GpuParticles graphic glitch

[NewKrok]

I just added a smoke effect to my project with GpuParticles and I found this glitch - gif + screenshots are attached. pc, browser (chrome), nvidia gtx1070

Here is the code:

var parts = new h3d.parts.GpuParticles(s3d);

var g = new h3d.parts.GpuParticles.GpuPartGroup(parts);
g.emitMode = GpuEmitMode.VolumeBounds;
g.emitAngle = 0.5;
g.emitDist = 0;

g.gravity = 0;
g.size = 5;
g.sizeRand = 2;
g.sizeIncr = 3;

g.rotSpeed = 0.5;
g.rotSpeedRand = 0.5;

g.speed = 0.4;
g.speedRand = 0.6;

g.life = 1;
g.lifeRand = 2;
g.nparts = 10;

g.texture = texture;

g.sortMode = GpuSortMode.Dynamic;

parts.addGroup(g);

I have tried it with different sortModes and with different emitModes but it's mostly the same - with GpuSortMode.None it is much much worse. The texture is transparent but it looks it doesn't matter too.

It looks it has some strange effect on other textures too:

[ncannasse]

Seems like an issue with sorting, where some particle might be draw before one other behind it. You can try disabling depth write on material to improve the result.

Le mer. 8 avr. 2020 à 23:54, Krisztian Somoracz notifications@github.com a écrit :

I just added a smoke effect to my project with GpuParticles and I found this glitch - gif + screenshots are attached. pc, browser (chrome), nvidia gtx1070

Here is the code:

var parts = new h3d.parts.GpuParticles(s3d);

var g = new h3d.parts.GpuParticles.GpuPartGroup(parts); g.emitMode = GpuEmitMode.VolumeBounds; g.emitAngle = 0.5; g.emitDist = 0;

g.gravity = 0; g.size = 5; g.sizeRand = 2; g.sizeIncr = 3;

g.rotSpeed = 0.5; g.rotSpeedRand = 0.5;

g.speed = 0.4; g.speedRand = 0.6;

g.life = 1; g.lifeRand = 2; g.nparts = 10;

g.texture = texture;

g.sortMode = GpuSortMode.Dynamic;

parts.addGroup(g);

I have tried it with different sortModes and with different emitModes but it's mostly the same - with GpuSortMode.None it is much much worse. The texture is transparent but it looks it doesn't matter too.

[image: ezgif-2-af320770d08e] https://user-images.githubusercontent.com/13141660/78835647-d4f29100-79f0-11ea-8571-73f3a0a34098.gif [image: image] https://user-images.githubusercontent.com/13141660/78835932-59451400-79f1-11ea-9138-ca8816f7d687.png [image: image] https://user-images.githubusercontent.com/13141660/78836070-9a3d2880-79f1-11ea-8469-7b1a0826032d.png

It looks it has some strange effect on other textures too: [image: image] https://user-images.githubusercontent.com/13141660/78837129-b3df6f80-79f3-11ea-8b18-70c180d6a70f.png

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[NewKrok]

Sadly it looks like the it's same with this: parts.material.mainPass.depthWrite = false;