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neighbor sourcing bounds function
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austin 2024-12-12 14:48:13 -05:00
parent 05580f2b36
commit 9bb8c2f360
2 changed files with 129 additions and 8 deletions
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6
src/main/c/src/fluid/sim/grid2/grid2.c
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@ -341,7 +341,7 @@ static inline void fluid_grid2_apply_bounds_mask(Environment * environment, floa
invertedMask = _mm256_loadu_ps(&environment->state.grid2.fluid_grid2_border_mask_inverted[IX(x,y,z)]);
realPart = _mm256_mul_ps(realVal,invertedMask);
finalVec = _mm256_add_ps(realPart,maskedBounds);
_mm256_storeu_ps(&realArr[IX(x,y,z)],finalVec);
_mm256_storeu_ps(&boundsArr[IX(x,y,z)],finalVec);
//middle part
@ -353,7 +353,7 @@ static inline void fluid_grid2_apply_bounds_mask(Environment * environment, floa
invertedMask = _mm256_loadu_ps(&environment->state.grid2.fluid_grid2_border_mask_inverted[IX(x,y,z)]);
realPart = _mm256_mul_ps(realVal,invertedMask);
finalVec = _mm256_add_ps(realPart,maskedBounds);
_mm256_storeu_ps(&realArr[IX(x,y,z)],finalVec);
_mm256_storeu_ps(&boundsArr[IX(x,y,z)],finalVec);
//upper part
x = 10;
@ -364,7 +364,7 @@ static inline void fluid_grid2_apply_bounds_mask(Environment * environment, floa
invertedMask = _mm256_loadu_ps(&environment->state.grid2.fluid_grid2_border_mask_inverted[IX(x,y,z)]);
realPart = _mm256_mul_ps(realVal,invertedMask);
finalVec = _mm256_add_ps(realPart,maskedBounds);
_mm256_storeu_ps(&realArr[IX(x,y,z)],finalVec);
_mm256_storeu_ps(&boundsArr[IX(x,y,z)],finalVec);
}
}

131
src/main/c/src/fluid/sim/grid2/utilities.c
View File

@ -193,6 +193,125 @@ void fluid_grid2_set_bounds_continuity(
target[IX(DIM-1,DIM-1,DIM-1)] = (float)((target[IX(DIM-1,DIM-1,DIM-2)]+target[IX(DIM-1,DIM-2,DIM-1)]+target[IX(DIM-1,DIM-1,DIM-2)])/3.0);
}
/**
* Sets the bounds to the neighbor's value
*/
void fluid_grid2_set_bounds_neighbor(
Environment * environment,
int sourceType,
float * target
){
float * neighborArr;
switch(sourceType){
case BOUND_SET_DENSITY: {
neighborArr = environment->state.grid2.fluid_grid2_neighborArr_d;
} break;
case BOUND_SET_VECTOR_U: {
neighborArr = environment->state.grid2.fluid_grid2_neighborArr_u;
} break;
case BOUND_SET_VECTOR_V: {
neighborArr = environment->state.grid2.fluid_grid2_neighborArr_v;
} break;
case BOUND_SET_VECTOR_W: {
neighborArr = environment->state.grid2.fluid_grid2_neighborArr_w;
} break;
}
//set the boundary planes
for(int x=1; x < DIM-1; x++){
for(int y = 1; y < DIM-1; y++){
target[IX(0,x,y)] = neighborArr[IX(0,x,y)];
target[IX(DIM-1,x,y)] = neighborArr[IX(DIM-1,x,y)];
target[IX(x,0,y)] = neighborArr[IX(x,0,y)];
target[IX(x,DIM-1,y)] = neighborArr[IX(x,DIM-1,y)];
target[IX(x,y,0)] = neighborArr[IX(x,y,0)];
target[IX(x,y,DIM-1)] = neighborArr[IX(x,y,DIM-1)];
}
}
//sets the edges of the chunk
//this should logically follow from how we're treating the boundary planes
for(int x = 1; x < DIM-1; x++){
target[IX(x,0,0)] = neighborArr[IX(x,0,0)];
target[IX(x,DIM-1,0)] = neighborArr[IX(x,DIM-1,0)];
