Differential D14973 Diff 51578 source/blender/blenkernel/intern/subdiv_mesh.c

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source/blender/blenkernel/intern/subdiv_mesh.c

Show All 38 Lines	typedef struct SubdivMeshContext {
/* Cached custom data arrays for faster access. */		/* Cached custom data arrays for faster access. */
int *vert_origindex;		int *vert_origindex;
int *edge_origindex;		int *edge_origindex;
int *loop_origindex;		int *loop_origindex;
int *poly_origindex;		int *poly_origindex;
/* UV layers interpolation. */		/* UV layers interpolation. */
int num_uv_layers;		int num_uv_layers;
MLoopUV *uv_layers[MAX_MTFACE];		MLoopUV *uv_layers[MAX_MTFACE];
		/* Orco interpolation. */
		float (*orco)[3];
		float (*cloth_orco)[3];
/* Per-subdivided vertex counter of averaged values. */		/* Per-subdivided vertex counter of averaged values. */
int *accumulated_counters;		int *accumulated_counters;
bool have_displacement;		bool have_displacement;
} SubdivMeshContext;		} SubdivMeshContext;

static void subdiv_mesh_ctx_cache_uv_layers(SubdivMeshContext *ctx)		static void subdiv_mesh_ctx_cache_uv_layers(SubdivMeshContext *ctx)
{		{
Mesh *subdiv_mesh = ctx->subdiv_mesh;		Mesh *subdiv_mesh = ctx->subdiv_mesh;
Show All 9 Lines	static void subdiv_mesh_ctx_cache_custom_data_layers(SubdivMeshContext *ctx)
Mesh *subdiv_mesh = ctx->subdiv_mesh;		Mesh *subdiv_mesh = ctx->subdiv_mesh;
/* Pointers to original indices layers. */		/* Pointers to original indices layers. */
ctx->vert_origindex = CustomData_get_layer(&subdiv_mesh->vdata, CD_ORIGINDEX);		ctx->vert_origindex = CustomData_get_layer(&subdiv_mesh->vdata, CD_ORIGINDEX);
ctx->edge_origindex = CustomData_get_layer(&subdiv_mesh->edata, CD_ORIGINDEX);		ctx->edge_origindex = CustomData_get_layer(&subdiv_mesh->edata, CD_ORIGINDEX);
ctx->loop_origindex = CustomData_get_layer(&subdiv_mesh->ldata, CD_ORIGINDEX);		ctx->loop_origindex = CustomData_get_layer(&subdiv_mesh->ldata, CD_ORIGINDEX);
ctx->poly_origindex = CustomData_get_layer(&subdiv_mesh->pdata, CD_ORIGINDEX);		ctx->poly_origindex = CustomData_get_layer(&subdiv_mesh->pdata, CD_ORIGINDEX);
/* UV layers interpolation. */		/* UV layers interpolation. */
subdiv_mesh_ctx_cache_uv_layers(ctx);		subdiv_mesh_ctx_cache_uv_layers(ctx);
		/* Orco interpolation. */
		ctx->orco = CustomData_get_layer(&subdiv_mesh->vdata, CD_ORCO);
		ctx->cloth_orco = CustomData_get_layer(&subdiv_mesh->vdata, CD_CLOTH_ORCO);
}		}

static void subdiv_mesh_prepare_accumulator(SubdivMeshContext *ctx, int num_vertices)		static void subdiv_mesh_prepare_accumulator(SubdivMeshContext *ctx, int num_vertices)
{		{
if (!ctx->have_displacement) {		if (!ctx->have_displacement) {
return;		return;
}		}
ctx->accumulated_counters = MEM_calloc_arrayN(		ctx->accumulated_counters = MEM_calloc_arrayN(
▲ Show 20 Lines • Show All 332 Lines • ▼ Show 20 Lines	static void subdiv_mesh_tls_free(void *tls_v)
if (tls->loop_interpolation_initialized) {		if (tls->loop_interpolation_initialized) {
loop_interpolation_end(&tls->loop_interpolation);		loop_interpolation_end(&tls->loop_interpolation);
}		}
}		}

/** \} */		/** \} */

/* -------------------------------------------------------------------- */		/* -------------------------------------------------------------------- */
		/** \name Evaluation helper functions
		* \{ */

		static void subdiv_vertex_orco_evaluate(const SubdivMeshContext *ctx,
		const int ptex_face_index,
		const float u,
		const float v,
		const int subdiv_vertex_index)
		{
		if (ctx->orco \|\| ctx->cloth_orco) {
		float vertex_data[6];
		BKE_subdiv_eval_extra_vertex_data(ctx->subdiv, ptex_face_index, u, v, vertex_data);

		if (ctx->orco) {
		copy_v3_v3(ctx->orco[subdiv_vertex_index], vertex_data);
		if (ctx->cloth_orco) {
		copy_v3_v3(ctx->orco[subdiv_vertex_index], vertex_data + 3);
		}
		}
		else if (ctx->cloth_orco) {
		copy_v3_v3(ctx->orco[subdiv_vertex_index], vertex_data);
		}
		}
		}

