diff options
| -rw-r--r-- | src/modules/flow/flow.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/src/modules/flow/flow.c b/src/modules/flow/flow.c index ddbae52..431a839 100644 --- a/src/modules/flow/flow.c +++ b/src/modules/flow/flow.c @@ -98,9 +98,11 @@ static inline flow_element_t rand_element(unsigned *seed) { flow_element_t e = { .lifetime = rand_within_range(seed, .5f, 20.f), - .position_a = v3f_rand(seed, -1.f, 1.f), + .position_a = v3f_rand(seed, 0.f, 1.f), }; + e.position_a.x = e.position_a.x * 2.f - 1.f; + e.position_a.y = e.position_a.y * 2.f - 1.f; e.position_b = e.position_a; return e; @@ -236,7 +238,7 @@ static void flow_render_fragment(til_module_context_t *context, til_stream_t *st if (e->position_b.x < -1.f || e->position_b.x > 1.f || e->position_b.y < -1.f || e->position_b.y > 1.f || - e->position_b.z < -1.f || e->position_b.z > 1.f) + e->position_b.z < 0.f || e->position_b.z > 1.f) *e = rand_element(&ctxt->til_module_context.seed); pos = e->position_a = e->position_b; @@ -245,7 +247,7 @@ static void flow_render_fragment(til_module_context_t *context, til_stream_t *st &(v3f_t){ /* FIXME TODO: just make ff.[ch] use a -1..+1 coordinate system */ .x = pos.x * .5f + .5f, .y = pos.y * .5f + .5f, - .z = pos.z * .5f + .5f, + .z = pos.z, }, w); e->color = d.color; d.direction = v3f_mult_scalar(&d.direction, .001f); /* XXX FIXME: magic number alert! */ @@ -346,7 +348,7 @@ static void flow_render_fragment(til_module_context_t *context, til_stream_t *st pos = v3f_add(&pos, &v); x1 = pos.x / (pos.z + ZCONST) * ffw + (ffw >> 1); - y1 = pos.y / (pos.z + ZCONST) * ffh + (ffh >> 1) ; + y1 = pos.y / (pos.z + ZCONST) * ffh + (ffh >> 1); (void) til_fb_fragment_put_pixel_checked(fragment, TIL_FB_DRAW_FLAG_TEXTURABLE, x1, y1, pixel); } |