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Merge pull request #269 from mikeprimm/hdrender
Add support for non-cube block models, subblock tracing for them
This commit is contained in:
mikeprimm
commit
2cb8d9e3a1
333
src/main/java/org/dynmap/hdmap/HDBlockModels.java
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333
src/main/java/org/dynmap/hdmap/HDBlockModels.java
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@ -0,0 +1,333 @@
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package org.dynmap.hdmap;
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import java.util.ArrayList;
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import java.util.HashMap;
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import org.bukkit.Material;
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/**
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* Custom block models - used for non-cube blocks to represent the physical volume associated with the block
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* Used by perspectives to determine if rays have intersected a block that doesn't occupy its whole block
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*/
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public class HDBlockModels {
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private int blockid;
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private int databits;
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private long blockflags[];
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private int nativeres;
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private HashMap<Integer, short[]> scaledblocks;
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private static HashMap<Integer, HDBlockModels> models_by_id_data = new HashMap<Integer, HDBlockModels>();
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public static class HDScaledBlockModels {
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private short[][][] modelvectors;
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public final short[] getScaledModel(int blocktype, int blockdata) {
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if((blocktype > modelvectors.length) || (modelvectors[blocktype] == null) ||
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(modelvectors[blocktype][blockdata] == null)) {
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return null;
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}
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return modelvectors[blocktype][blockdata];
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}
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}
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private static HashMap<Integer, HDScaledBlockModels> scaled_models_by_scale = new HashMap<Integer, HDScaledBlockModels>();
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/* Block models */
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private static HDBlockModels WOOD_STAIR_UP_NORTH = new HDBlockModels(Material.WOOD_STAIRS, 1<<1, 2, new long[] {
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0x03, 0x03,
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0x01, 0x01 });
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private static HDBlockModels WOOD_STAIR_UP_SOUTH = new HDBlockModels(Material.WOOD_STAIRS, 1<<0, 2, new long[] {
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0x03, 0x03,
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0x02, 0x02 });
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private static HDBlockModels WOOD_STAIR_UP_WEST = new HDBlockModels(Material.WOOD_STAIRS, 1<<2, 2, new long[] {
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0x03, 0x03,
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0x00, 0x03 });
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private static HDBlockModels WOOD_STAIR_UP_EAST = new HDBlockModels(Material.WOOD_STAIRS, 1<<3, 2, new long[] {
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0x03, 0x03,
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0x03, 0x00 });
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private static HDBlockModels COBBLE_STAIR_UP_NORTH = new HDBlockModels(Material.COBBLESTONE_STAIRS, 1<<1, WOOD_STAIR_UP_NORTH);
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private static HDBlockModels COBBLE_STAIR_UP_SOUTH = new HDBlockModels(Material.COBBLESTONE_STAIRS, 1<<0, WOOD_STAIR_UP_SOUTH);
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private static HDBlockModels COBBLE_STAIR_UP_WEST = new HDBlockModels(Material.COBBLESTONE_STAIRS, 1<<2, WOOD_STAIR_UP_WEST);
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private static HDBlockModels COBBLE_STAIR_UP_EAST = new HDBlockModels(Material.COBBLESTONE_STAIRS, 1<<3, WOOD_STAIR_UP_EAST);
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private static HDBlockModels STEP = new HDBlockModels(Material.STEP, 0x0F, 2, new long[] {
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0x03,
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0x03 });
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private static HDBlockModels SNOW = new HDBlockModels(Material.SNOW, 0x0F, 4, new long[] {
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0x0F, 0x0F, 0x0F, 0x0F });
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private static HDBlockModels TORCH_UP = new HDBlockModels(Material.TORCH, (1<<5) | (1 << 0), 4, new long[] {
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0x00, 0x02, 0x00, 0x00,
