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1 | #include <cstdlib> |
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2 | #include <cstring> |
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3 | |
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4 | #include <algorithm> |
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5 | |
| 1 | #include "opengl.h" |
6 | #include "opengl.h" |
| 2 | #include "material.h" |
7 | #include "material.h" |
| 3 | |
8 | #include "view.h" |
| 4 | #include <cstdlib> |
9 | #include "util.h" |
| 5 | #include <cstring> |
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| 6 | |
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| 7 | #include <algorithm> |
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| 8 | |
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| 9 | namespace shader { |
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| 10 | |
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| 11 | refcounted::~refcounted () |
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| 12 | { |
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| 13 | #if 0 |
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| 14 | if (refcnt) |
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| 15 | abort (); |
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| 16 | #endif |
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| 17 | } |
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| 18 | |
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| 19 | const char str_float [] = "float"; |
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| 20 | const char str_vec2 [] = "vec2"; |
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| 21 | const char str_vec3 [] = "vec3"; |
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| 22 | const char str_vec4 [] = "vec4"; |
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| 23 | const char str_mat2 [] = "mat2"; |
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| 24 | const char str_mat3 [] = "mat3"; |
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| 25 | const char str_mat4 [] = "mat4"; |
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| 26 | |
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| 27 | const char str_sampler_1d [] = "sampler1D"; |
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| 28 | const char str_sampler_1d_shadow [] = "sampler1DShadow"; |
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| 29 | const char str_sampler_2d [] = "sampler2D"; |
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| 30 | const char str_sampler_2d_shadow [] = "sampler2DShadow"; |
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| 31 | const char str_sampler_2d_rect [] = "sampler2DRect"; |
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| 32 | const char str_sampler_2d_rect_shadow [] = "sampler2DRectShadow"; |
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| 33 | const char str_sampler_3d [] = "sampler3D"; |
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| 34 | const char str_sampler_3d_rect [] = "sampler3DRect"; |
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| 35 | const char str_sampler_cube [] = "samplerCube"; |
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| 36 | |
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| 37 | static CGcontext cg_context = cgCreateContext (); |
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| 38 | |
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| 39 | int var_i::next_name = 0; |
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| 40 | |
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| 41 | var_i::var_i (CGtype cgtype, const char *typestr) |
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| 42 | : typestr (typestr) |
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| 43 | { |
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| 44 | name = ++next_name; |
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| 45 | param = cgCreateParameter (cg_context, cgtype); |
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| 46 | } |
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| 47 | |
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| 48 | var_i::~var_i () |
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| 49 | { |
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| 50 | cgDestroyParameter (param); |
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| 51 | } |
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| 52 | |
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| 53 | void var_i::build_decl (ostringstream &b) |
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| 54 | { |
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| 55 | b << typestr << ' ' << "V" << name; |
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| 56 | } |
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| 57 | |
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| 58 | void uniform_i::build_decl (ostringstream &b) |
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| 59 | { |
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| 60 | b << "uniform " << typestr << ' ' << "V" << name; |
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| 61 | } |
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| 62 | |
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| 63 | void stream_i::build_decl (ostringstream &b) |
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| 64 | { |
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| 65 | b << typestr << ' ' << binding; |
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| 66 | } |
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| 67 | |
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| 68 | void var_i::build (shader_builder &b) |
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| 69 | { |
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| 70 | b << "V" << name; |
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| 71 | } |
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| 72 | |
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| 73 | void uniform_i::build (shader_builder &b) |
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| 74 | { |
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| 75 | var_i::build (b); |
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| 76 | |
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| 77 | if (find (b.refs.begin (), b.refs.end (), uniform (*this)) == b.refs.end ()) |
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| 78 | b.refs.push_back (*this); |
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| 79 | } |
