| … | |
… | |
| 88 | |
88 | |
| 89 | // compute logarithmic depth - see the frustum matrix in view.C |
89 | // compute logarithmic depth - see the frustum matrix in view.C |
| 90 | { |
90 | { |
| 91 | using namespace shader::compile; |
91 | using namespace shader::compile; |
| 92 | |
92 | |
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93 | temp_1f lz; |
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94 | |
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95 | // TODO: negative z is not calculated in an acceptable way |
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96 | lz = z (vout.position); |
| 93 | z (vout.position) = (log2 (max (z (vout.position), 0)) * (2 / log2 (1e10)) - 1) * w (vout.position); |
97 | z (vout.position) = (log2 (lz) * (2 / log2 (1e10)) - 1) * w (vout.position); |
| 94 | } |
98 | } |
| 95 | |
99 | |
| 96 | vsh_src = shader::shader_builder::stop (); |
100 | vsh_src = shader::shader_builder::stop (); |
| 97 | |
101 | |
| 98 | shader::shader_builder::start (); |
102 | shader::shader_builder::start (); |
| … | |
… | |
| 103 | |
107 | |
| 104 | fsh (ctx); |
108 | fsh (ctx); |
| 105 | } |
109 | } |
| 106 | else |
110 | else |
| 107 | shader::compile::fout.frag_color = shader::compile::float4 (1., 0., 1., 1.); |
111 | shader::compile::fout.frag_color = shader::compile::float4 (1., 0., 1., 1.); |
| 108 | |
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| 109 | { |
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| 110 | using namespace shader::compile; |
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| 111 | //x (fout.frag_color) = Z;//D |
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| 112 | //y (fout.frag_color) = Z;//D |
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| 113 | //z (fout.frag_color) = Z;//D |
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| 114 | } |
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| 115 | |
112 | |
| 116 | fsh_src = shader::shader_builder::stop (); |
113 | fsh_src = shader::shader_builder::stop (); |
| 117 | |
114 | |
| 118 | shader::program_object po = shader::get_program (vsh_src, fsh_src); |
115 | shader::program_object po = shader::get_program (vsh_src, fsh_src); |
| 119 | matmap.insert (pass::matmap_t::value_type (this, po)); |
116 | matmap.insert (pass::matmap_t::value_type (this, po)); |
