williamjcm/small3dlib
1
0
Fork 0
mirror of https://git.coom.tech/drummyfish/small3dlib.git synced 2024-11-21 20:39:57 +01:00
Code Activity

Texture the cube correctly

Browse source
This commit is contained in:
Miloslav Číž 2019-05-07 21:14:42 +02:00
parent 8d7316baad
commit fb9f7c6b10
2 changed files with 22 additions and 20 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
s3l.h
View file

@ -1011,7 +1011,9 @@ static inline void S3L_mapCameraToScreen(S3L_Vec4 point, S3L_Camera *camera,
/* /*
Helper function to interpolate texture coordinates based on barycentric Helper function to interpolate texture coordinates based on barycentric
coordinates. coordinates. If you're going for max performance, you may want to compute
these values yourself -- some specific cases may be possible to compute
faster.
*/ */
void S3L_interpolateTexCoords( void S3L_interpolateTexCoords(

38
testSDL.c
View file

@ -42,18 +42,18 @@ S3L_Unit ver[] =
S3L_Unit tex_coords[] = S3L_Unit tex_coords[] =
{ {
16,0, 0,0, 16,16, 1,1, 0,0, 1,0,
16,0, 0,0, 16,16, 1,1, 0,1, 0,0,
16,0, 0,0, 16,16, 1,0, 1,1, 0,1,
16,0, 0,0, 16,16, 1,0, 0,1, 0,0,
16,0, 0,0, 16,16, 0,0, 1,0, 1,1,
16,0, 0,0, 16,16, 1,1, 0,1, 0,0,
16,0, 0,0, 16,16, 0,1, 0,0, 1,0,
16,0, 0,0, 16,16, 0,1, 1,0, 1,1,
16,0, 0,0, 16,16, 1,1, 0,0, 1,0,
16,0, 0,0, 16,16, 1,1, 0,1, 0,0,
16,0, 0,0, 16,16, 0,1, 1,0, 1,1,
16,0, 0,0, 16,16 0,1, 0,0, 1,0
}; };
#undef S #undef S
@ -140,9 +140,9 @@ void drawPixel(S3L_PixelInfo *p)
coords = tex_coords + p->triangleID * 6; coords = tex_coords + p->triangleID * 6;
S3L_interpolateTexCoords( S3L_interpolateTexCoords(
coords[0],coords[1], coords[0] * 16,coords[1] * 16,
coords[2],coords[3], coords[2] * 16,coords[3] * 16,
coords[4],coords[5], coords[4] * 16,coords[5] * 16,
p, p,
&u,&v); &u,&v);
@ -161,8 +161,8 @@ void draw()
{ {
clearScreen(); clearScreen();
// modelTransform.rotation.z = frame * 0.2; modelTransform.rotation.z = frame * 0.1;
// modelTransform.rotation.x = frame * 0.1; modelTransform.rotation.x = frame * 0.3;
S3L_drawModelIndexed(ver,tri,12,modelTransform,camera,conf); S3L_drawModelIndexed(ver,tri,12,modelTransform,camera,conf);
@ -219,8 +219,8 @@ int main()
camera.resolutionX = SCREEN_WIDTH; camera.resolutionX = SCREEN_WIDTH;
camera.resolutionY = SCREEN_HEIGHT; camera.resolutionY = SCREEN_HEIGHT;
camera.transform.translation.z = -S3L_FRACTIONS_PER_UNIT * 2; camera.transform.translation.z = -S3L_FRACTIONS_PER_UNIT * 2;
camera.transform.translation.x = S3L_FRACTIONS_PER_UNIT; // camera.transform.translation.x = S3L_FRACTIONS_PER_UNIT;
camera.transform.translation.y = S3L_FRACTIONS_PER_UNIT; // camera.transform.translation.y = S3L_FRACTIONS_PER_UNIT;
S3L_initTransoform3D(&modelTransform); S3L_initTransoform3D(&modelTransform);
S3L_initDrawConfig(&conf); S3L_initDrawConfig(&conf);