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asonov:: mirrors in ray

This commit is contained in:
Zeno Rogue 2019-11-09 12:12:16 +01:00
parent 93e8d6f92a
commit cbc4cff5bc
1 changed files with 27 additions and 3 deletions
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30
raycaster.cpp
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@ -88,7 +88,7 @@ struct raycaster : glhr::GLprogram {
GLint uStart, uStartid, uM, uLength, uFovX, uFovY, uIPD;
GLint uWallstart, uWallX, uWallY;
GLint tConnections, tWallcolor, tTextureMap;
GLint uBinaryWidth, uPLevel, uLP, uStraighten;
GLint uBinaryWidth, uPLevel, uLP, uStraighten, uReflectX, uReflectY;
GLint uLinearSightRange, uExpStart, uExpDecay;
GLint uBLevel;
@ -110,6 +110,8 @@ struct raycaster : glhr::GLprogram {
uStraighten = glGetUniformLocation(_program, "uStraighten");
uPLevel = glGetUniformLocation(_program, "uPLevel");
uLP = glGetUniformLocation(_program, "uLP");
uReflectX = glGetUniformLocation(_program, "uReflectX");
uReflectY = glGetUniformLocation(_program, "uReflectY");
uLinearSightRange = glGetUniformLocation(_program, "uLinearSightRange");
uExpDecay = glGetUniformLocation(_program, "uExpDecay");
@ -135,7 +137,7 @@ void enable_raycaster() {
deg = S7; if(prod) deg += 2;
if(!our_raycaster) {
bool asonov = hr::asonov::in();
bool use_reflect = reflect_val && !nil && !levellines && !asonov;
bool use_reflect = reflect_val && !nil && !levellines;
string vsh =
"attribute vec4 aPosition;\n"
@ -682,7 +684,23 @@ void enable_raycaster() {
" tangent = xpush(x) * xtan;\n"
" continue;\n"
" }\n";
if(sol && !nih) fmain +=
if(asonov) {
fmain +=
" if(reflect) {\n"
" if(which == 4 || which == 10) tangent = refl(tangent, position.z, uReflectX);\n"
" else if(which == 5 || which == 11) tangent = refl(tangent, position.z, uReflectY);\n"
" else tangent.z = -tangent.z;\n"
" }\n";
fsh +=
"uniform vec4 uReflectX, uReflectY;\n"
"vec4 refl(vec4 t, float z, vec4 r) {\n"
"t.x *= exp(z); t.y /= exp(z);\n"
"t -= dot(t, r) * r;\n"
"t.x /= exp(z); t.y *= exp(z);\n"
"return t;\n"
"}\n";
}
else if(sol && !nih && !asonov) fmain +=
" if(reflect) {\n"
" if(which == 0 || which == 4) tangent.x = -tangent.x;\n"
" else if(which == 1 || which == 5) tangent.y = -tangent.y;\n"
@ -937,6 +955,12 @@ EX void cast() {
if(o->uStraighten != -1) {
glUniformMatrix4fv(o->uStraighten, 1, 0, glhr::tmtogl_transpose(asonov::straighten).as_array());
}
if(o->uReflectX != -1) {
auto h = glhr::pointtogl(tangent_length(spin(90*degree) * asonov::ty, 2));
glUniform4fv(o->uReflectX, 1, &h[0]);
h = glhr::pointtogl(tangent_length(spin(90*degree) * asonov::tx, 2));
glUniform4fv(o->uReflectY, 1, &h[0]);
}
if(o->uPLevel != -1)
glUniform1f(o->uPLevel, cgi.plevel / 2);
if(o->uBLevel != -1)