Misaki/SimpleRayTracing
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Refactor camera system to use quaternion rotations

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Added quaternion and vector structures from the cglm library for handling 3D rotations and directions.
Added a new function `euler_to_quat` to convert Euler angles to a quaternion representation.
Changed the `camera_t` structure to replace separate forward, up, and right vectors with a single rotation quaternion.
Changed the `camera_create` function to accept a rotation quaternion instead of separate direction vectors.
Changed the `scene_init` function to initialize the camera with a default rotation quaternion.
Changed the `ensure_camera_aspect_ratio` function to maintain the camera's rotation quaternion.
Changed the `screen_render_pixel`, `scene_render_tile`, and `scene_render` functions to compute camera coordinates based on the quaternion rotation.
This commit is contained in:
Misaki
2025-04-22 17:26:04 +09:00
parent e49004e6a2
commit 9cc420693c
5 changed files with 38 additions and 27 deletions
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6
source/Rendering/Camera.c
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@@ -1,13 +1,11 @@
#include "Rendering/Camera.h"
camera_t camera_create(vec3s position, vec3s forward, vec3s up, float focal_length, float size_x, float aspect_ratio)
camera_t camera_create(vec3s position, versors rotation, float focal_length, float size_x, float aspect_ratio)
{
camera_t camera =
{
.position = position,
.forward = glms_vec3_normalize(forward),
.up = glms_vec3_normalize(up),
.right = glms_vec3_cross(forward, up), // Assuming forward and up are not parallel
.rotation = rotation,
.focal_length = focal_length,
.size_x = size_x,
.size_y = size_x / aspect_ratio,