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use single-precision floats in bunny vertex buffers for much better performance

db4
Joe Groff 2008-07-11 19:34:42 -07:00
parent 109f7685c0
commit b19c3ee65e
1 changed files with 5 additions and 5 deletions
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10
extra/bunny/model/model.factor
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@ -2,7 +2,7 @@ USING: alien alien.c-types arrays sequences math math.vectors
math.matrices math.parser io io.files kernel opengl opengl.gl
opengl.glu io.encodings.ascii opengl.capabilities shuffle
http.client vectors splitting system combinators
float-arrays continuations destructors namespaces sequences.lib
continuations destructors namespaces sequences.lib
accessors ;
IN: bunny.model
@ -66,7 +66,7 @@ TUPLE: bunny-buffers array element-array nv ni ;
{
[
[ first concat ] [ second concat ] bi
append >c-double-array
append >c-float-array
GL_ARRAY_BUFFER swap GL_STATIC_DRAW <gl-buffer>
]
[
@ -86,10 +86,10 @@ M: bunny-dlist bunny-geom
M: bunny-buffers bunny-geom
dup { array>> element-array>> } get-slots [
{ GL_VERTEX_ARRAY GL_NORMAL_ARRAY } [
GL_DOUBLE 0 0 buffer-offset glNormalPointer
GL_FLOAT 0 0 buffer-offset glNormalPointer
[
nv>> "double" heap-size * buffer-offset
3 GL_DOUBLE 0 roll glVertexPointer
nv>> "float" heap-size * buffer-offset
3 GL_FLOAT 0 roll glVertexPointer
] [
ni>>
GL_TRIANGLES swap GL_UNSIGNED_INT 0 buffer-offset glDrawElements