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Add hotfix of a bug

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This commit is contained in:
Miloslav Ciz 2022-09-26 18:43:25 +02:00
parent e1d5e0b503
commit f975e390f0
2 changed files with 19 additions and 2 deletions

2
programs/make.sh
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@ -14,7 +14,7 @@ link=""
clear clear
clear clear
flags="-x c -g -O3 -std=c99 -pedantic -Wall -Wextra -o $1 $1.c -lSDL2" flags="-x c -g -lm -O3 -std=c99 -pedantic -Wall -Wextra -o $1 $1.c -lSDL2"
compiler=gcc compiler=gcc
#compiler=clang #compiler=clang

19
small3dlib.h
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@ -10,7 +10,7 @@
license: CC0 1.0 (public domain) license: CC0 1.0 (public domain)
found at https://creativecommons.org/publicdomain/zero/1.0/ found at https://creativecommons.org/publicdomain/zero/1.0/
+ additional waiver of all IP + additional waiver of all IP
version: 0.903d version: 0.904d
Before including the library, define S3L_PIXEL_FUNCTION to the name of the Before including the library, define S3L_PIXEL_FUNCTION to the name of the
function you'll be using to draw single pixels (this function will be called function you'll be using to draw single pixels (this function will be called
@ -1678,6 +1678,23 @@ void S3L_project3DPointToScreen(
S3L_Camera camera, S3L_Camera camera,
S3L_Vec4 *result) S3L_Vec4 *result)
{ {
// TODO: hotfix to prevent a mapping bug probably to overlfows
S3L_Vec4 toPoint = point, camForw;
S3L_vec3Sub(&toPoint,camera.transform.translation);
S3L_vec3Normalize(&toPoint);
S3L_rotationToDirections(camera.transform.rotation,S3L_FRACTIONS_PER_UNIT,
&camForw,0,0);
if (S3L_vec3Dot(toPoint,camForw) < S3L_FRACTIONS_PER_UNIT / 6)
{
result->z = -1;
result->w = 0;
return;
}
// end of hotfix
S3L_Mat4 m; S3L_Mat4 m;
S3L_makeCameraMatrix(camera.transform,m); S3L_makeCameraMatrix(camera.transform,m);