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intra:: more portal combinations are working (product upwards, portal to self)
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Zeno Rogue
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@ -49,6 +49,7 @@ hyperpoint portal_data::to_poco(hyperpoint h) const {
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h[1] /= h[2];
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h[2] = dec.first - d;
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h[3] = 1;
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if(d<0) h[2] = -h[2];
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return h;
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}
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else if(prod && kind == 0) {
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@ -72,6 +73,7 @@ hyperpoint portal_data::to_poco(hyperpoint h) const {
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hyperpoint portal_data::from_poco(hyperpoint h) const {
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if(prod && kind == 1) {
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ld xd = h[2];
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if(d<0) xd = -xd;
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h[2] = 1;
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auto z = product_decompose(h).first;
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return h * exp(d+xd-z);
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@ -101,7 +103,9 @@ EX portal_data make_portal(cellwalker cw, int spin) {
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id.v0 = C0 * exp(id.d);
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}
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else if(prod && cw.spin == cw.at->type - 2) {
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throw hr_exception("cannot construct a portal in this direction");
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id.kind = 1;
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id.d = product_decompose(fac[0]).first;
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id.v0 = C0 * exp(id.d);
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}
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else if(prod) {
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id.kind = 0;
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145
raycaster.cpp
145
raycaster.cpp
@ -15,7 +15,7 @@ EX namespace ray {
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#if CAP_RAY
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/** texture IDs */
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GLuint txConnections = 0, txWallcolor = 0, txTextureMap = 0, txVolumetric = 0, txM = 0, txWall = 0;
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GLuint txConnections = 0, txWallcolor = 0, txTextureMap = 0, txVolumetric = 0, txM = 0, txWall = 0, txPortalConnections = 0;
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EX bool in_use;
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EX bool comparison_mode;
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@ -169,6 +169,7 @@ struct raycaster : glhr::GLprogram {
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GLint tM, uInvLengthM;
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GLint tWall, uInvLengthWall;
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GLint tPortalConnections;
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raycaster(string vsh, string fsh);
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};
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#endif
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@ -219,6 +220,8 @@ raycaster::raycaster(string vsh, string fsh) : GLprogram(vsh, fsh) {
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tTextureMap = glGetUniformLocation(_program, "tTextureMap");
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tVolumetric = glGetUniformLocation(_program, "tVolumetric");
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tPortalConnections = glGetUniformLocation(_program, "tPortalConnections");
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tM = glGetUniformLocation(_program, "tM");
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uInvLengthM = glGetUniformLocation(_program, "uInvLengthM");
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@ -965,32 +968,36 @@ void raygen::apply_reflect() {
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void raygen::emit_intra_portal(int gid1, int gid2) {
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int they_curvature = false;
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if(1) {
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intra::resetter ir;
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intra::switch_to(gid2);
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they_curvature = hyperbolic ? -1 : sphere ? 1 : 0;
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/* product also has 0 */
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}
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if(prod && they_curvature) {
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string fn = in_h2xe() ? "to_poco_h2xr_h" : "to_poco_s2xr_s";
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fmain +=
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" mediump vec4 nposition = position + tangent * xspeed * 1e-3;\n"
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" position = "+fn+"(position);\n"
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" position.z = 0.;\n" // zpos - uPLevel;\n"
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" nposition = "+fn+"(nposition);\n"
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" nposition.z = zspeed * 1e-3;\n";
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}
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else if(prod) {
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string fn = in_h2xe() ? "to_poco_h2xr_e" : "to_poco_s2xr_e";
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fmain +=
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" mediump vec4 nposition = position + tangent * xspeed * 1e-3;\n"
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" mediump mat4 tkt = " + getM("mid+1") + ";\n"
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" position = "+fn+"(tkt * position);\n"
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" position.y = zpos;\n"
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" nposition = "+fn+"(tkt * nposition);\n"
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" nposition.y = zpos + zspeed * 1e-3;\n";
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if(prod) {
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fmain += "mediump vec4 nposition;\n";
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fmain += "if(pconnection.x != .5) {\n"; // kind != 0
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if(1) {
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string fn = in_h2xe() ? "to_poco_h2xr_h" : "to_poco_s2xr_s";
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fmain +=
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" nposition = position + tangent * xspeed * 1e-3;\n"
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" position = "+fn+"(position);\n"
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" position.z = 0.;\n" // zpos - uPLevel;\n"
