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ray:: renamed bt/minkowski function to deparabolic and enparabolic for cinsistency

This commit is contained in:
Zeno Rogue 2021-10-07 18:23:27 +02:00
parent fe1e1d1f16
commit 77feff1c30
1 changed files with 10 additions and 12 deletions
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22
raycaster.cpp
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@ -1011,8 +1011,8 @@ void raygen::emit_intra_portal(int gid1, int gid2) {
fmain +=
" mediump vec4 nposition = position + tangent * 1e-3;\n"
" mediump mat4 tkt = " + getM("mid+1") + ";\n"
" position = minkowski_to_bt(position);\n"
" nposition = minkowski_to_bt(nposition);\n"
" position = deparabolic13(position);\n"
" nposition = deparabolic13(nposition);\n"
" position = tkt * position;\n"
" nposition = tkt * nposition;\n"
" position.z *= exp(position.y);\n"
@ -1112,8 +1112,8 @@ void raygen::emit_intra_portal(int gid1, int gid2) {
" nposition.z *= exp(-nposition.y);\n"
" position = itkt * position;\n"
" nposition = itkt * nposition;\n"
" position = bt_to_minkowski(position);\n"
" nposition = bt_to_minkowski(nposition);\n";
" position = enparabolic13(position);\n"
" nposition = enparabolic13(nposition);\n";
}
else {
string he = hyperbolic ? "from_poco_h3" : "from_poco_s3";
@ -1260,8 +1260,8 @@ void raygen::emit_iterate(int gid1) {
fmain += " mediump vec4 pos = position;\n";
if(nil) fmain += "if(which == 2 || which == 5) pos.z = 0.;\n";
else if(hyperbolic && bt::in()) fmain +=
"pos = vec4(-log(pos.w-pos.x), pos.y, pos.z, 1);\n"
"pos.yz *= exp(pos.x);\n";
"pos = deparabolic13(pos);\n"
"pos.xyz = pos.zxy;\n";
else if(hyperbolic || sphere) fmain +=
"pos /= pos.w;\n";
else if(prod) fmain +=
@ -1478,10 +1478,8 @@ void raygen::add_functions() {
");}\n"
);
// these minkowski_to_bt and bt_to_minkowski do not take binary_width nor log(2)/2 into account
add_if("minkowski_to_bt",
"mediump vec4 minkowski_to_bt(mediump vec4 h) {\n"
add_if("deparabolic13",
"mediump vec4 deparabolic13(mediump vec4 h) {\n"
" h /= (1. + h[3]);\n"
" h[0] -= 1.;\n"
" h /= h.x*h.x + h.y*h.y + h.z * h.z;\n"
@ -1494,8 +1492,8 @@ void raygen::add_functions() {
" return res;\n"
" }\n\n");
add_if("bt_to_minkowski",
"mediump vec4 bt_to_minkowski(mediump vec4 h) {\n"
add_if("enparabolic13",
"mediump vec4 enparabolic13(mediump vec4 h) {\n"
" mediump vec4 res;\n"
" float diag = (h.x*h.x + h.y*h.y)/2.;\n"
" res.x = sinh(h.z) + diag * exp(-h.z);\n"