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panini: fix shader-primitvie cooperation

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This commit is contained in:
Zeno Rogue 2020-11-01 21:39:18 +01:00
parent fd9fb83540
commit c88827c09f
1 changed files with 9 additions and 6 deletions
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15
raycaster.cpp
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@ -1096,11 +1096,12 @@ void enable_raycaster() {
" if(col.w == 1.) {\n";
if(hyperbolic) fmain +=
" mediump float z = at0.z * sinh(go);\n"
" mediump float w = 1.;\n";
" mediump vec4 t = at0 * sinh(go);\n";
else fmain +=
" mediump float z = at0.z * go;\n"
" mediump float w = 1.;\n";
" mediump vec4 t = at0 * go;\n";
fmain +=
" t.w = 1.;\n";
if(levellines) {
if(hyperbolic)
@ -1110,10 +1111,12 @@ void enable_raycaster() {
fsh += "uniform mediump float uLevelLines;\n";
}
if(panini_alpha)
fmain += panini_shader();
#ifndef GLES_ONLY
/* todo: fix for Panini */
fmain +=
" gl_FragDepth = (" + to_glsl(-vnear-vfar)+"+w*" + to_glsl(2*vnear*vfar)+"/z)/" + to_glsl(vnear-vfar)+";\n"
" gl_FragDepth = (" + to_glsl(-vnear-vfar)+"+t.w*" + to_glsl(2*vnear*vfar)+"/t.z)/" + to_glsl(vnear-vfar)+";\n"
" gl_FragDepth = (gl_FragDepth + 1.) / 2.;\n";
#endif