now checks if worldmodel is NULL again, some comment cleanups and clarifications

git-svn-id: svn://svn.icculus.org/twilight/trunk/darkplaces@2687 d7cf8633-e32d-0410-b094-e92efae38249

diff --git a/gl_rmain.c b/gl_rmain.c
index 902a06de6e9a80eae1287c0932b62901bf0f7fa1..8898c378b6f06bcea476eb47450ccd542c27a4d5 100644 (file)
--- a/gl_rmain.c
+++ b/gl_rmain.c
@@ -383,6 +383,8 @@ int PVS_CullBox(const vec3_t mins, const vec3_t maxs)
 {
        int stackpos, sides;
        mnode_t *node, *stack[4096];
+       if (cl.worldmodel == NULL)
+               return false;
        stackpos = 0;
        stack[stackpos++] = cl.worldmodel->nodes;
        while (stackpos)
@@ -411,6 +413,8 @@ int VIS_CullBox(const vec3_t mins, const vec3_t maxs)
        mnode_t *node, *stack[4096];
        if (R_CullBox(mins, maxs))
                return true;
+       if (cl.worldmodel == NULL)
+               return false;
        stackpos = 0;
        stack[stackpos++] = cl.worldmodel->nodes;
        while (stackpos)
@@ -446,6 +450,8 @@ int PVS_CullSphere(const vec3_t origin, vec_t radius)
        int stackpos;
        mnode_t *node, *stack[4096];
        float dist;
+       if (cl.worldmodel == NULL)
+               return false;
        stackpos = 0;
        stack[stackpos++] = cl.worldmodel->nodes;
        while (stackpos)
@@ -475,6 +481,8 @@ int VIS_CullSphere(const vec3_t origin, vec_t radius)
        float dist;
        if (R_CullSphere(origin, radius))
                return true;
+       if (cl.worldmodel == NULL)
+               return false;
        stackpos = 0;
        stack[stackpos++] = cl.worldmodel->nodes;
        while (stackpos)
@@ -647,6 +655,8 @@ int Light_CullBox(const vec3_t mins, const vec3_t maxs)
 {
        int stackpos, sides;
        mnode_t *node, *stack[4096];
+       if (cl.worldmodel == NULL)
+               return false;
        stackpos = 0;
        stack[stackpos++] = cl.worldmodel->nodes;
        while (stackpos)
@@ -675,6 +685,8 @@ int LightAndVis_CullBox(const vec3_t mins, const vec3_t maxs)
        mnode_t *node, *stack[4096];
        if (R_CullBox(mins, maxs))
                return true;
+       if (cl.worldmodel == NULL)
+               return false;
        stackpos = 0;
        stack[stackpos++] = cl.worldmodel->nodes;
        while (stackpos)
@@ -859,41 +871,49 @@ void R_ShadowVolumeLighting (int visiblevolumes)
                if (r_shadow_debuglight.integer >= 0 && lnum != r_shadow_debuglight.integer)
                        continue;
 