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| 80 | |
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| 81 | void stream_i::build (shader_builder &b) |
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| 82 | { |
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| 83 | b << binding; |
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| 84 | |
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| 85 | if (find (b.streams.begin (), b.streams.end (), var (*this)) == b.streams.end ()) |
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| 86 | b.streams.push_back (*this); |
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| 87 | } |
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| 88 | |
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| 89 | void temporary_i::build (shader_builder &b) |
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| 90 | { |
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| 91 | var_i::build (b); |
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| 92 | |
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| 93 | if (find (b.temps.begin (), b.temps.end (), var (*this)) == b.temps.end ()) |
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| 94 | b.temps.push_back (*this); |
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| 95 | } |
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| 96 | |
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| 97 | void fragment_const_string_i::build (shader_builder &b) |
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| 98 | { |
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| 99 | b << str; |
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| 100 | } |
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| 101 | |
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| 102 | struct vin vin; |
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| 103 | |
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| 104 | // MUST update is-function below |
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| 105 | varying_3f vin::position_3f ("gl_Vertex"); |
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| 106 | varying_4f vin::position_4f ("gl_Vertex"); |
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| 107 | varying_3f vin::normal_3f ("gl_Normal"); |
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| 108 | varying_3f vin::color_3f ("gl_Color"); |
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| 109 | varying_4f vin::color_4f ("gl_Color"); |
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| 110 | varying_3f vin::color2_3f ("gl_SecondaryColor"); |
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| 111 | varying_4f vin::color2_4f ("gl_SecondaryColor"); |
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| 112 | varying_1f vin::texcoord_1f[8] = |
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| 113 | { |
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| 114 | varying_1f ("gl_TexCoord[0]"), varying_1f ("gl_TexCoord[1]"), varying_1f ("gl_TexCoord[2]"), varying_1f ("gl_TexCoord[3]"), |
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| 115 | varying_1f ("gl_TexCoord[4]"), varying_1f ("gl_TexCoord[5]"), varying_1f ("gl_TexCoord[6]"), varying_1f ("gl_TexCoord[7]"), |
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| 116 | }; |
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| 117 | varying_2f vin::texcoord_2f[8] = |
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| 118 | { |
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| 119 | varying_2f ("gl_TexCoord[0]"), varying_2f ("gl_TexCoord[1]"), varying_2f ("gl_TexCoord[2]"), varying_2f ("gl_TexCoord[3]"), |
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| 120 | varying_2f ("gl_TexCoord[4]"), varying_2f ("gl_TexCoord[5]"), varying_2f ("gl_TexCoord[6]"), varying_2f ("gl_TexCoord[7]"), |
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| 121 | }; |
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| 122 | varying_3f vin::texcoord_3f[8] = |
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| 123 | { |
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| 124 | varying_3f ("gl_TexCoord[0]"), varying_3f ("gl_TexCoord[1]"), varying_3f ("gl_TexCoord[2]"), varying_3f ("gl_TexCoord[3]"), |
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| 125 | varying_3f ("gl_TexCoord[4]"), varying_3f ("gl_TexCoord[5]"), varying_3f ("gl_TexCoord[6]"), varying_3f ("gl_TexCoord[7]"), |
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| 126 | }; |
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| 127 | varying_4f vin::texcoord_4f[8] = |
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| 128 | { |
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| 129 | varying_4f ("gl_TexCoord[0]"), varying_4f ("gl_TexCoord[1]"), varying_4f ("gl_TexCoord[2]"), varying_4f ("gl_TexCoord[3]"), |
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| 130 | varying_4f ("gl_TexCoord[4]"), varying_4f ("gl_TexCoord[5]"), varying_4f ("gl_TexCoord[6]"), varying_4f ("gl_TexCoord[7]"), |
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| 131 | }; |
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| 132 | varying_1f vin::psize_1f ("PSIZE"); |
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| 133 | |
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| 134 | bool vin::is (const var &r) |
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| 135 | { |
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| 136 | return r == vin::position_3f |
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| 137 | || r == vin::position_4f |
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| 138 | || r == vin::normal_3f |
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| 139 | || r == vin::color_3f |
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| 140 | || r == vin::color_4f |
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| 141 | || r == vin::color2_3f |
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| 142 | || r == vin::color2_4f |
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| 143 | || r == vin::texcoord_1f[0] || r == vin::texcoord_1f[1] || r == vin::texcoord_1f[2] || r == vin::texcoord_1f[3] |
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| 144 | || r == vin::texcoord_1f[4] || r == vin::texcoord_1f[5] || r == vin::texcoord_1f[6] || r == vin::texcoord_1f[7] |
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| 145 | || r == vin::texcoord_2f[0] || r == vin::texcoord_2f[1] || r == vin::texcoord_2f[2] || r == vin::texcoord_2f[3] |
