Tagged Questions
-1
votes
1answer
44 views
How to draw a circle with WebGL using GL_POINTS
I'm trying to draw a circle using simple vertices points and a big gl_PointSize value. I found this example and try to reproduce it on WebGL with no success.
0
votes
1answer
77 views
scaling point sprites with distance
How can you scale a point sprite by its distance from the camera?
GLSL fragment shader: gl_PointSize = size / gl_Position.w; seems along the right tracks; for any given scene all sprites seem nicely ...
2
votes
1answer
118 views
mat3x4 in webGL shaders
I am porting the IQM bone animation format to Javascript and have run into a problem...
The vertex shader is failing to compile and the only error message I get out is 'mat3x4' : syntax error on the ...
1
vote
0answers
275 views
shader-based particle systems
I have a classic particle system where each particle is represented by a quad and, each time step, I move each particle.
My target is webGL which means I don't have instancing, attribute divisors nor ...
3
votes
0answers
580 views
GLSL pack floats into an RGBA texture
I want to compose conventional triangle-based models and particles with a ray-traced scene at a reasonable frame-rate.
webGL does not let you write the gl_FragDepth in the fragment shader. You ...