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0x00, 0x02, 0x00, 0x00 });
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private static HDBlockModels TORCH_SOUTH = new HDBlockModels(Material.TORCH, (1<<1), 4, new long[] {
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0x00, 0x00, 0x00, 0x00,
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0x00, 0x01, 0x00, 0x00,
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0x00, 0x02, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00 });
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private static HDBlockModels TORCH_NORTH = new HDBlockModels(Material.TORCH, (1<<2), 4, new long[] {
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0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x08, 0x00,
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0x00, 0x00, 0x04, 0x00,
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0x00, 0x00, 0x00, 0x00 });
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private static HDBlockModels TORCH_WEST = new HDBlockModels(Material.TORCH, (1<<3), 4, new long[] {
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0x00, 0x00, 0x00, 0x00,
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0x02, 0x00, 0x00, 0x00,
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0x00, 0x02, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00 });
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private static HDBlockModels TORCH_EAST = new HDBlockModels(Material.TORCH, (1<<4), 4, new long[] {
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0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x02,
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0x00, 0x00, 0x02, 0x00,
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0x00, 0x00, 0x00, 0x00 });
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private static HDBlockModels REDSTONETORCHON_UP = new HDBlockModels(Material.REDSTONE_TORCH_ON, (1<<5) | (1 << 0), TORCH_UP);
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private static HDBlockModels REDSTONETORCHOFF_UP = new HDBlockModels(Material.REDSTONE_TORCH_OFF, (1<<5) | (1 << 0), TORCH_UP);
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private static HDBlockModels REDSTONETORCHON_NORTH = new HDBlockModels(Material.REDSTONE_TORCH_ON, (1<<2), TORCH_NORTH);
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private static HDBlockModels REDSTONETORCHOFF_NORTH = new HDBlockModels(Material.REDSTONE_TORCH_OFF, (1<<2), TORCH_NORTH);
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private static HDBlockModels REDSTONETORCHON_SOUTH = new HDBlockModels(Material.REDSTONE_TORCH_ON, (1<<1), TORCH_SOUTH);
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private static HDBlockModels REDSTONETORCHOFF_SOUTH = new HDBlockModels(Material.REDSTONE_TORCH_OFF, (1<<1), TORCH_SOUTH);
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private static HDBlockModels REDSTONETORCHON_EAST = new HDBlockModels(Material.REDSTONE_TORCH_ON, (1<<4), TORCH_EAST);
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private static HDBlockModels REDSTONETORCHOFF_EAST = new HDBlockModels(Material.REDSTONE_TORCH_OFF, (1<<4), TORCH_EAST);
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private static HDBlockModels REDSTONETORCHON_WEST = new HDBlockModels(Material.REDSTONE_TORCH_ON, (1<<3), TORCH_WEST);
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private static HDBlockModels REDSTONETORCHOFF_WEST = new HDBlockModels(Material.REDSTONE_TORCH_OFF, (1<<3), TORCH_WEST);
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private static HDBlockModels FENCE = new HDBlockModels(Material.FENCE, 0xFFFF, 4, new long[] {
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0x00, 0x06, 0x06, 0x00,
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0x00, 0x06, 0x06, 0x00,
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0x00, 0x06, 0x06, 0x00,
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0x00, 0x06, 0x06, 0x00 });
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private static HDBlockModels TRAPDOOR = new HDBlockModels(Material.TRAP_DOOR, 0xFFFF, 4, new long[] {
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0x0F, 0x0F, 0x0F, 0x0F });
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private static HDBlockModels WOODPRESSPLATE = new HDBlockModels(Material.WOOD_PLATE, 0xFFFF, 4, new long[] {
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0x0F, 0x0F, 0x0F, 0x0F });
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private static HDBlockModels STONEPRESSPLATE = new HDBlockModels(Material.STONE_PLATE, 0xFFFF, 4, new long[] {
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0x0F, 0x0F, 0x0F, 0x0F });
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private static HDBlockModels WALLSIGN_NORTH = new HDBlockModels(Material.WALL_SIGN, (1<<4), 4, new long[] {
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0x00, 0x00, 0x00, 0x00,
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0x08, 0x08, 0x08, 0x08,
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0x08, 0x08, 0x08, 0x08,
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0x00, 0x00, 0x00, 0x00 });
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private static HDBlockModels WALLSIGN_SOUTH = new HDBlockModels(Material.WALL_SIGN, (1<<5), 4, new long[] {
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0x00, 0x00, 0x00, 0x00,
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0x01, 0x01, 0x01, 0x01,
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0x01, 0x01, 0x01, 0x01,
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0x00, 0x00, 0x00, 0x00 });
