90ea1b7643
This patch adds an integer identifier to nodes that doesn't change when the node name changes. This identifier can be used by different systems to reference a node. This may be important to store caches and simulation states per node, because otherwise those would always be invalidated when a node name changes. Additionally, this kind of identifier could make some things more efficient, because with it an integer is enough to identify a node and one does not have to store the node name. I observed a 10% improvement in evaluation time in a file with an extreme number of simple math nodes, due to reduced logging overhead-- from 0.226s to 0.205s. Differential Revision: https://developer.blender.org/D15775
57 lines
1.3 KiB
C++
57 lines
1.3 KiB
C++
/* SPDX-License-Identifier: GPL-2.0-or-later */
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#pragma once
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/**
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* This file implements some specific compute contexts for concepts in Blender.
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*/
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#include "BLI_compute_context.hh"
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struct bNode;
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namespace blender::bke {
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class ModifierComputeContext : public ComputeContext {
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private:
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static constexpr const char *s_static_type = "MODIFIER";
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/**
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* Use modifier name instead of something like `session_uuid` for now because:
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* - It's more obvious that the name matches between the original and evaluated object.
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* - We might want that the context hash is consistent between sessions in the future.
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*/
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std::string modifier_name_;
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public:
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ModifierComputeContext(const ComputeContext *parent, std::string modifier_name);
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private:
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void print_current_in_line(std::ostream &stream) const override;
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};
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class NodeGroupComputeContext : public ComputeContext {
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private:
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static constexpr const char *s_static_type = "NODE_GROUP";
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int32_t node_id_;
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#ifdef DEBUG
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std::string debug_node_name_;
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#endif
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public:
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NodeGroupComputeContext(const ComputeContext *parent, int32_t node_id);
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NodeGroupComputeContext(const ComputeContext *parent, const bNode &node);
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int32_t node_id() const
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{
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return node_id_;
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}
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private:
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void print_current_in_line(std::ostream &stream) const override;
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};
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} // namespace blender::bke
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