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| 146 | || r == vin::texcoord_2f[4] || r == vin::texcoord_2f[5] || r == vin::texcoord_2f[6] || r == vin::texcoord_2f[7] |
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| 147 | || r == vin::texcoord_3f[0] || r == vin::texcoord_3f[1] || r == vin::texcoord_3f[2] || r == vin::texcoord_3f[3] |
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| 148 | || r == vin::texcoord_3f[4] || r == vin::texcoord_3f[5] || r == vin::texcoord_3f[6] || r == vin::texcoord_3f[7] |
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| 149 | || r == vin::texcoord_4f[0] || r == vin::texcoord_4f[1] || r == vin::texcoord_4f[2] || r == vin::texcoord_4f[3] |
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| 150 | || r == vin::texcoord_4f[4] || r == vin::texcoord_4f[5] || r == vin::texcoord_4f[6] || r == vin::texcoord_4f[7]; |
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| 151 | } |
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| 152 | |
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| 153 | struct fin fin; |
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| 154 | struct fin &vout = fin; |
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| 155 | |
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| 156 | // MUST update is-function below |
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| 157 | varying_4f fin::position_4f ("gl_Position"); |
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| 158 | varying_4f fin::color_4f ("gl_Color"); |
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| 159 | varying_4f fin::color2_4f ("gl_SecondaryColor"); |
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| 160 | varying_4f fin::texcoord_4f[8] = |
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| 161 | { |
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| 162 | varying_4f ("gl_TexCoord[0]"), varying_4f ("gl_TexCoord[1]"), varying_4f ("gl_TexCoord[2]"), varying_4f ("gl_TexCoord[3]"), |
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| 163 | varying_4f ("gl_TexCoord[4]"), varying_4f ("gl_TexCoord[5]"), varying_4f ("gl_TexCoord[6]"), varying_4f ("gl_TexCoord[7]"), |
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| 164 | }; |
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| 165 | |
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| 166 | bool fin::is (const var &r) |
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| 167 | { |
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| 168 | return r == fin::position_4f |
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| 169 | || r == fin::color_4f |
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| 170 | || r == fin::color2_4f |
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| 171 | || r == fin::texcoord_4f[0] |
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| 172 | || r == fin::texcoord_4f[1] |
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| 173 | || r == fin::texcoord_4f[2] |
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| 174 | || r == fin::texcoord_4f[3] |
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| 175 | || r == fin::texcoord_4f[4] |
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| 176 | || r == fin::texcoord_4f[5] |
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| 177 | || r == fin::texcoord_4f[6] |
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| 178 | || r == fin::texcoord_4f[7]; |
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| 179 | } |
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| 180 | |
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| 181 | struct fout fout; |
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| 182 | |
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| 183 | // MUST update is-function below |
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| 184 | varying_4f fout::color_4f ("gl_FragColor"); |
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| 185 | varying_1f fout::depth_1f ("gl_FragDepth"); |
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| 186 | |
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| 187 | bool fout::is (const var &r) |
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| 188 | { |
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| 189 | return r == fout::color_4f |
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| 190 | || r == fout::depth_1f; |
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| 191 | } |
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| 192 | |
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| 193 | uniform_matrix_4f mvp, mv, proj; |
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| 194 | |
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| 195 | void fragment_vector_i::build (shader_builder &b) |
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| 196 | { |
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| 197 | for (vector<fragment>::iterator i = begin (); i != end (); i++) |
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| 198 | (*i)->build (b); |
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| 199 | } |
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| 200 | |
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| 201 | void shader_program::print () |
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| 202 | { |
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| 203 | shader_builder b; |
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| 204 | build (b); |
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| 205 | ostringstream os; |
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| 206 | |
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| 207 | for (vector<uniform>::iterator i = b.refs.begin (); i != b.refs.end (); i++) |
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| 208 | { |
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| 209 | (*i)->build_decl (os); |
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| 210 | os << ";\n"; |
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| 211 | } |
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| 212 | |
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| 213 | #if 0 |
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| 214 | // not neccessary right now, as GLSL is rich on predefinitions |
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| 215 | for (vector<var>::iterator i = b.streams.begin (); i != b.streams.end (); i++) |
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| 216 | { |
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| 217 | if (vout.is (*i) || fout.is (*i)) |
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| 218 | os << "varying "; |