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private static HDBlockModels WALLSIGN_EAST = new HDBlockModels(Material.WALL_SIGN, (1<<2), 4, new long[] {
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0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x0F,
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0x00, 0x00, 0x00, 0x0F,
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0x00, 0x00, 0x00, 0x00 });
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private static HDBlockModels WALLSIGN_WEST = new HDBlockModels(Material.WALL_SIGN, (1<<3), 4, new long[] {
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0x00, 0x00, 0x00, 0x00,
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0x0F, 0x00, 0x00, 0x00,
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0x0F, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00 });
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private static HDBlockModels REDSTONEWIRE = new HDBlockModels(Material.REDSTONE_WIRE, 0xFFFF, 8, new long[] {
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0x18, 0x18, 0x18, 0xFF, 0xFF, 0x18, 0x18, 0x18 });
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private static HDBlockModels SIGNPOST_EASTWEST = new HDBlockModels(Material.SIGN_POST, 0xC7C7, 8, new long[] {
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0x00, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x7F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x7F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x7F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x7F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 });
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private static HDBlockModels SIGHPOST_NORTHSOUTH = new HDBlockModels(Material.SIGN_POST, 0x3838, 8, new long[] {
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0x00, 0x00, 0x00, 0x00, 0x08, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x08, 0x00, 0x00, 0x00,
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0x00, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08,
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0x00, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08,
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0x00, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08,
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0x00, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 });
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/**
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* Block definition - copy from other
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*/
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public HDBlockModels(Material blocktype, int databits, HDBlockModels m) {
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this.blockid = blocktype.getId();
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this.databits = databits;
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this.nativeres = m.nativeres;
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this.blockflags = m.blockflags;
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for(int i = 0; i < 16; i++) {
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if((databits & (1<<i)) != 0)
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models_by_id_data.put((blockid<<4)+i, this);
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}
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}
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/**
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* Block definition - positions correspond to Bukkit coordinates (+X is south, +Y is up, +Z is west)
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* @param blockid - block ID
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* @param databits - bitmap of block data bits matching this model (bit N is set if data=N would match)
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* @param nativeres - native subblocks per edge of cube (up to 64)
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* @param blockflags - array of native^2 long integers representing volume of block (bit X of element (nativeres*Y+Z) is set if that subblock is filled)
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* if array is short, other elements area are assumed to be zero (fills from bottom of block up)
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*/
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public HDBlockModels(Material blocktype, int databits, int nativeres, long[] blockflags) {
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this.blockid = blocktype.getId();
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this.databits = databits;
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this.nativeres = nativeres;
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this.blockflags = new long[nativeres * nativeres];
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System.arraycopy(blockflags, 0, this.blockflags, 0, blockflags.length);
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for(int i = 0; i < 16; i++) {
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if((databits & (1<<i)) != 0)
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models_by_id_data.put((blockid<<4)+i, this);
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}
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}
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/**
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* Test if given native block is filled
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*/
