambient4f);
+ break;
}
}
}
- }
-}
-
-void R_CompleteLightPoint (vec3_t color, vec3_t p, int dynamic, mleaf_t *leaf)
-{
- if (leaf == NULL)
- leaf = Mod_PointInLeaf(p, cl.worldmodel);
-
- if (leaf->contents == CONTENTS_SOLID)
- {
- color[0] = color[1] = color[2] = 0;
- return;
- }
-
- if (r_fullbright.value || !cl.worldmodel->lightdata)
- {
- color[0] = color[1] = color[2] = 255;
- return;
- }
-
- color[0] = color[1] = color[2] = r_ambient.value * 2.0f;
- RecursiveLightPoint (color, cl.worldmodel->nodes, p[0], p[1], p[2], p[2] - 65536);
-
- if (dynamic)
- R_DynamicLightPoint(color, p, leaf->dlightbits);
-}
-
-void R_ModelLightPoint (vec3_t color, vec3_t p, int *dlightbits)
-{
- mleaf_t *leaf;
- leaf = Mod_PointInLeaf(p, cl.worldmodel);
- if (leaf->contents == CONTENTS_SOLID)
- {
- color[0] = color[1] = color[2] = 0;
- dlightbits[0] = dlightbits[1] = dlightbits[2] = dlightbits[3] = dlightbits[4] = dlightbits[5] = dlightbits[6] = dlightbits[7] = 0;
- return;
- }
-
- if (r_fullbright.value || !cl.worldmodel->lightdata)
- {
- color[0] = color[1] = color[2] = 255;
- dlightbits[0] = dlightbits[1] = dlightbits[2] = dlightbits[3] = dlightbits[4] = dlightbits[5] = dlightbits[6] = dlightbits[7] = 0;
- return;
- }
-
- color[0] = color[1] = color[2] = r_ambient.value * 2.0f;
- RecursiveLightPoint (color, cl.worldmodel->nodes, p[0], p[1], p[2], p[2] - 65536);
-
- if (leaf->dlightframe == r_framecount)
- {
- dlightbits[0] = leaf->dlightbits[0];
- dlightbits[1] = leaf->dlightbits[1];
- dlightbits[2] = leaf->dlightbits[2];
- dlightbits[3] = leaf->dlightbits[3];
- dlightbits[4] = leaf->dlightbits[4];
- dlightbits[5] = leaf->dlightbits[5];
- dlightbits[6] = leaf->dlightbits[6];
- dlightbits[7] = leaf->dlightbits[7];
- }
- else
- dlightbits[0] = dlightbits[1] = dlightbits[2] = dlightbits[3] = dlightbits[4] = dlightbits[5] = dlightbits[6] = dlightbits[7] = 0;
-}
-
-/* // not currently used
-void R_DynamicLightPointNoMask(vec3_t color, vec3_t org)
-{
- int i;
- vec3_t dist;
- float brightness, r, f;
-
- if (!r_dynamic.value)
- return;
-
- for (i=0 ; i<MAX_DLIGHTS ; i++)
- {
- if (!cl_dlights[i].radius)
- continue;
- VectorSubtract (org, cl_dlights[i].origin, dist);
- f = DotProduct(dist, dist) + LIGHTOFFSET;
- r = cl_dlights[i].radius*cl_dlights[i].radius;
- if (f < r)
+ if (j >= maxnearlights)
{
- brightness = r * 256.0f / f;
- if (cl_dlights[i].dark)
- brightness = -brightness;
- color[0] += brightness * cl_dlights[i].color[0];
- color[1] += brightness * cl_dlights[i].color[1];
- color[2] += brightness * cl_dlights[i].color[2];
+ // this light is less significant than all others,
+ // add it to ambient
+ if (intensity > 0)
+ VectorAdd(ambient4f, ambientcolor, ambient4f);
}
- }
-}
-*/
-
-void R_LightModel(int numverts)
-{
- // LordHavoc: warning: reliance on int being 4 bytes here (of course the d_8to24table relies on that too...)
