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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_float2 [] = "float2"; |
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21 | const char str_float3 [] = "float3"; |
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22 | const char str_float4 [] = "float4"; |
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23 | const char str_float4x4 [] = "float4x4"; |
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24 | |
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25 | const char str_sampler1d [] = "sampler1d"; |
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26 | const char str_sampler2d [] = "sampler2d"; |
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27 | const char str_sampler3d [] = "sampler3d"; |
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28 | const char str_samplerCUBE [] = "samplerCUBE"; |
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29 | const char str_samplerRECT [] = "samplerRECT"; |
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30 | |
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31 | static CGcontext cg_context = cgCreateContext (); |
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32 | |
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33 | int var_i::next_name = 0; |
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34 | |
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35 | var_i::var_i (CGtype cgtype, const char *typestr) |
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36 | : typestr (typestr) |
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37 | { |
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38 | name = ++next_name; |
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39 | param = cgCreateParameter (cg_context, cgtype); |
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40 | } |
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41 | |
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42 | var_i::~var_i () |
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43 | { |
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44 | cgDestroyParameter (param); |
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45 | } |
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46 | |
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47 | void var_i::build_decl (ostringstream &b) |
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48 | { |
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49 | b << typestr << ' ' << "V" << name; |
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50 | } |
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51 | |
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52 | void uniform_i::build_decl (ostringstream &b) |
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53 | { |
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54 | b << "uniform " << typestr << ' ' << "V" << name; |
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55 | } |
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56 | |
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57 | void stream_i::build_decl (ostringstream &b) |
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58 | { |
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59 | b << typestr << ' ' << "V" << name; |
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60 | b << " : " << binding; |
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61 | } |
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62 | |
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63 | void var_i::build (shader_builder &b) |
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64 | { |
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65 | b << "V" << name; |
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66 | } |
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67 | |
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68 | void uniform_i::build (shader_builder &b) |
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69 | { |
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70 | var_i::build (b); |
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71 | |
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72 | if (find (b.refs.begin (), b.refs.end (), uniform (*this)) == b.refs.end ()) |
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73 | b.refs.push_back (*this); |
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74 | } |
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75 | |
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76 | void stream_i::build (shader_builder &b) |
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77 | { |
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78 | var_i::build (b); |
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79 | |
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80 | if (find (b.streams.begin (), b.streams.end (), var (*this)) == b.streams.end ()) |
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81 | b.streams.push_back (*this); |
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82 | } |
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83 | |
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84 | void temporary_i::build (shader_builder &b) |
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85 | { |
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86 | var_i::build (b); |
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87 | |
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88 | if (find (b.temps.begin (), b.temps.end (), var (*this)) == b.temps.end ()) |
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89 | b.temps.push_back (*this); |
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90 | } |
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91 | |
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92 | void fragment_const_string_i::build (shader_builder &b) |
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93 | { |
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94 | b << str; |
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95 | } |
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96 | |
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97 | struct vin vin; |
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98 | |
