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Shadow Volumes⇨ Proposed by Frank Crow in 1977 Add new geometry to the scene that describes thevolume occluded from the light source Objects within the volume are in shadow, objects notwithin the volume are not Sometimes called Crow shadows or Crow shadowvolumes© Copyright Ian D. Romanick 2009, 2011 9-February-2011
Shadow Volumes⇨ Proposed by Frank Crow in 1977 Add new geometry to the scene that describes thevolume occluded from the light source Objects within the volume are in shadow, objects notwithin the volume are not Sometimes called Crow shadows or Crow shadowvolumes⇨ In 1991, Tim Heidmann showed how the stencilbuffer can be used to apply these volumes to ascene This adaptation often called stencil volume shadows© Copyright Ian D. Romanick 2009, 2011 9-February-2011
Page 4 and 5: Stencil BufferglStencilFuncSeparate
Page 10 and 11: Stencil Operation⇨ Stencil buffer
Page 12 and 13: Stencil BufferglStencilOpSeparate(G
Page 18 and 19: Stencil Buffer⇨ Stencil buffer ca
Page 20 and 21: Stencil Buffer - ExampleglClearSten
Page 22 and 23: Stencil Buffer - FBOs⇨ Stencil bu
Page 24 and 25: Stencil Buffer - FBO ExampleglGenFr
Page 28 and 29: Shadow Volumes⇨ Basic algorithm:1
Page 30 and 31: Shadow Volumes⇨ Problems? Very
Page 32 and 33: Shadow Volumes⇨ Problems? Very
Page 34 and 35: Shadow Volumes - Z-Pass1. Disable d
Page 36 and 37: Shadow Volumes - Z-Pass⇨ Big prob
Page 38 and 39: Shadow Volumes - Z-Pass⇨ Big prob
Page 40 and 41: Shadow Volumes - Z-Fail1. Disable d
Page 42 and 43: Shadow Volumes - Z-Fail⇨ Big prob
Page 44 and 45: Shadow Volumes⇨ Front and back ca
Page 46 and 47: Shadow Volumes⇨ Advantages? Sha
Page 48 and 49: Shadow Volume Geometry⇨ Generatin
Page 50 and 51: Winged-Edge Mesh⇨ The original me
Page 52 and 53: Winged-Edge Mesh⇨ Desirable mesh
Page 54 and 55: Half-Edge Mesh⇨ Slight modificati
Page 56 and 57: Half-Edge Meshstruct half_edge {//
Page 58 and 59: Half-Edge Mesh⇨ If each HE only s
Page 60 and 61: Half-Edge Mesh⇨ Given a vertex st
Page 62 and 63: Half-Edge Meshe>siblingf 0f 1v©
Page 64 and 65: Half-Edge Mesh⇨ What's the proble
Page 66 and 67: Half-Edge Mesh⇨ How can we add ne
Page 68 and 69: Half-Edge Mesh⇨ To make the HE wo
Page 70 and 71: Half-Edge Mesh⇨ Edges can be adde
Page 76 and 77:
Half-Edge Mesh⇨ Relink the edges
Page 78 and 79:
Page 80 and 81:
Page 82 and 83:
ReferencesMatt Pharr and Ken Schoem
Page 84 and 85:
Shadow Volume Geometry⇨ Once we h
Page 86 and 87:
Fixing Object Geometry⇨ What abou
Page 88 and 89:
Fixing Object Geometry⇨ What abou
Page 90:
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