FGFS-4.1/OpenSceneGraph
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This commit is contained in:
Don BURNS
2003-06-24 15:40:09 +00:00
parent 5a939f5420
commit 15f88f35b2
91 changed files with 2871 additions and 1937 deletions
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32
examples/osgtexturerectangle/osgtexturerectangle.cpp
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@@ -20,9 +20,9 @@
#include <osg/Geometry>
#include <osg/Geode>
#include <osg/Group>
#include <osg/Projection>
#include <osg/MatrixTransform>
#include <osgText/Text>
#include <osgDB/Registry>
@@ -137,18 +137,14 @@ osg::Node* createRectangle(osg::BoundingBox& bb,
// disable display list so our modified tex coordinates show up
geom->setUseDisplayList(false);
osg::Geode* geode = new osg::Geode;
geode->addDrawable(geom);
// setup texture
osg::TextureRectangle* texture = new osg::TextureRectangle;
texture->setWrap(osg::Texture::WRAP_S, osg::Texture::CLAMP);
texture->setWrap(osg::Texture::WRAP_T, osg::Texture::CLAMP);
// load image
osg::Image* img = osgDB::readImageFile(filename);
texture->setImage(img);
// setup state
osg::StateSet* state = geom->getOrCreateStateSet();
state->setTextureAttributeAndModes(0, texture, osg::StateAttribute::ON);
@@ -156,6 +152,8 @@ osg::Node* createRectangle(osg::BoundingBox& bb,
state->setMode(GL_LIGHTING, osg::StateAttribute::OFF);
// install 'update' callback
osg::Geode* geode = new osg::Geode;
geode->addDrawable(geom);
geode->setUpdateCallback(new TexturePanCallback(geom, img));
return geode;
@@ -190,17 +188,17 @@ osg::Node* createHUD()
state->setMode(GL_DEPTH_TEST, osg::StateAttribute::OFF);
// add text
osg::Vec3 pos(150.0f, 800.0f, 0.0f);
osg::Vec3 pos(120.0f, 800.0f, 0.0f);
const osg::Vec3 delta(0.0f, -80.0f, 0.0f);
const char* text[] = {
"TextureRectangle Mini-HOWTO",
"- essentially behaves like Texture2D, *except* that:",
"- tex coords must be non-normalized (0..width) instead of (0..1)",
"- wrap mode must be CLAMP, CLAMP_TO_EDGE, or CLAMP_TO_BORDER",
"- repeating wrap modes are *not* supported",
"- texture border is *not* supported",
"- texture mipmaps are *not* supported",
"- tex coords must be non-normalized (0..pixel) instead of (0..1)",
"- wrap modes must be CLAMP, CLAMP_TO_EDGE, or CLAMP_TO_BORDER\n repeating wrap modes are not supported",
"- filter modes must be NEAREST or LINEAR since\n mipmaps are not supported",
"- texture borders are not supported",
"- defaults should be fine",
NULL
};
const char** t = text;
@@ -226,9 +224,11 @@ osg::Node* createHUD()
osg::Node* createModel(const std::string& filename)
{
osg::Group* root = new osg::Group;
osg::BoundingBox bb(0.0f,0.0f,0.0f,1.0f,1.0f,1.0f);
root->addChild(createRectangle(bb, filename)); // XXX
if (filename != "X") {
osg::BoundingBox bb(0.0f,0.0f,0.0f,1.0f,1.0f,1.0f);
root->addChild(createRectangle(bb, filename)); // XXX
}
root->addChild(createHUD());