- int i, j, nearlights = 0, color;
- vec3_t dist, mod, basecolor, center;
- float t, t1, t2, t3, *avn, number;
- byte r,g,b,a, *avc;
- struct
- {
- vec3_t color;
- vec3_t origin;
- } nearlight[MAX_DLIGHTS];
- int modeldlightbits[8];
- avc = aliasvertcolor;
- avn = aliasvertnorm;
- VectorCopy(currentrenderentity->origin, center);
- a = (byte) bound((int) 0, (int) (currentrenderentity->alpha * 255.0f), (int) 255);
- if (lighthalf)
- {
- mod[0] = currentrenderentity->colormod[0] * 0.5f;
- mod[1] = currentrenderentity->colormod[1] * 0.5f;
- mod[2] = currentrenderentity->colormod[2] * 0.5f;
- }
- else
- {
- mod[0] = currentrenderentity->colormod[0];
- mod[1] = currentrenderentity->colormod[1];
- mod[2] = currentrenderentity->colormod[2];
- }
- if (currentrenderentity->effects & EF_FULLBRIGHT)
- {
- if (a == 255)
- memset(avc, 0, 4 * numverts);
else
{
- ((byte *)&color)[0] = (byte) (255.0f * mod[0]);
- ((byte *)&color)[1] = (byte) (255.0f * mod[1]);
- ((byte *)&color)[2] = (byte) (255.0f * mod[2]);
- ((byte *)&color)[3] = a;
- for (i = 0;i < numverts;i++)
- {
- *((int *)avc) = color;
- avc += 4;
- }
+ nl = nearlight + j;
+ nl->intensity = intensity;
+ // transform the light into the model's coordinate system
+ if (worldcoords)
+ VectorCopy(sl->origin, nl->origin);
+ else
+ Matrix4x4_Transform(&ent->inversematrix, sl->origin, nl->origin);
+ // integrate mscale into falloff, for maximum speed
+ nl->falloff = sl->falloff * mscale;
+ VectorCopy(ambientcolor, nl->ambientlight);
+ nl->light[0] = sl->light[0] * stylescale * colorr * 4.0f;
+ nl->light[1] = sl->light[1] * stylescale * colorg * 4.0f;
+ nl->light[2] = sl->light[2] * stylescale * colorb * 4.0f;
+ nl->subtract = sl->subtract;
+ nl->offset = sl->distbias;
}
- return;
}
- R_ModelLightPoint(basecolor, center, modeldlightbits);
-
- basecolor[0] *= mod[0];
- basecolor[1] *= mod[1];
- basecolor[2] *= mod[2];
- for (i = 0;i < MAX_DLIGHTS;i++)
+ if (!r_rtdlight || (ent->flags & RENDER_TRANSPARENT))
{
- if (!modeldlightbits[i >> 5])
- {
- i |= 31;
- continue;
- }
- if (!(modeldlightbits[i >> 5] & (1 << (i & 31))))
- continue;
- VectorSubtract (center, cl_dlights[i].origin, dist);
- t2 = DotProduct(dist,dist) + LIGHTOFFSET;
- t1 = cl_dlights[i].radius*cl_dlights[i].radius;
- if (t2 < t1)
+ // FIXME: this dlighting doesn't look like rtlights
+ for (i = 0;i < r_numdlights;i++)
{
- if (TraceLine(center, cl_dlights[i].origin, NULL, NULL, 0))
+ light = r_dlight + i;
+ VectorCopy(light->origin, v);
+ if (v[0] < ent->mins[0]) v[0] = ent->mins[0];if (v[0] > ent->maxs[0]) v[0] = ent->maxs[0];
+ if (v[1] < ent->mins[1]) v[1] = ent->mins[1];if (v[1] > ent->maxs[1]) v[1] = ent->maxs[1];
+ if (v[2] < ent->mins[2]) v[2] = ent->mins[2];if (v[2] > ent->maxs[2]) v[2] = ent->maxs[2];
+ VectorSubtract (v, light->origin, v);
+ if (DotProduct(v, v) < light->rtlight.lightmap_cullradius2)
{
- // transform the light into the model's coordinate system
- if (gl_transform.value)
- softwareuntransform(cl_dlights[i].origin, nearlight[nearlights].origin);
+ if (CL_TraceLine(ent->origin, light->origin, NULL, NULL, false, NULL, SUPERCONTENTS_SOLID) != 1)
+ continue;
+ VectorSubtract (ent->origin, light->origin, v);
+ f = ((1.0f / (DotProduct(v, v) + LIGHTOFFSET)) - light->rtlight.lightmap_subtract);
+ VectorScale(light->rtlight.lightmap_light, f, ambientcolor);
+ intensity = DotProduct(ambientcolor, ambientcolor);
+ if (f < 0)
+ intensity *= -1.0f;
+ if (nearlights < maxnearlights)
+ j = nearlights++;
else
- VectorCopy(cl_dlights[i].origin, nearlight[nearlights].origin);