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99 | // MUST update is-function below |
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100 | varying_3f vin::position_3f ("POSITION"); |
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101 | varying_4f vin::position_4f ("POSITION"); |
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102 | varying_3f vin::normal_3f ("NORMAL"); |
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103 | varying_4f vin::normal_4f ("NORMAL"); |
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104 | varying_3f vin::color0_3f ("COLOR0"); |
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105 | varying_4f vin::color0_4f ("COLOR0"); |
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106 | varying_3f vin::color1_3f ("COLOR1"); |
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107 | varying_4f vin::color1_4f ("COLOR1"); |
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108 | varying_1f vin::texcoord_1f[8] = |
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109 | { |
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110 | varying_1f ("TEXCOORD0"), varying_1f ("TEXCOORD1"), varying_1f ("TEXCOORD2"), varying_1f ("TEXCOORD3"), |
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111 | varying_1f ("TEXCOORD4"), varying_1f ("TEXCOORD5"), varying_1f ("TEXCOORD6"), varying_1f ("TEXCOORD7"), |
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112 | }; |
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113 | varying_2f vin::texcoord_2f[8] = |
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114 | { |
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115 | varying_2f ("TEXCOORD0"), varying_2f ("TEXCOORD1"), varying_2f ("TEXCOORD2"), varying_2f ("TEXCOORD3"), |
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116 | varying_2f ("TEXCOORD4"), varying_2f ("TEXCOORD5"), varying_2f ("TEXCOORD6"), varying_2f ("TEXCOORD7"), |
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117 | }; |
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118 | varying_3f vin::texcoord_3f[8] = |
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119 | { |
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120 | varying_3f ("TEXCOORD0"), varying_3f ("TEXCOORD1"), varying_3f ("TEXCOORD2"), varying_3f ("TEXCOORD3"), |
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121 | varying_3f ("TEXCOORD4"), varying_3f ("TEXCOORD5"), varying_3f ("TEXCOORD6"), varying_3f ("TEXCOORD7"), |
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122 | }; |
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123 | varying_4f vin::texcoord_4f[8] = |
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124 | { |
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125 | varying_4f ("TEXCOORD0"), varying_4f ("TEXCOORD1"), varying_4f ("TEXCOORD2"), varying_4f ("TEXCOORD3"), |
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126 | varying_4f ("TEXCOORD4"), varying_4f ("TEXCOORD5"), varying_4f ("TEXCOORD6"), varying_4f ("TEXCOORD7"), |
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127 | }; |
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128 | varying_1f vin::psize_1f ("PSIZE"); |
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129 | varying_1f vin::attr6_1f ("ATTR6"); |
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130 | varying_1f vin::attr7_1f ("ATTR7"); |
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131 | varying_2f vin::attr6_2f ("ATTR6"); |
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132 | varying_2f vin::attr7_2f ("ATTR7"); |
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133 | varying_3f vin::attr6_3f ("ATTR6"); |
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134 | varying_3f vin::attr7_3f ("ATTR7"); |
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135 | varying_4f vin::attr6_4f ("ATTR6"); |
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136 | varying_4f vin::attr7_4f ("ATTR7"); |
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137 | |
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138 | bool vin::is (const var &r) |
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139 | { |
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140 | return r == vin::position_3f |
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141 | || r == vin::position_4f |
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142 | || r == vin::normal_3f |
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143 | || r == vin::normal_4f |
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144 | || r == vin::color0_3f |
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145 | || r == vin::color0_4f |
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146 | || r == vin::color1_3f |
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147 | || r == vin::color1_4f |
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148 | || r == vin::texcoord_1f[0] || r == vin::texcoord_1f[1] || r == vin::texcoord_1f[2] || r == vin::texcoord_1f[3] |
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149 | || r == vin::texcoord_1f[4] || r == vin::texcoord_1f[5] || r == vin::texcoord_1f[6] || r == vin::texcoord_1f[7] |
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150 | || r == vin::texcoord_2f[0] || r == vin::texcoord_2f[1] || r == vin::texcoord_2f[2] || r == vin::texcoord_2f[3] |
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151 | || r == vin::texcoord_2f[4] || r == vin::texcoord_2f[5] || r == vin::texcoord_2f[6] || r == vin::texcoord_2f[7] |
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152 | || r == vin::texcoord_3f[0] || r == vin::texcoord_3f[1] || r == vin::texcoord_3f[2] || r == vin::texcoord_3f[3] |
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153 | || r == vin::texcoord_3f[4] || r == vin::texcoord_3f[5] || r == vin::texcoord_3f[6] || r == vin::texcoord_3f[7] |
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154 | || r == vin::texcoord_4f[0] || r == vin::texcoord_4f[1] || r == vin::texcoord_4f[2] || r == vin::texcoord_4f[3] |
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155 | || r == vin::texcoord_4f[4] || r == vin::texcoord_4f[5] || r == vin::texcoord_4f[6] || r == vin::texcoord_4f[7] |
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156 | || r == vin::psize_1f |
