Moved the cloth solver code into a new subfolder/library inside Blender

code.

The implicit solver itself should remain agnostic to the specifics of
the Blender data (cloth vs. hair). This way we could avoid the bloated
data conversion chain from particles/hair to derived mesh to cloth
modifier to implicit solver data and back. Every step in this chain adds
overhead as well as rounding errors and a possibility for bugs, not to
speak of making the code horribly complicated.

The new subfolder is named "physics" since it should be the start of a
somewhat "unified" physics systems combining all the various solvers in
the same place and managing things like synchronized time steps.

1 files changed, 38 insertions, 0 deletions

diff --git a/source/blender/physics/BPH_mass_spring.h b/source/blender/physics/BPH_mass_spring.h
new file mode 100644
index 00000000000..2960082852f
--- /dev/null
+++ b/source/blender/physics/BPH_mass_spring.h
@@ -0,0 +1,38 @@
+/*
+ * ***** BEGIN GPL LICENSE BLOCK *****
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * The Original Code is Copyright (C) Blender Foundation
+ * All rights reserved.
+ *
+ * The Original Code is: all of this file.
+ *
+ * Contributor(s): Lukas Toenne
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+
+#ifndef __BPH_MASS_SPRING_H__
+#define __BPH_MASS_SPRING_H__
+
+int implicit_init (struct Object *ob, struct ClothModifierData *clmd );
+int implicit_free (struct ClothModifierData *clmd );
+int implicit_solver (struct Object *ob, float frame, struct ClothModifierData *clmd, struct ListBase *effectors );
+void implicit_set_positions (struct ClothModifierData *clmd );
+
+bool implicit_hair_volume_get_texture_data(struct Object *UNUSED(ob), struct ClothModifierData *clmd, struct ListBase *UNUSED(effectors), struct VoxelData *vd);
+
+#endif