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experimental hair tuning submitted by Ryan

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This commit is contained in:
Andrew Meadows 2014-10-16 10:20:12 -07:00
parent a2b3ba2551
commit 8b54569480
1 changed files with 11 additions and 9 deletions
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20
interface/src/Hair.cpp
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@ -8,7 +8,7 @@
// Distributed under the Apache License, Version 2.0.
// See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
//
// Creates single flexible vertlet-integrated strands that can be used for hair/fur/grass
// Creates single flexible verlet-integrated strands that can be used for hair/fur/grass
#include "Hair.h"
@ -39,7 +39,7 @@ Hair::Hair(int strands,
_angularVelocity(0.0f),
_angularAcceleration(0.0f),
_gravity(0.0f),
_loudness()
_loudness(0.0f)
{
_hairPosition = new glm::vec3[_strands * _links];
_hairOriginalPosition = new glm::vec3[_strands * _links];
@ -90,7 +90,9 @@ Hair::Hair(int strands,
}
}
}
}
}
const float SOUND_THRESHOLD = 50.0f;
void Hair::simulate(float deltaTime) {
deltaTime = glm::clamp(deltaTime, 0.0f, 1.0f / 30.0f);
@ -119,10 +121,10 @@ void Hair::simulate(float deltaTime) {
(_radius - glm::length(_hairPosition[vertexIndex]));
}
// Add random thing driven by loudness
const float LOUD_BASE = 0.0005f;
float loudnessFactor = (_loudness > 0.0f) ? logf(_loudness) / 2000.0f : 0.0f;
float loudnessFactor = (_loudness > SOUND_THRESHOLD) ? logf(_loudness - SOUND_THRESHOLD) / 8000.0f : 0.0f;
_hairPosition[vertexIndex] += randVector() * (LOUD_BASE + loudnessFactor) * ((float)link / (float)_links);
const float QUIESCENT_LOUDNESS = 0.0f;
_hairPosition[vertexIndex] += randVector() * (QUIESCENT_LOUDNESS + loudnessFactor) * ((float)link / (float)_links);
// Add gravity
const float SCALE_GRAVITY = 0.10f;
@ -178,7 +180,7 @@ void Hair::simulate(float deltaTime) {
}
}
// Store start position for next vertlet pass
// Store start position for next verlet pass
_hairLastPosition[vertexIndex] = thisPosition;
}
}
@ -189,9 +191,9 @@ void Hair::render() {
//
// Before calling this function, translate/rotate to the origin of the owning object
//
float loudnessFactor = (_loudness > 0.0f) ? logf(_loudness) / 16.0f : 0.0f;
float loudnessFactor = (_loudness > SOUND_THRESHOLD) ? logf(_loudness - SOUND_THRESHOLD) / 16.0f : 0.0f;
const int SPARKLE_EVERY = 5;
const float HAIR_SETBACK = 0.125f;
const float HAIR_SETBACK = 0.0f;
int sparkleIndex = (int) (randFloat() * SPARKLE_EVERY);
glPushMatrix();
glTranslatef(0.f, 0.f, HAIR_SETBACK);