diff options
author | Wayde Moss <GuiltyGhost> | 2021-05-11 23:04:18 +0300 |
---|---|---|
committer | Wayde Moss <wbmoss_dev@yahoo.com> | 2021-05-12 05:00:07 +0300 |
commit | cbeeca8167f840798a0977906be911a09e7a63dd (patch) | |
tree | a5629440d37085fda062d3733120276d4595ce3a /source | |
parent | 65244ac1c3f13802852d5ca2e340b85cc3e94c7a (diff) |
NLA: Extract ..get_inverted_upper_snapshot()
Extracts `nlasnapshot_blend_get_inverted_upper_snapshot()` from
`BKE_animsys_nla_remap_keyframe_values()`
This introduces a new struct member:
`NlaEvalChannelSnapshot->remap_domain` and marks which values of
`blended_snapshot` are processed for remapping/used-for-inverting.
Effectively, it marks which values have successfully been remapped and
can be further used for remapping.
`nlasnapshot_blend_get_inverted_upper_snapshot()`:
output snapshot `r_upper_snapshot` has each channel's `remap_domain`
written to which effectively marks the successfully remapped values.
The only reason a value is not in the remap domain is if inversion
failed or it wasn't marked to be remapped.
`..get_inverted_upper_snapshot()` has a variant `nlasnapshot_blend()`
from {D10220}, but this patch doesn't depend on it at all. A third
variant will later be added `..get_inverted_lower_snapshot()`.
Altogether, these three functions allow solving for any of
(lower_snapshot, upper_snapshot, blended_snapshot) given the other two.
The function `..get_inverted_lower_snapshot()` will also similarly
process the remap domain of the blended and lower snapshot.
added assertions within `nlasnapshot_blend()` and
`..get_inverted_upper_snapshot()` to future proof branches dealing with
blendmode and mixmodes. (suggested by sybren)
No user functional changes
Reviewed By: sybren
Differential Revision: https://developer.blender.org/D10222
Diffstat (limited to 'source')
-rw-r--r-- | source/blender/blenkernel/intern/anim_sys.c | 509 | ||||
-rw-r--r-- | source/blender/blenkernel/nla_private.h | 11 |
2 files changed, 431 insertions, 89 deletions
diff --git a/source/blender/blenkernel/intern/anim_sys.c b/source/blender/blenkernel/intern/anim_sys.c index 6f4af6f655d..564b5c9399a 100644 --- a/source/blender/blenkernel/intern/anim_sys.c +++ b/source/blender/blenkernel/intern/anim_sys.c @@ -1040,6 +1040,7 @@ static NlaEvalChannelSnapshot *nlaevalchan_snapshot_new(NlaEvalChannel *nec) nec_snapshot->channel = nec; nec_snapshot->length = length; nlavalidmask_init(&nec_snapshot->blend_domain, length); + nlavalidmask_init(&nec_snapshot->remap_domain, length); return nec_snapshot; } @@ -1050,6 +1051,7 @@ static void nlaevalchan_snapshot_free(NlaEvalChannelSnapshot *nec_snapshot) BLI_assert(!nec_snapshot->is_base); nlavalidmask_free(&nec_snapshot->blend_domain); + nlavalidmask_free(&nec_snapshot->remap_domain); MEM_freeN(nec_snapshot); } @@ -1650,6 +1652,355 @@ static bool nla_combine_quaternion_get_inverted_strip_values(const float lower_v } /* ---------------------- */ + +/* Assert necs and necs->channel is nonNull. */ +static void nlaevalchan_assert_nonNull(NlaEvalChannelSnapshot *necs) +{ + UNUSED_VARS_NDEBUG(necs); + BLI_assert(necs != NULL && necs->channel != NULL); +} + +/* Assert that the channels given can be blended or combined together. */ +static void nlaevalchan_assert_blendOrcombine_compatible(NlaEvalChannelSnapshot *lower_necs, + NlaEvalChannelSnapshot *upper_necs, + NlaEvalChannelSnapshot *blended_necs) +{ + UNUSED_VARS_NDEBUG(lower_necs, upper_necs, blended_necs); + BLI_assert(!ELEM(NULL, lower_necs, blended_necs)); + BLI_assert(upper_necs == NULL || lower_necs->length == upper_necs->length); + BLI_assert(lower_necs->length == blended_necs->length); +} + +/* Assert that the channels given can be blended or combined together as a quaternion. */ +static void nlaevalchan_assert_blendOrcombine_compatible_quaternion( + NlaEvalChannelSnapshot *lower_necs, + NlaEvalChannelSnapshot *upper_necs, + NlaEvalChannelSnapshot *blended_necs) +{ + nlaevalchan_assert_blendOrcombine_compatible(lower_necs, upper_necs, blended_necs); + BLI_assert(lower_necs->length == 4); +} + +static void nlaevalchan_copy_values(NlaEvalChannelSnapshot *dst, NlaEvalChannelSnapshot *src) +{ + memcpy(dst->values, src->values, src->length * sizeof(float)); +} + +/** Copies lower necs to blended necs if upper necs is NULL or has zero influence. + * \return true if copied. */ +static bool nlaevalchan_blendOrcombine_try_copy_lower(NlaEvalChannelSnapshot *lower_necs, + NlaEvalChannelSnapshot *upper_necs, + const float upper_influence, + NlaEvalChannelSnapshot *r_blended_necs) +{ + const bool has_influence = !IS_EQF(upper_influence, 0.0f); + if (upper_necs != NULL && has_influence) { + return false; + } + + nlaevalchan_copy_values(r_blended_necs, lower_necs); + return true; +} + +/** Based on blendmode, blend lower necs with upper necs into blended necs. + * + * Each upper value's blend domain determines whether to blend or to copy directly + * from lower. + */ +static void nlaevalchan_blend_value(NlaEvalChannelSnapshot *lower_necs, + NlaEvalChannelSnapshot *upper_necs, + const int upper_blendmode, + const float upper_influence, + NlaEvalChannelSnapshot *r_blended_necs) +{ + nlaevalchan_assert_blendOrcombine_compatible(lower_necs, upper_necs, r_blended_necs); + if (nlaevalchan_blendOrcombine_try_copy_lower( + lower_necs, upper_necs, upper_influence, r_blended_necs)) { + return; + } + + const int length = lower_necs->length; + for (int j = 0; j < length; j++) { + if (!BLI_BITMAP_TEST_BOOL(upper_necs->blend_domain.ptr, j)) { + r_blended_necs->values[j] = lower_necs->values[j]; + continue; + } + + r_blended_necs->values[j] = nla_blend_value( + upper_blendmode, lower_necs->values[j], upper_necs->values[j], upper_influence); + } +} + +/** Based on mixmode, provided by one the necs, combines lower necs with upper necs into blended + * necs. + * + * Each upper value's blend domain determines whether to blend or to copy directly + * from lower. + */ +static void nlaevalchan_combine_value(NlaEvalChannelSnapshot *lower_necs, + NlaEvalChannelSnapshot *upper_necs, + const float upper_influence, + NlaEvalChannelSnapshot *r_blended_necs) +{ + nlaevalchan_assert_blendOrcombine_compatible(lower_necs, upper_necs, r_blended_necs); + if (nlaevalchan_blendOrcombine_try_copy_lower( + lower_necs, upper_necs, upper_influence, r_blended_necs)) { + return; + } + + /* Assumes every base is the same. */ + float *base_values = lower_necs->channel->base_snapshot.values; + const int length = lower_necs->length; + const char mix_mode = lower_necs->channel->mix_mode; + + for (int j = 0; j < length; j++) { + if (!BLI_BITMAP_TEST_BOOL(upper_necs->blend_domain.ptr, j)) { + r_blended_necs->values[j] = lower_necs->values[j]; + continue; + } + + r_blended_necs->values[j] = nla_combine_value( + mix_mode, base_values[j], lower_necs->values[j], upper_necs->values[j], upper_influence); + } +} + +/** Quaternion combines lower necs with upper necs into blended necs. + * + * Each upper value's blend domain determines whether to blend or to copy directly + * from lower. + */ +static void nlaevalchan_combine_quaternion(NlaEvalChannelSnapshot *lower_necs, + NlaEvalChannelSnapshot *upper_necs, + const float upper_influence, + NlaEvalChannelSnapshot *r_blended_necs) +{ + nlaevalchan_assert_blendOrcombine_compatible_quaternion(lower_necs, upper_necs, r_blended_necs); + if (nlaevalchan_blendOrcombine_try_copy_lower( + lower_necs, upper_necs, upper_influence, r_blended_necs)) { + return; + } + + /** No need to check per index. We limit to all or nothing combining for quaternions. */ + if (!BLI_BITMAP_TEST_BOOL(upper_necs->blend_domain.ptr, 