67 lines
1.6 KiB
Text
67 lines
1.6 KiB
Text
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!!permu OFFSETMAPPING
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!!permu FULLBRIGHT
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!!permu FOG
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!!cvarf r_glsl_offsetmapping_scale
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//this is what normally draws all of your walls, even with rtlights disabled
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//note that the '286' preset uses drawflat_walls instead.
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#include "sys/fog.h"
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#if defined(OFFSETMAPPING)
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varying vec3 eyevector;
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#endif
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#ifdef VERTEX_SHADER
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attribute vec2 v_texcoord;
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attribute vec2 v_lmcoord;
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varying vec2 tc, lm;
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#if defined(OFFSETMAPPING)
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uniform vec3 e_eyepos;
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attribute vec3 v_normal;
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attribute vec3 v_svector;
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attribute vec3 v_tvector;
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#endif
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void main ()
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{
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#if defined(OFFSETMAPPING)
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vec3 eyeminusvertex = e_eyepos - v_position.xyz;
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eyevector.x = dot(eyeminusvertex, v_svector.xyz);
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eyevector.y = -dot(eyeminusvertex, v_tvector.xyz);
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eyevector.z = dot(eyeminusvertex, v_normal.xyz);
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#endif
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tc = v_texcoord;
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lm = v_lmcoord;
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gl_Position = ftetransform();
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}
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#endif
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#ifdef FRAGMENT_SHADER
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uniform sampler2D s_t0;
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uniform sampler2D s_t1;
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#ifdef OFFSETMAPPING
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uniform sampler2D s_t2;
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#endif
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#ifdef FULLBRIGHT
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uniform sampler2D s_t4;
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#endif
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varying vec2 tc, lm;
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uniform vec4 e_lmscale;
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uniform vec4 e_colourident;
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#ifdef OFFSETMAPPING
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#include "sys/offsetmapping.h"
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#endif
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void main ()
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{
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#ifdef OFFSETMAPPING
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vec2 tcoffsetmap = offsetmap(s_t2, tc, eyevector);
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#define tc tcoffsetmap
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#endif
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gl_FragColor = texture2D(s_t0, tc) * texture2D(s_t1, lm) * e_lmscale;
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#ifdef FULLBRIGHT
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gl_FragColor.rgb += texture2D(s_t4, tc).rgb;
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#endif
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gl_FragColor = gl_FragColor * e_colourident;
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#ifdef FOG
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gl_FragColor = fog4(gl_FragColor);
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#endif
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}
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#endif
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