Hello again,
First of all, thanks for the quick reply and changes.
I checked out and compiled (again) today with gv-beta.
Unfortunately I cant see a modulation effect when setting a material.
Textures are applied always in REPLACE mode...
I am not setting a light in the VRML file, but use only the SceneManager
light, may that be a problem ?
Greets,
Daniel
Gerrit Voss wrote:
Hi,
On Tue, 2004-03-30 at 10:17, Gerrit Voss wrote:
Hi,
On Mon, 2004-03-29 at 23:02, Daniel Grest wrote:
Hello OpenSG community,
in short:
Is there a way to switch between GL_REPLACE and GL_MODULATE in a vrml file?
I have the problem, that i want to render a large vrml scene with some
textures replacing the material values, while others should be rendered
as GL_MODULATE.
VRML does support it implicitly by switching between lit and unlit
settings. The only trick left if any of our loaders support this,
I'll check this and get back to you.
ok, I would not say they do it right but the effect is at least for a
small test the as expected. Just leave out the material field for your
replace appearance, example :
Lit material ==> modulate effect
appearance Appearance
{
material Material { diffuseColor 1 1 0 }
texture ImageTexture
{
url "tree.jpg"
repeatS TRUE
repeatT TRUE
}
}
Unlit material ==> replace effect
appearance Appearance
{
texture ImageTexture
{
url "tree.jpg"
repeatS TRUE
repeatT TRUE
}
}
Just a small warning, the effects seem to be ok (at least for my small
test scene). I will look at it and fix the resulting OpenSG tree in
order to avoid inconsistencies I still expect to be possible (without
having checked the OpenGL spec too ;-)). But I hope you can continue to
go on with this workaround ;-)
regards,
gerrit
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