Specific particle types create heavy blobs of color in latest alchemy
Summary
Particles that use the following blend function parameters: PSYS_PART_BLEND_FUNC_SOURCE, PSYS_PART_BF_DEST_COLOR, PSYS_PART_BLEND_FUNC_DEST, PSYS_PART_BF_ONE ,
become ugly blobs of color when stacked up sufficiently when they did not in previous iterations of alchemy viewer.
Steps to reproduce
Make a linkset of 3 prims.
Make sure prim 2 and 3 occupy the same x,y,z coordinate.
Make prim 2 and 3 invisible and outside the bounds of prim 1.
Stuff this script in them:
vector NewColor() {
float r = llFrand(1.0);
float g = llFrand(1.0);
float b = llFrand(1.0);
float highest = r;
if (g > highest) highest = g;
if (b > highest) highest = b;
float multiplier = 1.0 / highest;
vector color = <r, g, b> * multiplier;
return color;
}
vector PurifyColor(vector input) {
float r = input.x;
float g = input.y;
float b = input.z;
float lowest = r;
if (g < lowest) lowest = g;
if (b < lowest) lowest = b;
if (!((r == b) && (b == g))) {
if (lowest == r) r = 0;
else if (lowest == b) b = 0;
else g = 0;
}
if (r > 0.6) r = r + (1 - r) / 2;
else r = 0;
if (g > 0.6) g = g + (1 - g) / 2;
else g = 0;
if (b > 0.6) b = b + (1 - b) / 2;
else b = 0;
return <r,g,b>;
}
Particles() {
vector color = llList2Vector(llGetLinkPrimitiveParams(3, [PRIM_COLOR, 0]), 0);
vector pure = PurifyColor(color);
llSetLinkPrimitiveParamsFast(2, [PRIM_POINT_LIGHT, TRUE, color, 1.0, 10.0, 0.0]);
llLinkParticleSystem(2, [
PSYS_PART_FLAGS, PSYS_PART_EMISSIVE_MASK | PSYS_PART_INTERP_COLOR_MASK |
PSYS_PART_INTERP_SCALE_MASK | PSYS_PART_FOLLOW_VELOCITY_MASK ,
PSYS_PART_MAX_AGE, 3,
PSYS_PART_START_COLOR, color,
PSYS_PART_END_COLOR, pure,
PSYS_PART_START_SCALE,<0.2,0.2,0.05>,
PSYS_PART_END_SCALE,<0.0001, 0.0001, 0.0001>,
PSYS_SRC_PATTERN, PSYS_SRC_PATTERN_EXPLODE,
PSYS_SRC_BURST_RATE, 0.03,
PSYS_SRC_ACCEL, <0,0,0.12>,
PSYS_SRC_BURST_PART_COUNT, 3,
PSYS_SRC_BURST_RADIUS, 0.0,
PSYS_SRC_BURST_SPEED_MIN, 0.05,
PSYS_SRC_BURST_SPEED_MAX, 0.01,
PSYS_PART_START_ALPHA, 0.8,
PSYS_PART_END_ALPHA, 0.3,
PSYS_PART_BLEND_FUNC_SOURCE, PSYS_PART_BF_DEST_COLOR,
PSYS_PART_BLEND_FUNC_DEST, PSYS_PART_BF_ONE ,
PSYS_SRC_TEXTURE, "97a662d2-ae5a-565e-ea2c-e37ee9607b04"
]);
llLinkParticleSystem(3, [
PSYS_PART_FLAGS,
PSYS_PART_INTERP_COLOR_MASK
| PSYS_PART_INTERP_SCALE_MASK
| PSYS_PART_EMISSIVE_MASK,
PSYS_PART_START_COLOR, color,
PSYS_PART_END_COLOR, pure,
PSYS_PART_START_ALPHA,0.500000,
PSYS_PART_END_ALPHA,0.100000,
PSYS_PART_START_SCALE,<0.2000, 0.4000, 0.00000>,
PSYS_PART_END_SCALE,<0.10000, 0.80000, 0.00000>,
PSYS_PART_MAX_AGE,3,
PSYS_SRC_PATTERN,2,
PSYS_SRC_TEXTURE,"ebc21f9d-826c-d150-2bf2-c204b5fc0751",
PSYS_SRC_BURST_RATE,0.1,
PSYS_SRC_BURST_PART_COUNT,1,
PSYS_SRC_BURST_RADIUS,0.02,
PSYS_SRC_BURST_SPEED_MIN,0.0,
PSYS_SRC_BURST_SPEED_MAX,0.0,
PSYS_PART_BLEND_FUNC_SOURCE, PSYS_PART_BF_DEST_COLOR,
PSYS_PART_BLEND_FUNC_DEST, PSYS_PART_BF_ONE ,
PSYS_SRC_ACCEL, <0.0, 0.0, 0.5> ]);
}
default
{
state_entry() {
Particles();
}
on_rez(integer n) {
vector color = NewColor();
llSetLinkColor(3, color, ALL_SIDES);
llSetLinkColor(LINK_THIS, color, 0);
}
changed(integer change) {
if (change & CHANGED_COLOR) {
Particles();
}
}
}What is the current bug behavior?
You get big ugly blobs of color see: http://wabbajack.ddns.net/web_images/particleBug.png
What is the expected correct behavior?
See: http://wabbajack.ddns.net/web_images/notSoBugged.png
Environment
Alchemy Project AgileAkita 6.5.3.1401 (64bit)
Release Notes
You are at 186.7, 34.1, 3,001.4 in Raiden located at simhost-0f6517a2dc564cae2.agni
SLURL: http://maps.secondlife.com/secondlife/Raiden/187/34/3001
(global coordinates 259,003.0, 255,522.0, 3,001.4)
Second Life Server 2022-01-06.567269
Retrieving...
CPU: AMD Ryzen 9 3900X 12-Core Processor (3792.88 MHz)
Memory: 32682 MB
Concurrency: 24
OS Version: Microsoft Windows 10 64-bit (Build 19042.1526)
Graphics Card Vendor: ATI Technologies Inc.
Graphics Card: AMD Radeon RX 6800 XT
Windows Graphics Driver Version: 30.0.14011.3017
OpenGL Version: 4.6.14802 Compatibility Profile Context 21.12.1 30.0.14011.3017
Window size: 2560x1377
Font Size Adjustment: 96pt
UI Scaling: 1.5
Draw distance: 128m
Bandwidth: 3000kbit/s
LOD factor: 3.25
Render quality: 5
Advanced Lighting Model: Enabled
Texture memory: 3072MB
Texture cache: 2640MB / 8344MB (31.7% used)
Disk cache: 10239MB / 10240MB (100.0% used)
RestrainedLove API: RLV v3.4.3 / RLVa v2.4.2.1401
libcurl Version: libcurl/7.81.0 OpenSSL/3.0.1 zlib/1.2.11.zlib-ng c-ares/1.18.1 WinIDN nghttp2/1.46.0
J2C Decoder Version: OpenJPEG Runtime: 2.4.0
Audio Driver Version: FMOD Studio 2.02.05
Dullahan: 1.12.2
CEF: 97.1.5+g2b00258+chromium-97.0.4692.71
Chromium: 97.0.4692.71
LibVLC Version: 3.0.16
Voice Server Version: Vivox 4.10.0000.32327
Compiler Version: MSVC 193030706
Packets Lost: 103/1,382,114 (0.0%)
February 12 2022 21:07:23
Relevant logs and/or screenshots
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