- nearlight[nearlights].color[0] = cl_dlights[i].color[0] * t1 * mod[0];
- nearlight[nearlights].color[1] = cl_dlights[i].color[1] * t1 * mod[1];
- nearlight[nearlights].color[2] = cl_dlights[i].color[2] * t1 * mod[2];
- if (r_lightmodels.value && currentrenderentity != cl_dlights[i].ent)
{
- // boost color, to compensate for dark lighting calcs
- VectorScale(nearlight[nearlights].color, cl_dlights[i].radius * 16.0f, nearlight[nearlights].color);
- nearlights++;
+ for (j = 0;j < maxnearlights;j++)
+ {
+ if (nearlight[j].intensity < intensity)
+ {
+ if (nearlight[j].intensity > 0)
+ VectorAdd(ambient4f, nearlight[j].ambientlight, ambient4f);
+ break;
+ }
+ }
+ }
+ if (j >= maxnearlights)
+ {
+ // this light is less significant than all others,
+ // add it to ambient
+ if (intensity > 0)
+ VectorAdd(ambient4f, ambientcolor, ambient4f);
}
else
{
-#if SLOWMATH
- t1 = 1.0f / sqrt(t2);
-#else
- number = t1;
- *((long *)&t1) = 0x5f3759df - ((* (long *) &number) >> 1);
- t1 = t1 * (1.5f - (number * 0.5f * t1 * t1));
-#endif
- t1 = t1 * t1;
- basecolor[0] += nearlight[nearlights].color[0] * t1;
- basecolor[1] += nearlight[nearlights].color[1] * t1;
- basecolor[2] += nearlight[nearlights].color[2] * t1;
+ nl = nearlight + j;
+ nl->intensity = intensity;
+ // transform the light into the model's coordinate system
+ if (worldcoords)
+ VectorCopy(light->origin, nl->origin);
+ else
+ {
+ Matrix4x4_Transform(&ent->inversematrix, light->origin, nl->origin);
+ /*
+ Con_Printf("%i %s : %f %f %f : %f %f %f\n%f %f %f %f\n%f %f %f %f\n%f %f %f %f\n%f %f %f %f\n"
+ , rd - r_dlight, ent->model->name
+ , light->origin[0], light->origin[1], light->origin[2]
+ , nl->origin[0], nl->origin[1], nl->origin[2]
+ , ent->inversematrix.m[0][0], ent->inversematrix.m[0][1], ent->inversematrix.m[0][2], ent->inversematrix.m[0][3]
+ , ent->inversematrix.m[1][0], ent->inversematrix.m[1][1], ent->inversematrix.m[1][2], ent->inversematrix.m[1][3]
+ , ent->inversematrix.m[2][0], ent->inversematrix.m[2][1], ent->inversematrix.m[2][2], ent->inversematrix.m[2][3]
+ , ent->inversematrix.m[3][0], ent->inversematrix.m[3][1], ent->inversematrix.m[3][2], ent->inversematrix.m[3][3]);
+ */
+ }
+ // integrate mscale into falloff, for maximum speed
+ nl->falloff = mscale;
+ VectorCopy(ambientcolor, nl->ambientlight);
+ nl->light[0] = light->rtlight.lightmap_light[0] * colorr * 4.0f;
+ nl->light[1] = light->rtlight.lightmap_light[1] * colorg * 4.0f;
+ nl->light[2] = light->rtlight.lightmap_light[2] * colorb * 4.0f;
+ nl->subtract = light->rtlight.lightmap_subtract;
+ nl->offset = LIGHTOFFSET;
}
}
}
}
- t1 = bound(0, basecolor[0], 255);r = (byte) t1;
- t1 = bound(0, basecolor[1], 255);g = (byte) t1;
- t1 = bound(0, basecolor[2], 255);b = (byte) t1;
- ((byte *)&color)[0] = r;
- ((byte *)&color)[1] = g;
- ((byte *)&color)[2] = b;
- ((byte *)&color)[3] = a;
- if (nearlights)
+ ambient4f[0] *= colorr;
+ ambient4f[1] *= colorg;
+ ambient4f[2] *= colorb;
+ ambient4f[3] = colora;
+ diffusecolor[0] *= colorr;
+ diffusecolor[1] *= colorg;
+ diffusecolor[2] *= colorb;
+ return nearlights != 0 || DotProduct(diffusecolor, diffusecolor) > 0;
+}
+
+void R_LightModel_CalcVertexColors(const float *ambientcolor4f, const float *diffusecolor, const float *diffusenormal, int numverts, const float *vertex3f, const float *normal3f, float *color4f)
+{
+ int i, j, usediffuse;
+ float color[4], v[3], dot, dist2, f, dnormal[3];
+ nearlight_t *nl;
+ usediffuse = DotProduct(diffusecolor, diffusecolor) > 0;
+ // negate the diffuse normal to avoid the need to negate the
