GeometryRenderer.h

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// -                        Open3D: www.open3d.org                            -
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// The MIT License (MIT)
//
// Copyright (c) 2018 www.open3d.org
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#pragma once

#include "Open3D/Geometry/Geometry.h"
#include "Open3D/Visualization/Shader/ImageMaskShader.h"
#include "Open3D/Visualization/Shader/ImageShader.h"
#include "Open3D/Visualization/Shader/NormalShader.h"
#include "Open3D/Visualization/Shader/PhongShader.h"
#include "Open3D/Visualization/Shader/PickingShader.h"
#include "Open3D/Visualization/Shader/RGBDImageShader.h"
#include "Open3D/Visualization/Shader/Simple2DShader.h"
#include "Open3D/Visualization/Shader/SimpleBlackShader.h"
#include "Open3D/Visualization/Shader/SimpleShader.h"

namespace open3d {
namespace visualization {

namespace glsl {

class GeometryRenderer {
public:
    virtual ~GeometryRenderer() {}

public:
    virtual bool Render(const RenderOption &option,
                        const ViewControl &view) = 0;

    virtual bool AddGeometry(
            std::shared_ptr<const geometry::Geometry> geometry_ptr) = 0;

    virtual bool UpdateGeometry() = 0;

    bool HasGeometry() const { return bool(geometry_ptr_); }
    std::shared_ptr<const geometry::Geometry> GetGeometry() const {
        return geometry_ptr_;
    }

    bool IsVisible() const { return is_visible_; }
    void SetVisible(bool visible) { is_visible_ = visible; };

protected:
    std::shared_ptr<const geometry::Geometry> geometry_ptr_;
    bool is_visible_ = true;
};

class PointCloudRenderer : public GeometryRenderer {
public:
    ~PointCloudRenderer() override {}

public:
    bool Render(const RenderOption &option, const ViewControl &view) override;
    bool AddGeometry(
            std::shared_ptr<const geometry::Geometry> geometry_ptr) override;
    bool UpdateGeometry() override;

protected:
    SimpleShaderForPointCloud simple_point_shader_;
    PhongShaderForPointCloud phong_point_shader_;
    NormalShaderForPointCloud normal_point_shader_;
    SimpleBlackShaderForPointCloudNormal simpleblack_normal_shader_;
};

class PointCloudPickingRenderer : public GeometryRenderer {
public:
    ~PointCloudPickingRenderer() override {}

public:
    bool Render(const RenderOption &option, const ViewControl &view) override;
    bool AddGeometry(
            std::shared_ptr<const geometry::Geometry> geometry_ptr) override;
    bool UpdateGeometry() override;

protected:
    PickingShaderForPointCloud picking_shader_;
};

class LineSetRenderer : public GeometryRenderer {
public:
    ~LineSetRenderer() override {}

public:
    bool Render(const RenderOption &option, const ViewControl &view) override;
    bool AddGeometry(
            std::shared_ptr<const geometry::Geometry> geometry_ptr) override;
    bool UpdateGeometry() override;

protected:
    SimpleShaderForLineSet simple_lineset_shader_;
};

class TetraMeshRenderer : public GeometryRenderer {
public:
    ~TetraMeshRenderer() override {}

public:
    bool Render(const RenderOption &option, const ViewControl &view) override;
    bool AddGeometry(
            std::shared_ptr<const geometry::Geometry> geometry_ptr) override;
    bool UpdateGeometry() override;

protected:
    SimpleShaderForTetraMesh simple_tetramesh_shader_;
};

class OrientedBoundingBoxRenderer : public GeometryRenderer {
public:
    ~OrientedBoundingBoxRenderer() override {}

public:
    bool Render(const RenderOption &option, const ViewControl &view) override;
    bool AddGeometry(
            std::shared_ptr<const geometry::Geometry> geometry_ptr) override;
    bool UpdateGeometry() override;

protected:
    SimpleShaderForOrientedBoundingBox simple_oriented_bounding_box_shader_;
};

class AxisAlignedBoundingBoxRenderer : public GeometryRenderer {
public:
    ~AxisAlignedBoundingBoxRenderer() override {}