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157 | || r == vin::attr6_1f |
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158 | || r == vin::attr7_1f |
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159 | || r == vin::attr6_2f |
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160 | || r == vin::attr7_2f |
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161 | || r == vin::attr6_3f |
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162 | || r == vin::attr7_3f |
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163 | || r == vin::attr6_4f |
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164 | || r == vin::attr7_4f; |
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165 | } |
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166 | |
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167 | struct fin fin; |
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168 | struct fin &vout = fin; |
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169 | |
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170 | // MUST update is-function below |
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171 | varying_4f fin::position_4f ("HPOS"); |
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172 | varying_4f fin::color0_4f ("COLOR0"); |
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173 | varying_4f fin::color1_4f ("COLOR1"); |
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174 | varying_4f fin::texcoord_4f[8] = |
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175 | { |
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176 | varying_4f ("TEXCOORD0"), varying_4f ("TEXCOORD1"), varying_4f ("TEXCOORD2"), varying_4f ("TEXCOORD3"), |
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177 | varying_4f ("TEXCOORD4"), varying_4f ("TEXCOORD5"), varying_4f ("TEXCOORD6"), varying_4f ("TEXCOORD7"), |
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178 | }; |
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179 | |
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180 | bool fin::is (const var &r) |
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181 | { |
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182 | return r == fin::position_4f |
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183 | || r == fin::color0_4f |
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184 | || r == fin::color1_4f |
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185 | || r == fin::texcoord_4f[0] |
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186 | || r == fin::texcoord_4f[1] |
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187 | || r == fin::texcoord_4f[2] |
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188 | || r == fin::texcoord_4f[3] |
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189 | || r == fin::texcoord_4f[4] |
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190 | || r == fin::texcoord_4f[5] |
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191 | || r == fin::texcoord_4f[6] |
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192 | || r == fin::texcoord_4f[7]; |
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193 | } |
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194 | |
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195 | struct fout fout; |
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196 | |
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197 | // MUST update is-function below |
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198 | varying_4f fout::color0_4f ("COLOR0"); |
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199 | varying_3f fout::color0_3f ("COLOR0"); |
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200 | varying_4f fout::color1_4f ("COLOR1"); |
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201 | varying_3f fout::color1_3f ("COLOR1"); |
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202 | varying_1f fout::depth_1f ("DEPTH"); |
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203 | |
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204 | bool fout::is (const var &r) |
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205 | { |
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206 | return r == fout::color0_4f |
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207 | || r == fout::color0_3f |
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208 | || r == fout::color1_4f |
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209 | || r == fout::color1_3f |
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210 | || r == fout::depth_1f; |
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211 | } |
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212 | |
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213 | uniform_matrix_f mvp, mv, proj; |
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214 | |
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215 | void fragment_vector_i::build (shader_builder &b) |
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216 | { |
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217 | for (vector<fragment>::iterator i = begin (); i != end (); i++) |
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218 | (*i)->build (b); |
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219 | } |
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220 | |
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221 | void shader_program::print () |
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222 | { |
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223 | shader_builder b; |
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224 | build (b); |
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225 | ostringstream os; |
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226 | |
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227 | os << "void main (\n"; |
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228 | for (vector<var>::iterator i = b.streams.begin (); i != b.streams.end (); i++) |
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229 | { |
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230 | os << " "; |
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231 | |
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232 | if (is_vertex) |
