1c0f374ec3
The `object_to_world` and `world_to_object` matrices are set during depsgraph evaluation, calculated from the object's animated location, rotation, scale, parenting, and constraints. It's confusing and unnecessary to store them with the original data in DNA. This commit moves them to `ObjectRuntime` and moves the matrices to use the C++ `float4x4` type, giving the potential for simplified code using the C++ abstractions. The matrices are accessible with functions on `Object` directly since they are used so commonly. Though for write access, directly using the runtime struct is necessary. The inverse `world_to_object` matrix is often calculated before it's used, even though it's calculated as part of depsgraph evaluation. Long term we might not want to store this in `ObjectRuntime` at all, and just calculate it on demand. Or at least we should remove the redundant calculations. That should be done separately though. Pull Request: https://projects.blender.org/blender/blender/pulls/118210
61 lines
1.6 KiB
C
61 lines
1.6 KiB
C
/* SPDX-FileCopyrightText: 2018 Blender Authors
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*
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* SPDX-License-Identifier: GPL-2.0-or-later */
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/** \file
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* \ingroup bke
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*/
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#pragma once
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct CurveMapping;
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typedef struct ParticleChildModifierContext {
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ParticleThreadContext *thread_ctx;
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ParticleSimulationData *sim;
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ParticleTexture *ptex;
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ChildParticle *cpa;
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const float *par_co; /* float3 */
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const float *par_vel; /* float3 */
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const float *par_rot; /* float4 */
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const float *par_orco; /* float3 */
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const float *orco; /* float3 */
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ParticleCacheKey *parent_keys;
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} ParticleChildModifierContext;
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void do_kink(ParticleKey *state,
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const float par_co[3],
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const float par_vel[3],
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const float par_rot[4],
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float time,
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float freq,
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float shape,
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float amplitude,
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float flat,
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short type,
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short axis,
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const float obmat[4][4],
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int smooth_start);
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float do_clump(ParticleKey *state,
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const float par_co[3],
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float time,
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const float orco_offset[3],
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float clumpfac,
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float clumppow,
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float pa_clump,
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bool use_clump_noise,
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float clump_noise_size,
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const struct CurveMapping *clumpcurve);
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void do_child_modifiers(const ParticleChildModifierContext *modifier_ctx,
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float mat[4][4],
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ParticleKey *state,
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float t);
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#ifdef __cplusplus
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}
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#endif
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