]> de.git.xonotic.org Git - xonotic/darkplaces.git/blobdiff - portals.c
got rid of node->contents, leaf->contents kept (only needed temporarily during loadin...
[xonotic/darkplaces.git] / portals.c
index 339fd80239a2a6ebb6885697499f68ade61b5689..cf47208280b7daebda8c59b916c91483c6f0c553 100644 (file)
--- a/portals.c
+++ b/portals.c
@@ -154,7 +154,7 @@ void Portal_PolygonRecursiveMarkLeafs(mnode_t *node, float *polypoints, int nump
        float *p;
 
 loc0:
-       if (node->contents < 0)
+       if (!node->plane)
        {
                ((mleaf_t *)node)->portalmarkid = portal_markid;
                return;
@@ -193,9 +193,9 @@ int Portal_CheckPolygon(model_t *model, vec3_t eye, float *polypoints, int numpo
        portal_markid++;
 
        Mod_CheckLoaded(model);
-       Portal_PolygonRecursiveMarkLeafs(model->nodes, polypoints, numpoints);
+       Portal_PolygonRecursiveMarkLeafs(model->brushq1.nodes, polypoints, numpoints);
 
-       eyeleaf = Mod_PointInLeaf(eye, model);
+       eyeleaf = model->brushq1.PointInLeaf(model, eye);
 
        // find the center by averaging
        VectorClear(center);
@@ -323,24 +323,27 @@ typedef struct portalrecursioninfo_s
 {
        int exact;
        int numfrustumplanes;
-       float nradius;
+       vec3_t boxmins;
+       vec3_t boxmaxs;
        qbyte *surfacemark;
        qbyte *leafmark;
        model_t *model;
        vec3_t eye;
+       float *updateleafsmins;
+       float *updateleafsmaxs;
 }
 portalrecursioninfo_t;
 
 void Portal_RecursiveFlow_ExactMarkSurfaces(portalrecursioninfo_t *info, int *mark, int nummarksurfaces, int firstclipplane, int numclipplanes)
 {
        int i, j, *elements;
+       vec3_t trimins, trimaxs;
        msurface_t *surf;
-       surfmesh_t *surfmesh;
        for (i = 0;i < nummarksurfaces;i++, mark++)
        {
                if (!info->surfacemark[*mark])
                {
-                       surf = info->model->surfaces + *mark;
+                       surf = info->model->brushq1.surfaces + *mark;
                        if (surf->poly_numverts)
                        {
                                if (surf->flags & SURF_PLANEBACK)
@@ -358,21 +361,25 @@ void Portal_RecursiveFlow_ExactMarkSurfaces(portalrecursioninfo_t *info, int *ma
                        }
                        else
                        {
-                               for (surfmesh = surf->mesh;surfmesh;surfmesh = surfmesh->chain)
+                               for (j = 0, elements = surf->mesh.data_element3i;j < surf->mesh.num_triangles;j++, elements += 3)
                                {
-                                       for (j = 0, elements = surfmesh->element3i;j < surfmesh->numtriangles;j++, elements += 3)
+                                       VectorCopy((surf->mesh.data_vertex3f + elements[0] * 3), trianglepoints[0]);
+                                       VectorCopy((surf->mesh.data_vertex3f + elements[1] * 3), trianglepoints[1]);
+                                       VectorCopy((surf->mesh.data_vertex3f + elements[2] * 3), trianglepoints[2]);
+                                       if (PointInfrontOfTriangle(info->eye, trianglepoints[0], trianglepoints[1], trianglepoints[2]))
                                        {
-                                               VectorCopy((surfmesh->vertex3f + elements[0] * 3), trianglepoints[0]);
-                                               VectorCopy((surfmesh->vertex3f + elements[1] * 3), trianglepoints[1]);
-                                               VectorCopy((surfmesh->vertex3f + elements[2] * 3), trianglepoints[2]);
-                                               if (PointInfrontOfTriangle(info->eye, trianglepoints[0], trianglepoints[1], trianglepoints[2])
-                                                && Portal_PortalThroughPortalPlanes(&portalplanes[firstclipplane], numclipplanes, trianglepoints[0], 3, &portaltemppoints2[0][0], 256) >= 3)
-                                                       break;
+                                               trimins[0] = min(trianglepoints[0][0], min(trianglepoints[1][0], trianglepoints[2][0]));
+                                               trimaxs[0] = max(trianglepoints[0][0], max(trianglepoints[1][0], trianglepoints[2][0]));
+                                               trimins[1] = min(trianglepoints[0][1], min(trianglepoints[1][1], trianglepoints[2][1]));
+                                               trimaxs[1] = max(trianglepoints[0][1], max(trianglepoints[1][1], trianglepoints[2][1]));
+                                               trimins[2] = min(trianglepoints[0][2], min(trianglepoints[1][2], trianglepoints[2][2]));
+                                               trimaxs[2] = max(trianglepoints[0][2], max(trianglepoints[1][2], trianglepoints[2][2]));
+                                               if (BoxesOverlap(trimins, trimaxs, info->boxmins, info->boxmaxs))
+                                                       if (Portal_PortalThroughPortalPlanes(&portalplanes[firstclipplane], numclipplanes, trianglepoints[0], 3, &portaltemppoints2[0][0], 256) >= 3)
+                                                               break;
                                        }
-                                       if (j < surfmesh->numtriangles)
-                                               break;
                                }
-                               if (surfmesh == NULL)
+                               if (j == surf->mesh.num_triangles)
                                        continue;
                        }
                        info->surfacemark[*mark] = true;
@@ -388,8 +395,14 @@ void Portal_RecursiveFlow (portalrecursioninfo_t *info, mleaf_t *leaf, int first
        vec3_t center, v1, v2;
        tinyplane_t *newplanes;
 
