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Cycles: panorama camera in viewport camera view now shows the render mapped

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to the camera border rather than the entire viewport.
This commit is contained in:
Brecht Van Lommel
2012-11-10 22:31:29 +00:00
parent 446f70f286
commit 1ca4670267
4 changed files with 177 additions and 119 deletions
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176
intern/cycles/blender/blender_camera.cpp
View File

@@ -56,10 +56,8 @@ struct BlenderCamera {
float sensor_width;
float sensor_height;
float border_left;
float border_right;
float border_bottom;
float border_top;
BoundBox2D border;
BoundBox2D pano_viewplane;
Transform matrix;
};
@@ -75,8 +73,10 @@ static void blender_camera_init(BlenderCamera *bcam)
bcam->sensor_height = 18.0f;
bcam->sensor_fit = BlenderCamera::AUTO;
bcam->shuttertime = 1.0f;
bcam->border_right = 1.0f;
bcam->border_top = 1.0f;
bcam->border.right = 1.0f;
bcam->border.top = 1.0f;
bcam->pano_viewplane.right = 1.0f;
bcam->pano_viewplane.top = 1.0f;
}
static float blender_camera_focal_distance(BL::Object b_ob, BL::Camera b_camera)
@@ -199,7 +199,7 @@ static Transform blender_camera_matrix(const Transform& tfm, CameraType type)
}
static void blender_camera_viewplane(BlenderCamera *bcam, int width, int height,
float *left, float *right, float *bottom, float *top, float *aspectratio, float *sensor_size)
BoundBox2D *viewplane, float *aspectratio, float *sensor_size)
{
/* dimensions */
float xratio = width*bcam->pixelaspect.x;
@@ -244,32 +244,26 @@ static void blender_camera_viewplane(BlenderCamera *bcam, int width, int height,
if(bcam->type == CAMERA_PANORAMA) {
/* set viewplane */
*left = 0.0f;
*right = 1.0f;
*bottom = 0.0f;
*top = 1.0f;
*viewplane = bcam->pano_viewplane;
}
else {
/* set viewplane */
*left = -xaspect;
*right = xaspect;
*bottom = -yaspect;
*top = yaspect;
viewplane->left = -xaspect;
viewplane->right = xaspect;
viewplane->bottom = -yaspect;
viewplane->top = yaspect;
/* zoom for 3d camera view */
*left *= bcam->zoom;
*right *= bcam->zoom;
*bottom *= bcam->zoom;
*top *= bcam->zoom;
*viewplane = (*viewplane) * bcam->zoom;
/* modify viewplane with camera shift and 3d camera view offset */
float dx = 2.0f*(*aspectratio*bcam->shift.x + bcam->offset.x*xaspect*2.0f);
float dy = 2.0f*(*aspectratio*bcam->shift.y + bcam->offset.y*yaspect*2.0f);
*left += dx;
*right += dx;
*bottom += dy;
*top += dy;
viewplane->left += dx;
viewplane->right += dx;
viewplane->bottom += dy;
viewplane->top += dy;
}
}
@@ -281,7 +275,7 @@ static void blender_camera_sync(Camera *cam, BlenderCamera *bcam, int width, int
/* viewplane */
blender_camera_viewplane(bcam, width, height,
&cam->left, &cam->right, &cam->bottom, &cam->top, &aspectratio, &sensor_size);
&cam->viewplane, &aspectratio, &sensor_size);
/* sensor */
cam->sensorwidth = bcam->sensor_width;
@@ -314,10 +308,7 @@ static void blender_camera_sync(Camera *cam, BlenderCamera *bcam, int width, int
cam->shuttertime = bcam->shuttertime;
/* border */
cam->border_left = bcam->border_left;
cam->border_right = bcam->border_right;
cam->border_bottom = bcam->border_bottom;
cam->border_top = bcam->border_top;
cam->border = bcam->border;
/* set update flag */
if(cam->modified(prevcam))
@@ -340,10 +331,10 @@ void BlenderSync::sync_camera(BL::Object b_override, int width, int height)
/* border */
if(r.use_border()) {
bcam.border_left = r.border_min_x();
bcam.border_right = r.border_max_x();
bcam.border_bottom = r.border_min_y();
bcam.border_top = r.border_max_y();
