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Fix trackball rotation with multiple viewports

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This commit is contained in:
Julian Panetta
2018-11-28 22:12:10 +01:00
parent 1d12983ce2
commit ac0f60903e
1 changed files with 13 additions and 5 deletions
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include/igl/opengl/glfw/Viewer.cpp
+13 -5
View File
@@ -715,8 +715,13 @@ namespace glfw
if (callback_mouse_move(*this, mouse_x, mouse_y))
return true;
if (down)
{
// We need the window height to transform the mouse click coordinates into viewport-mouse-click coordinates
// for igl::trackball and igl::two_axis_valuator_fixed_up
int width_window, height_window;
glfwGetWindowSize(window, &width_window, &height_window);
switch (mouse_mode)
{
case MouseMode::Rotation:
@@ -733,10 +738,10 @@ namespace glfw
core().viewport(3),
2.0f,
down_rotation,
down_mouse_x,
down_mouse_y,
mouse_x,
mouse_y,
down_mouse_x - core().viewport(0),
down_mouse_y - (height_window - core().viewport(1) - core().viewport(3)),
mouse_x - core().viewport(0),
mouse_y - (height_window - core().viewport(1) - core().viewport(3)),
core().trackball_angle);
break;
case ViewerCore::ROTATION_TYPE_TWO_AXIS_VALUATOR_FIXED_UP:
@@ -744,7 +749,10 @@ namespace glfw
core().viewport(2),core().viewport(3),
2.0,
down_rotation,
down_mouse_x, down_mouse_y, mouse_x, mouse_y,
down_mouse_x - core().viewport(0),
down_mouse_y - (height_window - core().viewport(1) - core().viewport(3)),
mouse_x - core().viewport(0),
mouse_y - (height_window - core().viewport(1) - core().viewport(3)),
core().trackball_angle);
break;
}