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draw: draw_distance for 3d spaces, proper positioning of skybox according to it, scenery demo on circle rasters

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veclavtalica
2025-02-26 15:53:59 +03:00
parent 23fbd45564
commit 8c0f43ec34
9 changed files with 123 additions and 80 deletions
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18
include/twn_draw.h
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@ -86,11 +86,12 @@ TWN_API void draw_camera_2d(Vec2 position, /* optional, default: (0, 0) */
/* sets a perspective 3d camera to be used for all 3d commands */
/* fov = 0 corresponds to orthographic projection */
TWN_API void draw_camera(Vec3 position,
TWN_API void draw_camera(Vec3 position, /* optional, default: (0, 0, 0) */
Vec3 direction, /* optional, default: (0, 0, -1) */
Vec3 up, /* optional, default: (0, 1, 0) */
float fov, /* optional, default: PI / 6 * 3 (90 degrees) */
float zoom); /* optional, default: 1 */
float zoom, /* optional, default: 1 */
float draw_distance); /* optional, default: 100 */
/* same as draw_camera(), but with first person controller in mind */
/* direction and up vectors are inferred from roll, pitch and yaw parameters (in radians) */
@ -100,12 +101,13 @@ typedef struct DrawCameraFromPrincipalAxesResult {
Vec3 up;
} DrawCameraFromPrincipalAxesResult;
TWN_API DrawCameraFromPrincipalAxesResult
draw_camera_from_principal_axes(Vec3 position,
float roll, /* optional, default: 0 */
float pitch, /* optional, default: 0 */
float yaw, /* optional, default: 0 */
float fov, /* optional, default: PI / 6 * 3 (90 degrees) */
float zoom); /* optional, default: 1 */
draw_camera_from_principal_axes(Vec3 position, /* optional, default: (0, 0, 0) */
float roll, /* optional, default: 0 */
float pitch, /* optional, default: 0 */
float yaw, /* optional, default: 0 */
float fov, /* optional, default: PI / 6 * 3 (90 degrees) */
float zoom, /* optional, default: 1 */
float draw_distance); /* optional, default: 100 */
/* expects '*' masks that will be expanded to 6 names: 'up', 'down', 'east', 'west', 'north' and 'south' */
TWN_API void draw_skybox(const char *textures);