0)) { + nlaevalchan_copy_values(r_blended_necs, lower_necs); + return; + } + + nla_combine_quaternion( + lower_necs->values, upper_necs->values, upper_influence, r_blended_necs->values); +} + +/** Based on blendmode and mixmode, blend lower necs with upper necs into blended necs. + * + * Each upper value's blend domain determines whether to blend or to copy directly + * from lower. + * + * \param lower_necs: Never NULL. + * \param upper_necs: Can be NULL. + * \param upper_blendmode: Enum value in eNlaStrip_Blend_Mode. + * \param upper_influence: Value in range [0, 1]. + * \param upper_necs: Never NULL. + * + */ +static void nlaevalchan_blendOrcombine(NlaEvalChannelSnapshot *lower_necs, + NlaEvalChannelSnapshot *upper_necs, + const int upper_blendmode, + const float upper_influence, + NlaEvalChannelSnapshot *r_blended_necs) +{ + nlaevalchan_assert_nonNull(r_blended_necs); + + switch (upper_blendmode) { + case NLASTRIP_MODE_COMBINE: { + switch (r_blended_necs->channel->mix_mode) { + case NEC_MIX_QUATERNION: { + nlaevalchan_combine_quaternion(lower_necs, upper_necs, upper_influence, r_blended_necs); + return; + } + case NEC_MIX_ADD: + case NEC_MIX_AXIS_ANGLE: + case NEC_MIX_MULTIPLY: { + nlaevalchan_combine_value(lower_necs, upper_necs, upper_influence, r_blended_necs); + return; + } + default: + BLI_assert("Mix mode should've been handled"); + } + return; + } + case NLASTRIP_MODE_ADD: + case NLASTRIP_MODE_SUBTRACT: + case NLASTRIP_MODE_MULTIPLY: + case NLASTRIP_MODE_REPLACE: { + nlaevalchan_blend_value( + lower_necs, upper_necs, upper_blendmode, upper_influence, r_blended_necs); + return; + } + default: + BLI_assert("Blend mode should've been handled"); + } +} + +/** Based on blendmode, solve for the upper values such that when lower blended with upper then we + * get blended values as a result. + * + * Only processes blended values in the remap domain. Successfully remapped upper values are placed + * in the remap domain so caller knows which values are usable. + */ +static void nlaevalchan_blend_value_get_inverted_upper_evalchan( + NlaEvalChannelSnapshot *lower_necs, + NlaEvalChannelSnapshot *blended_necs, + const int upper_blendmode, + const float upper_influence, + NlaEvalChannelSnapshot *r_upper_necs) +{ + nlaevalchan_assert_nonNull(r_upper_necs); + nlaevalchan_assert_blendOrcombine_compatible(lower_necs, r_upper_necs, blended_necs); + + const int length = lower_necs->length; + for (int j = 0; j < length; j++) { + if (!BLI_BITMAP_TEST_BOOL(blended_necs->remap_domain.ptr, j)) { + BLI_BITMAP_DISABLE(r_upper_necs->remap_domain.ptr, j); + continue; + } + + const bool success = nla_blend_get_inverted_strip_value(upper_blendmode, + lower_necs->values[j], + blended_necs->values[j], + upper_influence, + &r_upper_necs->values[j]); + BLI_BITMAP_SET(r_upper_necs->remap_domain.ptr, j, success); + } +} + +/** Based on mixmode, solve for the upper values such that when lower combined with upper then we + * get blended values as a result. + * + * Only processes blended values in the remap domain. Successfully remapped upper values are placed + * in the remap domain so caller knows which values are usable. + */ +static void nlaevalchan_combine_value_get_inverted_upper_evalchan( + NlaEvalChannelSnapshot *lower_necs, + NlaEvalChannelSnapshot *blended_necs, + const float upper_influence, + NlaEvalChannelSnapshot *r_upper_necs) +{ + nlaevalchan_assert_nonNull(r_upper_necs); + nlaevalchan_assert_blendOrcombine_compatible(lower_necs, r_upper_necs, blended_necs); + + /* Assumes every channel's base is the same. */ + float *base_values = lower_necs->channel->base_snapshot.values; + const int length = lower_necs->length; + const char mix_mode = lower_necs->channel->mix_mode; + + for (int j = 0; j < length; j++) { + if (!BLI_BITMAP_TEST_BOOL(blended_necs->remap_domain.ptr, j)) { + BLI_BITMAP_DISABLE(r_upper_necs->remap_domain.ptr, j); + continue; + } + + const bool success = nla_combine_get_inverted_strip_value(mix_mode, + base_values[j], + lower_necs->values[j], + blended_necs->values[j], + upper_influence, + &r_upper_necs->values[j]); + + BLI_BITMAP_SET(r_upper_necs->remap_domain.ptr, j, success); + } +} + +/** Solve for the upper values such that when lower quaternion combined with upper then we get + * blended values as a result. + * + * All blended values must be in the remap domain. If successfully remapped, then all upper values + * are placed in the remap domain so caller knows the result is usable. + */ +static void nlaevalchan_combine_quaternion_get_inverted_upper_evalchan( + NlaEvalChannelSnapshot *lower_necs, + NlaEvalChannelSnapshot *blended_necs, + const float upper_influence, + NlaEvalChannelSnapshot *r_upper_necs) +{ + nlaevalchan_assert_nonNull(r_upper_necs); + nlaevalchan_assert_blendOrcombine_compatible_quaternion(lower_necs, r_upper_necs, blended_necs); + + /* Must check each domain index individually in case animator had a non-combine NLA strip with a + * subset of quaternion channels and remapping through any of them failed and thus potentially + * has undefined values. */ + for (int j = 0; j < 4; j++) { + if (!BLI_BITMAP_TEST_BOOL(blended_necs->remap_domain.ptr, j)) { + BLI_bitmap_set_all(r_upper_necs->remap_domain.ptr, false, 4); + return; + } + } + + const bool success = nla_combine_quaternion_get_inverted_strip_values( + lower_necs->values, blended_necs->values, upper_influence, r_upper_necs->values); + + BLI_bitmap_set_all(r_upper_necs->remap_domain.ptr, success, 4); +} + +/** Based on blendmode and mix mode, solve for the upper values such that when lower blended or + * combined with upper then we get blended values as a result. + * + * Only processes blended values in the remap domain. Successfully remapped upper values are placed + * in the remap domain so caller knows which values are usable. + * + * \param lower_necs: Never NULL. + * \param blended_necs: Never NULL. + * \param upper_blendmode: Enum value in eNlaStrip_Blend_Mode. + * \param upper_influence: Value in range [0, 1]. + * \param r_upper_necs: Never NULL. + */ +static void nlaevalchan_blendOrcombine_get_inverted_upper_evalchan( + NlaEvalChannelSnapshot *lower_necs, + NlaEvalChannelSnapshot *blended_necs, + const int upper_blendmode, + const float upper_influence, + NlaEvalChannelSnapshot *r_upper_necs) +{ + nlaevalchan_assert_nonNull(r_upper_necs); + + if (IS_EQF(upper_influence, 0.0f)) { + BLI_bitmap_set_all(r_upper_necs->remap_domain.ptr, false, r_upper_necs->length); + return; + } + + switch (upper_blendmode) { + case NLASTRIP_MODE_COMBINE: { + switch (r_upper_necs->channel->mix_mode) { + case NEC_MIX_QUATERNION: { + nlaevalchan_combine_quaternion_get_inverted_upper_evalchan( + lower_necs, blended_necs, upper_influence, r_upper_necs); + return; + } + case NEC_MIX_ADD: + case NEC_MIX_AXIS_ANGLE: + case NEC_MIX_MULTIPLY: { + nlaevalchan_combine_value_get_inverted_upper_evalchan( + lower_necs, blended_necs, upper_influence, r_upper_necs); + return; + } + default: + BLI_assert("Mix mode should've been handled"); + } + return; + } + case NLASTRIP_MODE_ADD: + case NLASTRIP_MODE_SUBTRACT: + case NLASTRIP_MODE_MULTIPLY: + case NLASTRIP_MODE_REPLACE: { + nlaevalchan_blend_value_get_inverted_upper_evalchan( + lower_necs, blended_necs, upper_blendmode, upper_influence, r_upper_necs); + return; + } + default: + BLI_assert("Blend mode should've been handled"); + } +} + +/* ---------------------- */ /* F-Modifier stack joining/separation utilities - * should we generalize these for BLI_listbase.h interface? */ @@ -2513,11 +2864,7 @@ void nlasnapshot_blend(NlaEvalData *eval_data, { nlaeval_snapshot_ensure_size(r_blended_snapshot, eval_data->num_channels); - const