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implement SimpleTriangleMesh structure, make gl buffers resizable (#241)
* initial implementation of SimpleTriangleMesh, clean up some buffers and rules * implement resizable render attribute buffers * clean up attribute buffer accessors to use templates internally * resizable buffers for simple triangle mesh * fix bad size check
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| // Copyright 2017-2023, Nicholas Sharp and the Polyscope contributors. https://polyscope.run | ||
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| #pragma once | ||
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| #include "polyscope/color_management.h" | ||
| #include "polyscope/persistent_value.h" | ||
| #include "polyscope/polyscope.h" | ||
| #include "polyscope/render/engine.h" | ||
| #include "polyscope/render/managed_buffer.h" | ||
| #include "polyscope/scaled_value.h" | ||
| #include "polyscope/structure.h" | ||
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| #include <vector> | ||
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| namespace polyscope { | ||
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| // Forward declare simple triangle mesh | ||
| class SimpleTriangleMesh; | ||
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| // Forward declare quantity types | ||
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| // template <> // Specialize the quantity type | ||
| // struct QuantityTypeHelper<SimpleTriangleMesh> { | ||
| // typedef SimpleTriangleMeshQuantity type; | ||
| // }; | ||
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| class SimpleTriangleMesh : public QuantityStructure<SimpleTriangleMesh> { | ||
| public: | ||
| // === Member functions === | ||
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| // Construct a new simple triangle mesh structure | ||
| SimpleTriangleMesh(std::string name, std::vector<glm::vec3> vertices, std::vector<glm::uvec3> faces); | ||
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| // === Overrides | ||
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| // Build the imgui display | ||
| virtual void buildCustomUI() override; | ||
| virtual void buildCustomOptionsUI() override; | ||
| virtual void buildPickUI(size_t localPickID) override; | ||
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| // Standard structure overrides | ||
| virtual void draw() override; | ||
| virtual void drawDelayed() override; | ||
| virtual void drawPick() override; | ||
| virtual void updateObjectSpaceBounds() override; | ||
| virtual std::string typeName() override; | ||
| virtual void refresh() override; | ||
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| // === Geometry members | ||
| render::ManagedBuffer<glm::vec3> vertices; | ||
| render::ManagedBuffer<glm::uvec3> faces; | ||
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| // === Quantities | ||
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| // === Mutate | ||
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| template <class V> | ||
| void updateVertices(const V& newPositions); | ||
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| template <class V, class F> | ||
| void update(const V& newVertices, const F& newFaces); | ||
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| // Misc data | ||
| static const std::string structureTypeName; | ||
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| // === Get/set visualization parameters | ||
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| // set the base color of the surface | ||
| SimpleTriangleMesh* setSurfaceColor(glm::vec3 newVal); | ||
| glm::vec3 getSurfaceColor(); | ||
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| // Material | ||
| SimpleTriangleMesh* setMaterial(std::string name); | ||
| std::string getMaterial(); | ||
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| // Backface color | ||
| SimpleTriangleMesh* setBackFaceColor(glm::vec3 val); | ||
| glm::vec3 getBackFaceColor(); | ||
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| // Backface policy | ||
| SimpleTriangleMesh* setBackFacePolicy(BackFacePolicy newPolicy); | ||
| BackFacePolicy getBackFacePolicy(); | ||
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| // Rendering helpers used by quantities | ||
| void setSimpleTriangleMeshUniforms(render::ShaderProgram& p, bool withSurfaceShade = true); | ||
| void setSimpleTriangleMeshProgramGeometryAttributes(render::ShaderProgram& p); | ||
| std::vector<std::string> addSimpleTriangleMeshRules(std::vector<std::string> initRules, bool withSurfaceShade = true); | ||
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| // === ~DANGER~ experimental/unsupported functions | ||
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| private: | ||
| // Storage for the managed buffers above. You should generally interact with this directly through them. | ||
| std::vector<glm::vec3> verticesData; | ||
| std::vector<glm::uvec3> facesData; | ||
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| // === Visualization parameters | ||
| PersistentValue<glm::vec3> surfaceColor; | ||
| PersistentValue<std::string> material; | ||
| PersistentValue<BackFacePolicy> backFacePolicy; | ||
| PersistentValue<glm::vec3> backFaceColor; | ||
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| // Drawing related things | ||
| // if nullptr, prepare() (resp. preparePick()) needs to be called | ||
| std::shared_ptr<render::ShaderProgram> program; | ||
| std::shared_ptr<render::ShaderProgram> pickProgram; | ||
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| // === Helpers | ||
| // Do setup work related to drawing, including allocating openGL data | ||
| void ensureRenderProgramPrepared(); | ||
| void ensurePickProgramPrepared(); | ||
| void setPickUniforms(render::ShaderProgram& p); | ||
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| // === Quantity adder implementations | ||
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| // == Picking related things | ||
| size_t pickStart; | ||
| glm::vec3 pickColor; | ||
| }; | ||
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| // Shorthand to add a simple triangle mesh to polyscope | ||
| template <class V, class F> | ||
| SimpleTriangleMesh* registerSimpleTriangleMesh(std::string name, const V& vertices, const F& faces); | ||
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| // Shorthand to get a simple triangle mesh from polyscope | ||
| inline SimpleTriangleMesh* getSimpleTriangleMesh(std::string name = ""); | ||
| inline bool hasSimpleTriangleMesh(std::string name = ""); | ||
| inline void removeSimpleTriangleMesh(std::string name = "", bool errorIfAbsent = false); | ||
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| } // namespace polyscope | ||
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| #include "polyscope/simple_triangle_mesh.ipp" |
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