diff options
Diffstat (limited to 'src/shader')
| -rw-r--r-- | src/shader/code/collide.glsl | 2 | ||||
| -rw-r--r-- | src/shader/code/extra.glsl | 14 |
2 files changed, 15 insertions, 1 deletions
diff --git a/src/shader/code/collide.glsl b/src/shader/code/collide.glsl index d32bf78..0f9b2bd 100644 --- a/src/shader/code/collide.glsl +++ b/src/shader/code/collide.glsl @@ -133,7 +133,7 @@ float equilibrium(float d, vec2 v, int i, int j) { /// Material number meaning (geometry is only changed by the interaction shader) bool isBulkFluidCell(int material) { - return material == 1 || material == 4 || material == 5 || material == 6; + return material == 1 || material == 5 || material == 6; } bool isBounceBackCell(int material) { diff --git a/src/shader/code/extra.glsl b/src/shader/code/extra.glsl index 3fec976..b8483ae 100644 --- a/src/shader/code/extra.glsl +++ b/src/shader/code/extra.glsl @@ -23,6 +23,11 @@ uint indexOfFluidVertex(uint x, uint y) { /// Data access +int getMaterial(uint x, uint y) { + const uint idx = indexOfFluidVertex(x, y); + return int(extraCells[idx + 2]); +} + vec2 getFluidVelocity(uint x, uint y) { const uint idx = indexOfFluidVertex(x, y); return vec2( @@ -44,6 +49,15 @@ void main() { return; } + if ( getMaterial(x,y) != 1 + || getMaterial(x-1,y) != 1 + || getMaterial(x+1,y) != 1 + || getMaterial(x,y-1) != 1 + || getMaterial(x,y+1) != 1 ) { + setFluidExtra(x, y, 0.0); + return; + } + // simple central difference discretization of the 2d curl operator const float dxvy = (getFluidVelocity(x+1,y).y - getFluidVelocity(x-1,y).y) / (2*convLength); |