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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 | |
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11 | material::~material () |
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12 | { |
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13 | } |
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14 | |
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15 | void |
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16 | simple_material::enable (view &ctx) |
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17 | { |
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18 | glMaterialfv (GL_FRONT, GL_DIFFUSE, (GLfloat *) & diffuse); |
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19 | glMaterialfv (GL_FRONT, GL_SPECULAR, (GLfloat *) & specular); |
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20 | glMaterialfv (GL_FRONT, GL_EMISSION, (GLfloat *) & emission); |
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21 | glMaterialf (GL_FRONT, GL_SHININESS, shininess); |
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22 | } |
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23 | |
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24 | void |
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25 | simple_material::disable (view &ctx) |
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26 | { |
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27 | } |
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28 | |
10 | |
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; |
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81 | SDL_FreeSurface (image); /* No longer needed */ |
63 | SDL_FreeSurface (image); /* No longer needed */ |
82 | |
64 | |
83 | return name; |
65 | return name; |
84 | } |
66 | } |
85 | |
67 | |
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68 | material::~material () |
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69 | { |
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70 | } |
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71 | |
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72 | void material::enable (view &ctx) |
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73 | { |
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74 | pass::matmap_t &matmap = ctx.pass_data->matmap; |
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75 | |
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76 | pass::matmap_t::iterator i = matmap.find (this); |
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77 | |
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78 | if (i == matmap.end ()) |
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79 | { |
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80 | string vsh_src, fsh_src; |
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81 | |
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82 | shader::shader_builder::start (); |
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83 | vsh (ctx); |
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84 | |
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85 | if (ctx.pass_data->l) |
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86 | ctx.pass_data->l->vsh (); |
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87 | |
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88 | { |
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89 | using namespace shader::compile; |
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90 | |
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91 | z (vout.position) = log2 (z (vout.position) / w (vout.position)) * w (vout.position); |
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92 | } |
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93 | |
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94 | vsh_src = shader::shader_builder::stop (); |
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95 | |
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96 | if (ctx.pass_data->l || 1) |
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97 | { |
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98 | shader::shader_builder::start (); |
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99 | shader::compile::fout.frag_color = shader::compile::float4 (1., 1., 0., 1.); |
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100 | fsh (ctx); |
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101 | |
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102 | fsh_src = shader::shader_builder::stop (); |
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103 | } |
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104 | |
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105 | shader::program_object po = shader::get_program (vsh_src, fsh_src); |
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106 | matmap.insert (pass::matmap_t::value_type (this, po)); |
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107 | |
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108 | po->enable (); |
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109 | } |
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110 | else |
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111 | i->second->enable (); |
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112 | } |
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113 | |
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114 | void material::disable (view &ctx) |
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115 | { |