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233 | { |
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234 | if (vin.is (*i)) os << "in "; |
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235 | if (vout.is (*i)) os << "out "; |
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236 | } |
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237 | else |
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238 | { |
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239 | if (fin.is (*i)) os << "in "; |
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240 | if (fout.is (*i)) os << "out "; |
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241 | } |
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242 | |
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243 | (*i)->build_decl (os); |
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244 | os << ",\n"; |
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245 | } |
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246 | |
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247 | for (vector<uniform>::iterator i = b.refs.begin (); i != b.refs.end (); i++) |
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248 | { |
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249 | os << " "; |
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250 | (*i)->build_decl (os); |
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251 | os << ",\n"; |
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252 | } |
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253 | |
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254 | os << " uniform float unused_cg_broken_syntax\n"; |
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255 | os << ")\n{\n"; |
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256 | |
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257 | for (vector<var>::iterator i = b.temps.begin (); i != b.temps.end (); i++) |
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258 | { |
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259 | (*i)->build_decl (os); |
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260 | os << ";\n"; |
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261 | } |
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262 | |
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263 | os << "\n"; |
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264 | os << b.source.str (); |
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265 | os << "\n}\n"; |
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266 | |
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267 | printf ("%s\n", os.str ().c_str ()); |
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268 | |
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269 | } |
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270 | |
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271 | void debdebdebdebug ()//D |
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272 | { |
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273 | vertex_program p; |
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274 | temp_4f t1, t2; |
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275 | sampler2d s2d (1); |
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276 | |
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277 | p << t2 << " = tex2D (" << s2d << ", " << vin.position_4f << ".xy);\n"; |
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278 | p << t1 << " = mul (" << vin.position_4f << "," << mvp << ");\n"; |
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279 | p << vout.position_4f << " = " << t1 << ";\n"; |
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280 | |
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281 | p.print (); |
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282 | //exit (0); |
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283 | } |
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284 | |
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285 | } |
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286 | |
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287 | material::~material () |
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288 | { |
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289 | } |
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290 | |
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291 | void |
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292 | simple_material::begin () |
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293 | { |
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294 | glMaterialfv (GL_FRONT, GL_DIFFUSE, (GLfloat *) & diffuse); |
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295 | glMaterialfv (GL_FRONT, GL_SPECULAR, (GLfloat *) & specular); |
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296 | glMaterialfv (GL_FRONT, GL_EMISSION, (GLfloat *) & emission); |
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297 | glMaterialf (GL_FRONT, GL_SHININESS, shininess); |
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298 | } |
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299 | |
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300 | void |
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301 | simple_material::end () |
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302 | { |
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303 | } |
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304 | |
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305 | void |
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306 | osama_material::begin () |
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307 | { |
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308 | cgGLEnableProfile (vsh_profile); |
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309 | cgGLEnableProfile (fsh_profile); |
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310 | cgGLEnableTextureParameter (g_Texture); |
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311 | } |
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312 | |
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313 | void |
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314 | osama_material::end () |
