WebGL2 glUniform1i: wrong uniform function for type

[Evgeny Demidov]

(I hope:) I can render into int16 textures in WebGL 2 (Google
46.0.2478.0 canary)
(no "FBOs are not complete" errors at last) in
http://www.ibiblio.org/e-notes/webgl/2/flat_wave2i300.htm

but I've got
[GroupMarkerNotSet(crbug.com/242999)!:24F76C05]GL ERROR :
GL_INVALID_OPERATION : glUniform1i: wrong uniform function for type

for something like
sampLoc = gl.getUniformLocation(prog, "samp");
...
gl.uniform1i(sampLoc, 0);
gl.uniform1i(samp1Loc, 1);
what is wrong here?

Evgeny

[Jeff Dash]

It's hard to tell without taking a closer look, but I can tell you that R16I is renderable in WebGL 2, though it is not filterable. Neither of these should affect whether you can sample with NEAREST from an R16I texture, if that's all you need. (You can always do this)

Evgeny

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[Evgeny Demidov]

yes, I can render into
   gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA16I, n, n, 0, gl.RGBA_INTEGER, gl.SHORT, pix)

I can't set isampler value (e.g. 1,2,3...)
  uniform isampler2D samp;
void main(void) {
   fragColor = vec4(0.01*float(texture(samp, vTexCoord).r), 0., 0., 1.);
....
   var isampLoc  = gl.getUniformLocation(prog_show, "samp")
   gl.uniform1i(isampLoc, 0)        <- error is here

may be it is not implemented yet. I filled an issue at
https://code.google.com/p/chromium/issues/detail?id=519399


8/12/2015 5:12 AM, Jeff Dash:

[Jeff Dash]

I believe it's not yet implemented.