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| 219 | else if (vin.is (*i)) |
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| 220 | os << "attribute "; |
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| 221 | |
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| 222 | (*i)->build_decl (os); |
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| 223 | os << ";\n"; |
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| 224 | } |
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| 225 | #endif |
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| 226 | |
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| 227 | os << "\nvoid main ()\n{\n"; |
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| 228 | |
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| 229 | for (vector<var>::iterator i = b.temps.begin (); i != b.temps.end (); i++) |
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| 230 | { |
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| 231 | (*i)->build_decl (os); |
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| 232 | os << ";\n"; |
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| 233 | } |
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| 234 | |
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| 235 | os << "\n"; |
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| 236 | os << b.source.str (); |
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| 237 | os << "\n}\n"; |
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| 238 | |
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| 239 | printf ("%s\n", os.str ().c_str ()); |
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| 240 | |
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| 241 | } |
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| 242 | |
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| 243 | void debdebdebdebug ()//D |
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| 244 | { |
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| 245 | vertex_program p; |
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| 246 | temp_4f t1, t2; |
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| 247 | sampler_2d s2d (1); |
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| 248 | |
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| 249 | p << t2 << " = tex2D (" << s2d << ", " << vin.position_4f << ".xy);\n"; |
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| 250 | p << t1 << " = mul (" << vin.position_4f << "," << mvp << ");\n"; |
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| 251 | p << vout.position_4f << " = " << t1 << ";\n"; |
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| 252 | |
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| 253 | p.print (); |
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| 254 | exit (0); |
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| 255 | } |
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| 256 | |
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| 257 | } |
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| 258 | |
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| 259 | material::~material () |
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| 260 | { |
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| 261 | } |
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| 262 | |
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| 263 | void |
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| 264 | simple_material::begin () |
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| 265 | { |
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| 266 | glMaterialfv (GL_FRONT, GL_DIFFUSE, (GLfloat *) & diffuse); |
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| 267 | glMaterialfv (GL_FRONT, GL_SPECULAR, (GLfloat *) & specular); |
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| 268 | glMaterialfv (GL_FRONT, GL_EMISSION, (GLfloat *) & emission); |
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| 269 | glMaterialf (GL_FRONT, GL_SHININESS, shininess); |
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| 270 | } |
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| 271 | |
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| 272 | void |
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| 273 | simple_material::end () |
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| 274 | { |
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| 275 | } |
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| 276 | |
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| 277 | void |
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| 278 | osama_material::begin () |
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| 279 | { |
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| 280 | cgGLEnableProfile (vsh_profile); |
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| 281 | cgGLEnableProfile (fsh_profile); |
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| 282 | cgGLEnableTextureParameter (g_Texture); |
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| 283 | } |
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| 284 | |
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| 285 | void |
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| 286 | osama_material::end () |
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| 287 | { |
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| 288 | cgGLDisableTextureParameter (g_Texture); |
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| 289 | // cgGLUnbindProgram (vsh_profile); |
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| 290 | // cgGLUnbindProgram (fsh_profile); |
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| 291 | cgGLDisableProfile (vsh_profile); |
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| 292 | cgGLDisableProfile (fsh_profile); |
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| 293 | } |
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| 294 | |
10 | |
| 295 | GLuint |
11 | GLuint |
| 296 | texture::load_texture (SDL_Surface * surface, GLfloat * tex2oord) |
12 | texture::load_texture (SDL_Surface * surface, GLfloat * tex2oord) |
| 297 | { |
13 | { |
| 298 | GLuint textur; |
14 | GLuint name; |
| 299 | int w, h; |
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| 300 | SDL_Surface *image; |
15 | SDL_Surface *image; |
| 301 | SDL_Rect area; |
16 | SDL_Rect area; |
| 302 | Uint32 saved_flags; |
17 | Uint32 saved_flags; |
| 303 | Uint8 saved_alpha; |
18 | Uint8 saved_alpha; |
| 304 | |
19 | |
| 305 | /* Use the surface width and height expanded to powers of 2 */ |