bool zero_upper_influence = IS_EQF(upper_influence, 0.0f); - LISTBASE_FOREACH (NlaEvalChannel *, nec, &eval_data->channels) { - const int length = nec->base_snapshot.length; - NlaEvalChannelSnapshot *upper_necs = nlaeval_snapshot_get(upper_snapshot, nec->index); NlaEvalChannelSnapshot *lower_necs = nlaeval_snapshot_get(lower_snapshot, nec->index); if (upper_necs == NULL && lower_necs == NULL) { @@ -2530,49 +2877,43 @@ void nlasnapshot_blend(NlaEvalData *eval_data, } NlaEvalChannelSnapshot *result_necs = nlaeval_snapshot_ensure_channel(r_blended_snapshot, nec); + nlaevalchan_blendOrcombine( + lower_necs, upper_necs, upper_blendmode, upper_influence, result_necs); + } +} - /** Always copy \a lower_snapshot to result, irrelevant of whether \a upper_snapshot has a - * corresponding channel. This only matters when \a lower_snapshot not the same as - * \a r_blended_snapshot. */ - memcpy(result_necs->values, lower_necs->values, length * sizeof(float)); - if (upper_necs == NULL || zero_upper_influence) { +/** Using \a blended_snapshot and \a lower_snapshot, we can solve for the \a r_upper_snapshot. + * + * Only channels that exist within \a blended_snapshot are inverted. + * + * For \a r_upper_snapshot, disables \a NlaEvalChannelSnapshot->remap_domain for failed inversions. + * Only values within the \a remap_domain are processed. + */ +void nlasnapshot_blend_get_inverted_upper_snapshot(NlaEvalData *eval_data, + NlaEvalSnapshot *lower_snapshot, + NlaEvalSnapshot *blended_snapshot, + const short upper_blendmode, + const float upper_influence, + NlaEvalSnapshot *r_upper_snapshot) +{ + nlaeval_snapshot_ensure_size(r_upper_snapshot, eval_data->num_channels); + + LISTBASE_FOREACH (NlaEvalChannel *, nec, &eval_data->channels) { + NlaEvalChannelSnapshot *blended_necs = nlaeval_snapshot_get(blended_snapshot, nec->index); + if (blended_necs == NULL) { + /** We assume the caller only wants a subset of channels to be inverted, those that exist + * within \a blended_snapshot. */ continue; } - if (upper_blendmode == NLASTRIP_MODE_COMBINE) { - const int mix_mode = nec->mix_mode; - if (mix_mode == NEC_MIX_QUATERNION) { - if (!BLI_BITMAP_TEST_BOOL(upper_necs->blend_domain.ptr, 0)) { - continue; - } - - nla_combine_quaternion( - lower_necs->values, upper_necs->values, upper_influence, result_necs->values); - } - else { - for (int j = 0; j < length; j++) { - if (!BLI_BITMAP_TEST_BOOL(upper_necs->blend_domain.ptr, j)) { - continue; - } - - result_necs->values[j] = nla_combine_value(mix_mode, - nec->base_snapshot.values[j], - lower_necs->values[j], - upper_necs->values[j], - upper_influence); - } - } + NlaEvalChannelSnapshot *lower_necs = nlaeval_snapshot_get(lower_snapshot, nec->index); + if (lower_necs == NULL) { + lower_necs = nlaeval_snapshot_find_channel(lower_snapshot->base, nec); } - else { - for (int j = 0; j < length; j++) { - if (!BLI_BITMAP_TEST_BOOL(upper_necs->blend_domain.ptr, j)) { - continue; - } - result_necs->values[j] = nla_blend_value( - upper_blendmode, lower_necs->values[j], upper_necs->values[j], upper_influence); - } - } + NlaEvalChannelSnapshot *result_necs = nlaeval_snapshot_ensure_channel(r_upper_snapshot, nec); + nlaevalchan_blendOrcombine_get_inverted_upper_evalchan( + lower_necs, blended_necs, upper_blendmode, upper_influence, result_necs); } } @@ -2670,74 +3011,64 @@ bool BKE_animsys_nla_remap_keyframe_values(struct NlaKeyframingContext *context, return false; } - /* Find the evaluation channel for the NLA stack below current strip. */ + /** Create \a blended_snapshot and fill with input \a values. */ + NlaEvalData *eval_data = &context->lower_eval_data; + NlaEvalSnapshot blended_snapshot; + nlaeval_snapshot_init(&blended_snapshot, eval_data, NULL); + NlaEvalChannelKey key = { .ptr = *prop_ptr, .prop = prop, }; - /** - * Remove