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116 | } |
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117 | |
86 | test_material::test_material () |
118 | test_material::test_material () |
87 | //: tex ("textures/osama.jpg"), texvar (tex.name) |
119 | //: tex ("textures/osama.jpg"), texvar (tex.name) |
88 | : tex ("textures/rockwall.jpg"), texvar (tex.name) |
120 | : tex ("textures/rockwall.jpg"), texvar (tex.name) |
89 | , norm ("textures/rockwall_height.jpg"), normvar (norm.name) |
121 | , norm ("textures/rockwall_normal.jpg"), normvar (norm.name) |
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122 | { |
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123 | } |
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124 | |
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125 | static shader::varying_3f normal, lightvec; |
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126 | static shader::varying_2f texcoord; |
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127 | |
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128 | void test_material::vsh (view &ctx) |
90 | { |
129 | { |
91 | using namespace shader::compile; |
130 | using namespace shader::compile; |
92 | |
131 | |
93 | p.vsh->start (); |
132 | std_vsh (); |
94 | |
133 | |
95 | temp_4f wpos; |
134 | if (ctx.pass_data->l) |
96 | |
135 | { |
97 | wpos = model_view_projection_matrix * vin.vertex; |
136 | texcoord = xy (vin.tex_coord[0]); |
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137 | normal = normal_matrix * vin.normal; |
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138 | lightvec = xyz (ctx.pass_data->l->lightpos - model_view_matrix * vin.vertex); |
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139 | } |
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140 | } |
98 | |
141 | |
99 | //wpos = wpos / abs (w (wpos)); |
142 | void test_material::fsh (view &ctx) |
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143 | { |
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144 | using namespace shader::compile; |
100 | |
145 | |
101 | vout.position = wpos; |
146 | if (ctx.pass_data->l) |
102 | vout.tex_coord[0] = vin.tex_coord[0]; |
147 | { |
103 | xyz (vout.tex_coord[1]) = normal_matrix * vin.normal; |
148 | temp_3f lc; |
104 | xyz (vout.tex_coord[2]) = xyz (lightpos - model_view_matrix * vin.vertex); |
149 | temp_1f fac; |
105 | w (vout.tex_coord[2]) = 1.; |
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106 | xw (vout.tex_coord[3]) = shader::compile::vec2 (length (xyz (vout.tex_coord[2])), 1.); |
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107 | |
150 | |
108 | p.vsh->end (); |
151 | lc = (*ctx.pass_data->l)(); |
109 | p.vsh->compile (); |
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110 | |
152 | |
111 | p.fsh->start (); |
153 | temp_3f rot1, rot2, rot3; |
112 | |
154 | |
113 | temp_1f fac; |
155 | yxz (rot1) = (texture_2d (normvar, texcoord) * 2.F - 1.F); |
114 | temp_2f disp; |
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115 | temp_1f dx, dy; |
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116 | temp_1f bumpnormal; |
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117 | temp_1f dist; |
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118 | |
156 | |
119 | dist = min (x(fin.tex_coord[3]), 100.); |
157 | //rot1 = normal_matrix * rot1; |
120 | |
158 | |
121 | fac = dot (normalize (xyz (fin.tex_coord[1])), xyz (normalize (fin.tex_coord[2]))); |
159 | rot2 = float3 (x(rot1), z(rot1), -y(rot1)); |
122 | //fac = dot (shader::compile::vec3 (normalize (fin.tex_coord[1]) + normalize (fin.tex_coord[2])) * 0.5, bumpnormal); |
160 | rot3 = float3 (y(rot1), -x(rot1), z(rot1)); |
123 | //fac = dot (bumpnormal, normalize (fin.tex_coord[2])); |
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124 | //fac = pow (max (fac, 0.0), 8); |
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125 | xyz (fout.frag_color) = (texture_2d (texvar, fin.tex_coord[0] - disp)) * max (fac, 1.2 * (1 - dist / 100.)); |
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126 | |
161 | |
127 | p.fsh->end (); |
162 | normal = mat3 (rot1, rot2, rot3) * normal; |
128 | p.fsh->compile (); |
163 | |
129 | p.link (); |
164 | fac = dot (normalize (normal), normalize (lightvec)); |
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165 | fac = max (pow (max (fac, 0.0), 6), 0.3); |
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166 | xyz (fout.frag_color) = (texture_2d (texvar, texcoord) + 0.2F) * lc * fac; |
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167 | //xyz (fout.frag_color) = lc * fac; |
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168 | } |
130 | } |
169 | } |
131 | |
170 | |
132 | void test_material::enable (view &ctx) |
171 | void test_material::enable (view &ctx) |
133 | { |
172 | { |
134 | p.enable (); |
173 | material::enable (ctx); |
135 | lightpos->set (vec3 (0, 0, 0)); |
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136 | texvar->enable (); |
174 | texvar->enable (); |
137 | normvar->enable (); |
175 | normvar->enable (); |
138 | } |
176 | } |
139 | |
177 | |
140 | void test_material::disable (view &ctx) |
178 | void test_material::disable (view &ctx) |
141 | { |
179 | { |
142 | normvar->disable (); |
180 | normvar->disable (); |
143 | texvar->disable (); |
181 | texvar->disable (); |
144 | p.disable (); |
182 | material::disable (ctx); |
145 | } |
183 | } |
146 | |
184 | |
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185 | test_material *testmat; |
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186 | |