+ // dotproduct on each vertex
+ VectorNegate(diffusenormal, dnormal);
+ if (usediffuse)
+ VectorNormalize(dnormal);
+ // directional shading code here
+ for (i = 0;i < numverts;i++, vertex3f += 3, normal3f += 3, color4f += 4)
{
- int i1, i2, i3;
- vec3_t v;
- float *av, number;
- av = aliasvert;
- for (i = 0;i < numverts;i++)
+ VectorCopy4(ambientcolor4f, color);
+
+ // silly directional diffuse shading
+ if (usediffuse)
{
- t1 = basecolor[0];
- t2 = basecolor[1];
- t3 = basecolor[2];
- for (j = 0;j < nearlights;j++)
+ dot = DotProduct(normal3f, dnormal);
+ if (dot > 0)
+ VectorMA(color, dot, diffusecolor, color);
+ }
+
+ // pretty good lighting
+ for (j = 0, nl = &nearlight[0];j < nearlights;j++, nl++)
+ {
+ VectorSubtract(nl->origin, vertex3f, v);
+ // first eliminate negative lighting (back side)
+ dot = DotProduct(normal3f, v);
+ if (dot > 0)
{
- VectorSubtract(nearlight[j].origin, av, v);
- t = DotProduct(avn,v);
- if (t > 0)
+ // we'll need this again later to normalize the dotproduct
+ dist2 = DotProduct(v,v);
+ // do the distance attenuation math
+ f = (1.0f / (dist2 * nl->falloff + nl->offset)) - nl->subtract;
+ if (f > 0)
{
-#if SLOWMATH
- t = 1.0f / sqrt(DotProduct(v,v) + 1.0f);
-#else
- number = DotProduct(v, v) + LIGHTOFFSET;
- *((long *)&t) = 0x5f3759df - ((* (long *) &number) >> 1);
- t = t * (1.5f - (number * 0.5f * t * t));
-#endif
- t = t * t * t;
- t1 += nearlight[j].color[0] * t;
- t2 += nearlight[j].color[1] * t;
- t3 += nearlight[j].color[2] * t;
+ // we must divide dot by sqrt(dist2) to compensate for
+ // the fact we did not normalize v before doing the
+ // dotproduct, the result is in the range 0 to 1 (we
+ // eliminated negative numbers already)
+ f *= dot / sqrt(dist2);
+ // blend in the lighting
+ VectorMA(color, f, nl->light, color);
}
}
-
- // FIXME: float to int conversions are very slow on x86 because of
- // mode switchs (switch from nearest rounding to down, then back,
- // each time), reimplement this part in assembly, SSE and 3DNow!
- // versions recommended as well
-#if SLOWMATH
- i1 = (int) t1;
- i2 = (int) t2;
- i3 = (int) t3;
-#else
- // later note: implemented bit hacking float to integer,
- // probably makes the issue irrelevant
- t1 += 8388608.0f;
- i1 = *((long *)&t1) & 0x007FFFFF;
- t2 += 8388608.0f;
- i2 = *((long *)&t2) & 0x007FFFFF;
- t3 += 8388608.0f;
- i3 = *((long *)&t3) & 0x007FFFFF;
-#endif
-
- avc[0] = bound(0, i1, 255);
- avc[1] = bound(0, i2, 255);
- avc[2] = bound(0, i3, 255);
- avc[3] = a;
- avc += 4;
- av += 3;
- avn += 3;
}
+ VectorCopy4(color, color4f);
}
- else
+}
+
+void R_UpdateEntLights(entity_render_t *ent)
+{
+ int i;
+ const mlight_t *sl;
+ vec3_t v;
+ if (r_lightmapintensity <= 0 && !(ent->flags & RENDER_TRANSPARENT))
+ return;
+ VectorSubtract(ent->origin, ent->entlightsorigin, v);
+ if (ent->entlightsframe != (r_framecount - 1) || (realtime > ent->entlightstime && DotProduct(v,v) >= 1.0f))
{
- for (i = 0;i < numverts;i++)
- {
- *((int *)avc) = color;
- avc += 4;
- }
+ ent->entlightstime = realtime + 0.1;
+ VectorCopy(ent->origin, ent->entlightsorigin);
+ ent->numentlights = 0;
+ if (r_refdef.worldmodel)
+ for (i = 0, sl = r_refdef.worldmodel->brushq1.lights;i < r_refdef.worldmodel->brushq1.numlights && ent->numentlights < MAXENTLIGHTS;i++, sl++)
+ if (CL_TraceLine(ent->origin, sl->origin, NULL, NULL, false, NULL, SUPERCONTENTS_SOLID) == 1)
+ ent->entlights[ent->numentlights++] = i;
}
+ ent->entlightsframe = r_framecount;
}
+
projects / xonotic / darkplaces.git / blobdiff