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public final boolean isSubblockSet(int x, int y, int z) {
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return ((blockflags[nativeres*y+z] & (1 << x)) != 0);
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}
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/**
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* Get scaled map of block: will return array of alpha levels, corresponding to how much of the
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* scaled subblocks are occupied by the original blocks (indexed by Y*res*res + Z*res + X)
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* @param res - requested scale (res subblocks per edge of block)
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* @return array of alpha values (0-255), corresponding to resXresXres subcubes of block
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*/
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public short[] getScaledMap(int res) {
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if(scaledblocks == null) { scaledblocks = new HashMap<Integer, short[]>(); }
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short[] map = scaledblocks.get(Integer.valueOf(res));
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if(map == null) {
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map = new short[res*res*res];
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if(res == nativeres) {
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for(int i = 0; i < blockflags.length; i++) {
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for(int j = 0; j < nativeres; j++) {
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if((blockflags[i] & (1 << j)) != 0)
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map[res*i+j] = 255;
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}
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}
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}
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/* If scaling from smaller sub-blocks to larger, each subblock contributes to 1-2 blocks
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* on each axis: need to calculate crossovers for each, and iterate through smaller
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* blocks to accumulate contributions
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*/
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else if(res > nativeres) {
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int weights[] = new int[res];
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int offsets[] = new int[res];
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/* LCM of resolutions is used as length of line (res * nativeres)
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* Each native block is (res) long, each scaled block is (nativeres) long
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* Each scaled block overlaps 1 or 2 native blocks: starting with native block 'offsets[]' with
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* 'weights[]' of its (res) width in the first, and the rest in the second
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*/
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for(int v = 0, idx = 0; v < res*nativeres; v += nativeres, idx++) {
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offsets[idx] = (v/res); /* Get index of the first native block we draw from */
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if((v+nativeres-1)/res == offsets[idx]) { /* If scaled block ends in same native block */
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weights[idx] = nativeres;
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}
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else { /* Else, see how much is in first one */
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weights[idx] = (offsets[idx] + res) - v;
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}
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}
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/* Now, use weights and indices to fill in scaled map */
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for(int y = 0, off = 0; y < res; y++) {
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int ind_y = offsets[y];
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int wgt_y = weights[y];
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for(int z = 0; z < res; z++) {
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int ind_z = offsets[z];
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int wgt_z = weights[z];
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for(int x = 0; x < res; x++, off++) {
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int ind_x = offsets[x];
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int wgt_x = weights[x];
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int raw_w = 0;
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for(int xx = 0; xx < 2; xx++) {
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int wx = (xx==0)?wgt_x:(nativeres-wgt_x);
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if(wx == 0) continue;
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for(int yy = 0; yy < 2; yy++) {
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int wy = (yy==0)?wgt_y:(nativeres-wgt_y);
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if(wy == 0) continue;
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for(int zz = 0; zz < 2; zz++) {
