Particle: Remove Billboard Particle code

The billboard particles were only used by Blender Internal. So until it is
supported by Cycles of Eevee there is no reason to keep it in the code and
UI.

Fix T61695 Billboard particles not displaying in Eevee viewport, render

1 files changed, 0 insertions, 84 deletions

diff --git a/source/blender/blenkernel/intern/particle.c b/source/blender/blenkernel/intern/particle.c
index da2975d8efc..bdf0b239917 100644
--- a/source/blender/blenkernel/intern/particle.c
+++ b/source/blender/blenkernel/intern/particle.c
@@ -3150,8 +3150,6 @@ static void default_particle_settings(ParticleSettings *part)
 	part->draw_as = PART_DRAW_REND;
 	part->ren_as = PART_DRAW_HALO;
 	part->bb_uv_split = 1;
-	part->bb_align = PART_BB_VIEW;
-	part->bb_split_offset = PART_BB_OFF_LINEAR;
 	part->flag = PART_EDISTR | PART_TRAND | PART_HIDE_ADVANCED_HAIR;
 
 	part->sta = 1.0;
@@ -4207,88 +4205,6 @@ void psys_get_dupli_path_transform(ParticleSimulationData *sim, ParticleData *pa
 	*scale = len;
 }
 
-void psys_make_billboard(ParticleBillboardData *bb, float xvec[3], float yvec[3], float zvec[3], float center[3])
-{
-	float onevec[3] = {0.0f, 0.0f, 0.0f}, tvec[3], tvec2[3];
-
-	xvec[0] = 1.0f; xvec[1] = 0.0f; xvec[2] = 0.0f;
-	yvec[0] = 0.0f; yvec[1] = 1.0f; yvec[2] = 0.0f;
-
-	/* can happen with bad pointcache or physics calculation
-	 * since this becomes geometry, nan's and inf's crash raytrace code.
-	 * better not allow this. */
-	if (!is_finite_v3(bb->vec) || !is_finite_v3(bb->vec)) {
-		zero_v3(bb->vec);
-		zero_v3(bb->vel);
-
-		zero_v3(xvec);
-		zero_v3(yvec);
-		zero_v3(zvec);
-		zero_v3(center);
-
-		return;
-	}
-
-	if (bb->align < PART_BB_VIEW)
-		onevec[bb->align] = 1.0f;
-
-	if (bb->lock && (bb->align == PART_BB_VIEW)) {
-		normalize_v3_v3(xvec, bb->ob->obmat[0]);
-		normalize_v3_v3(yvec, bb->ob->obmat[1]);
-		normalize_v3_v3(zvec, bb->ob->obmat[2]);
-	}
-	else if (bb->align == PART_BB_VEL) {
-		float temp[3];
-
-		normalize_v3_v3(temp, bb->vel);
-
-		sub_v3_v3v3(zvec, bb->ob->obmat[3], bb->vec);
-
-		if (bb->lock) {
-			float fac = -dot_v3v3(zvec, temp);
-
-			madd_v3_v3fl(zvec, temp, fac);
-		}
-		normalize_v3(zvec);
-
-		cross_v3_v3v3(xvec, temp, zvec);
-		normalize_v3(xvec);
-
-		cross_v3_v3v3(yvec, zvec, xvec);
-	}
-	else {
-		sub_v3_v3v3(zvec, bb->ob->obmat[3], bb->vec);
-		if (bb->lock)
-			zvec[bb->align] = 0.0f;
-		normalize_v3(zvec);
-
-		if (bb->align < PART_BB_VIEW)
-			cross_v3_v3v3(xvec, onevec, zvec);
-		else
-			cross_v3_v3v3(xvec, bb->ob->obmat[1], zvec);
-		normalize_v3(xvec);
-
-		cross_v3_v3v3(yvec, zvec, xvec);
-	}
-
-	copy_v3_v3(tvec, xvec);
-	copy_v3_v3(tvec2, yvec);
-
-	mul_v3_fl(xvec, cosf(bb->tilt * (float)M_PI));
-	mul_v3_fl(tvec2, sinf(bb->tilt * (float)M_PI));
-	add_v3_v3(xvec, tvec2);
-
-	mul_v3_fl(yvec, cosf(bb->tilt * (float)M_PI));
-	mul_v3_fl(tvec, -sinf(bb->tilt * (float)M_PI));
-	add_v3_v3(yvec, tvec);
-
-	mul_v3_fl(xvec, bb->size[0]);
-	mul_v3_fl(yvec, bb->size[1]);
-
-	madd_v3_v3v3fl(center, bb->vec, xvec, bb->offset[0]);
-	madd_v3_v3fl(center, yvec, bb->offset[1]);
-}
-
 void psys_apply_hair_lattice(Depsgraph *depsgraph, Scene *scene, Object *ob, ParticleSystem *psys)
 {
 	ParticleSimulationData sim = {0};