public:
    bool Render(const RenderOption &option, const ViewControl &view) override;
    bool AddGeometry(
            std::shared_ptr<const geometry::Geometry> geometry_ptr) override;
    bool UpdateGeometry() override;

protected:
    SimpleShaderForAxisAlignedBoundingBox
            simple_axis_aligned_bounding_box_shader_;
};

class TriangleMeshRenderer : public GeometryRenderer {
public:
    ~TriangleMeshRenderer() override {}

public:
    bool Render(const RenderOption &option, const ViewControl &view) override;
    bool AddGeometry(
            std::shared_ptr<const geometry::Geometry> geometry_ptr) override;
    bool UpdateGeometry() override;

protected:
    SimpleShaderForTriangleMesh simple_mesh_shader_;
    PhongShaderForTriangleMesh phong_mesh_shader_;
    NormalShaderForTriangleMesh normal_mesh_shader_;
    SimpleBlackShaderForTriangleMeshWireFrame simpleblack_wireframe_shader_;
};

class VoxelGridRenderer : public GeometryRenderer {
public:
    ~VoxelGridRenderer() override {}

public:
    bool Render(const RenderOption &option, const ViewControl &view) override;
    bool AddGeometry(
            std::shared_ptr<const geometry::Geometry> geometry_ptr) override;
    bool UpdateGeometry() override;

protected:
    SimpleShaderForVoxelGridLine simple_shader_for_voxel_grid_line_;
    SimpleShaderForVoxelGridFace simple_shader_for_voxel_grid_face_;
};

class OctreeRenderer : public GeometryRenderer {
public:
    ~OctreeRenderer() override {}

public:
    bool Render(const RenderOption &option, const ViewControl &view) override;
    bool AddGeometry(
            std::shared_ptr<const geometry::Geometry> geometry_ptr) override;
    bool UpdateGeometry() override;

protected:
    SimpleShaderForOctreeLine simple_shader_for_octree_line_;
    SimpleShaderForOctreeFace simple_shader_for_octree_face_;
};

class ImageRenderer : public GeometryRenderer {
public:
    ~ImageRenderer() override {}

public:
    bool Render(const RenderOption &option, const ViewControl &view) override;
    bool AddGeometry(
            std::shared_ptr<const geometry::Geometry> geometry_ptr) override;
    bool UpdateGeometry() override;

protected:
    ImageShaderForImage image_shader_;
};

class RGBDImageRenderer : public GeometryRenderer {
public:
    ~RGBDImageRenderer() override {}

public:
    bool Render(const RenderOption &option, const ViewControl &view) override;
    bool AddGeometry(
            std::shared_ptr<const geometry::Geometry> geometry_ptr) override;
    bool UpdateGeometry() override;

protected:
    RGBDImageShaderForImage rgbd_image_shader_;
};

class CoordinateFrameRenderer : public GeometryRenderer {
public:
    ~CoordinateFrameRenderer() override {}

public:
    bool Render(const RenderOption &option, const ViewControl &view) override;
    bool AddGeometry(
            std::shared_ptr<const geometry::Geometry> geometry_ptr) override;
    bool UpdateGeometry() override;

protected:
    PhongShaderForTriangleMesh phong_shader_;
};

class SelectionPolygonRenderer : public GeometryRenderer {
public:
    ~SelectionPolygonRenderer() override {}

public:
    bool Render(const RenderOption &option, const ViewControl &view) override;
    bool AddGeometry(
            std::shared_ptr<const geometry::Geometry> geometry_ptr) override;
    bool UpdateGeometry() override;

protected:
    Simple2DShaderForSelectionPolygon simple2d_shader_;
    ImageMaskShaderForImage image_mask_shader_;
};

class PointCloudPickerRenderer : public GeometryRenderer {
public:
    ~PointCloudPickerRenderer() override {}

public:
    bool Render(const RenderOption &option, const ViewControl &view) override;
    bool AddGeometry(
            std::shared_ptr<const geometry::Geometry> geometry_ptr) override;
    bool UpdateGeometry() override;

protected:
    PhongShaderForTriangleMesh phong_shader_;
};

}  // namespace glsl

}  // namespace visualization
}  // namespace open3d