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No longer checking portals behind player

Thomas Buck 9 年前
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902128652c
共有 2 个文件被更改,包括 28 次插入19 次删除
  1. 14
    0
      ChangeLog.md
  2. 14
    19
      src/Render.cpp

+ 14
- 0
ChangeLog.md 查看文件

@@ -2,6 +2,20 @@
2 2
 
3 3
 ## OpenRaider (0.1.4) xythobuz <xythobuz@xythobuz.de>
4 4
 
5
+    [ 20150429 ]
6
+    * Fixed the new BoundingBox rendering approach
7
+    * Fixed portal rendering method, no longer checking portals behind player.
8
+
9
+    [ 20150424 ]
10
+    * Imgui update
11
+
12
+    [ 20150417 ]
13
+    * Updated imgui
14
+    * First try at scissoring rendering through room portals.
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+
16
+    [ 20150413 ]
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+    * Now trying to cache all bounding box vertices, drawing all at end of frame.
18
+
5 19
     [ 20150408 ]
6 20
     * Now checking for errors after every OpenGL call.
7 21
     * Slightly tweaked portal visibility checks.

+ 14
- 19
src/Render.cpp 查看文件

@@ -133,16 +133,10 @@ void Render::buildRoomList(glm::mat4 VP, int room, glm::vec2 min, glm::vec2 max)
133 133
             auto& r = World::getRoom(portal.getAdjoiningRoom());
134 134
 
135 135
             // Calculate the 2D screen-space bounding box of this portal
136
-            glm::vec3 newMin, newMax;
136
+            glm::vec4 newMin, newMax;
137 137
             for (int c = 0; c < 4; c++) {
138 138
                 glm::vec3 port = portal.getVertex(c);
139
-                glm::vec4 result = VP * glm::vec4(port, 1.0f);
140
-                glm::vec3 vert = glm::vec3(result) / result.w;
141
-
142
-                ImGui::Text("%.2f %.2f %.2f", port.x, port.y, port.z);
143
-                ImGui::Text("%.2f %.2f %.2f %.2f", result.x, result.y, result.z, result.w);
144
-                ImGui::Text("%.2f %.2f %.2f", vert.x, vert.y, vert.z);
145
-                ImGui::Text("----");
139
+                glm::vec4 vert = VP * glm::vec4(port, 1.0f);
146 140
 
147 141
                 if (c == 0) {
148 142
                     newMin = vert;
@@ -154,23 +148,24 @@ void Render::buildRoomList(glm::mat4 VP, int room, glm::vec2 min, glm::vec2 max)
154 148
                         newMin.y = vert.y;
155 149
                     if (vert.z < newMin.z)
156 150
                         newMin.z = vert.z;
151
+                    if (vert.w < newMin.w)
152
+                        newMin.w = vert.w;
157 153
                     if (vert.x > newMax.x)
158 154
                         newMax.x = vert.x;
159 155
                     if (vert.y > newMax.y)
160 156
                         newMax.y = vert.y;
161 157
                     if (vert.z > newMax.z)
162 158
                         newMax.z = vert.z;
159
+                    if (vert.w > newMax.w)
160
+                        newMax.w = vert.w;
163 161
                 }
164 162
             }
165 163
 
166
-            //ImGui::Text("%.2f %.2f %.2f", newMin.x, newMin.y, newMin.z);
167
-            //ImGui::Text("%.2f %.2f %.2f", newMax.x, newMax.y, newMax.z);
168
-            //ImGui::Text("----");
169
-
170
-            //! \fixme Currently also checking behind player, because Z is always 1.0f?!
171
-            //if ((newMin.z > 0.0f) || (newMin.z < -1.0f) || (newMax.z > 0.0f) || (newMax.z < -1.0f)) {
172
-            //    continue;
173
-            //}
164
+            // Check if the portal lies behind the player
165
+            if (!((newMin.z <= newMin.w) && (newMin.z >= -newMin.w)
166
+                && (newMax.z <= newMax.w) && (newMax.z >= -newMax.w))) {
167
+                continue;
168
+            }
174 169
 
175 170
             //! \fixme Need to check portal normal, only render if it points in our direction
176 171
             //if (!normalFacingUs) {
@@ -178,8 +173,8 @@ void Render::buildRoomList(glm::mat4 VP, int room, glm::vec2 min, glm::vec2 max)
178 173
             //}
179 174
 
180 175
             // Check if the portal intersects the portal leading into this room
181
-            if (!((min.x < newMax.x) && (max.x > newMin.x)
182
-                && (min.y < newMax.y) && (max.y > newMin.y))) {
176
+            if (!((min.x < (newMax.x / newMax.w)) && (max.x > (newMin.x / newMin.w))
177
+                && (min.y < (newMax.y / newMax.w)) && (max.y > (newMin.y / newMin.w)))) {
183 178
                 continue;
184 179
             }
185 180
 
@@ -199,7 +194,7 @@ void Render::buildRoomList(glm::mat4 VP, int room, glm::vec2 min, glm::vec2 max)
199 194
 
200 195
             // ...only render it if it is not
201 196
             if (!found) {
202
-                buildRoomList(VP, portal.getAdjoiningRoom(), glm::vec2(newMin), glm::vec2(newMax));
197
+                buildRoomList(VP, portal.getAdjoiningRoom(), glm::vec2(newMin) / newMin.w, glm::vec2(newMax) / newMax.w);
203 198
             }
204 199
         }
205 200
     }

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