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int wz = (zz==0)?wgt_z:(nativeres-wgt_z);
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if(wz == 0) continue;
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if(isSubblockSet(ind_x+xx, ind_y+yy, ind_z+zz)) {
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raw_w += wx*wy*wz;
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}
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}
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}
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}
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map[off] = (short)((255*raw_w) / (nativeres*nativeres*nativeres));
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}
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}
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}
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}
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else { /* nativeres > res */
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int weights[] = new int[nativeres];
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int offsets[] = new int[nativeres];
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/* LCM of resolutions is used as length of line (res * nativeres)
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* Each native block is (res) long, each scaled block is (nativeres) long
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* Each native block overlaps 1 or 2 scaled blocks: starting with scaled block 'offsets[]' with
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* 'weights[]' of its (res) width in the first, and the rest in the second
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*/
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for(int v = 0, idx = 0; v < res*nativeres; v += res, idx++) {
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offsets[idx] = (v/nativeres); /* Get index of the first scaled block we draw to */
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if((v+res-1)/nativeres == offsets[idx]) { /* If native block ends in same scaled block */
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weights[idx] = res;
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}
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else { /* Else, see how much is in first one */
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weights[idx] = (offsets[idx] + nativeres) - v;
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}
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}
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/* Now, use weights and indices to fill in scaled map */
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for(int y = 0; y < nativeres; y++) {
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int ind_y = offsets[y];
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int wgt_y = weights[y];
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for(int z = 0; z < nativeres; z++) {
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int ind_z = offsets[z];
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int wgt_z = weights[z];
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for(int x = 0; x < nativeres; x++) {
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if(isSubblockSet(x, y, z)) {
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int ind_x = offsets[x];
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int wgt_x = weights[x];
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for(int xx = 0; xx < 2; xx++) {
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int wx = (xx==0)?wgt_x:(res-wgt_x);
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if(wx == 0) continue;
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for(int yy = 0; yy < 2; yy++) {
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int wy = (yy==0)?wgt_y:(res-wgt_y);
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if(wy == 0) continue;
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for(int zz = 0; zz < 2; zz++) {
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int wz = (zz==0)?wgt_z:(res-wgt_z);
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if(wz == 0) continue;
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map[(ind_y+yy)*res*res + (ind_z+zz)*res + (ind_x+xx)] +=
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wx*wy*wz;
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}
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}
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}
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}
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}
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}
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}
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for(int i = 0; i < map.length; i++) {
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map[i] = (short)(255*map[i]/(nativeres*nativeres*nativeres));
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}
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}
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scaledblocks.put(Integer.valueOf(res), map);
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}
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return map;
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}
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/**
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* Get scaled set of models for all modelled blocks
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* @param scale
