]> de.git.xonotic.org Git - xonotic/darkplaces.git/blobdiff - r_light.c
eliminated qbyte type, now uses unsigned char throughout the engine for this purpose
[xonotic/darkplaces.git] / r_light.c
index 4e7d51fa5b44ae5c8aac96ca3909c2a483010c85..f8b99601c03d32d1818b71b75f64deb8c7225b6d 100644 (file)
--- a/r_light.c
+++ b/r_light.c
@@ -23,9 +23,6 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 #include "cl_collision.h"
 #include "r_shadow.h"
 
-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"};
@@ -38,7 +35,7 @@ void r_light_start(void)
 {
        float dx, dy;
        int x, y, a;
-       qbyte pixels[32][32][4];
+       unsigned char pixels[32][32][4];
        lighttexturepool = R_AllocTexturePool();
        for (y = 0;y < 32;y++)
        {
@@ -67,7 +64,7 @@ void r_light_newmap(void)
 {
        int i;
        for (i = 0;i < 256;i++)
-               d_lightstylevalue[i] = 264;             // normal light value
+               r_refdef.lightstylevalue[i] = 264;              // normal light value
 }
 
 void R_Light_Init(void)
@@ -79,53 +76,6 @@ void R_Light_Init(void)
        R_RegisterModule("R_Light", r_light_start, r_light_shutdown, r_light_newmap);
 }
 
-/*
-==================
-R_UpdateLights
-==================
-*/
-void R_UpdateLights(void)
-{
-       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);
-       frac = (cl.time * 10) - i;
-       for (j = 0;j < MAX_LIGHTSTYLES;j++)
-       {
-               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';
-               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;
@@ -138,16 +88,17 @@ void R_DrawCoronas(void)
        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)
+               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_TraceBox(light->rtlight.shadoworigin, vec3_origin, vec3_origin, r_vieworigin, true, NULL, SUPERCONTENTS_SOLID, false).fraction == 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);
+                       R_DrawSprite(GL_ONE, GL_ONE, lightcorona, NULL, 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++)
+       for (i = 0;i < r_refdef.numlights;i++)
        {
-               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)
+               light = r_refdef.lights[i];
+               if ((light->flags & flag) && light->corona * r_coronas.value > 0 && (dist = (DotProduct(light->origin, r_viewforward) - viewdist)) >= 24.0f && CL_TraceBox(light->origin, vec3_origin, vec3_origin, r_vieworigin, true, NULL, SUPERCONTENTS_SOLID, false).fraction == 1)
                {
                        cscale = light->corona * r_coronas.value * 0.25f;
                        scale = light->rtlight.radius * light->rtlight.coronasizescale;
@@ -156,157 +107,11 @@ void R_DrawCoronas(void)
                                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);
+                       R_DrawSprite(GL_ONE, GL_ONE, lightcorona, NULL, 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
-/*
-=============================================================================
-
-DYNAMIC LIGHTS
-
-=============================================================================
-*/
-
-static int lightpvsbytes;
-static qbyte lightpvs[(MAX_MAP_LEAFS+7)>>3];
-
-/*
-=============
-R_MarkLights
-=============
-*/
-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)
-{
-       int i;
-       mleaf_t *leaf;
-       float dist;
-
-       // for comparisons to minimum acceptable light
-       while(node->plane)
-       {
-               dist = PlaneDiff(lightorigin, node->plane);
-               if (dist > light->rtlight.lightmap_cullradius)
-                       node = node->children[0];
-               else
-               {
-                       if (dist >= -light->rtlight.lightmap_cullradius)
-                               R_RecursiveMarkLights(ent, lightorigin, lightmins, lightmaxs, light, bit, bitindex, node->children[0], pvs, pvsbits);
-                       node = node->children[1];
-               }
-       }
-
-       // 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 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;
-
-                       // 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;
-
-                               if (dist < -0.25f && !(surface->texture->currentmaterialflags & MATERIALFLAG_LIGHTBOTHSIDES))
-                                       continue;
-
-                               dist2 = dist * dist;
-                               if (dist2 >= maxdist)
-                                       continue;
-
-                               VectorCopy(lightorigin, impact);
-                               VectorMA(impact, -sdist, planenormal, impact);
-
-                               impacts = DotProduct (impact, surface->texinfo->vecs[0]) + surface->texinfo->vecs[0][3] - surface->texturemins[0];
-
-                               d = bound(0, impacts, surface->extents[0] + 16) - impacts;
-                               dist2 += d * d;
-                               if (dist2 > maxdist)
-                                       continue;
-
-                               impactt = DotProduct (impact, surface->texinfo->vecs[1]) + surface->texinfo->vecs[1][3] - surface->texturemins[1];
-
-                               d = bound(0, impactt, surface->extents[1] + 16) - impactt;
-                               dist2 += d * d;
-                               if (dist2 > maxdist)
-                                       continue;
-                       }
-
-                       if (surface->dlightframe != r_framecount) // not dynamic until now
-                       {
-                               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;
-               }
-       }
-}
-
-void R_MarkLights(entity_render_t *ent)
-{
-       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)
-       {
-               for (i = 0, light = r_dlight;i < r_numdlights;i++, light++)
-               {
-                       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
-                       {
-                               msurface_t *surface;
-                               for (j = 0, surface = ent->model->brush.data_surfaces + ent->model->firstmodelsurface;j < ent->model->nummodelsurfaces;j++, surface++)
-                               {
-                                       if (BoxesOverlap(surface->mins, surface->maxs, lightmins, lightmaxs))
-                                       {
-                                               if (surface->dlightframe != r_framecount) // not dynamic until now
-                                               {
-                                                       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;
-                                       }
-                               }
-                       }
-               }
-       }
-}
-#endif
-
 /*
 =============================================================================
 
