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smooth fluid voxel animation
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austin 2024-03-20 08:50:32 -04:00
parent db8ad7d10a
commit 077cffa2e2
4 changed files with 52 additions and 16 deletions
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3
docs/src/highlevel-design/locations/biomeideas.md
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@ -303,3 +303,6 @@ Constant Thunderstorms and lots of lightning strikes
## Sky Reefs ## Sky Reefs
Full of kelp dangling from island, lots of sea-themed flying creatures Full of kelp dangling from island, lots of sea-themed flying creatures
## Ghost Water in the Sky
Idk what this means but I just came up with it and it sounds cool

60
src/main/java/electrosphere/client/fluid/cells/FluidCell.java
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@ -37,6 +37,9 @@ public class FluidCell {
static Texture groundTextureTwo = new Texture("/Textures/Ground/Dirt1.png"); static Texture groundTextureTwo = new Texture("/Textures/Ground/Dirt1.png");
static Texture groundTextureThree = new Texture("/Textures/Ground/Dirt1.png"); static Texture groundTextureThree = new Texture("/Textures/Ground/Dirt1.png");
static Texture groundTextureFour = new Texture("/Textures/Ground/Dirt1.png"); static Texture groundTextureFour = new Texture("/Textures/Ground/Dirt1.png");
//the value of an empty fluid cell weight that is not neighbored by a fluid value
public static final float ISO_SURFACE_EMPTY = -1;
static { static {
// groundTextureOne = new Texture("/Textures/Ground/GrassTileable.png"); // groundTextureOne = new Texture("/Textures/Ground/GrassTileable.png");
@ -137,14 +140,14 @@ public class FluidCell {
} else { } else {
for(int i = 0; i < ServerTerrainChunk.CHUNK_DIMENSION; i++){ for(int i = 0; i < ServerTerrainChunk.CHUNK_DIMENSION; i++){
for(int j = 0; j < ServerTerrainChunk.CHUNK_DIMENSION; j++){ for(int j = 0; j < ServerTerrainChunk.CHUNK_DIMENSION; j++){
weights[ServerTerrainChunk.CHUNK_DIMENSION][i][j] = -1; weights[ServerTerrainChunk.CHUNK_DIMENSION][i][j] = ISO_SURFACE_EMPTY;
} }
} }
} }
} else { } else {
for(int i = 0; i < ServerTerrainChunk.CHUNK_DIMENSION; i++){ for(int i = 0; i < ServerTerrainChunk.CHUNK_DIMENSION; i++){
for(int j = 0; j < ServerTerrainChunk.CHUNK_DIMENSION; j++){ for(int j = 0; j < ServerTerrainChunk.CHUNK_DIMENSION; j++){
weights[ServerTerrainChunk.CHUNK_DIMENSION][i][j] = -1; weights[ServerTerrainChunk.CHUNK_DIMENSION][i][j] = ISO_SURFACE_EMPTY;
} }
} }
} }
@ -160,14 +163,14 @@ public class FluidCell {
} else { } else {
for(int i = 0; i < ServerTerrainChunk.CHUNK_DIMENSION; i++){ for(int i = 0; i < ServerTerrainChunk.CHUNK_DIMENSION; i++){
for(int j = 0; j < ServerTerrainChunk.CHUNK_DIMENSION; j++){ for(int j = 0; j < ServerTerrainChunk.CHUNK_DIMENSION; j++){
weights[i][ServerTerrainChunk.CHUNK_DIMENSION][j] = -1; weights[i][ServerTerrainChunk.CHUNK_DIMENSION][j] = ISO_SURFACE_EMPTY;
} }
} }
} }
} else { } else {
for(int i = 0; i < ServerTerrainChunk.CHUNK_DIMENSION; i++){ for(int i = 0; i < ServerTerrainChunk.CHUNK_DIMENSION; i++){
for(int j = 0; j < ServerTerrainChunk.CHUNK_DIMENSION; j++){ for(int j = 0; j < ServerTerrainChunk.CHUNK_DIMENSION; j++){
weights[i][ServerTerrainChunk.CHUNK_DIMENSION][j] = -1; weights[i][ServerTerrainChunk.CHUNK_DIMENSION][j] = ISO_SURFACE_EMPTY;
} }
} }
} }
@ -183,14 +186,14 @@ public class FluidCell {
} else { } else {