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" nposition = "+fn+"(nposition);\n"
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" nposition.z = zspeed * 1e-3;\n"
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" if(pconnection.y < .5) { nposition.z = -nposition.z; }\n";
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}
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fmain += " } else {\n";
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if(1) {
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string fn = in_h2xe() ? "to_poco_h2xr_e" : "to_poco_s2xr_e";
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fmain +=
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" nposition = position + tangent * xspeed * 1e-3;\n"
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" mediump mat4 tkt = " + getM("mid+1") + ";\n"
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" position = "+fn+"(tkt * position);\n"
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" position.y = zpos;\n"
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" nposition = "+fn+"(tkt * nposition);\n"
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" nposition.y = zpos + zspeed * 1e-3;\n";
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}
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fmain += " }\n";
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}
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else {
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fmain +=
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@ -1012,43 +1019,47 @@ void raygen::emit_intra_portal(int gid1, int gid2) {
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" position = m * position;\n"
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" nposition = m * nposition;\n";
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int we_curvature = hyperbolic ? -1 : sphere ? 1 : 0;
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intra::resetter ir;
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intra::switch_to(gid2);
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if(prod && we_curvature) {
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string sgn = in_h2xe() ? "-" : "+";
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string fn = in_h2xe() ? "from_poco_h2xr_h" : "from_poco_s2xr_s";
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ld their_plevel = cgi.plevel / 2;
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fmain +=
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" zspeed = (nposition.z - position.z) * 1e3;\n"
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" zpos = position.z + " + glhr::to_glsl(their_plevel) + ";\n"
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" position = "+fn+"(position);\n"
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" nposition = "+fn+"(nposition);\n"
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" tangent = (nposition - position) * 1e3;\n"
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" mediump float pnorm = tangent.z * position.z "+sgn+" tangent.x * position.x "+sgn+" tangent.y * position.y;\n"
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" tangent -= position * pnorm;\n"
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" xspeed = sqrt(tangent.x * tangent.x + tangent.y * tangent.y "+sgn+" tangent.z * tangent.z);\n"
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" tangent /= xspeed;\n";
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}
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else if(prod) {
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string sgn = in_h2xe() ? "-" : "+";
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string fn = in_h2xe() ? "from_poco_h2xr_e" : "from_poco_s2xr_e";
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fmain +=
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" mediump mat4 itkt = " + getM("mid+2") + ";\n";
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fmain +=
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" zpos = position.y;\n"
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" zspeed = (nposition.y - zpos) * 1e3;\n"
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" position = itkt * "+fn+"(position);\n"
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" nposition = itkt * "+fn+"(nposition);\n"
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" tangent = (nposition - position) * 1e3;\n"
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" mediump float pnorm = tangent.z * position.z "+sgn+" dot(position.xy, tangent.xy);\n"
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" tangent -= position * pnorm;\n"
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" xspeed = sqrt(dot(tangent.xy, tangent.xy) "+sgn+" tangent.z * tangent.z);\n"
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" tangent /= xspeed;\n"
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" mediump float l = xspeed*xspeed+zspeed*zspeed;\n"
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" xspeed /= sqrt(l); zspeed /= sqrt(l);\n";
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if(prod) {
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fmain += "if(pconnection.z != .5) {\n"; // kind != 0
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if(1) {
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string sgn = in_h2xe() ? "-" : "+";
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string fn = in_h2xe() ? "from_poco_h2xr_h" : "from_poco_s2xr_s";
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fmain +=
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" if(pconnection.w < .5) { position.z = -position.z; nposition.z = -nposition.z; }\n"
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" zspeed = (nposition.z - position.z) * 1e3;\n"
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" zpos = position.z + (pconnection.w - .5) * 16.;\n"
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" position = "+fn+"(position);\n"
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" nposition = "+fn+"(nposition);\n"
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" tangent = (nposition - position) * 1e3;\n"
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" mediump float pnorm = tangent.z * position.z "+sgn+" tangent.x * position.x "+sgn+" tangent.y * position.y;\n"
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" tangent -= position * pnorm;\n"
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" xspeed = sqrt(tangent.x * tangent.x + tangent.y * tangent.y "+sgn+" tangent.z * tangent.z);\n"
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" tangent /= xspeed;\n";
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}
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fmain += " } else {\n";
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if(1) {
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string sgn = in_h2xe() ? "-" : "+";
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string fn = in_h2xe() ? "from_poco_h2xr_e" : "from_poco_s2xr_e";
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fmain +=
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" mediump mat4 itkt = " + getM("mid+2") + ";\n";
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fmain +=
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" zpos = position.y;\n"
