145 lines
2.7 KiB
C
145 lines
2.7 KiB
C
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/*******************************************************
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Lightwave Object Loader for OSG
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Copyright (C) 2004 Marco Jez <marco.jez@poste.it>
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OpenSceneGraph is (C) 2004 Robert Osfield
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********************************************************/
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#ifndef LWOSG_BLOCK_
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#define LWOSG_BLOCK_
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#include "lwo2chunks.h"
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#include <osg/Vec3>
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#ifdef DIFFERENCE
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#undef DIFFERENCE
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#endif
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namespace lwosg
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{
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class Clip;
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struct Texture_mapping {
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enum Coordinate_system_type {
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OBJECT = 0,
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WORLD = 1
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};
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osg::Vec3 center_;
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osg::Vec3 size_;
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osg::Vec3 rotation_;
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// missing: OREF, FALL
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Coordinate_system_type csys_;
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Texture_mapping()
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: size_(1, 1, 1),
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csys_(OBJECT)
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{}
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};
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struct Image_map {
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enum Axis_type {
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X = 0,
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Y = 1,
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Z = 2
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};
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enum Projection_mode {
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PLANAR = 0,
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CYLINDRICAL = 1,
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SPHERICAL = 2,
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CUBIC = 3,
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FRONT_PROJECTION = 4,
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UV = 5
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};
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enum Wrap_type {
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RESET = 0,
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REPEAT = 1,
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MIRROR = 2,
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EDGE = 3
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};
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Texture_mapping mapping;
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Projection_mode projection;
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Axis_type axis;
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int image_map;
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const Clip *clip; // is filled by Surface::compile()
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Wrap_type width_wrap;
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Wrap_type height_wrap;
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float wrap_amount_w;
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float wrap_amount_h;
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std::string uv_map;
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// missing: AAST, PIXB, STCK
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float texture_amplitude;
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Image_map()
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: image_map(-1),
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clip(0),
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width_wrap(REPEAT),
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height_wrap(REPEAT),
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wrap_amount_w(1),
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wrap_amount_h(1),
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texture_amplitude(1)
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{}
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};
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class Block {
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public:
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enum Axis_type {
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X = 0,
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Y = 1,
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Z = 2
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};
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enum Opacity_type {
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NORMAL = 0,
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SUBTRACTIVE = 1,
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DIFFERENCE = 2,
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MULTIPLY = 3,
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DIVIDE = 4,
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ALPHA = 5,
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TEXTURE_DISPLACEMENT = 6,
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ADDITIVE = 7
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};
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Block(const lwo2::FORM::SURF::BLOK *blok = 0);
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void compile(const lwo2::FORM::SURF::BLOK *blok = 0);
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inline const std::string &get_type() const { return type_; }
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inline const std::string &get_ordinal() const { return ordinal_; }
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inline const std::string &get_channel() const { return channel_; }
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inline bool enabled() const { return enabled_; }
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inline Opacity_type get_opacity_type() const { return opacity_type_; }
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inline float get_opacity_amount() const { return opacity_amount_; }
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inline Axis_type get_displacement_axis() const { return displacement_axis_; }
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inline const Image_map &get_image_map() const { return imap_; }
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inline Image_map &get_image_map() { return imap_; }
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osg::Vec3 setup_texture_point(const osg::Vec3 &P) const;
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protected:
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void read_common_attributes(const iff::Chunk_list &subchunks);
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private:
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std::string type_;
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std::string ordinal_;
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std::string channel_;
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bool enabled_;
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Opacity_type opacity_type_;
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float opacity_amount_;
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Axis_type displacement_axis_;
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Image_map imap_;
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};
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}
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#endif
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