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315 | { |
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316 | cgGLDisableTextureParameter (g_Texture); |
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317 | // cgGLUnbindProgram (vsh_profile); |
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318 | // cgGLUnbindProgram (fsh_profile); |
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319 | cgGLDisableProfile (vsh_profile); |
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320 | cgGLDisableProfile (fsh_profile); |
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321 | } |
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322 | |
10 | |
323 | GLuint |
11 | GLuint |
324 | texture::load_texture (SDL_Surface * surface, GLfloat * tex2oord) |
12 | texture::load_texture (SDL_Surface * surface, GLfloat * tex2oord, int flags) |
325 | { |
13 | { |
326 | GLuint textur; |
14 | GLuint name; |
327 | int w, h; |
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328 | SDL_Surface *image; |
15 | SDL_Surface *image; |
329 | SDL_Rect area; |
16 | SDL_Rect area; |
330 | Uint32 saved_flags; |
17 | Uint32 saved_flags; |
331 | Uint8 saved_alpha; |
18 | Uint8 saved_alpha; |
332 | |
19 | |
333 | /* Use the surface width and height expanded to powers of 2 */ |
20 | /* Use the surface width and height expanded to powers of 2 */ |
334 | //w = power_of_two (surface->w); |
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335 | //h = power_of_two (surface->h); |
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336 | w = power_of_two (surface->w); |
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337 | h = power_of_two (surface->h); |
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338 | tex2oord[0] = 0.0f; /* Min X */ |
21 | tex2oord[0] = 0.F; /* Min X */ |
339 | tex2oord[1] = 0.0f; /* Min Y */ |
22 | tex2oord[1] = 0.F; /* Min Y */ |
340 | tex2oord[2] = (GLfloat) surface->w / w; /* Max X */ |
23 | tex2oord[2] = 1.F; /* Max X */ |
341 | tex2oord[3] = (GLfloat) surface->h / h; /* Max Y */ |
24 | tex2oord[3] = 1.F; /* Max Y */ |
342 | |
25 | |
343 | image = SDL_CreateRGBSurface (SDL_SWSURFACE, w, h, 32, |
26 | image = SDL_CreateRGBSurface (SDL_SWSURFACE, surface->w, surface->h, 32, |
344 | #if SDL_BYTEORDER == SDL_LIL_ENDIAN /* OpenGL RGBA masks */ |
27 | #if SDL_BYTEORDER == SDL_LIL_ENDIAN /* OpenGL RGBA masks */ |
345 | 0x000000FF, 0x0000FF00, 0x00FF0000, 0xFF000000 |
28 | 0x000000FF, 0x0000FF00, 0x00FF0000, 0xFF000000 |
346 | #else |
29 | #else |
347 | 0xFF000000, 0x00FF0000, 0x0000FF00, 0x000000FF |
30 | 0xFF000000, 0x00FF0000, 0x0000FF00, 0x000000FF |
348 | #endif |
31 | #endif |
… | |
… | |
367 | /* Restore the alpha blending attributes */ |
50 | /* Restore the alpha blending attributes */ |
368 | if ((saved_flags & SDL_SRCALPHA) == SDL_SRCALPHA) |
51 | if ((saved_flags & SDL_SRCALPHA) == SDL_SRCALPHA) |
369 | SDL_SetAlpha (surface, saved_flags, saved_alpha); |
52 | SDL_SetAlpha (surface, saved_flags, saved_alpha); |
370 | |
53 | |
371 | /* Create an OpenGL texture for the image */ |
54 | /* Create an OpenGL texture for the image */ |
372 | glGenTextures (1, &textur); |
55 | glGenTextures (1, &name); |
373 | glBindTexture (GL_TEXTURE_2D, textur); |
56 | glBindTexture (GL_TEXTURE_2D, name); |
374 | glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); |
57 | glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); |
375 | glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR); |
58 | glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, flags & DISABLE_MIPMAP ? GL_LINEAR : GL_LINEAR_MIPMAP_LINEAR); |
376 | glTexParameteri (GL_TEXTURE_2D, GL_GENERATE_MIPMAP_SGIS, GL_TRUE); // GENERATE_MIPMAP_SGIS |
59 | glTexParameteri (GL_TEXTURE_2D, GL_GENERATE_MIPMAP, flags & DISABLE_MIPMAP ? GL_FALSE : GL_TRUE); |
377 | glTexImage2D (GL_TEXTURE_2D, |
60 | glTexImage2D (GL_TEXTURE_2D, 0, GL_RGBA, surface->w, surface->h, 0, GL_RGBA, GL_UNSIGNED_BYTE, image->pixels); |
378 | 0, |
61 | |
379 | GL_RGBA, w, h, 0, GL_RGBA, GL_UNSIGNED_BYTE, image->pixels); |
62 | if (flags & CLAMP) |
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63 | { |
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64 | glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); |
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65 | glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); |
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66 | glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_R, GL_CLAMP_TO_EDGE); |
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67 | } |
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68 | |
380 | SDL_FreeSurface (image); /* No longer needed */ |
69 | SDL_FreeSurface (image); /* No longer needed */ |
381 | |
70 | |
382 | return textur; |
71 | return name; |
383 | } |
72 | } |
384 | |
73 | |
385 | CGcontext cgc; |
74 | material::~material () |
386 | |
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387 | void |
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388 | init_shaders () |
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389 | { |
75 | { |
390 | cgc = cgCreateContext (); |
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391 | } |
76 | } |
392 | |
77 | |
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78 | void material::enable (view &ctx) |
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79 | { |
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80 | pass_data::matmap_t &matmap = ctx.pass->matmap; |
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81 | |
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82 | pass_data::matmap_t::iterator i = matmap.find (this); |
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83 | |
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84 | if (i == matmap.end ()) |
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85 | { |
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86 | string vsh_src, fsh_src; |
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87 | |
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88 | shader::shader_builder::start (); |
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89 | |
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90 | if (ctx.pass->l) |
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91 | ctx.pass->l->vsh (); |
