coin220(3) Coin coin220(3)NAME
coin220 - New Features in Coin v2.2.0
Multi-Texturing
New nodes:
o SoTextureUnit
Bump-Mapping
New nodes:
o SoBumpMap
o SoBumpMapCoordinate
o SoBumpMapTransform
Better Font Support
TrueType font support for all 3D text primitive types.
Render To Texture Support
New nodes:
o SoSceneTexture2
Misc
REPLACE texture model support for SoTexture2
pbuffer support for SoOffscreenRenderer
New transparency rendering type, SORTED_LAYERS_BLEND
New features for Coin v2.1.0 are here.
Version 3.1.3 Wed May 23 2012 coin220(3)
Check Out this Related Man Page
vbo_rendering(3) Coin vbo_rendering(3)NAME
vbo_rendering - Vertex array and VBO rendering in Coin Coin 2.5 added improved support for OpenGL vertex array and VBO rendering. This
might lead to major rendering performance improvements compared to the old rendering code. The new rendering code has been added for the
SoIndexedFaceSet, SoVRMLIndexedFaceSet, SoIndexedLineSet, SoVRMLIndexedLineSet, SoPointSet and SoVRMLPointSet nodes.
To take advantage of the improved performance vertex array and VBO rendering yields, you'll need to organize your vertex data in a way that
makes it possible to render it with OpenGL vertex arrays. OpenGL vertex array rendering does not support multiple index arrays, so all your
vertex data (coordinates, normals, colors and texture coordinates) must use the same index array; or use OVERALL binding. For the indexed
nodes, this means that PER_VERTEX_INDEXED and OVERALL are the only supported bindings for materials, normals and texture coordinates. When
PER_VERTEX_INDEXED binding is used, the corresponding index field should by empty. This will signal the shape to use the coordIndex field
for indices. Below is an example scene graph that will be rendered using vertex arrays:
NormalBinding { value PER_VERTEX_INDEXED }
Coordinate3 {
point [
0 0 0, # 0
1 0 0, # 1
2 0 0, # 2
0 1 0, # 3
1 1 0, # 4
2 1 0, # 5
0 2 0, # 6
1 2 0, # 7
2 2 0, # 8
2 0 0, # 9
2 0 -1, # 10
2 1 0, # 11
2 1 -1, # 12
2 2 0, # 13
2 2 -1 # 14
]
}
Normal {
vector [
0 0 1, # 0
0 0 1, # 1
0 0 1, # 2
0 0 1, # 3
0 0 1, # 4
0 0 1, # 5
0 0 1, # 6
0 0 1, # 7
0 0 1, # 8
1 0 0, # 9
1 0 0, # 10
1 0 0, # 11
1 0 0, # 12
1 0 0, # 13
1 0 0 # 14
]
}
IndexedFaceSet {
coordIndex [
0, 1, 4, 3, -1,
1, 2, 5, 4, -1,
3, 4, 7, 6, -1,
4, 5, 8, 7, -1,
9, 10, 12, 11, -1,
11, 12, 14, 13, -1
]
normalIndex [ ] # = use coordIndex
}.fi
Please note that since only one index array can be used, it might be necessary to supply duplicate normals and coordinates to meet this requirement.
Also, if normals are needed, you have to supply them. A shape with autogenerated normals can't be rendered using vertex arrays (since a single coordinate might get multiple normals).
The PointSet nodes can always be rendered using vertex arrays since these nodes haven't got index arrays, and the only bindings supported are PER_VERTEX and OVERALL.
If it's inconvenient to create vertex array ready scene graphs directly from your application, it's also possible to use SoReorganizeAction to reorganize the geometry before rendering.
Version 3.1.3 Wed May 23 2012 vbo_rendering(3)
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