| … | |
… | |
| 90 | { |
90 | { |
| 91 | using namespace shader::compile; |
91 | using namespace shader::compile; |
| 92 | |
92 | |
| 93 | temp_1f lz; |
93 | temp_1f lz; |
| 94 | |
94 | |
| 95 | // TODO: negative z is not calculated in an acceptable way |
95 | // TODO: negative z is not calculated in an acceptable way, clipping does horrible things(?) |
| 96 | lz = z (vout.position); |
96 | lz = z (vout.position); |
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97 | lz = ifelse (lz <= 0, |
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98 | 0, |
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99 | log (lz + 1) / log (1e18) |
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100 | ) - 1; |
| 97 | z (vout.position) = (log2 (lz) * (2 / log2 (1e10)) - 1) * w (vout.position); |
101 | z (vout.position) = lz * w (vout.position); |
| 98 | #if 0 |
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| 99 | z (vout.position) = |
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| 100 | ifelse ( |
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| 101 | z < 0, |
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| 102 | -1, |
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| 103 | log2 (lz) * (2 / log2 (1e10)) - 1 |
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| 104 | ) * w (vout.position); |
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| 105 | #endif |
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| 106 | } |
102 | } |
| 107 | |
103 | |
| 108 | vsh_src = shader::shader_builder::stop (); |
104 | vsh_src = shader::shader_builder::stop (); |
| 109 | |
105 | |
| 110 | shader::shader_builder::start (); |
106 | shader::shader_builder::start (); |
| 111 | |
107 | |
| 112 | if (ctx.pass->l) |
108 | if (ctx.pass->l) |
| 113 | { |
109 | { |
| 114 | ctx.pass->l->fsh (); |
110 | ctx.pass->l->fsh (); |
| 115 | |
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| 116 | fsh (ctx); |
111 | fsh (ctx); |
| 117 | } |
112 | } |
| 118 | else |
113 | else |
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114 | // many drivers need both vertex and fragment shader, 'caboom!' otherwise |
| 119 | shader::compile::fout.frag_color = shader::compile::float4 (1., 0., 1., 1.); |
115 | shader::compile::fout.frag_color = shader::compile::float4 (0., 0., 0., 0.); |
| 120 | |
116 | |
| 121 | fsh_src = shader::shader_builder::stop (); |
117 | fsh_src = shader::shader_builder::stop (); |
| 122 | |
118 | |
| 123 | shader::program_object po = shader::get_program (vsh_src, fsh_src); |
119 | shader::program_object po = shader::get_program (vsh_src, fsh_src); |
| 124 | matmap.insert (pass_data::matmap_t::value_type (this, po)); |
120 | matmap.insert (pass_data::matmap_t::value_type (this, po)); |