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* @return
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*/
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public static HDScaledBlockModels getModelsForScale(int scale) {
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HDScaledBlockModels model = scaled_models_by_scale.get(Integer.valueOf(scale));
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if(model == null) {
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model = new HDScaledBlockModels();
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short[][][] blockmodels = new short[256][][];
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for(HDBlockModels m : models_by_id_data.values()) {
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short[][] row = blockmodels[m.blockid];
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if(row == null) {
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row = new short[16][];
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blockmodels[m.blockid] = row;
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}
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short[] smod = null;
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for(int i = 0; i < 16; i++) {
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if((m.databits & (1 << i)) != 0) {
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if(smod == null) smod = m.getScaledMap(scale);
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row[i] = smod;
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}
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}
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}
|
||||
model.modelvectors = blockmodels;
|
||||
scaled_models_by_scale.put(scale, model);
|
||||
}
|
||||
return model;
|
||||
}
|
||||
}
|
||||
@ -49,6 +49,10 @@ public class IsoHDPerspective implements HDPerspective {
|
||||
private Matrix3D world_to_map;
|
||||
private Matrix3D map_to_world;
|
||||
|
||||
/* Scaled models for non-cube blocks */
|
||||
private HDBlockModels.HDScaledBlockModels scalemodels;
|
||||
private int modscale;
|
||||
|
||||
/* dimensions of a map tile */
|
||||
public static final int tileWidth = 128;
|
||||
public static final int tileHeight = 128;
|
||||
@ -74,6 +78,14 @@ public class IsoHDPerspective implements HDPerspective {
|
||||
Vector3D top, bottom;
|
||||
int px, py;
|
||||
BlockStep laststep = BlockStep.Y_MINUS;
|
||||
/* Raytrace state variables */
|
||||
double dx, dy, dz;
|
||||
int x, y, z;
|
||||
double dt_dx, dt_dy, dt_dz, t;
|
||||
int n;
|
||||
int x_inc, y_inc, z_inc;
|
||||
double t_next_y, t_next_x, t_next_z;
|
||||
boolean nonairhit;
|
||||
/**
|
||||
* Get sky light level - only available if shader requested it
|
||||
*/
|
||||
@ -115,6 +127,258 @@ public class IsoHDPerspective implements HDPerspective {
|
||||
*/
|
||||
public final int getPixelY() { return py; }
|
||||
|
||||
/**
|
||||
* Initialize raytrace state variables
|
||||
*/
|
||||
private void raytrace_init() {
|
||||
/* Compute total delta on each axis */
|
||||
dx = Math.abs(bottom.x - top.x);
|
||||
dy = Math.abs(bottom.y - top.y);
|
||||
dz = Math.abs(bottom.z - top.z);
|
||||
/* Initial block coord */
|
||||
x = (int) (Math.floor(top.x));
|
||||
y = (int) (Math.floor(top.y));
|
||||
z = (int) (Math.floor(top.z));
|
||||
/* Compute parametric step (dt) per step on each axis */
|
||||
dt_dx = 1.0 / dx;
|
||||
dt_dy = 1.0 / dy;
|
||||
dt_dz = 1.0 / dz;
|
||||
/* Initialize parametric value to 0 (and we're stepping towards 1) */
|
||||
t = 0;
|
||||
/* Compute number of steps and increments for each */
|
||||
n = 1;
|
||||
|
||||
/* If perpendicular to X axis */
|
||||
if (dx == 0) {
|
||||
x_inc = 0;
|
||||
t_next_x = Double.MAX_VALUE;
|
||||
}
|
||||
/* If bottom is right of top */
|
||||
else if (bottom.x > top.x) {
|
||||
x_inc = 1;
|
||||
n += (int) (Math.floor(bottom.x)) - x;
|
||||
t_next_x = (Math.floor(top.x) + 1 - top.x) * dt_dx;
|
||||
}
|
||||
/* Top is right of bottom */
|
||||
else {
|
||||
x_inc = -1;
|
||||
n += x - (int) (Math.floor(bottom.x));
|
||||
t_next_x = (top.x - Math.floor(top.x)) * dt_dx;
|
||||
}
|
||||
/* If perpendicular to Y axis */
|
||||
if (dy == 0) {
|
||||
y_inc = 0;
|
||||
t_next_y = Double.MAX_VALUE;
|
||||
}
|
||||
/* If bottom is above top */
|
||||
else if (bottom.y > top.y) {
|
||||
y_inc = 1;
|
||||
n += (int) (Math.floor(bottom.y)) - y;
|
||||
t_next_y = (Math.floor(top.y) + 1 - top.y) * dt_dy;
|
||||
}
|
||||
/* If top is above bottom */
|
||||
else {
|
||||
y_inc = -1;
|
||||
n += y - (int) (Math.floor(bottom.y));
|
||||
t_next_y = (top.y - Math.floor(top.y)) * dt_dy;
|
||||
}
|
||||
/* If perpendicular to Z axis */
|
||||
if (dz == 0) {
|
||||
z_inc = 0;
|
||||
t_next_z = Double.MAX_VALUE;
|
||||
}
|
||||
/* If bottom right of top */
|
||||
else if (bottom.z > top.z) {
|
||||
z_inc = 1;
|
||||
n += (int) (Math.floor(bottom.z)) - z;
|
||||
t_next_z = (Math.floor(top.z) + 1 - top.z) * dt_dz;
|
||||
}
|
||||
/* If bottom left of top */
|
||||
else {
|
||||
z_inc = -1;
|
||||
n += z - (int) (Math.floor(bottom.z));
|
||||
t_next_z = (top.z - Math.floor(top.z)) * dt_dz;
|
||||
}
|
||||
/* Walk through scene */
|
||||
laststep = BlockStep.Y_MINUS; /* Last step is down into map */
|
||||
skylightlevel = 15;
|
||||
emittedlightlevel = 0;
|
||||
nonairhit = false;
|
||||
}
|
||||
/**
|
||||
* Process visit of ray to block
|
||||
*/
|
||||
private boolean visit_block(MapIterator mapiter, HDShaderState[] shaderstate, boolean[] shaderdone) {
|
||||
blocktypeid = mapiter.getBlockTypeID();
|
||||
if(nonairhit || (blocktypeid != 0)) {
|
