eaa87101cd
With the ultimate goal of simplifying drawing and evaluation, this patch makes the following changes and removes code: - Use `Mesh` instead of `DispList` for evaluated basis metaballs. - Remove all `DispList` drawing code, which is now unused. - Simplify code that converts evaluated metaballs to meshes. - Store the evaluated mesh in the evaluated geometry set. This has the following indirect benefits: - Evaluated meshes from metaball objects can be used in geometry nodes. - Renderers can ignore evaluated metaball objects completely - Cycles rendering no longer has to convert to mesh from `DispList`. - We get closer to removing `DispList` completely. - Optimizations to mesh rendering will also apply to metaball objects. The vertex normals on the evaluated mesh are technically invalid; the regular calculation wouldn't reproduce them. Metaball objects don't support modifiers though, so it shouldn't be a problem. Eventually we can support per-vertex custom normals (T93551). Differential Revision: https://developer.blender.org/D14593
49 lines
1.1 KiB
C
49 lines
1.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later
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* Copyright 2009 Blender Foundation. All rights reserved. */
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/** \file
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* \ingroup RNA
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include "RNA_define.h"
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#include "BLI_sys_types.h"
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#include "BLI_utildefines.h"
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#include "BKE_mball.h"
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#include "rna_internal.h" /* own include */
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#ifdef RNA_RUNTIME
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static void rna_Meta_transform(struct MetaBall *mb, float mat[16])
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{
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BKE_mball_transform(mb, (float(*)[4])mat, true);
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DEG_id_tag_update(&mb->id, 0);
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}
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static void rna_Mball_update_gpu_tag(MetaBall *mb)
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{
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DEG_id_tag_update(&mb->id, ID_RECALC_SHADING);
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}
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#else
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void RNA_api_meta(StructRNA *srna)
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{
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FunctionRNA *func;
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PropertyRNA *parm;
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func = RNA_def_function(srna, "transform", "rna_Meta_transform");
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RNA_def_function_ui_description(func, "Transform metaball elements by a matrix");
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parm = RNA_def_float_matrix(func, "matrix", 4, 4, NULL, 0.0f, 0.0f, "", "Matrix", 0.0f, 0.0f);
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RNA_def_parameter_flags(parm, 0, PARM_REQUIRED);
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RNA_def_function(srna, "update_gpu_tag", "rna_Mball_update_gpu_tag");
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}
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#endif
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