]> de.git.xonotic.org Git - xonotic/darkplaces.git/blobdiff - r_light.c
merged q1bsp and q3bsp surface rendering
[xonotic/darkplaces.git] / r_light.c
index c5ec8b2a9a0f2eaed044cb35ee6b875ee5da67c9..4e7d51fa5b44ae5c8aac96ca3909c2a483010c85 100644 (file)
--- a/r_light.c
+++ b/r_light.c
@@ -29,7 +29,7 @@ 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", "1"};
+cvar_t gl_flashblend = {CVAR_SAVE, "gl_flashblend", "0"};
 
 static rtexture_t *lightcorona;
 static rtexturepool_t *lighttexturepool;
@@ -86,11 +86,13 @@ R_UpdateLights
 */
 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);
+       frac = (cl.time * 10) - i;
        for (j = 0;j < MAX_LIGHTSTYLES;j++)
        {
                if (!cl_lightstyle || !cl_lightstyle[j].length)
@@ -99,9 +101,10 @@ void R_UpdateLights(void)
                        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;
@@ -125,31 +128,29 @@ void R_UpdateLights(void)
 
 void R_DrawCoronas(void)
 {
-       int i, lnum;
+       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);
-       if (r_shadow_realtime_world.integer)
+       flag = r_rtworld ? LIGHTFLAG_REALTIMEMODE : LIGHTFLAG_NORMALMODE;
+       for (lnum = 0, light = r_shadow_worldlightchain;light;light = light->next, lnum++)
        {
-               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->rtlight.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 * 0.25f;
-                               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);
-                       }
+                       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->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)
+               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->radius * 0.25f;
+                       scale = light->rtlight.radius * light->rtlight.coronasizescale;
                        if (gl_flashblend.integer)
                        {
                                cscale *= 4.0f;
@@ -160,6 +161,7 @@ void R_DrawCoronas(void)
        }
 }
 
+#ifdef LHREMOVESOON
 /*
 =============================================================================
 
@@ -176,14 +178,14 @@ static qbyte lightpvs[(MAX_MAP_LEAFS+7)>>3];
 R_MarkLights
 =============
 */
-static void R_RecursiveMarkLights(entity_render_t *ent, vec3_t lightorigin, dlight_t *light, int bit, int bitindex, mnode_t *node, qbyte *pvs, int pvsbits)
+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->contents >= 0)
+       while(node->plane)
        {
                dist = PlaneDiff(lightorigin, node->plane);
                if (dist > light->rtlight.lightmap_cullradius)
@@ -191,7 +193,7 @@ static void R_RecursiveMarkLights(entity_render_t *ent, vec3_t lightorigin, dlig
                else
                {
                        if (dist >= -light->rtlight.lightmap_cullradius)
-                               R_RecursiveMarkLights(ent, lightorigin, light, bit, bitindex, node->children[0], pvs, pvsbits);
+                               R_RecursiveMarkLights(ent, lightorigin, lightmins, lightmaxs, light, bit, bitindex, node->children[0], pvs, pvsbits);
                        node = node->children[1];
                }
        }
@@ -199,80 +201,111 @@ static void R_RecursiveMarkLights(entity_render_t *ent, vec3_t lightorigin, dlig
        // check if leaf is visible according to pvs
        leaf = (mleaf_t *)node;
        i = leaf->clusterindex;
-       if (leaf->nummarksurfaces && (i >= pvsbits || CHECKPVSBIT(pvs, i)))
+       if (leaf->numleafsurfaces && (i >= pvsbits || CHECKPVSBIT(pvs, i)))
        {
-               int *surfacepvsframes, d, impacts, impactt;
-               float sdist, maxdist, dist2, impact[3];
-               msurface_t *surf;
+               int d, impacts, impactt;
+               float sdist, maxdist, dist2, impact[3], planenormal[3], planedist;
+               msurface_t *surface;
                // mark the polygons
                maxdist = light->rtlight.lightmap_cullradius2;
-               surfacepvsframes = ent->model->brushq1.surfacepvsframes;
-               for (i = 0;i < leaf->nummarksurfaces;i++)
+               for (i = 0;i < leaf->numleafsurfaces;i++)
                {
-                       if (surfacepvsframes[leaf->firstmarksurface[i]] != ent->model->brushq1.pvsframecount)
+                       // note: this is only called on the worldmodel
+                       if (r_worldsurfacevisible[leaf->firstleafsurface[i]])
                                continue;
-                       surf = ent->model->brushq1.surfaces + leaf->firstmarksurface[i];
-                       dist = sdist = PlaneDiff(lightorigin, surf->plane);
-                       if (surf->flags & SURF_PLANEBACK)
-                               dist = -dist;
-
-                       if (dist < -0.25f && !(surf->flags & SURF_LIGHTBOTHSIDES))
+                       surface = ent->model->brush.data_surfaces + leaf->firstleafsurface[i];
+                       if (!BoxesOverlap(surface->mins, surface->maxs, lightmins, lightmaxs))
                                continue;
 