||||
blockdata = mapiter.getBlockData();
|
||||
boolean missed = false;
|
||||
/* Look up to see if block is modelled */
|
||||
short[] model = scalemodels.getScaledModel(blocktypeid, blockdata);
|
||||
if(model != null) {
|
||||
missed = raytraceSubblock(model);
|
||||
}
|
||||
if(!missed) {
|
||||
boolean done = true;
|
||||
for(int i = 0; i < shaderstate.length; i++) {
|
||||
if(!shaderdone[i])
|
||||
shaderdone[i] = shaderstate[i].processBlock(this);
|
||||
done = done && shaderdone[i];
|
||||
}
|
||||
/* If all are done, we're out */
|
||||
if(done)
|
||||
return true;
|
||||
nonairhit = true;
|
||||
}
|
||||
}
|
||||
if(need_skylightlevel)
|
||||
skylightlevel = mapiter.getBlockSkyLight();
|
||||
if(need_emittedlightlevel)
|
||||
emittedlightlevel = mapiter.getBlockEmittedLight();
|
||||
return false;
|
||||
}
|
||||
/**
|
||||
* Trace ray, based on "Voxel Tranversal along a 3D line"
|
||||
*/
|
||||
private void raytrace(MapChunkCache cache, MapIterator mapiter, HDShaderState[] shaderstate, boolean[] shaderdone) {
|
||||
/* Initialize raytrace state variables */
|
||||
raytrace_init();
|
||||
|
||||
mapiter.initialize(x, y, z);
|
||||
|
||||
boolean nonairhit = false;
|
||||
for (; n > 0; --n) {
|
||||
/* Visit block */
|
||||
if(visit_block(mapiter, shaderstate, shaderdone)) {
|
||||
return;
|
||||
}
|
||||
/* If X step is next best */
|
||||
if((t_next_x <= t_next_y) && (t_next_x <= t_next_z)) {
|
||||
x += x_inc;
|
||||
t = t_next_x;
|
||||
t_next_x += dt_dx;
|
||||
if(x_inc > 0) {
|
||||
laststep = BlockStep.X_PLUS;
|
||||
mapiter.incrementX();
|
||||
}
|
||||
else {
|
||||
laststep = BlockStep.X_MINUS;
|
||||
mapiter.decrementX();
|
||||
}
|
||||
}
|
||||
/* If Y step is next best */
|
||||
else if((t_next_y <= t_next_x) && (t_next_y <= t_next_z)) {
|
||||
y += y_inc;
|
||||
t = t_next_y;
|
||||
t_next_y += dt_dy;
|
||||
if(y_inc > 0) {
|
||||
laststep = BlockStep.Y_PLUS;
|
||||
mapiter.incrementY();
|
||||
if(mapiter.getY() > 127)
|
||||
return;
|
||||
}
|
||||
else {
|
||||
laststep = BlockStep.Y_MINUS;
|
||||
mapiter.decrementY();
|
||||
if(mapiter.getY() < 0)
|
||||
return;
|
||||
}
|
||||
}
|
||||
/* Else, Z step is next best */
|
||||
else {
|
||||
z += z_inc;
|
||||
t = t_next_z;
|
||||
t_next_z += dt_dz;
|
||||
if(z_inc > 0) {
|
||||
laststep = BlockStep.Z_PLUS;
|
||||
mapiter.incrementZ();
|
||||
}
|
||||
else {
|
||||
laststep = BlockStep.Z_MINUS;
|
||||
mapiter.decrementZ();
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
private boolean raytraceSubblock(short[] model) {
|
||||
int mx = 0, my = 0, mz = 0;
|
||||
double xx, yy, zz;
|
||||
double mt = t + 0.00000001;
|
||||
xx = top.x + mt *(bottom.x - top.x);
|
||||
yy = top.y + mt *(bottom.y - top.y);
|
||||
zz = top.z + mt *(bottom.z - top.z);
|
||||
mx = (int)((xx - Math.floor(xx)) * modscale);
|
||||
my = (int)((yy - Math.floor(yy)) * modscale);
|
||||
mz = (int)((zz - Math.floor(zz)) * modscale);
|
||||
double mdt_dx = dt_dx / modscale;
|
||||
double mdt_dy = dt_dy / modscale;
|
||||
double mdt_dz = dt_dz / modscale;
|
||||
double togo;
|
||||
double mt_next_x = t_next_x, mt_next_y = t_next_y, mt_next_z = t_next_z;
|
||||
if(mt_next_x != Double.MAX_VALUE) {
|
||||
togo = ((t_next_x - t) / mdt_dx);
|
||||
mt_next_x = mt + (togo - Math.floor(togo)) * mdt_dx;
|
||||
}
|
||||
if(mt_next_y != Double.MAX_VALUE) {
|
||||
togo = ((t_next_y - t) / mdt_dy);
|
||||
mt_next_y = mt + (togo - Math.floor(togo)) * mdt_dy;
|
||||
}
|
||||
if(mt_next_z != Double.MAX_VALUE) {
|
||||
togo = ((t_next_z - t) / mdt_dz);
|
||||
mt_next_z = mt + (togo - Math.floor(togo)) * mdt_dz;
|
||||
}
|
||||
double mtend = Math.min(t_next_x, Math.min(t_next_y, t_next_z));
|
||||
while(mt < mtend) {
|
||||
if(model[modscale*modscale*my + modscale*mz + mx] > 0) {
|
||||
return false;
|
||||
}
|
||||
/* If X step is next best */
|
||||
if((mt_next_x <= mt_next_y) && (mt_next_x <= mt_next_z)) {
|
||||
mx += x_inc;
|
||||
mt = mt_next_x;
|
||||
mt_next_x += mdt_dx;
|
||||
if(x_inc > 0) {
|
||||
laststep = BlockStep.X_PLUS;
|
||||
}
|
||||
else {
|
||||
laststep = BlockStep.X_MINUS;
|
||||
if(mx < 0)
|
||||
mx += modscale;
|
||||
}
|
||||
}
|
||||
/* If Y step is next best */
|
||||
else if((mt_next_y <= mt_next_x) && (mt_next_y <= mt_next_z)) {
|
||||
my += y_inc;
|
||||
mt = mt_next_y;
|
||||
mt_next_y += mdt_dy;
|
||||
if(y_inc > 0) {
|
||||
laststep = BlockStep.Y_PLUS;
|
||||
}
|
||||
else {
|
||||
laststep = BlockStep.Y_MINUS;
|
||||
if(my < 0)
|
||||
my += modscale;
|
||||
}
|
||||
}
|
||||
/* Else, Z step is next best */
|
||||
else {
|
||||
mz += z_inc;
|
||||
mt = mt_next_z;
|
||||
mt_next_z += mdt_dz;
|
||||
if(z_inc > 0) {
|
||||
laststep = BlockStep.Z_PLUS;
|
||||
}
|
||||
else {
|
||||
laststep = BlockStep.Z_MINUS;
|
||||
if(mz < 0)
|
||||
mz += modscale;
|
||||
}
|
||||
}
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
public IsoHDPerspective(ConfigurationNode configuration) {
|
||||
@ -130,7 +394,6 @@ public class IsoHDPerspective implements HDPerspective {
|
||||
scale = configuration.getDouble("scale", MIN_SCALE);
|
||||
if(scale < MIN_SCALE) scale = MIN_SCALE;
|
||||
if(scale > MAX_SCALE) scale = MAX_SCALE;
|
||||
Log.info("azimuth=" + azimuth + ", inclination=" + inclination + ", scale=" + scale);
|
||||
|
||||
/* Generate transform matrix for world-to-tile coordinate mapping */
|
||||
/* First, need to fix basic coordinate mismatches before rotation - we want zero azimuth to have north to top
|
||||
@ -155,6 +418,9 @@ public class IsoHDPerspective implements HDPerspective {
|
||||
Matrix3D coordswap = new Matrix3D(0.0, -1.0, 0.0, 0.0, 0.0, 1.0, -1.0, 0.0, 0.0);
