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[Public WebGL] FF generating: WebGL: bendFunc: dfactor: invaldi enum value 0x201
When I set webgl.berbose to true in FF/Minefield I'm getting this error:
WebGL: bendFunc: dfactor: invaldi enum value 0x201
when executing:
gl.blendFunc(gl.ONE_MINUS_SRC_ALPHA, gl.LESS)
You can see this happen on this page:
http://scenejs.org/dist/curr/extr/examples/hello-teapot/index.html
The spec states LESS is not supported:
http://www.khronos.org/registry/webgl/specs/latest/#CONSTANT_COLOR_BLEND
/* AlphaFunction (not supported in ES20) */
/* NEVER */
/* LESS */
/* EQUAL */
/* LEQUAL */
/* GREATER */
/* NOTEQUAL */
/* GEQUAL */
/* ALWAYS */
/* BlendingFactorDest */
const GLenum ZERO = 0;
const GLenum ONE = 1;
const GLenum SRC_COLOR = 0x0300;
const GLenum ONE_MINUS_SRC_COLOR = 0x0301;
const GLenum SRC_ALPHA = 0x0302;
const GLenum ONE_MINUS_SRC_ALPHA = 0x0303;
const GLenum DST_ALPHA = 0x0304;
const GLenum ONE_MINUS_DST_ALPHA = 0x0305;
Is this operation supported?
I don't see a way to turn on something equivalent to webgl.verbose in Safari/WebKit or Chrome but I haven't seen those
errors/warnings running in these browsers.
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