lower NLA stack effects. - * - * Using the tweak strip's blended result and the lower snapshot value, we can solve for the - * tweak strip value it must evaluate to. - */ - NlaEvalData *const lower_eval_data = &context->lower_eval_data; - NlaEvalChannel *const lower_nec = nlaevalchan_verify_key(lower_eval_data, NULL, &key); - if ((lower_nec->base_snapshot.length != count)) { + NlaEvalChannel *nec = nlaevalchan_verify_key(eval_data, NULL, &key); + BLI_assert(nec); + if (nec->base_snapshot.length != count) { BLI_assert(!"invalid value count"); + nlaeval_snapshot_free_data(&blended_snapshot); return false; } - /* Invert the blending operation to compute the desired strip values. */ - NlaEvalChannelSnapshot *const lower_nec_snapshot = nlaeval_snapshot_find_channel( - &lower_eval_data->eval_snapshot, lower_nec); + NlaEvalChannelSnapshot *blended_necs = nlaeval_snapshot_ensure_channel(&blended_snapshot, nec); + memcpy(blended_necs->values, values, sizeof(float) * count); + BLI_bitmap_set_all(blended_necs->remap_domain.ptr, true, count); - float *lower_values = lower_nec_snapshot->values; + /** Remove lower NLA stack effects. */ + nlasnapshot_blend_get_inverted_upper_snapshot(eval_data, + &context->lower_eval_data.eval_snapshot, + &blended_snapshot, + blend_mode, + influence, + &blended_snapshot); - if (blend_mode == NLASTRIP_MODE_COMBINE) { - /* Quaternion combine handles all sub-channels as a unit. */ - if (lower_nec->mix_mode == NEC_MIX_QUATERNION) { - if (r_force_all == NULL) { - return false; - } + /** Write results into \a values. */ + bool successful_remap = true; + if (blended_necs->channel->mix_mode == NEC_MIX_QUATERNION && + blend_mode == NLASTRIP_MODE_COMBINE) { + if (r_force_all != NULL) { *r_force_all = true; - - if (!nla_combine_quaternion_get_inverted_strip_values( - lower_values, values, influence, values)) { - return false; - } + index = -1; } else { - float *base_values = lower_nec->base_snapshot.values; - - for (int i = 0; i < count; i++) { - if (ELEM(index, i, -1)) { - if (!nla_combine_get_inverted_strip_value(lower_nec->mix_mode, - base_values[i], - lower_values[i], - values[i], - influence, - &values[i])) { - return false; - } - } - } + successful_remap = false; } } - else { - for (int i = 0; i < count; i++) { - if (ELEM(index, i, -1)) { - if (!nla_blend_get_inverted_strip_value( - blend_mode, lower_values[i], values[i], influence, &values[i])) { - return false; - } - } + + for (int i = 0; i < count; i++) { + if (!ELEM(index, i, -1)) { + continue; + } + if (!BLI_BITMAP_TEST_BOOL(blended_necs->remap_domain.ptr, i)) { + successful_remap = false; } + + values[i] = blended_necs->values[i]; } - return true; + nlaeval_snapshot_free_data(&blended_snapshot); + + return successful_remap; } /** diff --git a/source/blender/blenkernel/nla_private.h b/source/blender/blenkernel/nla_private.h index 706bcac4f17..71b5a74ddf7 100644 --- a/source/blender/blenkernel/nla_private.h +++ b/source/blender/blenkernel/nla_private.h @@ -82,6 +82,10 @@ typedef struct NlaEvalChannelSnapshot { /** For an upper snapshot channel, marks values that should be blended. */ NlaValidMask blend_domain; + /** Only used for keyframe remapping. Any values not in the \a remap_domain will not be used + * for keyframe remapping. */ + NlaValidMask remap_domain; + int length; /* Number of values in the property. */ bool is_base; /* Base snapshot of the channel. */ @@ -196,6 +200,13 @@ void nlasnapshot_blend(NlaEvalData *eval_data, const float upper_influence, NlaEvalSnapshot *r_blended_snapshot); +void nlasnapshot_blend_get_inverted_upper_snapshot(NlaEvalData *eval_data, + NlaEvalSnapshot *lower_snapshot, + NlaEvalSnapshot *blended_snapshot, + const short upper_blendmode, + const float upper_influence, + NlaEvalSnapshot *r_upper_snapshot); + #ifdef __cplusplus } #endif |