[ViewVC] Diff of: cvs/cvsroot/libgender/material.C

Comparing cvsroot/libgender/material.C (file contents):
Revision 1.18 by root, Fri Oct 29 17:21:54 2004 UTC vs.
Revision 1.49 by root, Sun Nov 7 22:07:05 2004 UTC

…		…
6	#include "opengl.h"	6	#include "opengl.h"
7	#include "material.h"	7	#include "material.h"
8	#include "view.h"	8	#include "view.h"
9	#include "util.h"	9	#include "util.h"
10		10
11	material::~material ()
12	{
13	}
14
15	void
16	simple_material::enable (view &ctx)
17	{
18	glMaterialfv (GL_FRONT, GL_DIFFUSE, (GLfloat *) & diffuse);
19	glMaterialfv (GL_FRONT, GL_SPECULAR, (GLfloat *) & specular);
20	glMaterialfv (GL_FRONT, GL_EMISSION, (GLfloat *) & emission);
21	glMaterialf (GL_FRONT, GL_SHININESS, shininess);
22	}
23
24	void
25	simple_material::disable (view &ctx)
26	{
27	}
28
29	GLuint	11	GLuint
30	texture::load_texture (SDL_Surface * surface, GLfloat * tex2oord)	12	texture::load_texture (SDL_Surface * surface, GLfloat * tex2oord)
31	{	13	{
32	GLuint name;	14	GLuint name;
33	int w, h;
34	SDL_Surface *image;	15	SDL_Surface *image;
35	SDL_Rect area;	16	SDL_Rect area;
36	Uint32 saved_flags;	17	Uint32 saved_flags;
37	Uint8 saved_alpha;	18	Uint8 saved_alpha;
38		19
39	/* Use the surface width and height expanded to powers of 2 */	20	/* Use the surface width and height expanded to powers of 2 */
40	//w = power_of_two (surface->w);
41	//h = power_of_two (surface->h);
42	w = power_of_two (surface->w);
43	h = power_of_two (surface->h);
44	tex2oord[0] = 0.0f; /* Min X */	21	tex2oord[0] = 0.F; /* Min X */
45	tex2oord[1] = 0.0f; /* Min Y */	22	tex2oord[1] = 0.F; /* Min Y */
46	tex2oord[2] = (GLfloat) surface->w / w; /* Max X */	23	tex2oord[2] = 1.F; /* Max X */
47	tex2oord[3] = (GLfloat) surface->h / h; /* Max Y */	24	tex2oord[3] = 1.F; /* Max Y */
48		25
49	image = SDL_CreateRGBSurface (SDL_SWSURFACE, w, h, 32,	26	image = SDL_CreateRGBSurface (SDL_SWSURFACE, surface->w, surface->h, 32,
50	#if SDL_BYTEORDER == SDL_LIL_ENDIAN /* OpenGL RGBA masks */	27	#if SDL_BYTEORDER == SDL_LIL_ENDIAN /* OpenGL RGBA masks */
51	0x000000FF, 0x0000FF00, 0x00FF0000, 0xFF000000	28	0x000000FF, 0x0000FF00, 0x00FF0000, 0xFF000000
52	#else	29	#else
53	0xFF000000, 0x00FF0000, 0x0000FF00, 0x000000FF	30	0xFF000000, 0x00FF0000, 0x0000FF00, 0x000000FF
54	#endif	31	#endif
…		…
80	glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);	57	glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
81	glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);	58	glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
82	glTexParameteri (GL_TEXTURE_2D, GL_GENERATE_MIPMAP, GL_TRUE);	59	glTexParameteri (GL_TEXTURE_2D, GL_GENERATE_MIPMAP, GL_TRUE);
83	glTexImage2D (GL_TEXTURE_2D,	60	glTexImage2D (GL_TEXTURE_2D,
84	0,	61	0,
85	GL_RGBA, w, h, 0, GL_RGBA, GL_UNSIGNED_BYTE, image->pixels);	62	GL_RGBA, surface->w, surface->h, 0, GL_RGBA, GL_UNSIGNED_BYTE, image->pixels);
86	SDL_FreeSurface (image); /* No longer needed */	63	SDL_FreeSurface (image); /* No longer needed */
87		64
88	return name;	65	return name;
89	}	66	}
90		67
		68	material::~material ()
		69	{
		70	}
		71
		72	void material::enable (view &ctx)
		73	{
		74	pass_data::matmap_t &matmap = ctx.pass->matmap;
		75
		76	pass_data::matmap_t::iterator i = matmap.find (this);
		77
		78	if (i == matmap.end ())
		79	{
		80	string vsh_src, fsh_src;
		81
		82	shader::shader_builder::start ();
		83
		84	if (ctx.pass->l)
		85	ctx.pass->l->vsh ();
		86
		87	vsh (ctx);
		88
		89	// compute logarithmic depth - see the frustum matrix in view.C
		90	{
		91	using namespace shader::compile;
		92
		93	temp_1f lz;
		94
		95	// TODO: negative z is not calculated in an acceptable way
		96	lz = z (vout.position);
		97	z (vout.position) = (ifelse (lz < 0, lz, log (lz) * (2 / log (1e10))) - 1) * w (vout.position);
