FGFS-4.1/OpenSceneGraph
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Improvements from Pavel.

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This commit is contained in:
Robert Osfield
2004-01-11 21:33:43 +00:00
parent d072e1087c
commit c51c2893ce
1 changed files with 18 additions and 20 deletions
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38
examples/osgdepthshadow/osgdepthshadow.cpp
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@@ -14,14 +14,15 @@
#include <osg/LightSource>
#include <osg/PolygonOffset>
#include <osg/CullFace>
#include <osg/Material>
#include <osgUtil/TransformCallback>
#include <osgUtil/RenderToTextureStage>
using namespace osg;
const int depth_texture_height = 256;
const int depth_texture_width = 256;
const int depth_texture_height = 512;
const int depth_texture_width = 512;
ref_ptr<RefMatrix> bias = new RefMatrix(0.5f, 0.0f, 0.0f, 0.0f,
0.0f, 0.5f, 0.0f, 0.0f,
@@ -109,13 +110,13 @@ public:
_local_stateset->setMode(GL_LIGHTING, osg::StateAttribute::OFF);
ref_ptr<PolygonOffset> polygon_offset = new PolygonOffset;
polygon_offset->setFactor(2.0f);
polygon_offset->setUnits(6.0f);
polygon_offset->setFactor(1.1f);
polygon_offset->setUnits(4.0f);
_local_stateset->setAttribute(polygon_offset.get(), StateAttribute::ON | StateAttribute::OVERRIDE);
_local_stateset->setMode(GL_POLYGON_OFFSET_FILL, StateAttribute::ON | StateAttribute::OVERRIDE);
ref_ptr<CullFace> cull_face = new CullFace;
cull_face->setMode(CullFace::BACK);
cull_face->setMode(CullFace::FRONT);
_local_stateset->setAttribute(cull_face.get(), StateAttribute::ON | StateAttribute::OVERRIDE);
_local_stateset->setMode(GL_CULL_FACE, StateAttribute::ON | StateAttribute::OVERRIDE);
@@ -243,10 +244,10 @@ ref_ptr<MatrixTransform> _create_lights(ref_ptr<StateSet> root_stateset)
ref_ptr<Light> light_0 = new Light;
light_0->setLightNum(0);
light_0->setPosition(Vec4(0, 0, 0, 1.0f));
light_0->setAmbient(Vec4(0.2f, 0.2f, 0.2f, 1.0f));
light_0->setDiffuse(Vec4(1.0f, 0.5f, 0.5f, 1.0f));
light_0->setAmbient(Vec4(0.0f, 0.0f, 0.0f, 1.0f));
light_0->setDiffuse(Vec4(1.0f, 0.8f, 0.8f, 1.0f));
light_0->setSpotCutoff(60.0f);
light_0->setSpotExponent(5.0f);
light_0->setSpotExponent(2.0f);
ref_ptr<LightSource> light_source_0 = new LightSource;
light_source_0->setLight(light_0.get());
@@ -301,7 +302,7 @@ ref_ptr<Group> _create_scene()
geode_1->addDrawable(shape.get());
shape = new ShapeDrawable(new Sphere(Vec3(0.0f, 0.0f, 0.0f), radius * 2), hints.get());
shape->setColor(Vec4(0.8f, 0.4f, 0.4f, 1.0f));
shape->setColor(Vec4(0.8f, 0.8f, 0.8f, 1.0f));
geode_1->addDrawable(shape.get());
shape = new ShapeDrawable(new Sphere(Vec3(-3.0f, 0.0f, 0.0f), radius), hints.get());
@@ -324,6 +325,14 @@ ref_ptr<Group> _create_scene()
shape->setColor(Vec4(0.8f, 0.8f, 0.4f, 1.0f));
geode_3->addDrawable(shape.get());
// material
ref_ptr<Material> matirial = new Material;
matirial->setColorMode(Material::DIFFUSE);
matirial->setAmbient(Material::FRONT_AND_BACK, Vec4(0, 0, 0, 1));
matirial->setSpecular(Material::FRONT_AND_BACK, Vec4(1, 1, 1, 1));
matirial->setShininess(Material::FRONT_AND_BACK, 64.0f);
scene->getOrCreateStateSet()->setAttributeAndModes(matirial.get(), StateAttribute::ON);
return scene;
}
@@ -377,21 +386,10 @@ int main(int argc, char** argv)
texture->setShadowComparison(true);
texture->setShadowTextureMode(Texture::LUMINANCE);
ref_ptr<TexEnvCombine> tex_env_combine = new TexEnvCombine;
tex_env_combine->setCombine_RGB(TexEnvCombine::INTERPOLATE);
tex_env_combine->setSource0_RGB(TexEnvCombine::PREVIOUS);
tex_env_combine->setOperand0_RGB(TexEnvCombine::SRC_COLOR);
tex_env_combine->setSource1_RGB(TexEnvCombine::TEXTURE);
tex_env_combine->setOperand1_RGB(TexEnvCombine::SRC_COLOR);
tex_env_combine->setSource2_RGB(TexEnvCombine::CONSTANT);
tex_env_combine->setOperand2_RGB(TexEnvCombine::SRC_COLOR);
tex_env_combine->setConstantColor(Vec4(0.8f, 0.8f, 0.8f, 1.0f));
ref_ptr<TexGen> tex_gen = new TexGen;
tex_gen->setMode(TexGen::EYE_LINEAR);
shadowed_scene->getOrCreateStateSet()->setTextureAttributeAndModes(0, texture.get(), StateAttribute::ON);
shadowed_scene->getOrCreateStateSet()->setTextureAttributeAndModes(0, tex_gen.get(), StateAttribute::ON);
shadowed_scene->getOrCreateStateSet()->setTextureAttributeAndModes(0, tex_env_combine.get(), StateAttribute::ON);
scene->setCullCallback(new RenderToTextureCallback(shadowed_scene.get(), texture.get(), light_transform.get(), tex_gen.get()));