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unsmooth editor camera panning

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jacob 2025-12-28 16:49:18 -06:00
parent 3d7f6eddfe
commit d84e12d598
2 changed files with 30 additions and 14 deletions
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33
src/pp/pp_vis/pp_vis_core.c
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@ -669,8 +669,8 @@ void V_TickForever(WaveLaneCtx *lane)
frame->edit_camera_zoom *= PowF32(zoom_rate, -last_frame->zooms);
frame->edit_camera_zoom = ClampF32(frame->edit_camera_zoom, min_zoom, max_zoom);
// Offset edit camera based on cursor if panning / zooming
b32 is_zooming = last_frame->zooms != 0 && (frame->edit_camera_zoom != last_frame->edit_camera_zoom);
if (last_frame->is_editing && (is_zooming || (frame->is_panning && last_frame->is_panning)))
b32 should_zoom = last_frame->zooms != 0 && (frame->edit_camera_zoom != last_frame->edit_camera_zoom);
if (last_frame->is_editing && (should_zoom || (frame->is_panning && last_frame->is_panning)))
{
Xform last_frame_edit_to_ui_xf = Zi;
Xform edit_to_ui_xf = Zi;
@ -710,17 +710,33 @@ void V_TickForever(WaveLaneCtx *lane)
// Create world <-> ui xforms
{
f32 lerp_ratio = 15.0 * frame->dt;
if (last_frame->tick == 0)
{
lerp_ratio = 1;
frame->camera_lerp_ratio = 1;
}
else if (frame->is_editing)
{
lerp_ratio = 30.0 * frame->dt;
b32 is_zooming = AbsF32(target_camera_zoom - last_frame->camera_zoom) > 0.001;
if (frame->is_panning && !is_zooming)
{
// When panning & not zooming, we want camera interpolation to be
// instant (no smoothing). However, the transition to non
// interpolation must be smooth.
frame->camera_lerp_ratio += last_frame->camera_lerp_ratio + (5 * frame->dt);
frame->camera_lerp_ratio = MinF32(frame->camera_lerp_ratio, 1);
}
frame->camera_pos = LerpVec2(last_frame->camera_pos, target_camera_pos, lerp_ratio);
frame->camera_zoom = LerpF32(last_frame->camera_zoom, target_camera_zoom, lerp_ratio);
else
{
frame->camera_lerp_ratio = 30.0 * frame->dt;
}
}
else
{
frame->camera_lerp_ratio = 15.0 * frame->dt;
}
frame->camera_pos = LerpVec2(last_frame->camera_pos, target_camera_pos, frame->camera_lerp_ratio);
frame->camera_zoom = LerpF32(last_frame->camera_zoom, target_camera_zoom, frame->camera_lerp_ratio);
{
f32 camera_scale = (f32)frame->draw_dims.x / (meters_per_draw_width * frame->camera_zoom);
frame->world_to_ui_xf = XformFromScale(VEC2(camera_scale, camera_scale));
@ -1513,15 +1529,14 @@ void V_TickForever(WaveLaneCtx *lane)
{
S_Cmd *cmd = V_PushSimCmd(S_CmdKind_Spawn);
S_Ent *ent = &cmd->ent;
*ent = *S_EntFromKey(&V.lookup, V.player_key);
ent->key = V.player_key;
ent->move_speed = 0.1;
{
ent->local_shape = S_ShapeFromDesc(
.mass = 10,
.count = 1,
.radius = 0.3,
);
}
ent->xf = XformFromPos(frame->world_cursor);
ent->has_weapon = 1;
} break;

1
src/pp/pp_vis/pp_vis_core.h
View File

@ -234,6 +234,7 @@ Struct(V_Frame)
f32 edit_camera_zoom;
// Camera
f32 camera_lerp_ratio;
Vec2 camera_pos;
f32 camera_zoom;