+       for (i = 0;i < 3;i++)
+       {
+               if (info->updateleafsmins && info->updateleafsmins[i] > leaf->mins[i]) info->updateleafsmins[i] = leaf->mins[i];
+               if (info->updateleafsmaxs && info->updateleafsmaxs[i] < leaf->maxs[i]) info->updateleafsmaxs[i] = leaf->maxs[i];
+       }
+
        if (info->leafmark)
-               info->leafmark[leaf - info->model->leafs] = true;
+               info->leafmark[leaf - info->model->brushq1.data_leafs] = true;
 
        // mark surfaces in leaf that can be seen through portal
        if (leaf->nummarksurfaces && info->surfacemark)
@@ -404,9 +417,9 @@ void Portal_RecursiveFlow (portalrecursioninfo_t *info, mleaf_t *leaf, int first
        // follow portals into other leafs
        for (p = leaf->portals;p;p = p->next)
        {
-               // only flow through portals facing away from the viewer
+               // only flow through portals facing the viewer
                dist = PlaneDiff(info->eye, (&p->plane));
-               if (dist < 0 && dist >= info->nradius)
+               if (dist < 0 && BoxesOverlap(p->past->mins, p->past->maxs, info->boxmins, info->boxmaxs))
                {
                        newpoints = Portal_PortalThroughPortalPlanes(&portalplanes[firstclipplane], numclipplanes, (float *) p->points, p->numpoints, &portaltemppoints2[0][0], 256);
                        if (newpoints < 3)
@@ -425,8 +438,8 @@ void Portal_RecursiveFlow (portalrecursioninfo_t *info, mleaf_t *leaf, int first
                                newplanes = &portalplanes[firstclipplane + numclipplanes];
                                for (prev = newpoints - 1, i = 0;i < newpoints;prev = i, i++)
                                {
-                                       VectorSubtract(info->eye, portaltemppoints2[i], v1);
-                                       VectorSubtract(portaltemppoints2[prev], portaltemppoints2[i], v2);
+                                       VectorSubtract(portaltemppoints2[prev], portaltemppoints2[i], v1);
+                                       VectorSubtract(info->eye, portaltemppoints2[i], v2);
                                        CrossProduct(v1, v2, newplanes[i].normal);
                                        VectorNormalizeFast(newplanes[i].normal);
                                        newplanes[i].dist = DotProduct(info->eye, newplanes[i].normal);
@@ -447,12 +460,7 @@ void Portal_RecursiveFlow (portalrecursioninfo_t *info, mleaf_t *leaf, int first
 
