diff options
Diffstat (limited to 'examples/svg/opengl/framebufferobject/glwidget.cpp')
| -rw-r--r-- | examples/svg/opengl/framebufferobject/glwidget.cpp | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/examples/svg/opengl/framebufferobject/glwidget.cpp b/examples/svg/opengl/framebufferobject/glwidget.cpp index f7d94db..805e731 100644 --- a/examples/svg/opengl/framebufferobject/glwidget.cpp +++ b/examples/svg/opengl/framebufferobject/glwidget.cpp @@ -300,7 +300,9 @@ void GLWidget::timerEvent(QTimerEvent *) rot_z += 0.3f; rot_x += 0.1f; - static float wt[128][128]; + static float wt = 0.0; + wt += 0.1f; + const int width = logo.width(); const int dx = width >> 1, dy = dx; // disturbance point const float W = .3f; @@ -310,8 +312,7 @@ void GLWidget::timerEvent(QTimerEvent *) for (int i = 0; i < width; ++i) { for (int j = 0; j < width; ++j) { const float s = hypot(j - dx, i - dy); - wt[i][j] += 0.1f; - const double raw = AMP * sin(2 * M_PI * W * (wt[i][j] + s / v)); + const double raw = AMP * sin(2 * M_PI * W * (wt + s / v)); if (s != 0) wave[i * width + j] = raw / (0.2 * (s + 2)); else |