PuaKoala

 jit.gl.mesh @draw_mode points @blend_enable 1 @blend_mode 6 7 @shader postProcess

The postProcess shader creates several points from each vertex using a geometry program that calls EmitVertex() multiple times. 

Is it a general limitation that these emitted vertices do not blend resp. ignore the blend mode 

- e.g. 2 vertices a red one (RGB = 1, 0, 0) and a green one (RGB = 0,1,0) at the same position result in a green rendering and not in yellow ? 

It looks like the vertices that have been created first with EmitVertex() are hidden behind the vertices that are created after.

Hello, 
I use a jit.gl.mesh @draw_mode points @blend_enable 1 @blend_mode 6 7 @shader postProcess. 
The postProcess shader creates several points from each vertex using a geometry program that calls EmitVertex() multiple times. 
Is it a general limitation that these emitted vertices do not blend resp. ignore the blend mode 
- e.g. 2 vertices a red one (RGB = 1, 0, 0) and a green one (RGB = 0,1,0) at the same position result in a green rendering and not in yellow ? 
It looks like the vertices that have been created first with EmitVertex() are hidden behind the vertices that are created after.

Hello, 
I use a jit.gl.mesh @draw_mode points @blend_enable 1 @blend_mode 6 7 @shader postProcess. 
The postProcess shader creates several p

blending-particles-from-geometry-shader

do you have depth disabled (@depth_enable 0) ?

gl_Position = gl_in[0].gl_Position + 0.05;

Output never results in yellow color. I suppose I have a wrong understanding of blend_mode.

image.png

postProcess.jxs

gl_Position = gl_in[0].gl_Position;
color = vec4(1, 0, 0, 1);
EmitVertex();
 
gl_Position = gl_in[0].gl_Position + 0.05;
color = vec4(0, 1, 0, 1);
EmitVertex();

EndPrimitive();

Output never results in  yellow color. I suppose I have a wrong understanding of blend_mode.

@blend_mode 6 1 gives the required result.

OK found it. @blend_mode 6 7 is not working.
@blend_mode 6 1 gives the required result. 

Blending particles from geometry shader