@@ -315,7 +120,7 @@ LIGHT SAMPLING
 =============================================================================
 */
 
-void R_CompleteLightPoint(vec3_t ambientcolor, vec3_t diffusecolor, vec3_t diffusenormal, const vec3_t p, int dynamic, const mleaf_t *leaf)
+void R_CompleteLightPoint(vec3_t ambientcolor, vec3_t diffusecolor, vec3_t diffusenormal, const vec3_t p, int dynamic)
 {
        VectorClear(diffusecolor);
        VectorClear(diffusenormal);
@@ -338,14 +143,15 @@ void R_CompleteLightPoint(vec3_t ambientcolor, vec3_t diffusecolor, vec3_t diffu
                for (i = 0;i < r_refdef.worldmodel->brushq1.numlights;i++)
                {
                        sl = r_refdef.worldmodel->brushq1.lights + i;
-                       if (d_lightstylevalue[sl->style] > 0)
+                       if (r_refdef.lightstylevalue[sl->style] > 0)
                        {
                                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)
+                               if (f > 0 && CL_TraceBox(p, vec3_origin, vec3_origin, sl->origin, false, NULL, SUPERCONTENTS_SOLID, false).fraction == 1)
                                {
-                                       f *= d_lightstylevalue[sl->style] * (1.0f / 65536.0f);
-                                       VectorMA(ambientcolor, f, sl->light, ambientcolor);
+                                       f *= r_refdef.lightstylevalue[sl->style] * (1.0f / 65536.0f);
+                                       if (f > 0)
+                                               VectorMA(ambientcolor, f, sl->light, ambientcolor);
                                }
                        }
                }
@@ -357,21 +163,23 @@ void R_CompleteLightPoint(vec3_t ambientcolor, vec3_t diffusecolor, vec3_t diffu
                float f, v[3];
                dlight_t *light;
                // FIXME: this really should handle dlights as diffusecolor/diffusenormal somehow
-               for (i = 0;i < r_numdlights;i++)
+               // FIXME: this should be updated to match rtlight falloff!
+               for (i = 0;i < r_refdef.numlights;i++)
                {
-                       light = r_dlight + i;
+                       light = r_refdef.lights[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)
+                       if (f < light->rtlight.lightmap_cullradius2 && CL_TraceBox(p, vec3_origin, vec3_origin, light->origin, false, NULL, SUPERCONTENTS_SOLID, false).fraction == 1)
                        {
                                f = (1.0f / (f + LIGHTOFFSET)) - light->rtlight.lightmap_subtract;
-                               VectorMA(ambientcolor, f, light->rtlight.lightmap_light, ambientcolor);
+                               if (f > 0)
+                                       VectorMA(ambientcolor, f, light->rtlight.lightmap_light, ambientcolor);
                        }
                }
        }
 }
 
-typedef struct
+typedef struct nearlight_s
 {
        vec3_t origin;
        //vec_t cullradius2;
@@ -430,7 +238,7 @@ int R_LightModel(float *ambient4f, float *diffusecolor, float *diffusenormal, co
        for (i = 0;i < ent->numentlights;i++)
        {
                sl = r_refdef.worldmodel->brushq1.lights + ent->entlights[i];
-               stylescale = d_lightstylevalue[sl->style] * (1.0f / 65536.0f);
+               stylescale = r_refdef.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);
@@ -477,12 +285,12 @@ int R_LightModel(float *ambient4f, float *diffusecolor, float *diffusenormal, co
                        nl->offset = sl->distbias;
                }
        }
-       if (!r_rtdlight || (ent->flags & RENDER_TRANSPARENT))
+       if (ent->flags & RENDER_TRANSPARENT)
        {
                // FIXME: this dlighting doesn't look like rtlights
-               for (i = 0;i < r_numdlights;i++)
+               for (i = 0;i < r_refdef.numlights;i++)
                {
-                       light = r_dlight + i;
+                       light = r_refdef.lights[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];
@@ -490,7 +298,7 @@ int R_LightModel(float *ambient4f, float *diffusecolor, float *diffusenormal, co
                        VectorSubtract (v, light->origin, v);
                        if (DotProduct(v, v) < light->rtlight.lightmap_cullradius2)
                        {
-                               if (CL_TraceLine(ent->origin, light->origin, NULL, NULL, false, NULL, SUPERCONTENTS_SOLID) != 1)
+                               if (CL_TraceBox(ent->origin, vec3_origin, vec3_origin, light->origin, false, NULL, SUPERCONTENTS_SOLID, false).fraction != 1)
                                        continue;
                                VectorSubtract (ent->origin, light->origin, v);
                                f = ((1.0f / (DotProduct(v, v) + LIGHTOFFSET)) - light->rtlight.lightmap_subtract);
@@ -531,7 +339,7 @@ int R_LightModel(float *ambient4f, float *diffusecolor, float *diffusenormal, co
                                                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
+                                               , rd - cl_dlights, 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]
@@ -629,7 +437,7 @@ void R_UpdateEntLights(entity_render_t *ent)
                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)
+                               if (CL_TraceBox(ent->origin, vec3_origin, vec3_origin, sl->origin, false, NULL, SUPERCONTENTS_SOLID, false).fraction == 1)
                                        ent->entlights[ent->numentlights++] = i;
        }
        ent->entlightsframe = r_framecount;