-               for (i = 0;i < wl->numleafs;i++)
-                       if (wl->leafs[i]->visframe == r_framecount)
-                               break;
-               if (i == wl->numleafs)
-                       continue;
-               leaf = wl->leafs[i++];
-               VectorCopy(leaf->mins, clipmins);
-               VectorCopy(leaf->maxs, clipmaxs);
-               for (i++;i < wl->numleafs;i++)
+               if (cl.worldmodel != NULL)
                {
-                       leaf = wl->leafs[i];
-                       if (leaf->visframe == r_framecount)
+                       for (i = 0;i < wl->numleafs;i++)
+                               if (wl->leafs[i]->visframe == r_framecount)
+                                       break;
+                       if (i == wl->numleafs)
+                               continue;
+                       leaf = wl->leafs[i++];
+                       VectorCopy(leaf->mins, clipmins);
+                       VectorCopy(leaf->maxs, clipmaxs);
+                       for (i++;i < wl->numleafs;i++)
                        {
-                               if (clipmins[0] > leaf->mins[0]) clipmins[0] = leaf->mins[0];
-                               if (clipmaxs[0] < leaf->maxs[0]) clipmaxs[0] = leaf->maxs[0];
-                               if (clipmins[1] > leaf->mins[1]) clipmins[1] = leaf->mins[1];
-                               if (clipmaxs[1] < leaf->maxs[1]) clipmaxs[1] = leaf->maxs[1];
-                               if (clipmins[2] > leaf->mins[2]) clipmins[2] = leaf->mins[2];
-                               if (clipmaxs[2] < leaf->maxs[2]) clipmaxs[2] = leaf->maxs[2];
+                               leaf = wl->leafs[i];
+                               if (leaf->visframe == r_framecount)
+                               {
+                                       if (clipmins[0] > leaf->mins[0]) clipmins[0] = leaf->mins[0];
+                                       if (clipmaxs[0] < leaf->maxs[0]) clipmaxs[0] = leaf->maxs[0];
+                                       if (clipmins[1] > leaf->mins[1]) clipmins[1] = leaf->mins[1];
+                                       if (clipmaxs[1] < leaf->maxs[1]) clipmaxs[1] = leaf->maxs[1];
+                                       if (clipmins[2] > leaf->mins[2]) clipmins[2] = leaf->mins[2];
+                                       if (clipmaxs[2] < leaf->maxs[2]) clipmaxs[2] = leaf->maxs[2];
+                               }
                        }
+                       if (clipmins[0] < wl->mins[0]) clipmins[0] = wl->mins[0];
+                       if (clipmins[1] < wl->mins[1]) clipmins[1] = wl->mins[1];
+                       if (clipmins[2] < wl->mins[2]) clipmins[2] = wl->mins[2];
+                       if (clipmaxs[0] > wl->maxs[0]) clipmaxs[0] = wl->maxs[0];
+                       if (clipmaxs[1] > wl->maxs[1]) clipmaxs[1] = wl->maxs[1];
+                       if (clipmaxs[2] > wl->maxs[2]) clipmaxs[2] = wl->maxs[2];
+               }
+               else
+               {
+                       VectorCopy(wl->mins, clipmins);
+                       VectorCopy(wl->maxs, clipmaxs);
                }
-               if (clipmins[0] < wl->mins[0]) clipmins[0] = wl->mins[0];
-               if (clipmins[1] < wl->mins[1]) clipmins[1] = wl->mins[1];
-               if (clipmins[2] < wl->mins[2]) clipmins[2] = wl->mins[2];
-               if (clipmaxs[0] > wl->maxs[0]) clipmaxs[0] = wl->maxs[0];
-               if (clipmaxs[1] > wl->maxs[1]) clipmaxs[1] = wl->maxs[1];
-               if (clipmaxs[2] > wl->maxs[2]) clipmaxs[2] = wl->maxs[2];
 
                if (R_Shadow_ScissorForBBoxAndSphere(clipmins, clipmaxs, wl->origin, wl->cullradius))
                        continue;
 
                // mark the leafs we care about so only things in those leafs will matter
-               for (i = 0;i < wl->numleafs;i++)
-                       wl->leafs[i]->worldnodeframe = shadowframecount;
-
+               if (cl.worldmodel != NULL)
+                       for (i = 0;i < wl->numleafs;i++)
+                               wl->leafs[i]->worldnodeframe = shadowframecount;
 
                f = d_lightstylevalue[wl->style] * (1.0f / 256.0f);
                VectorScale(wl->light, f, lightcolor);
@@ -1083,26 +1103,29 @@ void R_ShadowVolumeLighting (int visiblevolumes)
 
 static void R_SetFrustum (void)
 {
-       int i;
-
        // LordHavoc: note to all quake engine coders, the special case for 90
        // degrees assumed a square view (wrong), so I removed it, Quake2 has it
        // disabled as well.
+
        // rotate VPN right by FOV_X/2 degrees
        RotatePointAroundVector( frustum[0].normal, vup, vpn, -(90-r_refdef.fov_x / 2 ) );
+       frustum[0].dist = DotProduct (r_origin, frustum[0].normal);
+       PlaneClassify(&frustum[0]);
+
        // rotate VPN left by FOV_X/2 degrees
        RotatePointAroundVector( frustum[1].normal, vup, vpn, 90-r_refdef.fov_x / 2 );
+       frustum[1].dist = DotProduct (r_origin, frustum[1].normal);
+       PlaneClassify(&frustum[1]);
+
        // rotate VPN up by FOV_X/2 degrees
        RotatePointAroundVector( frustum[2].normal, vright, vpn, 90-r_refdef.fov_y / 2 );
+       frustum[2].dist = DotProduct (r_origin, frustum[2].normal);
+       PlaneClassify(&frustum[2]);
+
        // rotate VPN down by FOV_X/2 degrees
        RotatePointAroundVector( frustum[3].normal, vright, vpn, -( 90 - r_refdef.fov_y / 2 ) );
-
-       for (i = 0;i < 4;i++)
-       {
-               frustum[i].type = PLANE_ANYZ;
-               frustum[i].dist = DotProduct (r_origin, frustum[i].normal);
-               PlaneClassify(&frustum[i]);
-       }
+       frustum[3].dist = DotProduct (r_origin, frustum[3].normal);
+       PlaneClassify(&frustum[3]);
 }
 
 /*
@@ -1234,8 +1257,7 @@ void R_RenderView (void)
        R_Mesh_Start();
        R_MeshQueue_BeginScene();
 
-       if (r_shadow_lightingmode)
-               R_Shadow_UpdateWorldLightSelection();
+       R_Shadow_UpdateWorldLightSelection();
 
        if (R_DrawBrushModelsSky())
                R_TimeReport("bmodelsky");