		/** \} */

		/* -------------------------------------------------------------------- */
/** \name Accumulation helpers		/** \name Accumulation helpers
* \{ */		* \{ */

static void subdiv_accumulate_vertex_displacement(SubdivMeshContext *ctx,		static void subdiv_accumulate_vertex_displacement(SubdivMeshContext *ctx,
const int ptex_face_index,		const int ptex_face_index,
const float u,		const float u,
const float v,		const float v,
MVert *subdiv_vert)		MVert *subdiv_vert)
▲ Show 20 Lines • Show All 97 Lines • ▼ Show 20 Lines	if (ctx->have_displacement) {
copy_v3_v3(D, subdiv_vert->co);		copy_v3_v3(D, subdiv_vert->co);
mul_v3_fl(D, inv_num_accumulated);		mul_v3_fl(D, inv_num_accumulated);
}		}
/* Copy custom data and evaluate position. */		/* Copy custom data and evaluate position. */
subdiv_vertex_data_copy(ctx, coarse_vert, subdiv_vert);		subdiv_vertex_data_copy(ctx, coarse_vert, subdiv_vert);
BKE_subdiv_eval_limit_point(ctx->subdiv, ptex_face_index, u, v, subdiv_vert->co);		BKE_subdiv_eval_limit_point(ctx->subdiv, ptex_face_index, u, v, subdiv_vert->co);
/* Apply displacement. */		/* Apply displacement. */
add_v3_v3(subdiv_vert->co, D);		add_v3_v3(subdiv_vert->co, D);
		/* Evaluate undeformed texture coordinate. */
		subdiv_vertex_orco_evaluate(ctx, ptex_face_index, u, v, subdiv_vertex_index);
/* Remove facedot flag. This can happen if there is more than one subsurf modifier. */		/* Remove facedot flag. This can happen if there is more than one subsurf modifier. */
BLI_BITMAP_DISABLE(ctx->subdiv_mesh->runtime.subsurf_face_dot_tags, subdiv_vertex_index);		BLI_BITMAP_DISABLE(ctx->subdiv_mesh->runtime.subsurf_face_dot_tags, subdiv_vertex_index);
}		}

static void evaluate_vertex_and_apply_displacement_interpolate(		static void evaluate_vertex_and_apply_displacement_interpolate(
const SubdivMeshContext *ctx,		const SubdivMeshContext *ctx,
const int ptex_face_index,		const int ptex_face_index,
const float u,		const float u,
Show All 10 Lines	if (ctx->have_displacement) {
copy_v3_v3(D, subdiv_vert->co);		copy_v3_v3(D, subdiv_vert->co);
mul_v3_fl(D, inv_num_accumulated);		mul_v3_fl(D, inv_num_accumulated);
}		}
/* Interpolate custom data and evaluate position. */		/* Interpolate custom data and evaluate position. */
subdiv_vertex_data_interpolate(ctx, subdiv_vert, vertex_interpolation, u, v);		subdiv_vertex_data_interpolate(ctx, subdiv_vert, vertex_interpolation, u, v);
BKE_subdiv_eval_limit_point(ctx->subdiv, ptex_face_index, u, v, subdiv_vert->co);		BKE_subdiv_eval_limit_point(ctx->subdiv, ptex_face_index, u, v, subdiv_vert->co);
/* Apply displacement. */		/* Apply displacement. */
add_v3_v3(subdiv_vert->co, D);		add_v3_v3(subdiv_vert->co, D);
		/* Evaluate undeformed texture coordinate. */
		subdiv_vertex_orco_evaluate(ctx, ptex_face_index, u, v, subdiv_vertex_index);
}		}

static void subdiv_mesh_vertex_displacement_every_corner_or_edge(		static void subdiv_mesh_vertex_displacement_every_corner_or_edge(
const SubdivForeachContext *foreach_context,		const SubdivForeachContext *foreach_context,
void *UNUSED(tls),		void *UNUSED(tls),
const int ptex_face_index,		const int ptex_face_index,
const float u,		const float u,
const float v,		const float v,
▲ Show 20 Lines • Show All 151 Lines • ▼ Show 20 Lines	static void subdiv_mesh_vertex_inner(const SubdivForeachContext *foreach_context,
const MPoly *coarse_poly = &coarse_mpoly[coarse_poly_index];		const MPoly *coarse_poly = &coarse_mpoly[coarse_poly_index];
Mesh *subdiv_mesh = ctx->subdiv_mesh;		Mesh *subdiv_mesh = ctx->subdiv_mesh;
MVert *subdiv_mvert = subdiv_mesh->mvert;		MVert *subdiv_mvert = subdiv_mesh->mvert;
MVert *subdiv_vert = &subdiv_mvert[subdiv_vertex_index];		MVert *subdiv_vert = &subdiv_mvert[subdiv_vertex_index];
subdiv_mesh_ensure_vertex_interpolation(ctx, tls, coarse_poly, coarse_corner);		subdiv_mesh_ensure_vertex_interpolation(ctx, tls, coarse_poly, coarse_corner);
subdiv_vertex_data_interpolate(ctx, subdiv_vert, &tls->vertex_interpolation, u, v);		subdiv_vertex_data_interpolate(ctx, subdiv_vert, &tls->vertex_interpolation, u, v);
BKE_subdiv_eval_final_point(subdiv, ptex_face_index, u, v, subdiv_vert->co);		BKE_subdiv_eval_final_point(subdiv, ptex_face_index, u, v, subdiv_vert->co);
subdiv_mesh_tag_center_vertex(coarse_poly, subdiv_vertex_index, u, v, subdiv_mesh);		subdiv_mesh_tag_center_vertex(coarse_poly, subdiv_vertex_index, u, v, subdiv_mesh);
		subdiv_vertex_orco_evaluate(ctx, ptex_face_index, u, v, subdiv_vertex_index);
}		}

/** \} */		/** \} */

/* -------------------------------------------------------------------- */		/* -------------------------------------------------------------------- */
/** \name Edge subdivision process		/** \name Edge subdivision process
* \{ */		* \{ */

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