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Split lighting and shading - add lightings.txt

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Mike Primm 2011-07-09 01:26:47 -05:00
parent 69baafe597
commit a3c00a1026
14 changed files with 387 additions and 151 deletions
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99
src/main/java/org/dynmap/hdmap/ShadowHDLighting.java Normal file
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package org.dynmap.hdmap;
import static org.dynmap.JSONUtils.s;
import org.dynmap.Color;
import org.dynmap.ConfigurationNode;
import org.dynmap.Log;
import org.json.simple.JSONObject;
public class ShadowHDLighting extends DefaultHDLighting {
protected int shadowscale[]; /* index=skylight level, value = 256 * scaling value */
protected int lightscale[]; /* scale skylight level (light = lightscale[skylight] */
protected boolean night_and_day; /* If true, render both day (prefix+'-day') and night (prefix) tiles */
public ShadowHDLighting(ConfigurationNode configuration) {
super(configuration);
double shadowweight = configuration.getDouble("shadowstrength", 0.0);
if(shadowweight > 0.0) {
shadowscale = new int[16];
shadowscale[15] = 256;
/* Normal brightness weight in MC is a 20% relative dropoff per step */
for(int i = 14; i >= 0; i--) {
double v = shadowscale[i+1] * (1.0 - (0.2 * shadowweight));
shadowscale[i] = (int)v;
if(shadowscale[i] > 256) shadowscale[i] = 256;
if(shadowscale[i] < 0) shadowscale[i] = 0;
}
}
int v = configuration.getInteger("ambientlight", -1);
if((v >= 0) && (v < 15)) {
lightscale = new int[16];
for(int i = 0; i < 16; i++) {
if(i < (15-v))
lightscale[i] = 0;
else
lightscale[i] = i - (15-v);
}
}
night_and_day = configuration.getBoolean("night-and-day", false);
if(night_and_day) {
if(lightscale == null) {
Log.severe("night-and-day in lighting '" + getName() + "' requires ambientlight<15");
night_and_day = false;
}
}
}
/* Apply lighting to given pixel colors (1 outcolor if normal, 2 if night/day) */
public void applyLighting(HDPerspectiveState ps, HDShaderState ss, Color incolor, Color[] outcolor) {
int lightlevel = 15, lightlevel_day = 15;
/* If processing for shadows, use sky light level as base lighting */
if(shadowscale != null) {
lightlevel = lightlevel_day = ps.getSkyLightLevel();
}
/* If ambient light, adjust base lighting for it */
if(lightscale != null)
lightlevel = lightscale[lightlevel];
/* If we're below max, see if emitted light helps */
if((lightlevel < 15) || (lightlevel_day < 15)) {
int emitted = ps.getEmittedLightLevel();
lightlevel = Math.max(emitted, lightlevel);
lightlevel_day = Math.max(emitted, lightlevel_day);
}
/* Figure out our color, with lighting if needed */
outcolor[0].setColor(incolor);
if(lightlevel < 15) {
shadowColor(outcolor[0], lightlevel);
}
if(outcolor.length > 1) {
if(lightlevel_day == lightlevel) {
outcolor[1].setColor(outcolor[0]);
}
else {
outcolor[1].setColor(incolor);
if(lightlevel_day < 15) {
shadowColor(outcolor[1], lightlevel_day);
}
}
}
}
private final void shadowColor(Color c, int lightlevel) {
int scale = shadowscale[lightlevel];
if(scale < 256)
c.setRGBA((c.getRed() * scale) >> 8, (c.getGreen() * scale) >> 8,
(c.getBlue() * scale) >> 8, c.getAlpha());
}
/* Test if night/day is enabled for this renderer */
public boolean isNightAndDayEnabled() { return night_and_day; }
/* Test if sky light level needed */
public boolean isSkyLightLevelNeeded() { return (shadowscale != null); }
/* Test if emitted light level needed */
public boolean isEmittedLightLevelNeeded() { return (shadowscale != null) || (lightscale != null); }
}