bcam.border.left = r.border_min_x();
bcam.border.right = r.border_max_x();
bcam.border.bottom = r.border_min_y();
bcam.border.top = r.border_max_y();
}
/* camera object */
@@ -381,6 +372,9 @@ void BlenderSync::sync_camera_motion(BL::Object b_ob, int motion)
/* Sync 3D View Camera */
static void blender_camera_view_subset(BL::Scene b_scene, BL::Object b_ob, BL::SpaceView3D b_v3d,
BL::RegionView3D b_rv3d, int width, int height, BoundBox2D *view_box, BoundBox2D *cam_box);
static void blender_camera_from_view(BlenderCamera *bcam, BL::Scene b_scene, BL::SpaceView3D b_v3d, BL::RegionView3D b_rv3d, int width, int height, bool skip_panorama = false)
{
/* 3d view parameters */
@@ -396,6 +390,16 @@ static void blender_camera_from_view(BlenderCamera *bcam, BL::Scene b_scene, BL:
if(b_ob) {
blender_camera_from_object(bcam, b_ob, skip_panorama);
if(!skip_panorama && bcam->type == CAMERA_PANORAMA) {
/* in panorama camera view, we map viewplane to camera border */
BoundBox2D view_box, cam_box;
blender_camera_view_subset(b_scene, b_ob, b_v3d, b_rv3d, width, height,
&view_box, &cam_box);
bcam->pano_viewplane = view_box.make_relative_to(cam_box);
}
else {
/* magic zoom formula */
bcam->zoom = (float)b_rv3d.view_camera_zoom();
bcam->zoom = (1.41421f + bcam->zoom/50.0f);
@@ -406,6 +410,7 @@ static void blender_camera_from_view(BlenderCamera *bcam, BL::Scene b_scene, BL:
bcam->offset = get_float2(b_rv3d.view_camera_offset());
}
}
}
else if(b_rv3d.view_perspective() == BL::RegionView3D::view_perspective_ORTHO) {
/* orthographic view */
bcam->farclip *= 0.5f;
@@ -427,6 +432,37 @@ static void blender_camera_from_view(BlenderCamera *bcam, BL::Scene b_scene, BL:
bcam->matrix = transform_inverse(get_transform(b_rv3d.view_matrix()));
}
static void blender_camera_view_subset(BL::Scene b_scene, BL::Object b_ob, BL::SpaceView3D b_v3d,
BL::RegionView3D b_rv3d, int width, int height, BoundBox2D *view_box, BoundBox2D *cam_box)
{
BL::RenderSettings r = b_scene.render();
BoundBox2D cam, view;
float view_aspect, cam_aspect, sensor_size;
/* get viewport viewplane */
BlenderCamera view_bcam;
blender_camera_init(&view_bcam);
blender_camera_from_view(&view_bcam, b_scene, b_v3d, b_rv3d, width, height, true);
blender_camera_viewplane(&view_bcam, width, height,
&view, &view_aspect, &sensor_size);
/* get camera viewplane */
BlenderCamera cam_bcam;
blender_camera_init(&cam_bcam);
blender_camera_from_object(&cam_bcam, b_ob, true);
width = (int)(r.resolution_x()*r.resolution_percentage()/100);
height = (int)(r.resolution_y()*r.resolution_percentage()/100);
blender_camera_viewplane(&cam_bcam, width, height,
&cam, &cam_aspect, &sensor_size);
/* return */
*view_box = view * (1.0f/view_aspect);
*cam_box = cam * (1.0f/cam_aspect);
}
static void blender_camera_border(BlenderCamera *bcam, BL::Scene b_scene, BL::SpaceView3D b_v3d,
BL::RegionView3D b_rv3d, int width, int height)
{
@@ -442,10 +478,10 @@ static void blender_camera_border(BlenderCamera *bcam, BL::Scene b_scene, BL::Sp
* assume viewport has got correctly clamped border already
*/
if(b_v3d.use_render_border()) {
bcam->border_left = b_v3d.render_border_min_x();
bcam->border_right = b_v3d.render_border_max_x();
bcam->border_bottom = b_v3d.render_border_min_y();
bcam->border_top = b_v3d.render_border_max_y();
bcam->border.left = b_v3d.render_border_min_x();
bcam->border.right = b_v3d.render_border_max_x();
bcam->border.bottom = b_v3d.render_border_min_y();
bcam->border.top = b_v3d.render_border_max_y();
return;
}
@@ -458,60 +494,20 @@ static void blender_camera_border(BlenderCamera *bcam, BL::Scene b_scene, BL::Sp
