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added function to_glsl to convert ld to GLSL strings

This commit is contained in:
Zeno Rogue 2020-05-09 18:30:36 +02:00
parent 4e13e05d6a
commit 306d8c3ace
2 changed files with 16 additions and 12 deletions
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6
glhr.cpp
View File

@ -42,6 +42,12 @@ EX void glError(const char* GLcall, const char* file, const int line) {
EX namespace glhr {
EX string to_glsl(ld x) {
char buf[64];
snprintf(buf, 64, "float(%.10e)", x);
return buf;
}
#if HDR
struct glmatrix {
GLfloat a[4][4];

22
raycaster.cpp
View File

@ -183,6 +183,7 @@ EX hookset<void(string&, string&)> hooks_rayshader;
EX hookset<bool(shared_ptr<raycaster>)> hooks_rayset;
void enable_raycaster() {
using glhr::to_glsl;
if(geometry != last_geometry) {
reset_raycaster();
}
@ -380,7 +381,7 @@ void enable_raycaster() {
if(stretch::in()) {
fmain +=
"tangent = s_itranslate(position) * tangent;\n"
"tangent[2] /= sqrt(1.+stretch);\n"
"tangent[2] /= " + to_glsl(stretch::not_squared()) + ";\n"
"tangent = s_translate(position) * tangent;\n";
;
}
@ -498,9 +499,6 @@ void enable_raycaster() {
" if(which == -1 && dist == 0.) return;";
}
if(stretch::in() || sl2)
fsh += "const mediump float stretch = float(" + fts(stretch::factor) + ");\n";
// shift d units
if(use_reflect) fmain +=
"bool reflect = false;\n";
@ -563,8 +561,8 @@ void enable_raycaster() {
"vel = s_itranslate(pos) * vel;\n"
"tra = s_itranslate(pos) * tra;\n"
"return s_translate(pos) * vec4(\n"
" (vel.y*tra.z+vel.z*tra.y) * -(-stretch-2.), "
" (vel.x*tra.z+vel.z*tra.x) * (-stretch-2.), "
" (vel.y*tra.z+vel.z*tra.y) * " + to_glsl(-(-stretch::factor-2)) + ", "
" (vel.x*tra.z+vel.z*tra.x) * " + to_glsl(-stretch::factor-2.) + ", "
" 0, 0);\n"
"}\n";
}
@ -579,8 +577,8 @@ void enable_raycaster() {
"vel = s_itranslate(pos) * vel;\n"
"tra = s_itranslate(pos) * tra;\n"
"return s_translate(pos) * vec4(\n"
" (vel.y*tra.z+vel.z*tra.y) * -stretch, "
" (vel.x*tra.z+vel.z*tra.x) * stretch, "
" (vel.y*tra.z+vel.z*tra.y) * " + to_glsl(-stretch::factor) + ", "
" (vel.x*tra.z+vel.z*tra.x) * " + to_glsl(stretch::factor) + ", "
" 0, 0);\n"
"}\n";
}
@ -791,7 +789,7 @@ void enable_raycaster() {
fmain +=
"tangent = s_itranslate(position) * tangent;\n"
"tangent[3] = 0.;\n"
"float nvelsquared = dot(tangent.xy, tangent.xy) + (1.+stretch) * tangent.z * tangent.z;\n"
"float nvelsquared = dot(tangent.xy, tangent.xy) + " + to_glsl(stretch::squared()) + " * tangent.z * tangent.z;\n"
"tangent /= sqrt(nvelsquared);\n"
"tangent = s_translate(position) * tangent;\n";
}
@ -838,7 +836,7 @@ void enable_raycaster() {
" if(col[3] > 0.0) {\n";
if(hard_limit < NO_LIMIT)
fmain += " if(go > float(" + fts(hard_limit) + ")) { gl_FragDepth = 1.; return; }\n";
fmain += " if(go > " + to_glsl(hard_limit) + ") { gl_FragDepth = 1.; return; }\n";
if(!(levellines && disable_texture)) fmain +=
" mediump vec2 inface = map_texture(position, which+walloffset);\n"
@ -858,7 +856,7 @@ void enable_raycaster() {
if(use_reflect) fmain +=
" if(col.w == 1.) {\n"
" col.w = float("+fts(1-reflect_val)+");\n"
" col.w = " + to_glsl(1-reflect_val)+";\n"
" reflect = true;\n"
" }\n";
@ -890,7 +888,7 @@ void enable_raycaster() {
#ifndef GLES_ONLY
fmain +=
" gl_FragDepth = (-float("+fts(vnear+vfar)+")+w*float("+fts(2*vnear*vfar)+")/z)/float("+fts(vnear-vfar)+");\n"
" gl_FragDepth = (" + to_glsl(-vnear+vfar)+"+w*" + to_glsl(2*vnear*vfar)+"/z)/" + to_glsl(vnear-vfar)+";\n"
" gl_FragDepth = (gl_FragDepth + 1.) / 2.;\n";
#endif