Skip to content

fix possible concurrency bug #4

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Draft
asvarga wants to merge 1 commit into
base: main
Choose a base branch
from
Draft

fix possible concurrency bug #4

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
2 changes: 2 additions & 0 deletions Assets/Scripts/Slime/Simulation.cs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -139,6 +139,8 @@ void RunSimulation()

// Assign textures
compute.SetTexture(updateKernel, "TrailMap", trailMap);
compute.SetTexture(updateKernel, "DiffusedTrailMap", diffusedTrailMap);

compute.SetTexture(diffuseMapKernel, "TrailMap", trailMap);
compute.SetTexture(diffuseMapKernel, "DiffusedTrailMap", diffusedTrailMap);

Expand Down
6 changes: 3 additions & 3 deletions Assets/Scripts/Slime/SlimeSim.compute
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -23,6 +23,7 @@ RWStructuredBuffer<Agent> agents;
uint numAgents;

RWTexture2D<float4> TrailMap;
RWTexture2D<float4> DiffusedTrailMap;
int width;
int height;

Expand Down Expand Up @@ -65,7 +66,7 @@ float sense(Agent agent, SpeciesSettings settings, float sensorAngleOffset) {
for (int offsetY = -settings.sensorSize; offsetY <= settings.sensorSize; offsetY ++) {
int sampleX = min(width - 1, max(0, sensorCentreX + offsetX));
int sampleY = min(height - 1, max(0, sensorCentreY + offsetY));
sum += dot(senseWeight, TrailMap[int2(sampleX,sampleY)]);
sum += dot(senseWeight, DiffusedTrailMap[int2(sampleX,sampleY)]);
}
}

Expand Down Expand Up @@ -128,7 +129,7 @@ void Update (uint3 id : SV_DispatchThreadID)
agents[id.x].angle = randomAngle;
}
else {
float4 oldTrail = TrailMap[int2(newPos)];
float4 oldTrail = DiffusedTrailMap[int2(newPos)];
TrailMap[int2(newPos)] = min(1, oldTrail + agent.speciesMask * trailWeight * deltaTime);
}

Expand All @@ -139,7 +140,6 @@ void Update (uint3 id : SV_DispatchThreadID)

float decayRate;
float diffuseRate;
RWTexture2D<float4> DiffusedTrailMap;

[numthreads(8,8,1)]
void Diffuse (uint3 id : SV_DispatchThreadID)
Expand Down