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-rw-r--r--modules/ray/ray_camera.h77
1 files changed, 0 insertions, 77 deletions
diff --git a/modules/ray/ray_camera.h b/modules/ray/ray_camera.h
deleted file mode 100644
index 387f8c5..0000000
--- a/modules/ray/ray_camera.h
+++ /dev/null
@@ -1,77 +0,0 @@
-#ifndef _RAY_CAMERA_H
-#define _RAY_CAMERA_H
-
-#include <math.h>
-
-#include "fb.h"
-
-#include "ray_3f.h"
-#include "ray_euler.h"
-#include "ray_ray.h"
-
-
-typedef struct ray_camera_t {
- ray_3f_t position; /* position of camera, the origin of all its rays */
- ray_euler_t orientation; /* orientation of the camera */
- float focal_length; /* controls the field of view */
- unsigned width; /* width of camera viewport in pixels */
- unsigned height; /* height of camera viewport in pixels */
-} ray_camera_t;
-
-
-typedef struct ray_camera_frame_t {
- ray_camera_t *camera; /* the camera supplied to frame_begin() */
- fb_fragment_t *fragment; /* the fragment supplied to frame_begin() */
- ray_ray_t *ray; /* the ray supplied to frame_begin(), which gets updated as we step through the frame. */
-
- ray_3f_t nw, ne, sw, se; /* directions pointing through the corners of the frame fragment */
- ray_3f_t cur_w, cur_e; /* current row's west and east ends */
- float x_alpha, y_alpha; /* interpolation position along the x and y axis */
- float x_delta, y_delta; /* interpolation step delta along the x and y axis */
- unsigned x, y; /* integral position within frame fragment */
-} ray_camera_frame_t;
-
-
-void ray_camera_frame_begin(ray_camera_t *camera, fb_fragment_t *fragment, ray_ray_t *ray, ray_camera_frame_t *frame);
-
-
-/* Step the ray through the frame on the x axis, returns 1 when rays remain on this axis, 0 at the end. */
-/* When 1 is returned, frame->ray is left pointing through the new coordinate. */
-static inline int ray_camera_frame_x_step(ray_camera_frame_t *frame)
-{
- frame->x++;
-
- if (frame->x >= frame->fragment->width) {
- frame->x = 0;
- frame->x_alpha = frame->x_delta * (float)frame->fragment->x;
- return 0;
- }
-
- frame->x_alpha += frame->x_delta;
- frame->ray->direction = ray_3f_nlerp(&frame->cur_w, &frame->cur_e, frame->x_alpha);
-
- return 1;
-}
-
-
-/* Step the ray through the frame on the y axis, returns 1 when rays remain on this axis, 0 at the end. */
-/* When 1 is returned, frame->ray is left pointing through the new coordinate. */
-static inline int ray_camera_frame_y_step(ray_camera_frame_t *frame)
-{
- frame->y++;
-
- if (frame->y >= frame->fragment->height) {
- frame->y = 0;
- frame->y_alpha = frame->y_delta * (float)frame->fragment->y;
- return 0;
- }
-
- frame->y_alpha += frame->y_delta;
- frame->cur_w = ray_3f_nlerp(&frame->nw, &frame->sw, frame->y_alpha);
- frame->cur_e = ray_3f_nlerp(&frame->ne, &frame->se, frame->y_alpha);
- frame->ray->direction = frame->cur_w;
-
- return 1;
-}
-
-#endif
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