for(int i = 0; i < ServerTerrainChunk.CHUNK_DIMENSION; i++){ for(int i = 0; i < ServerTerrainChunk.CHUNK_DIMENSION; i++){
for(int j = 0; j < ServerTerrainChunk.CHUNK_DIMENSION; j++){ for(int j = 0; j < ServerTerrainChunk.CHUNK_DIMENSION; j++){
weights[i][j][ServerTerrainChunk.CHUNK_DIMENSION] = -1; weights[i][j][ServerTerrainChunk.CHUNK_DIMENSION] = ISO_SURFACE_EMPTY;
} }
} }
} }
} else { } else {
for(int i = 0; i < ServerTerrainChunk.CHUNK_DIMENSION; i++){ for(int i = 0; i < ServerTerrainChunk.CHUNK_DIMENSION; i++){
for(int j = 0; j < ServerTerrainChunk.CHUNK_DIMENSION; j++){ for(int j = 0; j < ServerTerrainChunk.CHUNK_DIMENSION; j++){
weights[i][j][ServerTerrainChunk.CHUNK_DIMENSION] = -1; weights[i][j][ServerTerrainChunk.CHUNK_DIMENSION] = ISO_SURFACE_EMPTY;
} }
} }
} }
@ -206,12 +209,12 @@ public class FluidCell {
} }
} else { } else {
for(int i = 0; i < ServerTerrainChunk.CHUNK_DIMENSION; i++){ for(int i = 0; i < ServerTerrainChunk.CHUNK_DIMENSION; i++){
weights[ServerTerrainChunk.CHUNK_DIMENSION][ServerTerrainChunk.CHUNK_DIMENSION][i] = -1; weights[ServerTerrainChunk.CHUNK_DIMENSION][ServerTerrainChunk.CHUNK_DIMENSION][i] = ISO_SURFACE_EMPTY;
} }
} }
} else { } else {
for(int i = 0; i < ServerTerrainChunk.CHUNK_DIMENSION; i++){ for(int i = 0; i < ServerTerrainChunk.CHUNK_DIMENSION; i++){
weights[ServerTerrainChunk.CHUNK_DIMENSION][ServerTerrainChunk.CHUNK_DIMENSION][i] = -1; weights[ServerTerrainChunk.CHUNK_DIMENSION][ServerTerrainChunk.CHUNK_DIMENSION][i] = ISO_SURFACE_EMPTY;
} }
} }
//edge X-Z //edge X-Z
@ -226,12 +229,12 @@ public class FluidCell {
} }
} else { } else {
for(int i = 0; i < ServerTerrainChunk.CHUNK_DIMENSION; i++){ for(int i = 0; i < ServerTerrainChunk.CHUNK_DIMENSION; i++){
weights[ServerTerrainChunk.CHUNK_DIMENSION][i][ServerTerrainChunk.CHUNK_DIMENSION] = -1; weights[ServerTerrainChunk.CHUNK_DIMENSION][i][ServerTerrainChunk.CHUNK_DIMENSION] = ISO_SURFACE_EMPTY;
} }
} }
} else { } else {
for(int i = 0; i < ServerTerrainChunk.CHUNK_DIMENSION; i++){ for(int i = 0; i < ServerTerrainChunk.CHUNK_DIMENSION; i++){
weights[ServerTerrainChunk.CHUNK_DIMENSION][i][ServerTerrainChunk.CHUNK_DIMENSION] = -1; weights[ServerTerrainChunk.CHUNK_DIMENSION][i][ServerTerrainChunk.CHUNK_DIMENSION] = ISO_SURFACE_EMPTY;
} }
} }
//edge Y-Z //edge Y-Z
@ -246,12 +249,12 @@ public class FluidCell {
} }
} else { } else {
for(int i = 0; i < ServerTerrainChunk.CHUNK_DIMENSION; i++){ for(int i = 0; i < ServerTerrainChunk.CHUNK_DIMENSION; i++){
weights[i][ServerTerrainChunk.CHUNK_DIMENSION][ServerTerrainChunk.CHUNK_DIMENSION] = -1; weights[i][ServerTerrainChunk.CHUNK_DIMENSION][ServerTerrainChunk.CHUNK_DIMENSION] = ISO_SURFACE_EMPTY;
} }
} }
} else { } else {
for(int i = 0; i < ServerTerrainChunk.CHUNK_DIMENSION; i++){ for(int i = 0; i < ServerTerrainChunk.CHUNK_DIMENSION; i++){
weights[i][ServerTerrainChunk.CHUNK_DIMENSION][ServerTerrainChunk.CHUNK_DIMENSION] = -1; weights[i][ServerTerrainChunk.CHUNK_DIMENSION][ServerTerrainChunk.CHUNK_DIMENSION] = ISO_SURFACE_EMPTY;
} }
} }
if( if(
@ -263,10 +266,39 @@ public class FluidCell {
if(currentChunk != null){ if(currentChunk != null){
weights[ServerTerrainChunk.CHUNK_DIMENSION][ServerTerrainChunk.CHUNK_DIMENSION][ServerTerrainChunk.CHUNK_DIMENSION] = currentChunk.getWeight(0, 0, 0); weights[ServerTerrainChunk.CHUNK_DIMENSION][ServerTerrainChunk.CHUNK_DIMENSION][ServerTerrainChunk.CHUNK_DIMENSION] = currentChunk.getWeight(0, 0, 0);
