volmetrics: src/volume.h annotate

volmetrics

added shaders that just draw

author	Eleni Maria Stea <elene.mst@gmail.com>
date	Thu, 24 Apr 2014 20:47:48 +0300
parents	1272e3335608
children	e548d95e0667

rev	line source
eleni@0	1 #ifndef VOLUME_H_
eleni@0	2 #define VOLUME_H_
eleni@0	3
elene@3	4 #include <vector>
elene@3	5 #include "image.h"
elene@3	6
elene@9	7 class Mesh;
elene@9	8
eleni@1	9 class Volume {
eleni@1	10 private:
elene@3	11 std::vector<Image> slices;
elene@6	12
elene@4	13 int width;
elene@4	14 int height;
elene@5	15 float zaspect;
eleni@1	16
elene@6	17 unsigned int vol_tex;
elene@6	18 mutable bool vol_tex_valid;
elene@6	19
elene@6	20 void create_vol_tex() const;
elene@6	21
elene@3	22 public:
elene@3	23 Volume();
elene@6	24 ~Volume();
elene@3	25
elene@6	26 bool load(const char *fname);
elene@6	27
elene@4	28 bool push_slice(Image &&slice);
elene@6	29 const Image *get_slice(int num_slice) const;
elene@9	30
elene@9	31 // z must be in [0, 1]
elene@6	32 const Image *get_slice_by_z(float z) const;
elene@9	33
elene@6	34 int get_slice_count() const;
elene@6	35
elene@9	36 // z must be in [0, 1]
elene@6	37 int get_slice_idx_by_z(float z) const;
elene@6	38
elene@6	39 unsigned int get_texture() const;
elene@3	40
elene@12	41 void create_mesh(Mesh *mesh, float tmin, float tmax, int xres, int yres, int zres);
elene@9	42
elene@8	43 void draw() const;
eleni@1	44 };
eleni@1	45
elene@16	46 float transfer_function(float x, float low_thres, float high_thres);
elene@16	47
eleni@0	48 #endif // VOLUME_H_