-                       dist2 = dist * dist;
-                       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;
 
-                       VectorCopy(lightorigin, impact);
-                       if (surf->plane->type >= 3)
-                               VectorMA(impact, -sdist, surf->plane->normal, impact);
-                       else
-                               impact[surf->plane->type] -= sdist;
+                               if (dist < -0.25f && !(surface->texture->currentmaterialflags & MATERIALFLAG_LIGHTBOTHSIDES))
+                                       continue;
 
-                       impacts = DotProduct (impact, surf->texinfo->vecs[0]) + surf->texinfo->vecs[0][3] - surf->texturemins[0];
+                               dist2 = dist * dist;
+                               if (dist2 >= maxdist)
+                                       continue;
 
-                       d = bound(0, impacts, surf->extents[0] + 16) - impacts;
-                       dist2 += d * d;
-                       if (dist2 > maxdist)
-                               continue;
+                               VectorCopy(lightorigin, impact);
+                               VectorMA(impact, -sdist, planenormal, impact);
 
-                       impactt = DotProduct (impact, surf->texinfo->vecs[1]) + surf->texinfo->vecs[1][3] - surf->texturemins[1];
+                               impacts = DotProduct (impact, surface->texinfo->vecs[0]) + surface->texinfo->vecs[0][3] - surface->texturemins[0];
 
-                       d = bound(0, impactt, surf->extents[1] + 16) - impactt;
-                       dist2 += d * d;
-                       if (dist2 > maxdist)
-                               continue;
+                               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 (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;
-                               surf->cached_dlight = true;
+                               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;
                }
        }
 }
 
 void R_MarkLights(entity_render_t *ent)
 {
-       int i, bit, bitindex;
+       int i, j, bit, bitindex;
        dlight_t *light;
-       vec3_t lightorigin;
-       if (!gl_flashblend.integer && r_dynamic.integer && ent->model && ent->model->brushq1.num_leafs)
+       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);
-                       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, light, bit, bitindex, ent->model->brushq1.nodes + ent->model->brushq1.hulls[0].firstclipnode, lightpvs, min(lightpvsbytes * 8, ent->model->brush.num_pvsclusters));
+                       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
 
 /*
 =============================================================================
@@ -287,24 +320,24 @@ void R_CompleteLightPoint(vec3_t ambientcolor, vec3_t diffusecolor, vec3_t diffu
        VectorClear(diffusecolor);
        VectorClear(diffusenormal);
 
-       if (!r_fullbright.integer && cl.worldmodel && cl.worldmodel->brush.LightPoint)
+       if (!r_fullbright.integer && r_refdef.worldmodel && r_refdef.worldmodel->brush.LightPoint)
        {
                ambientcolor[0] = ambientcolor[1] = ambientcolor[2] = r_ambient.value * (2.0f / 128.0f);
-               cl.worldmodel->brush.LightPoint(cl.worldmodel, p, ambientcolor, diffusecolor, diffusenormal);
+               r_refdef.worldmodel->brush.LightPoint(r_refdef.worldmodel, p, ambientcolor, diffusecolor, diffusenormal);
        }
        else
                VectorSet(ambientcolor, 1, 1, 1);
 
