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Fix scaling of transparencies in textures

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Mike Primm 2011-10-30 11:16:06 +08:00 • committed by mikeprimm
parent 2012c63921
commit 12a8fe407e
1 changed files with 14 additions and 14 deletions
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28
src/main/java/org/dynmap/hdmap/TexturePack.java
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@ -683,18 +683,18 @@ public class TexturePack {
if(wy == 0) continue; if(wy == 0) continue;
/* Accumulate */ /* Accumulate */
c.setARGB(src_argb[(ind_y+yy)*nativeres + ind_x + xx]); c.setARGB(src_argb[(ind_y+yy)*nativeres + ind_x + xx]);
int a = c.getAlpha(); int w = wx * wy;
accum_red += c.getRed() * a * wx * wy; accum_red += c.getRed() * w;
accum_green += c.getGreen() * a* wx * wy; accum_green += c.getGreen() * w;
accum_blue += c.getBlue() * a * wx * wy; accum_blue += c.getBlue() * w;
accum_alpha += a * wx * wy; accum_alpha += c.getAlpha() * w;
} }
} }
int newalpha = accum_alpha / (nativeres*nativeres); int newalpha = accum_alpha / (nativeres*nativeres);
if(newalpha == 0) newalpha = 1; if(newalpha == 0) newalpha = 1;
/* Generate weighted compnents into color */ /* Generate weighted compnents into color */
c.setRGBA(accum_red / (nativeres*nativeres*newalpha), accum_green / (nativeres*nativeres*newalpha), c.setRGBA(accum_red / (nativeres*nativeres), accum_green / (nativeres*nativeres),
accum_blue / (nativeres*nativeres*newalpha), accum_alpha / (nativeres*nativeres)); accum_blue / (nativeres*nativeres), accum_alpha / (nativeres*nativeres));
dest_argb[(y*res) + x] = c.getARGB(); dest_argb[(y*res) + x] = c.getARGB();
} }
} }
@ -735,11 +735,11 @@ public class TexturePack {
for(int yy = 0; yy < 2; yy++) { for(int yy = 0; yy < 2; yy++) {
int wy = (yy==0)?wgt_y:(res-wgt_y); int wy = (yy==0)?wgt_y:(res-wgt_y);
if(wy == 0) continue; if(wy == 0) continue;
int a = c.getAlpha(); int w = wx * wy;
accum_red[(ind_y+yy)*res + (ind_x+xx)] += c.getRed() * a * wx * wy; accum_red[(ind_y+yy)*res + (ind_x+xx)] += c.getRed() * w;
accum_green[(ind_y+yy)*res + (ind_x+xx)] += c.getGreen() * a * wx * wy; accum_green[(ind_y+yy)*res + (ind_x+xx)] += c.getGreen() * w;
accum_blue[(ind_y+yy)*res + (ind_x+xx)] += c.getBlue() * a * wx * wy; accum_blue[(ind_y+yy)*res + (ind_x+xx)] += c.getBlue() * w;
accum_alpha[(ind_y+yy)*res + (ind_x+xx)] += a * wx * wy; accum_alpha[(ind_y+yy)*res + (ind_x+xx)] += c.getAlpha() * w;
} }
} }
} }
@ -750,8 +750,8 @@ public class TexturePack {
int off = (y*res) + x; int off = (y*res) + x;
int aa = accum_alpha[off] / (nativeres*nativeres); int aa = accum_alpha[off] / (nativeres*nativeres);
if(aa == 0) aa = 1; if(aa == 0) aa = 1;
c.setRGBA(accum_red[off]/(aa*nativeres*nativeres), accum_green[off]/(aa*nativeres*nativeres), c.setRGBA(accum_red[off]/(nativeres*nativeres), accum_green[off]/(nativeres*nativeres),
accum_blue[off]/(aa*nativeres*nativeres), accum_alpha[off] / (nativeres*nativeres)); accum_blue[off]/(nativeres*nativeres), accum_alpha[off] / (nativeres*nativeres));
dest_argb[y*res + x] = c.getARGB(); dest_argb[y*res + x] = c.getARGB();
} }
} }