Hi Three Enthusiasts,
I would like to make a planeGeometry transparent in the black parts but still show the red circle that changes size with u_time using shaders.
I tried to put the transparent property to “true” but with no luck. I also tried to apply 0.0 to the alpha channel for transparency (gl_FragColor.a = 0.0) but without success.
Your inputs are much appreciated
Thanks,
Slightly changed fragment shader:
float colVal = dot(color,red_color);
gl_FragColor = vec4( colVal,0.0, 0.0, colVal );
got this:
I would also suggest to not make the plane transparent but use an alpha cutout instead. You can do this by setting the alphaTest property of your shader material to a value like 0.5. In this way you don’t get these ugly dark edges.
If you need blending, you can keep the transparency but set premultipliedAlpha to true.
@prisoner849 and @Mugen87
You guys are bosses !!!
