FGFS-4.1/OpenSceneGraph
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Added second texture to osgprerender demo to test out multitexture in

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osg::Geometry, it works!!
This commit is contained in:
Robert Osfield
2002-07-12 21:42:27 +00:00
parent d87d27b749
commit 5504f51774
1 changed files with 19 additions and 3 deletions
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22
src/Demos/osgprerender/osgprerender.cpp
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@@ -102,9 +102,7 @@ void MyCullCallback::doPreRender(osg::Node&, osgUtil::CullVisitor& cv)
osgUtil::RenderStage* previous_stage = cv.getCurrentRenderBin()->_stage;
// set up the background color and clear mask.
osg::Vec4 clear_color = previous_stage->getClearColor();
clear_color[3] = 0.0f; // set the alpha to zero.
rtts->setClearColor(clear_color);
rtts->setClearColor(osg::Vec4(0.0f,0.0f,0.0f,0.0f));
rtts->setClearMask(previous_stage->getClearMask());
// set up to charge the same RenderStageLighting is the parent previous stage.
@@ -331,7 +329,9 @@ osg::Node* createPreRenderSubGraph(osg::Node* subgraph)
// pass the created vertex array to the points geometry object.
polyGeom->setVertexArray(vertices);
polyGeom->setTexCoordArray(0,texcoords);
osg::Vec4Array* colors = new osg::Vec4Array;
colors->push_back(osg::Vec4(1.0f,1.0f,1.0f,1.0f));
@@ -353,6 +353,22 @@ osg::Node* createPreRenderSubGraph(osg::Node* subgraph)
texture->setImage(image);
stateset->setTextureAttributeAndModes(0, texture,osg::StateAttribute::ON);
{
// set up the second tex coord array for the an additional texture
// to add texture to the flag.
polyGeom->setTexCoordArray(1,texcoords);
osg::Image* overlay_image = osgDB::readImageFile("lz.rgb");
osg::Texture* overlay_texture = new osg::Texture;
overlay_texture->setImage(overlay_image);
stateset->setTextureAttributeAndModes(1, overlay_texture,osg::StateAttribute::ON);
osg::TexEnv* overlay_texenv = new osg::TexEnv;
overlay_texenv->setMode(osg::TexEnv::BLEND);
overlay_texenv->setColor(osg::Vec4(0.1f,0.1f,0.1f,1.0f));
stateset->setTextureAttribute(1, overlay_texenv);
}
polyGeom->setStateSet(stateset);
polyGeom->setAppCallback(new MyGeometryCallback(origin,xAxis,yAxis,zAxis,1.0,1.0/width,0.2f));