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Code Issues Releases Wiki Activity

raycasting takes fog into account

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This commit is contained in:
Zeno Rogue 2019-10-26 15:33:57 +02:00
parent 391f421b98
commit 5f9970fce2
1 changed files with 7 additions and 1 deletions
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8
raycaster.cpp
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@ -135,6 +135,7 @@ void enable_raycaster() {
"uniform sampler2D tTextureMap;\n"
"uniform vec4 uWallX[60];\n"
"uniform vec4 uWallY[60];\n"
"uniform vec4 uFogColor;\n"
"uniform int uWallstart[16];\n"
"uniform float uLinearSightRange, uExpStart, uExpDecay;\n";
@ -407,7 +408,8 @@ void enable_raycaster() {
" vec2 inface2 = tmap.xy + tmap.z * inface;\n"
" col.xyz *= texture2D(tTexture, inface2).rgb;\n"
" }\n"
" col.xyz *= max(1. - go / uLinearSightRange, uExpStart * exp(-go / uExpDecay));\n";
" float d = max(1. - go / uLinearSightRange, uExpStart * exp(-go / uExpDecay));\n"
" col.xyz = col.xyz * d + uFogColor.xyz * (1.-d);\n";
if(nil) fmain +=
" if(abs(abs(position.x)-abs(position.y)) < .005) col.xyz /= 2.;\n";
@ -457,6 +459,7 @@ void enable_raycaster() {
fmain +=
" }\n"
" gl_FragColor.xyz += left * uFogColor.xyz;\n"
" gl_FragDepth = 1.;\n"
" }";
@ -651,6 +654,9 @@ EX void cast() {
bind_array(connections, o->tConnections, txConnections, 3);
bind_array(texturemap, o->tTextureMap, txTextureMap, 5);
auto cols = glhr::acolor(darkena(backcolor, 0, 0xFF));
glUniform4f(o->uFogColor, cols[0], cols[1], cols[2], cols[3]);
glVertexAttribPointer(hr::aPosition, 4, GL_FLOAT, GL_FALSE, sizeof(glvertex), &screen[0]);
if(ray::comparison_mode)
glhr::set_depthtest(false);