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adjust HSV jitter, add average

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This commit is contained in:
omigamedev
2018-07-28 12:27:40 +02:00
parent 3936d9cef9
commit 4a05bda62f
2 changed files with 11 additions and 4 deletions
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13
engine/brush.cpp
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@@ -144,10 +144,11 @@ ui::StrokeSample ui::Stroke::randomize_sample(const glm::vec2& pos, float pressu
s.size = 800.f * m_brush.m_tip_size * (1.f - rnd_nor() * m_brush.m_jitter_scale) * size_dyn;
s.flow = m_brush.m_tip_flow * (1.f - rnd_nor() * m_brush.m_jitter_flow) * flow_dyn;
auto hsv = convert_rgb2hsv(m_brush.m_tip_color);
hsv.x = hsv.x + (rnd_nor() - 0.5f) * m_brush.m_jitter_hue + (pressure * 2.0f - 0.5f) * m_brush.m_tip_hue * m_brush.m_tip_hue_pressure;
hsv.y = hsv.y + (rnd_nor() - 0.5f) * m_brush.m_jitter_sat + (pressure * 2.0f - 0.5f) * m_brush.m_tip_sat * m_brush.m_tip_sat_pressure;
hsv.z = hsv.z + (rnd_nor() - 0.5f) * m_brush.m_jitter_val + (pressure * 2.0f - 0.5f) * m_brush.m_tip_val * m_brush.m_tip_val_pressure;
s.col = convert_hsv2rgb(hsv);
hsv.x = glm::clamp(glm::mix(hsv.x, (pressure - 0.5f) * 2.0f, m_brush.m_tip_hue * (float)m_brush.m_tip_hue_pressure) + (rnd_nor() - 0.5f) * m_brush.m_jitter_hue, 0.f, 1.f);
hsv.y = glm::clamp(glm::mix(hsv.y, (pressure - 0.5f) * 2.0f, m_brush.m_tip_sat * (float)m_brush.m_tip_sat_pressure) + (rnd_nor() - 0.5f) * m_brush.m_jitter_sat, 0.f, 1.f);
hsv.z = glm::clamp(glm::mix(hsv.z, (pressure - 0.5f) * 2.0f, m_brush.m_tip_val * (float)m_brush.m_tip_val_pressure) + (rnd_nor() - 0.5f) * m_brush.m_jitter_val, 0.f, 1.f);
m_hsv_jitter.add(hsv);
s.col = convert_hsv2rgb(m_hsv_jitter.average());
return s;
}
std::vector<ui::StrokeSample> ui::Stroke::compute_samples()
@@ -204,6 +205,8 @@ void ui::Stroke::add_point(glm::vec2 pos, float pressure)
m_curve = glm::min(m_curve + 0.1f, 1.f);
pressure = pressure * glm::pow(m_curve, 2.f);
#endif // __IOS__
m_pressure_buff.add(pressure);
pressure = m_pressure_buff.average();
if (m_brush.m_tip_size_pressure)
m_step = glm::max(m_brush.m_tip_spacing * m_brush.m_tip_size * pressure * 800.f, 1.f);
@@ -222,6 +225,8 @@ void ui::Stroke::start(const ui::Brush& brush)
{
m_curve = 0.f;
m_curve_angles.clear();
m_pressure_buff.clear();
m_hsv_jitter.clear();
m_last_kp = 0;
m_dist = 0.f;
m_brush = brush;

2
engine/brush.h
View File

@@ -83,6 +83,8 @@ public:
Camera m_camera;
ui::Brush m_brush;
cbuffer<float, 3> m_curve_angles;
cbuffer<float, 10> m_pressure_buff;
cbuffer<glm::vec3, 3> m_hsv_jitter;
StrokeSample m_prev_sample;
std::vector<Keypoint> m_keypoints;
std::vector<StrokeSample> m_samples;