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92 | |
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93 | vsh (ctx); |
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94 | |
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95 | // compute logarithmic depth - see the frustum matrix in view.C |
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96 | { |
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97 | using namespace shader::compile; |
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98 | |
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99 | temp_1f lz; |
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100 | |
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101 | // TODO: negative z is not calculated in an a very acceptable way |
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102 | lz = z (vout.position); |
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103 | lz = sign (lz) * (log (abs (lz) + exp (1e0)) - 1e0) / log (1e30); |
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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::vec4 (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 | skybox_material::skybox_material () |
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146 | : tex (0) |
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147 | { |
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148 | } |
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149 | |
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150 | void skybox_material::enable (view &ctx) |
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151 | { |
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152 | material::enable (ctx); |
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153 | } |
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154 | |
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155 | void skybox_material::disable (view &ctx) |
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156 | { |
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157 | material::disable (ctx); |
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158 | } |
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159 | |
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160 | static shader::varying_2f skybox_texcoord; |
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161 | |
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162 | void skybox_material::vsh (view &ctx) |
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163 | { |
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164 | using namespace shader::compile; |
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165 | |
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166 | std_vsh (); |
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167 | skybox_texcoord = xy (vin.tex_coord[0]); |
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168 | } |
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169 | |
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170 | void skybox_material::fsh (view &ctx) |
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171 | { |
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172 | using namespace shader::compile; |
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173 | |
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174 | xyz (fout.frag_color) = texture_2d (tex, skybox_texcoord); |
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175 | } |
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176 | |
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177 | void mat_timed::enable (view &ctx) |
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178 | { |
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179 | material::enable (ctx); |
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180 | |
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181 | time->set (timer::now); |
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182 | sh_colour->set (vec3 (255, 0, 0) * (1.F / 255.F)); |
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183 | } |
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184 | |
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185 | void mat_timed::disable (view &ctx) |
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186 | { |
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187 | material::disable (ctx); |
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188 | } |
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189 | |
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190 | void mat_timed::vsh (view &ctx) |
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191 | { |
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192 | using namespace shader::compile; |
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193 | std_vsh (); |
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194 | |
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195 | if (ctx.pass->l) |
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196 | f_normal = normal_matrix * vin.normal; |
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197 | } |
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198 | |
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199 | void mat_timed::fsh (view &ctx) |
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200 | { |
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201 | using namespace shader::compile; |
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202 | |
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203 | if (ctx.pass->l) |
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204 | { |
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205 | temp_1f fac; |
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206 | temp_3f normal; |
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207 | |
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208 | normal = f_normal + 0.3 * pow (sin (f_normal * 3.14159 + time), 3); |
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209 | |
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210 | fac = dot (normalize (normal), normalize (ctx.pass->l->sh_lightvec)); |
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211 | |
