diff options
Diffstat (limited to 'src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-1pass.fp')
| -rw-r--r-- | src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-1pass.fp | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-1pass.fp b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-1pass.fp index e12eef4b1..94e551832 100644 --- a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-1pass.fp +++ b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-1pass.fp @@ -16,6 +16,14 @@ void main (void) { + // CDTriangulator2D.extractBoundaryTriangles(..): + // 0 > gcv_TexCoord.y : hole or holeLike + // 0 < gcv_TexCoord.y : !hole (outer) + // + // 0 == gcv_TexCoord.x : vertex-0 of triangle + // 0.5 == gcv_TexCoord.x : vertex-1 of triangle + // 1 == gcv_TexCoord.x : vertex-2 of triangle + // vec2 rtex = vec2(abs(gcv_TexCoord.x),abs(gcv_TexCoord.y)); vec3 c = gcu_ColorStatic.rgb; @@ -39,7 +47,6 @@ void main (void) vec2 f = vec2((dtx.y - dtx.x + 2.0*rtex.x*dtx.x), (dty.y - dty.x + 2.0*rtex.x*dty.x)); float position = rtex.y - (rtex.x * (1.0 - rtex.x)); - // FIXME: will we ever set gcu_Alpha != 1.0 ? If not, a==alpha! float a = clamp(0.5 - ( position/length(f) ) * sign(gcv_TexCoord.y), 0.0, 1.0); alpha = gcu_Alpha * a; } |