[Chromium-users] chromium-dmx-stereo

[Daniel C. <dan...@ya...>]

Hello, I have a viz-wall cluster (3x1),  I made this
config file for view active stero in a non-stereo
application with dmx support. When I start all, my
display looks well in only one crserver , but when I
resize it into the anothers crservers, the  whole
display turns very slow, and the animations of the
atlantis demo stop.

Someone know what is happening ?

Regards.
Daniel.

 


# Copyright (c) 2001, Stanford University
# All rights reserved
#
# See the file LICENSE.txt for information on
redistributing this software.

# This configuration file is an example of what would
be used to run
# Chromium on a DMX systems.

import sys
sys.path.append( "../server" )
from mothership import *
import crmatrix

if len(sys.argv) > 1:
	demo = sys.argv[1]
else:
	demo = 'atlantis'

cr = CR()
cr.MTU( 10*1024*1024 )

# Fix these:
TILE_COLS = 3
TILE_ROWS = 1
HOSTS = ['tile-0-0', 'tile-1-0','tile-2-0']


# These values don't really matter!
TILE_WIDTH = 550
TILE_HEIGHT = 550



if demo == "stereocube":
	# Parameters copied from sterecube.c demo
	EyeSep = 0.3
	Width = 12.0
	Hither = 1.0
	Yon = 25.0
	FocalDist = 5.0
elif demo == "city":
	EyeSep = 0.3
	Width = 12.0
	Hither = 1.0
	Yon = 250.0
	FocalDist = 5.0
elif demo == "atlantis":
	# atlantis uses some really big numbers!
	# not a great demo for stereo, either.
	EyeSep = 530.3
	Width = 100000.0
	Hither = 30000.0
	Yon = 400000.0
	zTranslate = 80000.0  # put us in the middle of the
fish
	FocalDist = Hither * 2.0
	demo += " -s 100"
	
elif demo == "paraview":
	# Note: seems to work with "blow.vtk" dataset
	EyeSep = 2.0
	Width = 40.0
	Hither = 120.0
	Yon = 180.0
	FocalDist = 150
else:
	# some default values that seem to work for some Mesa
demos
	EyeSep = 0.3      # half of interocular distance
	Width = 2.0       # frustum width at FocalDist
	Hither = 1.0      # near clip plane distance from eye
	Yon = 250.0       # far clip plane distance from eye
	FocalDist = 4.0   # focal distance for stereo imaging




Aspect = float(TILE_WIDTH) / float(TILE_HEIGHT)



tilesortspu = SPU('tilesort')
tilesortspu.Conf('force_quad_buffering', 1)
tilesortspu.Conf('stereo_mode', 'CrystalEyes')
tilesortspu.Conf('use_dmx', 1)
tilesortspu.Conf('retile_on_resize', 1)  # the default
tilesortspu.Conf('bucket_mode', 'Test All Tiles')
tilesortspu.Conf('draw_bbox', 0)
tilesortspu.Conf('scale_images', 0)




clientnode = CRApplicationNode( )
clientnode.StartDir( crbindir )
clientnode.SetApplication( demo )
clientnode.AddSPU( tilesortspu )
clientnode.Conf('track_window_size', 1)
clientnode.Conf('track_window_position', 1)


Width = 0.5 * Width   # want half width below
s = Hither / FocalDist	
top = s * Width
bottom = -top


for row in range(TILE_ROWS):
	for col in range(TILE_COLS):
		n = row * TILE_COLS + col

		renderspu = SPU( 'render' )
		renderspu.Conf('display_string', HOSTS[n] + ":0")
		renderspu.Conf('render_to_app_window', 1)
		renderspu.Conf( 'window_geometry',
[1.1*col*TILE_WIDTH, 1.1*row*TILE_HEIGHT, TILE_WIDTH,
TILE_HEIGHT] )

		servernode = CRNetworkNode( HOSTS[n] )
		servernode.AddTile( col*TILE_WIDTH,
(TILE_ROWS-row-1)*TILE_HEIGHT, TILE_WIDTH, TILE_HEIGHT
)


		servernode.AddSPU( renderspu )
		# optimize_bucket is of no use w/ DMX.
		servernode.Conf('optimize_bucket', 0)
		servernode.Conf('use_dmx', 1)
		

		for eye in range(2):
		     # View matrix
		     v = crmatrix.CRMatrix()
		     if eye == 0:
			     v.Translate(+EyeSep, 0, 0)
		     else:
			     v.Translate(-EyeSep, 0, 0)
		     #v.Translate(xTranslate, yTranslate,
zTranslate)	     
	
		     # Projection matrix
		     p = crmatrix.CRMatrix(	     if eye == 0:
			     left = s * ((Width * -Aspect) + EyeSep);
			     right = s * ((Width * Aspect) + EyeSep);
		     else:
			     left = s * (Width * -Aspect - EyeSep);
			     right = s * (Width * Aspect - EyeSep);

		     p.Frustum(left, right, bottom, top, Hither,
Yon)

		     if eye == 0:
			     servernode.Conf('view_matrix', v.ToList())
			     servernode.Conf('projection_matrix',
p.ToList())
		     else:
			     servernode.Conf('right_view_matrix',
v.ToList())
			     servernode.Conf('right_projection_matrix',
p.ToList())
		
		     cr.AddNode( servernode )	

		tilesortspu.AddServer( servernode, protocol='tcpip',
port=7000 + n )


cr.AddNode( clientnode )
cr.Go()



       
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