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212 | xyz (fout.frag_color) = fac * shader::compile::vec3 (0.1,0.5,1);//ctx.pass->l->sh_colour * sh_colour * fac; |
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213 | } |
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214 | } |
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215 | |
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216 | void mat_gouraud_shaded::enable (view &ctx) |
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217 | { |
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218 | material::enable (ctx); |
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219 | |
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220 | sh_colour->set (vec3 (c.r, c.g, c.b) * (1.F / 255.F)); |
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221 | } |
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222 | |
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223 | void mat_gouraud_shaded::disable (view &ctx) |
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224 | { |
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225 | material::disable (ctx); |
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226 | } |
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227 | |
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228 | void mat_gouraud_shaded::vsh (view &ctx) |
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229 | { |
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230 | using namespace shader::compile; |
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231 | std_vsh (); |
|
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232 | |
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233 | if (ctx.pass->l) |
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234 | f_normal = normal_matrix * vin.normal; |
|
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235 | } |
|
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236 | |
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237 | void mat_gouraud_shaded::fsh (view &ctx) |
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238 | { |
|
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239 | using namespace shader::compile; |
|
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240 | |
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241 | if (ctx.pass->l) |
|
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242 | { |
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243 | temp_1f fac; |
|
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244 | |
|
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245 | fac = dot (normalize (f_normal), normalize (ctx.pass->l->sh_lightvec)); |
|
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246 | |
|
|
247 | xyz (fout.frag_color) = ctx.pass->l->sh_colour * sh_colour * fac; |
|
|
248 | } |
|
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249 | } |
|
|
250 | |
|
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251 | static shader::varying_3f f_normal; |
|
|
252 | |
|
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253 | void mat_debug::enable (view &ctx) |
|
|
254 | { |
|
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255 | material::enable (ctx); |
|
|
256 | |
|
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257 | glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); |
|
|
258 | glEnable (GL_BLEND); |
|
|
259 | glDepthMask (1); |
|
|
260 | } |
|
|
261 | |
|
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262 | void mat_debug::disable (view &ctx) |
|
|
263 | { |
|
|
264 | material::disable (ctx); |
|
|
265 | |
|
|
266 | glDisable (GL_BLEND); |
|
|
267 | glDepthMask (0); |
|
|
268 | } |
|
|
269 | |
|
|
270 | void mat_debug::vsh (view &ctx) |
|
|
271 | { |
|
|
272 | using namespace shader::compile; |
|
|
273 | std_vsh (); |
|
|
274 | |
|
|
275 | if (ctx.pass->l) |
|
|
276 | f_normal = normal_matrix * vin.normal; |
|
|
277 | } |
|
|
278 | |
|
|
279 | void mat_debug::fsh (view &ctx) |
|
|
280 | { |
|
|
281 | using namespace shader::compile; |
|
|
282 | |
|
|
283 | if (ctx.pass->l) |
|
|
284 | { |
|
|
285 | temp_1f fac; |
|
|
286 | |
|
|
287 | fac = dot (normalize (f_normal), normalize (ctx.pass->l->sh_lightvec)); |
|
|
288 | |
|
|
289 | xyz (fout.frag_color) = shader::compile::vec3 (1.,0.,0.); |
|
|
290 | w (fout.frag_color) = 0.1; |
|
|
291 | } |
|
|
292 | } |
|
|
293 | |
|
|
294 | static shader::varying_2f texcoord; |
|
|
295 | static shader::varying_3f normal; |
|
|
296 | |
|
|
297 | void test_material::vsh (view &ctx) |
|
|
298 | { |
|
|
299 | using namespace shader::compile; |
|
|
300 | |
|
|
301 | std_vsh (); |
|
|
302 | |
|
|
303 | if (ctx.pass->l) |
|
|
304 | { |
|
|
305 | texcoord = xy (vin.tex_coord[0]); |
|
|
306 | normal = normal_matrix * vin.normal; |
|
|
307 | } |
|
|
308 | } |
|
|
309 | |
|
|
310 | void test_material::fsh (view &ctx) |
|
|
311 | { |
|
|
312 | using namespace shader::compile; |
|
|
313 | |
|
|
314 | if (ctx.pass->l) |
|
|
315 | { |
|
|
316 | temp_3f lc; |
|
|
317 | temp_1f fac; |
|
|
318 | |
|
|
319 | temp_3f rot1, rot2, rot3; |
|
|
320 | |
|
|
321 | yxz (rot1) = (texture_2d (normvar, texcoord) * 2.F - 1.F); |
|
|
322 | |
|
|
323 | //rot1 = normal_matrix * rot1; |
|
|
324 | |
|
|
325 | rot2 = shader::compile::vec3 (x(rot1), z(rot1), -y(rot1)); |
|
|
326 | rot3 = shader::compile::vec3 (y(rot1), -x(rot1), z(rot1)); |
|
|
327 | |
|
|
328 | normal = mat3 (rot1, rot2, rot3) * normal; |
|
|
329 | |
|
|
330 | fac = dot (normalize (normal), normalize (ctx.pass->l->sh_lightvec)); |
|
|
331 | fac = max (pow (max (fac, 0.0), 6), 0.3); |
|
|
332 | xyz (fout.frag_color) = (texture_2d (texvar, texcoord) + 0.2F) * fac |
|
|
333 | * ctx.pass->l->sh_colour; |
|
|
334 | //xyz (fout.frag_color) = lc * fac; |
|
|
335 | } |
|
|
336 | } |
|
|
337 | |
|
|
338 | void test_material::enable (view &ctx) |
|
|
339 | { |
|
|
340 | material::enable (ctx); |
|
|
341 | texvar->enable (); |
|
|
342 | normvar->enable (); |
|
|
343 | } |
|
|
344 | |
|
|
345 | void test_material::disable (view &ctx) |
|
|
346 | { |
|
|
347 | normvar->disable (); |
|
|
348 | texvar->disable (); |
|
|
349 | material::disable (ctx); |
|
|
350 | } |
|
|
351 | |
|
|
352 | test_material *testmat; |
|
|
353 | mat_gouraud_shaded *testmat2; |
|
|
354 | mat_timed *testmat3; |
|
|
355 | mat_debug *debugmat; |
|
|
356 | |