[PD] Gem: Change blending mode ?
listes at sourcelibre.com
Thu May 11 05:07:12 CEST 2006
Hem, which red book ? sorrry.
So, if I understand well : "Transparency is best implemented using
blend function (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA) with primitives
sorted from farthest to nearest." ?
Taken from http://www.mevis.de/opengl/glBlendFunc.html
Thanks, tigital and Chris.
By the way, James, should I always replace the Gem that is bundled
with Hans installer for your Gem version (from your Mac.com site) ?
On 5/8/06, chris clepper <cgc at humboldtblvd.com> wrote:
> glBlendFunc() There is a whole section on it in the RedBook.
> Fragment shaders are also useful for this.
> On 5/8/06, Alexandre Quessy <listes at sourcelibre.com> wrote:
> Hi list,
> I am much playing around with alpha blending in Gem these days and I
> was wondering how I could change the default blending mode between
> geos. I think it is feasable with openGL objects, but there are only
> two openGL examples in the example/help patches.
> The default blending mode between geos is "add". I would like to set
> it to "multiply" in some cases and "mask", so that when we are viewing
> a geo with a pix texture on it, we don't see the other geos' pix
> textures behind it ? I am sure this is possible. How ?
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