Differential D14365 Diff 59272 source/blender/blenkernel/intern/subdiv_eval.c

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source/blender/blenkernel/intern/subdiv_eval.c

Show First 20 Lines • Show All 120 Lines • ▼ Show 20 Lines	static void set_coarse_positions(Subdiv *subdiv,
MEM_freeN(buffer);		MEM_freeN(buffer);
}		}

/* Context which is used to fill face varying data in parallel. */		/* Context which is used to fill face varying data in parallel. */
typedef struct FaceVaryingDataFromUVContext {		typedef struct FaceVaryingDataFromUVContext {
OpenSubdiv_TopologyRefiner *topology_refiner;		OpenSubdiv_TopologyRefiner *topology_refiner;
const Mesh *mesh;		const Mesh *mesh;
const MPoly *polys;		const MPoly *polys;
const MLoopUV *mloopuv;		const float (*mloopuv)[2];
float (*buffer)[2];		float (*buffer)[2];
int layer_index;		int layer_index;
} FaceVaryingDataFromUVContext;		} FaceVaryingDataFromUVContext;

static void set_face_varying_data_from_uv_task(void *__restrict userdata,		static void set_face_varying_data_from_uv_task(void *__restrict userdata,
const int face_index,		const int face_index,
const TaskParallelTLS *__restrict UNUSED(tls))		const TaskParallelTLS *__restrict UNUSED(tls))
{		{
FaceVaryingDataFromUVContext *ctx = userdata;		FaceVaryingDataFromUVContext *ctx = userdata;
OpenSubdiv_TopologyRefiner *topology_refiner = ctx->topology_refiner;		OpenSubdiv_TopologyRefiner *topology_refiner = ctx->topology_refiner;
const int layer_index = ctx->layer_index;		const int layer_index = ctx->layer_index;
const MPoly *mpoly = &ctx->polys[face_index];		const MPoly *mpoly = &ctx->polys[face_index];
const MLoopUV *mluv = &ctx->mloopuv[mpoly->loopstart];		const float(*mluv)[2] = &ctx->mloopuv[mpoly->loopstart];

/* TODO(sergey): OpenSubdiv's C-API converter can change winding of		/* TODO(sergey): OpenSubdiv's C-API converter can change winding of
* loops of a face, need to watch for that, to prevent wrong UVs assigned.		* loops of a face, need to watch for that, to prevent wrong UVs assigned.
*/		*/
const int num_face_vertices = topology_refiner->getNumFaceVertices(topology_refiner, face_index);		const int num_face_vertices = topology_refiner->getNumFaceVertices(topology_refiner, face_index);
const int *uv_indices = topology_refiner->getFaceFVarValueIndices(		const int *uv_indices = topology_refiner->getFaceFVarValueIndices(
topology_refiner, face_index, layer_index);		topology_refiner, face_index, layer_index);
for (int vertex_index = 0; vertex_index < num_face_vertices; vertex_index++, mluv++) {		for (int vertex_index = 0; vertex_index < num_face_vertices; vertex_index++, mluv++) {
copy_v2_v2(ctx->buffer[uv_indices[vertex_index]], mluv->uv);		copy_v2_v2(ctx->buffer[uv_indices[vertex_index]], *mluv);
}		}
}		}

static void set_face_varying_data_from_uv(Subdiv *subdiv,		static void set_face_varying_data_from_uv(Subdiv *subdiv,
const Mesh *mesh,		const Mesh *mesh,
const MLoopUV *mloopuv,		const float (*mloopuv)[2],
const int layer_index)		const int layer_index)
{		{
OpenSubdiv_TopologyRefiner *topology_refiner = subdiv->topology_refiner;		OpenSubdiv_TopologyRefiner *topology_refiner = subdiv->topology_refiner;
OpenSubdiv_Evaluator *evaluator = subdiv->evaluator;		OpenSubdiv_Evaluator *evaluator = subdiv->evaluator;
const int num_faces = topology_refiner->getNumFaces(topology_refiner);		const int num_faces = topology_refiner->getNumFaces(topology_refiner);
const MLoopUV *mluv = mloopuv;		const float(*mluv)[2] = mloopuv;

const int num_fvar_values = topology_refiner->getNumFVarValues(topology_refiner, layer_index);		const int num_fvar_values = topology_refiner->getNumFVarValues(topology_refiner, layer_index);
/* Use a temporary buffer so we do not upload UVs one at a time to the GPU. */		/* Use a temporary buffer so we do not upload UVs one at a time to the GPU. */
float(buffer)[2] = MEM_mallocN(sizeof(float[2]) num_fvar_values, "temp UV storage");		float(buffer)[2] = MEM_mallocN(sizeof(float[2]) num_fvar_values, "temp UV storage");

FaceVaryingDataFromUVContext ctx;		FaceVaryingDataFromUVContext ctx;
ctx.topology_refiner = topology_refiner;		ctx.topology_refiner = topology_refiner;
ctx.layer_index = layer_index;		ctx.layer_index = layer_index;
▲ Show 20 Lines • Show All 72 Lines • ▼ Show 20 Lines	bool BKE_subdiv_eval_refine_from_mesh(Subdiv *subdiv,
if (subdiv->evaluator == NULL) {		if (subdiv->evaluator == NULL) {
/* NOTE: This situation is supposed to be handled by begin(). */		/* NOTE: This situation is supposed to be handled by begin(). */
BLI_assert_msg(0, "Is not supposed to happen");		BLI_assert_msg(0, "Is not supposed to happen");
return false;		return false;
}		}
/* Set coordinates of base mesh vertices. */		/* Set coordinates of base mesh vertices. */
set_coarse_positions(subdiv, mesh, coarse_vertex_cos);		set_coarse_positions(subdiv, mesh, coarse_vertex_cos);
/* Set face-varying data to UV maps. */		/* Set face-varying data to UV maps. */
const int num_uv_layers = CustomData_number_of_layers(&mesh->ldata, CD_MLOOPUV);		const int num_uv_layers = CustomData_number_of_layers(&mesh->ldata, CD_PROP_FLOAT2);
for (int layer_index = 0; layer_index < num_uv_layers; layer_index++) {		for (int layer_index = 0; layer_index < num_uv_layers; layer_index++) {
const MLoopUV *mloopuv = CustomData_get_layer_n(&mesh->ldata, CD_MLOOPUV, layer_index);		const float(*mloopuv)[2] = CustomData_get_layer_n(&mesh->ldata, CD_PROP_FLOAT2, layer_index);
set_face_varying_data_from_uv(subdiv, mesh, mloopuv, layer_index);		set_face_varying_data_from_uv(subdiv, mesh, mloopuv, layer_index);
}		}
/* Set vertex data to orco. */		/* Set vertex data to orco. */
set_vertex_data_from_orco(subdiv, mesh);		set_vertex_data_from_orco(subdiv, mesh);
/* Update evaluator to the new coarse geometry. */		/* Update evaluator to the new coarse geometry. */
BKE_subdiv_stats_begin(&subdiv->stats, SUBDIV_STATS_EVALUATOR_REFINE);		BKE_subdiv_stats_begin(&subdiv->stats, SUBDIV_STATS_EVALUATOR_REFINE);
subdiv->evaluator->refine(subdiv->evaluator);		subdiv->evaluator->refine(subdiv->evaluator);
BKE_subdiv_stats_end(&subdiv->stats, SUBDIV_STATS_EVALUATOR_REFINE);		BKE_subdiv_stats_end(&subdiv->stats, SUBDIV_STATS_EVALUATOR_REFINE);
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