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panini: fix shader-primitvie cooperation
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@ -1096,11 +1096,12 @@ void enable_raycaster() {
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" if(col.w == 1.) {\n";
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if(hyperbolic) fmain +=
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" mediump float z = at0.z * sinh(go);\n"
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" mediump float w = 1.;\n";
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" mediump vec4 t = at0 * sinh(go);\n";
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else fmain +=
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" mediump float z = at0.z * go;\n"
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" mediump float w = 1.;\n";
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" mediump vec4 t = at0 * go;\n";
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fmain +=
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" t.w = 1.;\n";
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if(levellines) {
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if(hyperbolic)
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@ -1109,11 +1110,13 @@ void enable_raycaster() {
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fmain += "gl_FragColor.xyz *= 0.5 + 0.5 * cos(z * uLevelLines * 2. * PI);\n";
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fsh += "uniform mediump float uLevelLines;\n";
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}
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if(panini_alpha)
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fmain += panini_shader();
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#ifndef GLES_ONLY
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/* todo: fix for Panini */
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fmain +=
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" gl_FragDepth = (" + to_glsl(-vnear-vfar)+"+w*" + to_glsl(2*vnear*vfar)+"/z)/" + to_glsl(vnear-vfar)+";\n"
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" gl_FragDepth = (" + to_glsl(-vnear-vfar)+"+t.w*" + to_glsl(2*vnear*vfar)+"/t.z)/" + to_glsl(vnear-vfar)+";\n"
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" gl_FragDepth = (gl_FragDepth + 1.) / 2.;\n";
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#endif
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