} else { } else {
weights[ServerTerrainChunk.CHUNK_DIMENSION][ServerTerrainChunk.CHUNK_DIMENSION][ServerTerrainChunk.CHUNK_DIMENSION] = -1; weights[ServerTerrainChunk.CHUNK_DIMENSION][ServerTerrainChunk.CHUNK_DIMENSION][ServerTerrainChunk.CHUNK_DIMENSION] = ISO_SURFACE_EMPTY;
} }
} else { } else {
weights[ServerTerrainChunk.CHUNK_DIMENSION][ServerTerrainChunk.CHUNK_DIMENSION][ServerTerrainChunk.CHUNK_DIMENSION] = -1; weights[ServerTerrainChunk.CHUNK_DIMENSION][ServerTerrainChunk.CHUNK_DIMENSION][ServerTerrainChunk.CHUNK_DIMENSION] = ISO_SURFACE_EMPTY;
}
//now set neighboring air weights based on nearby fluid count
//idea being that we dont have the snapping behavior from iso surface jumping from -1->0.01
int[] neighborIndexX = new int[]{-1,1,0,0,0,0};
int[] neighborIndexY = new int[]{0,0,-1,1,0,0};
int[] neighborIndexZ = new int[]{0,0,0,0,-1,1};
for(int x = 0; x < ServerTerrainChunk.CHUNK_DATA_GENERATOR_SIZE; x++){
for(int y = 0; y < ServerTerrainChunk.CHUNK_DATA_GENERATOR_SIZE; y++){
for(int z = 0; z < ServerTerrainChunk.CHUNK_DATA_GENERATOR_SIZE; z++){
if(weights[x][y][z] > 0){
continue;
}
for(int i = 0; i < 6; i++){
int currX = x + neighborIndexX[i];
int currY = y + neighborIndexY[i];
int currZ = z + neighborIndexZ[i];
if(
currX >= 0 && currX < ServerTerrainChunk.CHUNK_DATA_GENERATOR_SIZE &&
currY >= 0 && currY < ServerTerrainChunk.CHUNK_DATA_GENERATOR_SIZE &&
currZ >= 0 && currZ < ServerTerrainChunk.CHUNK_DATA_GENERATOR_SIZE &&
(1 + weights[x][y][z]) < weights[currX][currY][currZ]
){
System.out.println("set neighbor weight");
weights[x][y][z] = -(1 - weights[currX][currY][currZ]);
}
}
}
}
} }
} }

3
src/main/java/electrosphere/client/fluid/manager/ClientFluidManager.java
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@ -12,6 +12,7 @@ import org.joml.Vector3i;
import electrosphere.client.fluid.cache.ClientFluidCache; import electrosphere.client.fluid.cache.ClientFluidCache;
import electrosphere.client.fluid.cache.FluidChunkData; import electrosphere.client.fluid.cache.FluidChunkData;
import electrosphere.client.fluid.cells.FluidCell;
import electrosphere.client.scene.ClientWorldData; import electrosphere.client.scene.ClientWorldData;
import electrosphere.engine.Globals; import electrosphere.engine.Globals;
import electrosphere.entity.types.fluid.FluidChunkModelData; import electrosphere.entity.types.fluid.FluidChunkModelData;
@ -166,7 +167,7 @@ public class ClientFluidManager {
for(int z = 0; z < FluidChunkData.CHUNK_SIZE; z++){ for(int z = 0; z < FluidChunkData.CHUNK_SIZE; z++){
weights[x][y][z] = floatBuffer.get(); weights[x][y][z] = floatBuffer.get();
if(weights[x][y][z] <= 0){ if(weights[x][y][z] <= 0){
weights[x][y][z] = -1f; weights[x][y][z] = FluidCell.ISO_SURFACE_EMPTY;
} }
} }
} }

2
src/main/java/electrosphere/renderer/meshgen/FluidChunkModelGeneration.java
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@ -602,7 +602,7 @@ public class FluidChunkModelGeneration {
weightGrid[x+0][y+1][z+0], weightGrid[x+0][y+1][z+1], weightGrid[x+1][y+1][z+1], weightGrid[x+1][y+1][z+0] weightGrid[x+0][y+1][z+0], weightGrid[x+0][y+1][z+1], weightGrid[x+1][y+1][z+1], weightGrid[x+1][y+1][z+0]
); );
//polygonize the current gridcell //polygonize the current gridcell
polygonize(currentCell, 0.0f, triangles, vertMap, verts, normals, trianglesSharingVert); polygonize(currentCell, 0.01f, triangles, vertMap, verts, normals, trianglesSharingVert);
} }
} }
} }