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" zspeed = (nposition.y - zpos) * 1e3;\n"
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" position = itkt * "+fn+"(position);\n"
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" nposition = itkt * "+fn+"(nposition);\n"
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" tangent = (nposition - position) * 1e3;\n"
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" mediump float pnorm = tangent.z * position.z "+sgn+" dot(position.xy, tangent.xy);\n"
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" tangent -= position * pnorm;\n"
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" xspeed = sqrt(dot(tangent.xy, tangent.xy) "+sgn+" tangent.z * tangent.z);\n"
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" tangent /= xspeed;\n"
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" mediump float l = xspeed*xspeed+zspeed*zspeed;\n"
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" xspeed /= sqrt(l); zspeed /= sqrt(l);\n";
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}
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fmain += "}\n";
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}
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else {
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string sgn = hyperbolic ? "-" : "+";
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@ -1388,16 +1399,18 @@ void raygen::emit_iterate(int gid1) {
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if(intra::in) {
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int q = isize(intra::data);
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fmain +=" mediump vec4 pconnection = texture2D(tPortalConnections, u);\n";
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fmain += "if(pconnection.x == 0.) {\n";
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fmain += no_intra_portal;
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fmain += " } else\n";
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for(int gid2=0; gid2<q; gid2++) {
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if(gid2 == q-1)
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fmain += " {\n";
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else {
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fmain += " if(nwalloffset < " + its(intra::data[gid2+1].wallindex) + ") {\n";
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}
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if(gid1 == gid2)
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fmain += no_intra_portal;
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else
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emit_intra_portal(gid1, gid2);
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emit_intra_portal(gid1, gid2);
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if(gid2 == q-1)
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fmain += " }\n";
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else
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@ -1487,6 +1500,9 @@ void raygen::create() {
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"uniform mediump vec4 uFogColor;\n"
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"uniform mediump float uLinearSightRange, uExpStart, uExpDecay;\n";
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if(intra::in) fsh +=
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"uniform mediump sampler2D tPortalConnections;\n";
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if(wall_via_texture) {
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fsh +=
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"uniform mediump sampler2D tWall;\n"
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@ -1878,7 +1894,7 @@ struct raycast_map {
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int length, per_row, rows, mirror_shift, deg;
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vector<array<float, 4>> connections, wallcolor, texturemap, volumetric;
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vector<array<float, 4>> connections, wallcolor, texturemap, volumetric, portal_connections;
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void apply_shape() {
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length = 4096;
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@ -1887,6 +1903,7 @@ struct raycast_map {
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rows = next_p2((isize(lst)+per_row-1) / per_row);
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int q = length * rows;
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connections.resize(q);
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portal_connections.resize(q);
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wallcolor.resize(q);
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texturemap.resize(q);
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volumetric.resize(q);
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@ -2022,6 +2039,7 @@ struct raycast_map {
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auto code = enc(ids[c1], 0);
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connections[u][0] = code[0];
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connections[u][1] = code[1];
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portal_connections[u][0] = 0;
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if(isWall3(c1)) {
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celldrawer dd;
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dd.c = c1;
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@ -2066,6 +2084,10 @@ struct raycast_map {
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ms.push_back(p->id1.T);
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ms.push_back(p->id2.iT);
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connections[u][2] = (k+.5) / 1024.;
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portal_connections[u][0] = p->id1.kind / 16. + .5;
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portal_connections[u][1] = p->id1.d / 16 + .5;
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portal_connections[u][2] = p->id2.kind / 16. + .5;
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portal_connections[u][3] = p->id2.d / 16 + .5;
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}
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else {
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transmatrix T = currentmap->iadj(c, i) * inverse(ms[wo + i]);
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@ -2143,6 +2165,7 @@ struct raycast_map {
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bind_array(connections, o->tConnections, txConnections, 3, length);
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bind_array(texturemap, o->tTextureMap, txTextureMap, 5, length);
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if(volumetric::on) bind_array(volumetric, o->tVolumetric, txVolumetric, 6, length);
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bind_array(portal_connections, o->tPortalConnections, txPortalConnections, 1, length);
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if(o->uMirrorShift != -1) {
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glUniform1i(o->uMirrorShift, mirror_shift);
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