20 | /* Use the surface width and height expanded to powers of 2 */ |
| 306 | //w = power_of_two (surface->w); |
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| 307 | //h = power_of_two (surface->h); |
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| 308 | w = power_of_two (surface->w); |
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| 309 | h = power_of_two (surface->h); |
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| 310 | tex2oord[0] = 0.0f; /* Min X */ |
21 | tex2oord[0] = 0.F; /* Min X */ |
| 311 | tex2oord[1] = 0.0f; /* Min Y */ |
22 | tex2oord[1] = 0.F; /* Min Y */ |
| 312 | tex2oord[2] = (GLfloat) surface->w / w; /* Max X */ |
23 | tex2oord[2] = 1.F; /* Max X */ |
| 313 | tex2oord[3] = (GLfloat) surface->h / h; /* Max Y */ |
24 | tex2oord[3] = 1.F; /* Max Y */ |
| 314 | |
25 | |
| 315 | image = SDL_CreateRGBSurface (SDL_SWSURFACE, w, h, 32, |
26 | image = SDL_CreateRGBSurface (SDL_SWSURFACE, surface->w, surface->h, 32, |
| 316 | #if SDL_BYTEORDER == SDL_LIL_ENDIAN /* OpenGL RGBA masks */ |
27 | #if SDL_BYTEORDER == SDL_LIL_ENDIAN /* OpenGL RGBA masks */ |
| 317 | 0x000000FF, 0x0000FF00, 0x00FF0000, 0xFF000000 |
28 | 0x000000FF, 0x0000FF00, 0x00FF0000, 0xFF000000 |
| 318 | #else |
29 | #else |
| 319 | 0xFF000000, 0x00FF0000, 0x0000FF00, 0x000000FF |
30 | 0xFF000000, 0x00FF0000, 0x0000FF00, 0x000000FF |
| 320 | #endif |
31 | #endif |
| … | |
… | |
| 339 | /* Restore the alpha blending attributes */ |
50 | /* Restore the alpha blending attributes */ |
| 340 | if ((saved_flags & SDL_SRCALPHA) == SDL_SRCALPHA) |
51 | if ((saved_flags & SDL_SRCALPHA) == SDL_SRCALPHA) |
| 341 | SDL_SetAlpha (surface, saved_flags, saved_alpha); |
52 | SDL_SetAlpha (surface, saved_flags, saved_alpha); |
| 342 | |
53 | |
| 343 | /* Create an OpenGL texture for the image */ |
54 | /* Create an OpenGL texture for the image */ |
| 344 | glGenTextures (1, &textur); |
55 | glGenTextures (1, &name); |
| 345 | glBindTexture (GL_TEXTURE_2D, textur); |
56 | glBindTexture (GL_TEXTURE_2D, name); |
| 346 | glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); |
57 | glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); |
| 347 | 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); |
| 348 | glTexParameteri (GL_TEXTURE_2D, GL_GENERATE_MIPMAP_SGIS, GL_TRUE); // GENERATE_MIPMAP_SGIS |
59 | glTexParameteri (GL_TEXTURE_2D, GL_GENERATE_MIPMAP, GL_TRUE); |
| 349 | glTexImage2D (GL_TEXTURE_2D, |
60 | glTexImage2D (GL_TEXTURE_2D, 0, |
| 350 | 0, |
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| 351 | GL_RGBA, w, h, 0, GL_RGBA, GL_UNSIGNED_BYTE, image->pixels); |
61 | GL_RGBA, surface->w, surface->h, 0, GL_RGBA, GL_UNSIGNED_BYTE, image->pixels); |
| 352 | SDL_FreeSurface (image); /* No longer needed */ |
62 | SDL_FreeSurface (image); /* No longer needed */ |
| 353 | |
63 | |
| 354 | return textur; |
64 | return name; |
| 355 | } |
65 | } |
| 356 | |
66 | |
| 357 | CGcontext cgc; |
67 | material::~material () |
| 358 | |
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| 359 | void |
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| 360 | init_shaders () |
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| 361 | { |
68 | { |
| 362 | cgc = cgCreateContext (); |
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| 363 | } |
69 | } |
| 364 | |
70 | |
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71 | void material::enable (view &ctx) |
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72 | { |
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73 | pass_data::matmap_t &matmap = ctx.pass->matmap; |
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74 | |
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75 | pass_data::matmap_t::iterator i = matmap.find (this); |
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76 | |
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77 | if (i == matmap.end ()) |
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78 | { |
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79 | string vsh_src, fsh_src; |
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80 | |
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81 | shader::shader_builder::start (); |
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82 | |
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83 | if (ctx.pass->l) |
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84 | ctx.pass->l->vsh (); |
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85 | |
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86 | vsh (ctx); |
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87 | |
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88 | // compute logarithmic depth - see the frustum matrix in view.C |
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89 | { |
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90 | using namespace shader::compile; |
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91 | |
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92 | temp_1f lz; |
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93 | |
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94 | // TODO: negative z is not calculated in an acceptable way, clipping does horrible things(?) |
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95 | lz = z (vout.position); |
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96 | #if 0 |
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97 | lz = (log (max (lz, 0) + 1) / log (1e30)) - 1; |
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98 | #else |
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99 | lz = ifelse (lz <= 0, |
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100 | 0, |
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101 | log (lz + 1) / log (1e30) |
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102 | ) - 1; |
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103 | #endif |
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104 | z (vout.position) = lz * w (vout.position); |
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105 | } |
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106 | |
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107 | vsh_src = shader::shader_builder::stop (); |
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108 | |
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109 | shader::shader_builder::start (); |
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110 | |
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111 | if (ctx.pass->l) |
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112 | { |