if(!b_ob)
return;
bcam->border_left = r.border_min_x();
bcam->border_right = r.border_max_x();
bcam->border_bottom = r.border_min_y();
bcam->border_top = r.border_max_y();
bcam->border.left = r.border_min_x();
bcam->border.right = r.border_max_x();
bcam->border.bottom = r.border_min_y();
bcam->border.top = r.border_max_y();
float cam_left, cam_right, cam_bottom, cam_top;
float view_left, view_right, view_bottom, view_top;
float view_aspect, cam_aspect, sensor_size;
/* determine camera viewport subset */
BoundBox2D view_box, cam_box;
/* get viewport viewplane */
BlenderCamera view_bcam;
blender_camera_init(&view_bcam);
blender_camera_from_view(&view_bcam, b_scene, b_v3d, b_rv3d, width, height, true);
blender_camera_viewplane(&view_bcam, width, height,
&view_left, &view_right, &view_bottom, &view_top, &view_aspect, &sensor_size);
view_left /= view_aspect;
view_right /= view_aspect;
view_bottom /= view_aspect;
view_top /= view_aspect;
/* get camera viewplane */
BlenderCamera cam_bcam;
blender_camera_init(&cam_bcam);
blender_camera_from_object(&cam_bcam, b_ob, true);
width = (int)(r.resolution_x()*r.resolution_percentage()/100);
height = (int)(r.resolution_y()*r.resolution_percentage()/100);
blender_camera_viewplane(&cam_bcam, width, height,
&cam_left, &cam_right, &cam_bottom, &cam_top, &cam_aspect, &sensor_size);
cam_left /= cam_aspect;
cam_right /= cam_aspect;
cam_bottom /= cam_aspect;
cam_top /= cam_aspect;
blender_camera_view_subset(b_scene, b_ob, b_v3d, b_rv3d, width, height,
&view_box, &cam_box);
/* determine viewport subset matching camera border */
float tmp_left = ((cam_left - view_left) / (view_right - view_left));
float tmp_right = ((cam_right - view_left) / (view_right - view_left));
float tmp_bottom = ((cam_bottom - view_bottom) / (view_top - view_bottom));
float tmp_top = ((cam_top - view_bottom) / (view_top - view_bottom));
bcam->border_left = tmp_left + bcam->border_left*(tmp_right - tmp_left);
bcam->border_right = tmp_left + bcam->border_right*(tmp_right - tmp_left);
bcam->border_bottom = tmp_bottom + bcam->border_bottom*(tmp_top - tmp_bottom);
bcam->border_top = tmp_bottom + bcam->border_top*(tmp_top - tmp_bottom);
/* clamp */
bcam->border_left = clamp(bcam->border_left, 0.0f, 1.0f);
bcam->border_right = clamp(bcam->border_right, 0.0f, 1.0f);
bcam->border_bottom = clamp(bcam->border_bottom, 0.0f, 1.0f);
bcam->border_top = clamp(bcam->border_top, 0.0f, 1.0f);
cam_box = cam_box.make_relative_to(view_box);
bcam->border = cam_box.subset(bcam->border).clamp();
}
void BlenderSync::sync_view(BL::SpaceView3D b_v3d, BL::RegionView3D b_rv3d, int width, int height)
@@ -539,10 +535,10 @@ BufferParams BlenderSync::get_buffer_params(BL::Scene b_scene, BL::SpaceView3D b
if(use_border) {
/* border render */
params.full_x = cam->border_left*width;
params.full_y = cam->border_bottom*height;
params.width = (int)(cam->border_right*width) - params.full_x;
params.height = (int)(cam->border_top*height) - params.full_y;
params.full_x = cam->border.left*width;
params.full_y = cam->border.bottom*height;
params.width = (int)(cam->border.right*width) - params.full_x;
params.height = (int)(cam->border.top*height) - params.full_y;
/* survive in case border goes out of view or becomes too small */
params.width = max(params.width, 1);

28
intern/cycles/render/camera.cpp
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@@ -55,15 +55,10 @@ Camera::Camera()
width = 1024;
height = 512;
left = -((float)width/(float)height);
right = (float)width/(float)height;
bottom = -1.0f;
