diff options
Diffstat (limited to 'gfx/gl/shaders/networkCommon.glsl')
| -rw-r--r-- | gfx/gl/shaders/networkCommon.glsl | 45 |
1 files changed, 26 insertions, 19 deletions
diff --git a/gfx/gl/shaders/networkCommon.glsl b/gfx/gl/shaders/networkCommon.glsl index 2639eb1..e1811bc 100644 --- a/gfx/gl/shaders/networkCommon.glsl +++ b/gfx/gl/shaders/networkCommon.glsl @@ -16,26 +16,33 @@ uniform float flatDistance = 1000000; out vec2 texCoord; out vec3 rposition; -void -doVertex(const ivec3 end, const int v, const float texY, const mat2 rot) +float +segDist(const ivec3 a, const ivec3 b) { - rposition = vec3(rot * profile[v].xy, profile[v].z); - ivec3 vpos = end + ivec3(rposition); - gl_Position = viewProjection * vec4(vpos - viewPoint, 1); - texCoord = vec2(texturePos[v], texY); - EmitVertex(); + return min(distance(viewPoint, a), distance(viewPoint, b)); } -void -doSeg(const float dist, const ivec3 apos, const ivec3 bpos, const float atexY, const float btexY, const mat2 arot, - const mat2 brot) -{ - if (dist < clipDistance) { - int vstep = (dist < flatDistance) ? 1 : profile.length() - 1; - for (int v = 0; v < profile.length(); v += vstep) { - doVertex(bpos, v, btexY, brot); - doVertex(apos, v, atexY, arot); +ifelse( + TYPE, .gs, + // Begin: Geometry shader only function + void doVertex(const ivec3 end, const int v, const float texY, const mat2 rot) { + rposition = vec3(rot * profile[v].xy, profile[v].z); + ivec3 vpos = end + ivec3(rposition); + gl_Position = viewProjection * vec4(vpos - viewPoint, 1); + texCoord = vec2(texturePos[v], texY); + EmitVertex(); } - EndPrimitive(); - } -} + + void doSeg(const float dist, const ivec3 apos, const ivec3 bpos, const float atexY, const float btexY, + const mat2 arot, const mat2 brot) { + if (dist < clipDistance) { + int vstep = (dist < flatDistance) ? 1 : profile.length() - 1; + for (int v = 0; v < profile.length(); v += vstep) { + doVertex(bpos, v, btexY, brot); + doVertex(apos, v, atexY, arot); + } + EndPrimitive(); + } + } + // End: Geometry shader only function +) |