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113 | ctx.pass->l->fsh (); |
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114 | fsh (ctx); |
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115 | } |
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116 | else |
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117 | // many drivers need both vertex and fragment shader, 'caboom!' otherwise |
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118 | shader::compile::fout.frag_color = shader::compile::float4 (0., 0., 0., 0.); |
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119 | |
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120 | fsh_src = shader::shader_builder::stop (); |
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121 | |
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122 | shader::program_object po = shader::get_program (vsh_src, fsh_src); |
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123 | matmap.insert (pass_data::matmap_t::value_type (this, po)); |
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124 | |
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125 | po->enable (); |
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126 | } |
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127 | else |
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128 | i->second->enable (); |
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129 | |
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130 | if (ctx.pass->l) |
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131 | ctx.pass->l->enable (ctx); |
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132 | } |
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133 | |
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134 | void material::disable (view &ctx) |
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135 | { |
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136 | } |
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137 | |
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138 | test_material::test_material () |
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139 | //: tex ("textures/osama.jpg"), texvar (tex.name) |
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140 | : tex ("textures/rockwall.jpg"), texvar (tex.name) |
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141 | , norm ("textures/rockwall_normal.jpg"), normvar (norm.name) |
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142 | { |
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143 | } |
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144 | |
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145 | |
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146 | void mat_timed::enable (view &ctx) |
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147 | { |
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148 | material::enable (ctx); |
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149 | |
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150 | time->set (timer::now); |
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151 | sh_colour->set (vec3 (255, 0, 0) * (1.F / 255.F)); |
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152 | } |
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153 | |
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154 | void mat_timed::disable (view &ctx) |
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155 | { |
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156 | material::disable (ctx); |
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157 | } |
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158 | |
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159 | void mat_timed::vsh (view &ctx) |
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160 | { |
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161 | using namespace shader::compile; |
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162 | std_vsh (); |
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163 | |
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164 | if (ctx.pass->l) |
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165 | f_normal = normal_matrix * vin.normal; |
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166 | } |
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167 | |
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168 | void mat_timed::fsh (view &ctx) |
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169 | { |
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170 | using namespace shader::compile; |
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171 | |
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172 | if (ctx.pass->l) |
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173 | { |
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174 | temp_1f fac; |
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175 | temp_3f normal; |
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176 | |
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177 | normal = f_normal + 0.3 * pow (sin (f_normal * 3.14159 + time), 3); |
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178 | |
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179 | fac = dot (normalize (normal), normalize (ctx.pass->l->sh_lightvec)); |
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180 | |
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181 | xyz (fout.frag_color) = fac * float3 (0.1,0.5,1);//ctx.pass->l->sh_colour * sh_colour * fac; |
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182 | } |
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183 | } |
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184 | |
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185 | void mat_gouraud_shaded::enable (view &ctx) |
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186 | { |
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187 | material::enable (ctx); |
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188 | |
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189 | sh_colour->set (vec3 (c.r, c.g, c.b) * (1.F / 255.F)); |
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190 | } |
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191 | |
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192 | void mat_gouraud_shaded::disable (view &ctx) |
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193 | { |
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194 | material::disable (ctx); |
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195 | } |
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196 | |