 void Portal_RecursiveFindLeafForFlow(portalrecursioninfo_t *info, mnode_t *node)
 {
-       if (node->contents)
-       {
-               if (node->contents != CONTENTS_SKY && node->contents != CONTENTS_SOLID)
-                       Portal_RecursiveFlow(info, (mleaf_t *)node, 0, info->numfrustumplanes);
-       }
-       else
+       if (node->plane)
        {
                float f = DotProduct(info->eye, node->plane->normal) - node->plane->dist;
                if (f > -0.1)
@@ -460,21 +468,33 @@ void Portal_RecursiveFindLeafForFlow(portalrecursioninfo_t *info, mnode_t *node)
                if (f < 0.1)
                        Portal_RecursiveFindLeafForFlow(info, node->children[1]);
        }
+       else
+       {
+               mleaf_t *leaf = (mleaf_t *)node;
+               if (leaf->portals)
+                       Portal_RecursiveFlow(info, leaf, 0, info->numfrustumplanes);
+       }
 }
 
-void Portal_Visibility(model_t *model, const vec3_t eye, qbyte *leafmark, qbyte *surfacemark, const mplane_t *frustumplanes, int numfrustumplanes, int exact, float radius)
+void Portal_Visibility(model_t *model, const vec3_t eye, qbyte *leafmark, qbyte *surfacemark, const mplane_t *frustumplanes, int numfrustumplanes, int exact, const float *boxmins, const float *boxmaxs, float *updateleafsmins, float *updateleafsmaxs)
 {
        int i;
        portalrecursioninfo_t info;
 
        // if there is no model, it can not block visibility
        if (model == NULL)
-               Host_Error("Portal_Visibility: NULL model\n");
+       {
+               Con_Print("Portal_Visibility: NULL model\n");
+               return;
+       }
 
        Mod_CheckLoaded(model);
 
-       if (model->type != mod_brush)
-               Host_Error("Portal_Visibility: not a brush model\n");
+       if (!model->brushq1.numportals)
+       {
+               Con_Print("Portal_Visibility: not a brush model\n");
+               return;
+       }
 
        // put frustum planes (if any) into tinyplane format at start of buffer
        for (i = 0;i < numfrustumplanes;i++)
@@ -486,15 +506,18 @@ void Portal_Visibility(model_t *model, const vec3_t eye, qbyte *leafmark, qbyte
        ranoutofportalplanes = false;
        ranoutofportals = false;
 
-       info.nradius = -radius;
+       VectorCopy(boxmins, info.boxmins);
+       VectorCopy(boxmaxs, info.boxmaxs);
        info.exact = exact;
        info.surfacemark = surfacemark;
        info.leafmark = leafmark;
        info.model = model;
        VectorCopy(eye, info.eye);
        info.numfrustumplanes = numfrustumplanes;
+       info.updateleafsmins = updateleafsmins;
+       info.updateleafsmaxs = updateleafsmaxs;
 
-       Portal_RecursiveFindLeafForFlow(&info, model->nodes);
+       Portal_RecursiveFindLeafForFlow(&info, model->brushq1.nodes);
 
        if (ranoutofportalplanes)
                Con_Printf("Portal_RecursiveFlow: ran out of %d plane stack when recursing through portals\n", MAXRECURSIVEPORTALPLANES);