|
||||
transform.multiply(coordswap);
|
||||
map_to_world = transform;
|
||||
/* Scaled models for non-cube blocks */
|
||||
modscale = (int)Math.ceil(scale);
|
||||
scalemodels = HDBlockModels.getModelsForScale(modscale);;
|
||||
}
|
||||
|
||||
@Override
|
||||
@ -397,7 +663,7 @@ public class IsoHDPerspective implements HDPerspective {
|
||||
for(int i = 0; i < numshaders; i++) {
|
||||
shaderstate[i].reset(ps);
|
||||
}
|
||||
raytrace(cache, mapiter, ps, shaderstate, shaderdone);
|
||||
ps.raytrace(cache, mapiter, shaderstate, shaderdone);
|
||||
for(int i = 0; i < numshaders; i++) {
|
||||
if(shaderdone[i] == false) {
|
||||
shaderstate[i].rayFinished(ps);
|
||||
@ -493,157 +759,6 @@ public class IsoHDPerspective implements HDPerspective {
|
||||
return renderone;
|
||||
}
|
||||
|
||||
/**
|
||||
* Trace ray, based on "Voxel Tranversal along a 3D line"
|
||||
*/
|
||||
private void raytrace(MapChunkCache cache, MapIterator mapiter, OurPerspectiveState ps,
|
||||
HDShaderState[] shaderstate, boolean[] shaderdone) {
|
||||
Vector3D top = ps.top;
|
||||
Vector3D bottom = ps.bottom;
|
||||
/* Compute total delta on each axis */
|
||||
double dx = Math.abs(bottom.x - top.x);
|
||||
double dy = Math.abs(bottom.y - top.y);
|
||||
double dz = Math.abs(bottom.z - top.z);
|
||||
/* Initial block coord */
|
||||
int x = (int) (Math.floor(top.x));
|
||||
int y = (int) (Math.floor(top.y));
|
||||
int z = (int) (Math.floor(top.z));
|
||||
/* Compute parametric step (dt) per step on each axis */
|
||||
double dt_dx = 1.0 / dx;
|
||||
double dt_dy = 1.0 / dy;
|
||||
double dt_dz = 1.0 / dz;
|
||||
/* Initialize parametric value to 0 (and we're stepping towards 1) */
|
||||
double t = 0;
|
||||
/* Compute number of steps and increments for each */
|
||||
int n = 1;
|
||||
int x_inc, y_inc, z_inc;
|
||||
|
||||
double t_next_y, t_next_x, t_next_z;
|
||||
/* If perpendicular to X axis */
|
||||
if (dx == 0) {
|
||||
x_inc = 0;
|
||||
t_next_x = Double.MAX_VALUE;
|
||||
}
|
||||
/* If bottom is right of top */
|
||||
else if (bottom.x > top.x) {
|
||||
x_inc = 1;
|
||||
n += (int) (Math.floor(bottom.x)) - x;
|
||||
t_next_x = (Math.floor(top.x) + 1 - top.x) * dt_dx;
|
||||
}
|
||||
/* Top is right of bottom */
|
||||
else {
|
||||
x_inc = -1;
|
||||
n += x - (int) (Math.floor(bottom.x));
|
||||
t_next_x = (top.x - Math.floor(top.x)) * dt_dx;
|
||||
}
|
||||
/* If perpendicular to Y axis */
|
||||
if (dy == 0) {
|
||||
y_inc = 0;
|
||||
t_next_y = Double.MAX_VALUE;
|
||||
}
|
||||
/* If bottom is above top */
|
||||
else if (bottom.y > top.y) {
|
||||
y_inc = 1;
|
||||
n += (int) (Math.floor(bottom.y)) - y;
|
||||
t_next_y = (Math.floor(top.y) + 1 - top.y) * dt_dy;
|
||||
}
|
||||
/* If top is above bottom */
|
||||
else {
|
||||
y_inc = -1;
|
||||
n += y - (int) (Math.floor(bottom.y));
|
||||
t_next_y = (top.y - Math.floor(top.y)) * dt_dy;
|
||||
}
|
||||
/* If perpendicular to Z axis */
|
||||
if (dz == 0) {
|
||||
z_inc = 0;
|
||||
t_next_z = Double.MAX_VALUE;
|
||||
}
|
||||
/* If bottom right of top */
|
||||
else if (bottom.z > top.z) {
|
||||
z_inc = 1;
|
||||
n += (int) (Math.floor(bottom.z)) - z;
|
||||
t_next_z = (Math.floor(top.z) + 1 - top.z) * dt_dz;
|
||||
}
|
||||
/* If bottom left of top */
|
||||
else {
|
||||
z_inc = -1;
|
||||
n += z - (int) (Math.floor(bottom.z));
|
||||
t_next_z = (top.z - Math.floor(top.z)) * dt_dz;
|
||||
}
|
||||
/* Walk through scene */
|
||||
ps.laststep = BlockStep.Y_MINUS; /* Last step is down into map */
|
||||
mapiter.initialize(x, y, z);
|
||||
ps.skylightlevel = 15;
|
||||
ps.emittedlightlevel = 0;
|
||||
boolean nonairhit = false;
|
||||
for (; n > 0; --n) {
|
||||
ps.blocktypeid = mapiter.getBlockTypeID();
|
||||
if(nonairhit || (ps.blocktypeid != 0)) {
|
||||
ps.blockdata = mapiter.getBlockData();
|
||||
boolean done = true;
|
||||
for(int i = 0; i < shaderstate.length; i++) {
|
||||
if(!shaderdone[i])
|
||||
shaderdone[i] = shaderstate[i].processBlock(ps);
|
||||
done = done && shaderdone[i];
|
||||
}
|
||||
/* If all are done, we're out */
|
||||
if(done)
|
||||
return;
|
||||
nonairhit = true;
|
||||
}
|
||||
if(need_skylightlevel)
|
||||
ps.skylightlevel = mapiter.getBlockSkyLight();
|
||||
if(need_emittedlightlevel)
|
||||
ps.emittedlightlevel = mapiter.getBlockEmittedLight();
|
||||
/* If X step is next best */
|
||||
if((t_next_x <= t_next_y) && (t_next_x <= t_next_z)) {
|
||||
x += x_inc;
|
||||
t = t_next_x;
|
||||
t_next_x += dt_dx;
|
||||
if(x_inc > 0) {
|
||||
ps.laststep = BlockStep.X_PLUS;
|
||||
mapiter.incrementX();
|
||||
}
|
||||
else {
|
||||
ps.laststep = BlockStep.X_MINUS;
|
||||
mapiter.decrementX();
|
||||
}
|
||||
}
|
||||
/* If Y step is next best */
|
||||
else if((t_next_y <= t_next_x) && (t_next_y <= t_next_z)) {
|
||||
y += y_inc;
|
||||
t = t_next_y;
|
||||
t_next_y += dt_dy;
|
||||
if(y_inc > 0) {
|
||||
ps.laststep = BlockStep.Y_PLUS;
|
||||
mapiter.incrementY();
|
||||
if(mapiter.getY() > 127)
|
||||
return;
|
||||
}
|
||||
else {
|
||||
ps.laststep = BlockStep.Y_MINUS;
|
||||
mapiter.decrementY();
|
||||
if(mapiter.getY() < 0)
|
||||
return;
|
||||
}
|
||||
}
|
||||
/* Else, Z step is next best */
|
||||
else {
|
||||
z += z_inc;
|
||||
t = t_next_z;
|
||||
t_next_z += dt_dz;
|
||||
if(z_inc > 0) {
|
||||
ps.laststep = BlockStep.Z_PLUS;
|
||||
mapiter.incrementZ();
|
||||
}
|
||||
else {
|
||||
ps.laststep = BlockStep.Z_MINUS;
|
||||
mapiter.decrementZ();
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
@Override
|
||||
public boolean isBiomeDataNeeded() {
|
||||
return need_biomedata;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user