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197 | void mat_gouraud_shaded::vsh (view &ctx) |
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198 | { |
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199 | using namespace shader::compile; |
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200 | std_vsh (); |
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201 | |
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202 | if (ctx.pass->l) |
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203 | f_normal = normal_matrix * vin.normal; |
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204 | } |
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205 | |
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206 | void mat_gouraud_shaded::fsh (view &ctx) |
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207 | { |
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208 | using namespace shader::compile; |
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209 | |
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210 | if (ctx.pass->l) |
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211 | { |
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212 | temp_1f fac; |
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213 | |
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214 | fac = dot (normalize (f_normal), normalize (ctx.pass->l->sh_lightvec)); |
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215 | |
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216 | xyz (fout.frag_color) = ctx.pass->l->sh_colour * sh_colour * fac; |
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217 | } |
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218 | } |
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219 | |
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220 | static shader::varying_2f texcoord; |
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221 | static shader::varying_3f normal; |
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222 | |
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223 | void test_material::vsh (view &ctx) |
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224 | { |
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225 | using namespace shader::compile; |
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226 | |
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227 | std_vsh (); |
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228 | |
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229 | if (ctx.pass->l) |
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230 | { |
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231 | texcoord = xy (vin.tex_coord[0]); |
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232 | normal = normal_matrix * vin.normal; |
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233 | } |
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234 | } |
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235 | |
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236 | void test_material::fsh (view &ctx) |
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237 | { |
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238 | using namespace shader::compile; |
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239 | |
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240 | if (ctx.pass->l) |
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241 | { |
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242 | temp_3f lc; |
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243 | temp_1f fac; |
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244 | |
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245 | temp_3f rot1, rot2, rot3; |
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246 | |
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247 | yxz (rot1) = (texture_2d (normvar, texcoord) * 2.F - 1.F); |
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248 | |
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249 | //rot1 = normal_matrix * rot1; |
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250 | |
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251 | rot2 = float3 (x(rot1), z(rot1), -y(rot1)); |
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252 | rot3 = float3 (y(rot1), -x(rot1), z(rot1)); |
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253 | |
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254 | normal = mat3 (rot1, rot2, rot3) * normal; |
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255 | |
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256 | fac = dot (normalize (normal), normalize (ctx.pass->l->sh_lightvec)); |
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257 | fac = max (pow (max (fac, 0.0), 6), 0.3); |
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258 | xyz (fout.frag_color) = (texture_2d (texvar, texcoord) + 0.2F) * fac |
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259 | * ctx.pass->l->sh_colour; |
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260 | //xyz (fout.frag_color) = lc * fac; |
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261 | } |
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262 | } |
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263 | |
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264 | void test_material::enable (view &ctx) |
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265 | { |
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266 | material::enable (ctx); |
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267 | texvar->enable (); |
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268 | normvar->enable (); |
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269 | } |
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270 | |
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271 | void test_material::disable (view &ctx) |
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272 | { |
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273 | normvar->disable (); |
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274 | texvar->disable (); |
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275 | material::disable (ctx); |
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276 | } |
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277 | |
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278 | test_material *testmat; |
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279 | mat_gouraud_shaded *testmat2; |
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280 | mat_timed *testmat3; |
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281 | |