		98	}
		99
		100	vsh_src = shader::shader_builder::stop ();
		101
		102	shader::shader_builder::start ();
		103
		104	if (ctx.pass->l)
		105	{
		106	ctx.pass->l->fsh ();
		107
		108	fsh (ctx);
		109	}
		110	else
		111	shader::compile::fout.frag_color = shader::compile::float4 (1., 0., 1., 1.);
		112
		113	fsh_src = shader::shader_builder::stop ();
		114
		115	shader::program_object po = shader::get_program (vsh_src, fsh_src);
		116	matmap.insert (pass_data::matmap_t::value_type (this, po));
		117
		118	po->enable ();
		119	}
		120	else
		121	i->second->enable ();
		122
		123	if (ctx.pass->l)
		124	ctx.pass->l->enable ();
		125	}
		126
		127	void material::disable (view &ctx)
		128	{
		129	}
		130
91	test_material::test_material ()	131	test_material::test_material ()
92	: tex ("textures/osama.jpg"), texvar (tex.name)	132	//: tex ("textures/osama.jpg"), texvar (tex.name)
		133	: tex ("textures/rockwall.jpg"), texvar (tex.name)
		134	, norm ("textures/rockwall_normal.jpg"), normvar (norm.name)
93	{	135	{
94	using namespace shader;	136	}
95		137
96	p.vsh->start ();	138	static shader::varying_3f normal;
		139	static shader::varying_2f texcoord;
97		140
98	temp_4f wpos;	141	void test_material::vsh (view &ctx)
99		142	{
100	wpos = shader::gl.model_view_projection_matrix * vin.vertex;	143	using namespace shader::compile;
101		144
102	vout.position = wpos;	145	std_vsh ();
103	vout.tex_coord[0] = vin.tex_coord[0];
104	vout.tex_coord[1] = shader::gl.model_view_matrix * shader::vec4 (x (vin.normal), y(vin.normal), z(vin.normal), 0);
105		146
106	p.vsh->end ();	147	if (ctx.pass->l)
107	p.vsh->compile ();	148	{
		149	texcoord = xy (vin.tex_coord[0]);
		150	normal = normal_matrix * vin.normal;
		151	}
		152	}
108		153
109	p.fsh->start ();	154	void test_material::fsh (view &ctx)
		155	{
		156	using namespace shader::compile;
110		157
		158	if (ctx.pass->l)
		159	{
		160	temp_3f lc;
111	temp_1f fac;	161	temp_1f fac;
112
113	fac = max (dot (fin.tex_coord[1], lightpos), 0.0);
114	fac = pow (fac, 3);
115	xyz(fout.frag_color) = texture_2d (texvar, fin.tex_coord[0]) * (fac + 0.3);
116		162
117	p.fsh->end ();	163	temp_3f rot1, rot2, rot3;
118	p.fsh->compile ();	164
119	p.link ();	165	yxz (rot1) = (texture_2d (normvar, texcoord) * 2.F - 1.F);
		166
		167	//rot1 = normal_matrix * rot1;
		168
		169	rot2 = float3 (x(rot1), z(rot1), -y(rot1));
		170	rot3 = float3 (y(rot1), -x(rot1), z(rot1));
		171
		172	normal = mat3 (rot1, rot2, rot3) * normal;
		173
		174	fac = dot (normalize (normal), normalize (ctx.pass->l->sh_lightvec));
		175	fac = max (pow (max (fac, 0.0), 6), 0.3);
		176	xyz (fout.frag_color) = (texture_2d (texvar, texcoord) + 0.2F) * fac
		177	* ctx.pass->l->sh_colour;
		178	//xyz (fout.frag_color) = lc * fac;
		179	}
120	}	180	}
121		181
122	void test_material::enable (view &ctx)	182	void test_material::enable (view &ctx)
123	{	183	{
124	p.enable ();	184	material::enable (ctx);
125	lightpos->set (-ctx.d);
126	texvar->enable ();	185	texvar->enable ();
		186	normvar->enable ();
127	}	187	}
128		188
129	void test_material::disable (view &ctx)	189	void test_material::disable (view &ctx)
130	{	190	{
		191	normvar->disable ();
131	texvar->disable ();	192	texvar->disable ();
132	p.disable ();	193	material::disable (ctx);
133	}	194	}
134		195
		196	test_material *testmat;
		197

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Comparing cvsroot/libgender/material.C (file contents): Revision 1.18 by root, Fri Oct 29 17:21:54 2004 UTC vs. Revision 1.49 by root, Sun Nov 7 22:07:05 2004 UTC

Diff Legend

Comparing cvsroot/libgender/material.C (file contents):
Revision 1.18 by root, Fri Oct 29 17:21:54 2004 UTC vs.
Revision 1.49 by root, Sun Nov 7 22:07:05 2004 UTC