        // FIXME: this .lights related stuff needs to be ported into the Mod_Q1BSP code
-       if (cl.worldmodel->brushq1.numlights)
+       if (r_refdef.worldmodel->brushq1.numlights)
        {
                int i;
                vec3_t v;
                float f;
                mlight_t *sl;
-               for (i = 0;i < cl.worldmodel->brushq1.numlights;i++)
+               for (i = 0;i < r_refdef.worldmodel->brushq1.numlights;i++)
                {
-                       sl = cl.worldmodel->brushq1.lights + i;
+                       sl = r_refdef.worldmodel->brushq1.lights + i;
                        if (d_lightstylevalue[sl->style] > 0)
                        {
                                VectorSubtract (p, sl->origin, v);
@@ -369,19 +402,19 @@ int R_LightModel(float *ambient4f, float *diffusecolor, float *diffusenormal, co
        ambient4f[0] = ambient4f[1] = ambient4f[2] = r_ambient.value * (2.0f / 128.0f);
        VectorClear(diffusecolor);
        VectorClear(diffusenormal);
-       if (r_fullbright.integer || (ent->effects & EF_FULLBRIGHT))
+       if (!(ent->flags & RENDER_LIGHT))
        {
                // highly rare
                VectorSet(ambient4f, 1, 1, 1);
                maxnearlights = 0;
        }
-       else if (r_shadow_realtime_world.integer && r_shadow_realtime_world_lightmaps.value <= 0)
+       else if (r_lightmapintensity <= 0 && !(ent->flags & RENDER_TRANSPARENT))
                maxnearlights = 0;
        else
        {
-               if (cl.worldmodel && cl.worldmodel->brush.LightPoint)
+               if (r_refdef.worldmodel && r_refdef.worldmodel->brush.LightPoint)
                {
-                       cl.worldmodel->brush.LightPoint(cl.worldmodel, ent->origin, ambient4f, diffusecolor, tempdiffusenormal);
+                       r_refdef.worldmodel->brush.LightPoint(r_refdef.worldmodel, ent->origin, ambient4f, diffusecolor, tempdiffusenormal);
                        Matrix4x4_Transform3x3(&ent->inversematrix, tempdiffusenormal, diffusenormal);
                        VectorNormalize(diffusenormal);
                }
@@ -396,7 +429,7 @@ int R_LightModel(float *ambient4f, float *diffusecolor, float *diffusenormal, co
        nl = &nearlight[0];
        for (i = 0;i < ent->numentlights;i++)
        {
-               sl = cl.worldmodel->brushq1.lights + ent->entlights[i];
+               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;
@@ -444,8 +477,9 @@ int R_LightModel(float *ambient4f, float *diffusecolor, float *diffusenormal, co
                        nl->offset = sl->distbias;
                }
        }
-       if (!r_shadow_realtime_dlight.integer)
+       if (!r_rtdlight || (ent->flags & RENDER_TRANSPARENT))
        {
+               // FIXME: this dlighting doesn't look like rtlights
                for (i = 0;i < r_numdlights;i++)
                {
                        light = r_dlight + i;
@@ -555,7 +589,7 @@ void R_LightModel_CalcVertexColors(const float *ambientcolor4f, const float *dif
                // pretty good lighting
                for (j = 0, nl = &nearlight[0];j < nearlights;j++, nl++)
                {
-                       VectorSubtract(vertex3f, nl->origin, v);
+                       VectorSubtract(nl->origin, vertex3f, v);
                        // first eliminate negative lighting (back side)
                        dot = DotProduct(normal3f, v);
                        if (dot > 0)
@@ -585,7 +619,7 @@ void R_UpdateEntLights(entity_render_t *ent)
        int i;
        const mlight_t *sl;
        vec3_t v;
-       if (r_shadow_realtime_world.integer && r_shadow_realtime_world_lightmaps.value <= 0)
+       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))
@@ -593,8 +627,8 @@ void R_UpdateEntLights(entity_render_t *ent)
                ent->entlightstime = realtime + 0.1;
                VectorCopy(ent->origin, ent->entlightsorigin);
                ent->numentlights = 0;
-               if (cl.worldmodel)
-                       for (i = 0, sl = cl.worldmodel->brushq1.lights;i < cl.worldmodel->brushq1.numlights && ent->numentlights < MAXENTLIGHTS;i++, sl++)
+               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;
        }