target[IX(x,0,DIM-1)] = neighborArr[IX(x,0,DIM-1)];
target[IX(x,DIM-1,DIM-1)] = neighborArr[IX(x,DIM-1,DIM-1)];
target[IX(0,x,0)] = neighborArr[IX(0,x,0)];
target[IX(DIM-1,x,0)] = neighborArr[IX(DIM-1,x,0)];
target[IX(0,x,DIM-1)] = neighborArr[IX(0,x,DIM-1)];
target[IX(DIM-1,x,DIM-1)] = neighborArr[IX(DIM-1,x,DIM-1)];
target[IX(0,0,x)] = neighborArr[IX(0,0,x)];
target[IX(DIM-1,0,x)] = neighborArr[IX(DIM-1,0,x)];
target[IX(0,DIM-1,x)] = neighborArr[IX(0,DIM-1,x)];
target[IX(DIM-1,DIM-1,x)] = neighborArr[IX(DIM-1,DIM-1,x)];
}
//sets the corners of the chunk
//this should logically follow from how we're treating the boundary planes
target[IX(0,0,0)] = neighborArr[IX(0,0,0)];
target[IX(DIM-1,0,0)] = neighborArr[IX(DIM-1,0,0)];
target[IX(0,DIM-1,0)] = neighborArr[IX(0,DIM-1,0)];
target[IX(0,0,DIM-1)] = neighborArr[IX(0,0,DIM-1)];
target[IX(DIM-1,DIM-1,0)] = neighborArr[IX(DIM-1,DIM-1,0)];
target[IX(0,DIM-1,DIM-1)] = neighborArr[IX(0,DIM-1,DIM-1)];
target[IX(DIM-1,0,DIM-1)] = neighborArr[IX(DIM-1,0,DIM-1)];
target[IX(DIM-1,DIM-1,DIM-1)] = neighborArr[IX(DIM-1,DIM-1,DIM-1)];
}
/**
* Sets the bounds to 0
*/
void fluid_grid2_set_bounds_zero(
Environment * environment,
float * target
){
float * boundsArr = environment->state.grid2.fluid_grid2_neighborArr_d;
//set the boundary planes
for(int x=1; x < DIM-1; x++){
for(int y = 1; y < DIM-1; y++){
target[IX(0,x,y)] = 0;
target[IX(DIM-1,x,y)] = 0;
target[IX(x,0,y)] = 0;
target[IX(x,DIM-1,y)] = 0;
target[IX(x,y,0)] = 0;
target[IX(x,y,DIM-1)] = 0;
}
}
//sets the edges of the chunk
//this should logically follow from how we're treating the boundary planes
for(int x = 1; x < DIM-1; x++){
target[IX(x,0,0)] = 0;
target[IX(x,DIM-1,0)] = 0;
target[IX(x,0,DIM-1)] = 0;
target[IX(x,DIM-1,DIM-1)] = 0;
target[IX(0,x,0)] = 0;
target[IX(DIM-1,x,0)] = 0;
target[IX(0,x,DIM-1)] = 0;
target[IX(DIM-1,x,DIM-1)] = 0;
target[IX(0,0,x)] = 0;
target[IX(DIM-1,0,x)] = 0;
target[IX(0,DIM-1,x)] = 0;
target[IX(DIM-1,DIM-1,x)] = 0;
}
//sets the corners of the chunk
//this should logically follow from how we're treating the boundary planes
target[IX(0,0,0)] = 0;
target[IX(DIM-1,0,0)] = 0;
target[IX(0,DIM-1,0)] = 0;
target[IX(0,0,DIM-1)] = 0;
target[IX(DIM-1,DIM-1,0)] = 0;
target[IX(0,DIM-1,DIM-1)] = 0;
target[IX(DIM-1,0,DIM-1)] = 0;
target[IX(DIM-1,DIM-1,DIM-1)] = 0;
}
/**
* Sets the bounds of this cube to those of its neighbor
*/
@ -204,18 +323,20 @@ LIBRARY_API void fluid_grid2_set_bounds(
switch(vector_dir){
case BOUND_SET_VECTOR_DIFFUSE_PHI_U:
case BOUND_SET_VECTOR_DIFFUSE_PHI_V:
case BOUND_SET_VECTOR_DIFFUSE_PHI_W:
case BOUND_SET_VECTOR_U:
case BOUND_SET_VECTOR_V:
case BOUND_SET_VECTOR_W: {
case BOUND_SET_VECTOR_DIFFUSE_PHI_W: {
fluid_grid2_set_bounds_reflection(environment,vector_dir,target);
} break;
case BOUND_SET_DENSITY_PHI:
case BOUND_SET_DENSITY:
case BOUND_SET_PROJECTION_PHI:
case BOUND_SET_PROJECTION_PHI_0: {
fluid_grid2_set_bounds_continuity(environment,target);
} break;
case BOUND_SET_VECTOR_U:
case BOUND_SET_VECTOR_V:
case BOUND_SET_VECTOR_W:
case BOUND_SET_DENSITY: {
fluid_grid2_set_bounds_neighbor(environment,vector_dir,target);
} break;
}
}