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Pattern Grow Fade Mask

This commit is contained in:
PS 2021-04-08 18:11:56 -10:00
parent 29a92837a6
commit 175f58fd07
2 changed files with 38 additions and 1 deletions
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37
src/app/patterns/blumen_patterns.h
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@ -662,7 +662,7 @@ Pattern_StemSolid(led_buffer* Leds, led_buffer_range Range, assembly Assembly, r
v2_strip Strip = Assembly.Strips[StripIndex];
for (u32 i = 0; i < Strip.LedCount; i++)
{
v4 P = Leds->Positions[i];
v4 P = Leds->Positions[Strip.LedLUT[i]];
Leds->Colors[i] = WhiteMask;
}
}
@ -686,5 +686,40 @@ Pattern_PrimaryHue(led_buffer* Leds, led_buffer_range Range, assembly Assembly,
}
}
internal void
Pattern_GrowFadeMask(led_buffer* Leds, led_buffer_range Range, assembly Assembly, r32 Time, gs_memory_arena* Transient, u8* UserData)
{
blumen_lumen_state* BLState = (blumen_lumen_state*)UserData;
Time = Time * BLState->PatternSpeed;
r32 Period = 10.0f; // seconds
r32 ElapsedPct = FractR32(Time / Period);
r32 ElapsedPctGrow = PowR32(ElapsedPct * 2, 2);
r32 ElapsedPctFade = Clamp01((ElapsedPct * 2) - 1);
r32 Radius = 300 * ElapsedPctGrow;
v3 Origin = Assembly.Center - v3{0, 150, 0};
r32 Brightness = Smoothstep(1.0f - ElapsedPctFade);
pixel COutside = V4ToRGBPixel(BlackV4);
pixel CInside = V4ToRGBPixel(WhiteV4 * Brightness);
for (u32 LedIndex = Range.First; LedIndex < Range.OnePastLast; LedIndex++)
{
v3 P = Leds->Positions[LedIndex].xyz;
r32 Dist = V3Mag(P - Origin);
if (Dist < Radius)
{
Leds->Colors[LedIndex] = CInside;
}
else
{
Leds->Colors[LedIndex] = COutside;
}
}
}
#define BLUMEN_PATTERNS_H
#endif // BLUMEN_PATTERNS_H

2
src/app/ss_blumen_lumen/blumen_lumen.cpp
View File

@ -217,6 +217,8 @@ BlumenLumen_LoadPatterns(app_state* State)
Patterns_PushPattern(Patterns, Pattern_StemSolid, PATTERN_MULTITHREADED);
Patterns_PushPattern(Patterns, Pattern_PrimaryHue, PATTERN_MULTITHREADED);
Patterns_PushPattern(Patterns, Pattern_GrowFadeMask, PATTERN_MULTITHREADED);
}
internal void