top = 1.0f;
border_left = 0.0f;
border_right = 1.0f;
border_bottom = 0.0f;
border_top = 1.0f;
viewplane.left = -((float)width/(float)height);
viewplane.right = (float)width/(float)height;
viewplane.bottom = -1.0f;
viewplane.top = 1.0f;
screentoworld = transform_identity();
rastertoworld = transform_identity();
@@ -97,8 +92,9 @@ void Camera::update()
Transform screentoraster = ndctoraster;
screentoraster = ndctoraster *
transform_scale(1.0f/(right - left), 1.0f/(top - bottom), 1.0f) *
transform_translate(-left, -bottom, 0.0f);
transform_scale(1.0f/(viewplane.right - viewplane.left),
1.0f/(viewplane.top - viewplane.bottom), 1.0f) *
transform_translate(-viewplane.left, -viewplane.bottom, 0.0f);
Transform rastertoscreen = transform_inverse(screentoraster);
@@ -265,14 +261,8 @@ bool Camera::modified(const Camera& cam)
// modified for progressive render
// (width == cam.width) &&
// (height == cam.height) &&
(left == cam.left) &&
(right == cam.right) &&
(bottom == cam.bottom) &&
(top == cam.top) &&
(border_left == cam.border_left) &&
(border_right == cam.border_right) &&
(border_bottom == cam.border_bottom) &&
(border_top == cam.border_top) &&
(viewplane == cam.viewplane) &&
(border == cam.border) &&
(matrix == cam.matrix) &&
(panorama_type == cam.panorama_type) &&
(fisheye_fov == cam.fisheye_fov) &&

5
intern/cycles/render/camera.h
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@@ -21,6 +21,7 @@
#include "kernel_types.h"
#include "util_boundbox.h"
#include "util_transform.h"
#include "util_types.h"
@@ -65,10 +66,10 @@ public:
/* screen */
int width, height;
float left, right, bottom, top;
BoundBox2D viewplane;
/* border */
float border_left, border_right, border_bottom, border_top;
BoundBox2D border;
/* transformation */
Transform matrix;

71
intern/cycles/util/util_boundbox.h
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@@ -31,6 +31,8 @@ using namespace std;
CCL_NAMESPACE_BEGIN
/* 3D BoundBox */
class BoundBox
{
public:
@@ -160,6 +162,75 @@ __forceinline BoundBox intersect(const BoundBox& a, const BoundBox& b, const Bou
return intersect(a, intersect(b, c));
}
/* 2D BoundBox */
class BoundBox2D {
public:
float left;
float right;
float bottom;
float top;
BoundBox2D()
: left(0.0f), right(1.0f), bottom(0.0f), top(1.0f)
{
}
bool operator==(const BoundBox2D& other) const
{
return (left == other.left && right == other.right &&
bottom == other.bottom && top == other.top);
}
BoundBox2D operator*(float f) const
{
BoundBox2D result;
result.left = left*f;
result.right = right*f;
result.bottom = bottom*f;
result.top = top*f;
return result;
}
BoundBox2D subset(const BoundBox2D& other) const
{
BoundBox2D subset;
subset.left = left + other.left*(right - left);
subset.right = left + other.right*(right - left);
subset.bottom = bottom + other.bottom*(top - bottom);
subset.top = bottom + other.top*(top - bottom);
return subset;
}
BoundBox2D make_relative_to(const BoundBox2D& other) const
{
BoundBox2D result;
result.left = ((left - other.left) / (other.right - other.left));
result.right = ((right - other.left) / (other.right - other.left));
result.bottom = ((bottom - other.bottom) / (other.top - other.bottom));
result.top = ((top - other.bottom) / (other.top - other.bottom));
return result;
}
BoundBox2D clamp(float mn = 0.0f, float mx = 1.0f)
{
BoundBox2D result;
result.left = ccl::clamp(left, mn, mx);
result.right = ccl::clamp(right, mn, mx);
result.bottom = ccl::clamp(bottom, mn, mx);
result.top = ccl::clamp(top, mn, mx);
return result;
}
};
CCL_NAMESPACE_END
#endif /* __UTIL_BOUNDBOX_H__ */