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Draw water edges in a separate pass. This reduces the number of depth state changes 

needed to draw the map view with water.


git-svn-id: svn+ssh://svn.gna.org/svn/warzone/trunk@2917 4a71c877-e1ca-e34f-864e-861f7616d084
master
Per Inge Mathisen 2007-12-01 11:45:34 +00:00
parent 131cb1bf6f
commit d36f393179
1 changed files with 16 additions and 10 deletions
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26
src/display3d.c
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@ -798,6 +798,7 @@ static void drawTiles(iView *camera, iView *player)
{ {
//get distance of furthest corner //get distance of furthest corner
int zMax = MAX(tileScreenInfo[i][j].screen.z, tileScreenInfo[i+1][j].screen.z); int zMax = MAX(tileScreenInfo[i][j].screen.z, tileScreenInfo[i+1][j].screen.z);
zMax = MAX(zMax, tileScreenInfo[i + 1][j + 1].screen.z); zMax = MAX(zMax, tileScreenInfo[i + 1][j + 1].screen.z);
zMax = MAX(zMax, tileScreenInfo[i][j + 1].screen.z); zMax = MAX(zMax, tileScreenInfo[i][j + 1].screen.z);
@ -808,16 +809,21 @@ static void drawTiles(iView *camera, iView *player)
} }
drawTerrainTile(i, j, FALSE); drawTerrainTile(i, j, FALSE);
}
// check if we need to draw a water edge }
if (tileScreenInfo[i][j].bWater }
&& TileNumber_tile(mapTile(playerXTile + j, playerZTile + i)->texture) != WATER_TILE) pie_SetDepthOffset(-2.0);
{ for (i = 0; i < MIN(visibleTiles.y, mapHeight); i++)
// the edge is in front of the water (which is drawn at z-index -1) {
pie_SetDepthOffset(-2.0); for (j = 0; j < MIN(visibleTiles.x, mapWidth); j++)
drawTerrainTile(i, j, TRUE); {
pie_SetDepthOffset(0.0); // check if we need to draw a water edge
} if (tileScreenInfo[i][j].drawInfo == TRUE
&& tileScreenInfo[i][j].bWater
&& TileNumber_tile(mapTile(playerXTile + j, playerZTile + i)->texture) != WATER_TILE)
{
// the edge is in front of the water (which is drawn at z-index -1)
drawTerrainTile(i, j, TRUE);
} }
} }
} }