Hi,
I'm one of the www.opensg.org developer and try to get the shadow-
mapping code running on my 15'' macbook Pro
The system utilizes some vertex-shader-code for the shadow-map
generator which looks like this:
//--------------------------------------------------------------------
-------------------------------------------------
uniform float texFactor;
varying vec4 projCoord;
varying vec4 texPos;
const mat4 bias = mat4
(0.5,0.0,0.0,0.0,0.0,0.5,0.0,0.0,0.0,0.0,0.5,0.0,0.5,0.5,0.5,1.0);
void main(void)
{
vec4 realPos = gl_ModelViewMatrix * gl_Vertex;
projCoord = lightPM * realPos;
projCoord.x *= texFactor;
texPos = gl_ModelViewProjectionMatrix * gl_Vertex;
projCoord = bias * projCoord;
texPos = bias * texPos;
gl_Position = ftransform();
}
//--------------------------------------------------------------------
-------------------------------------------------
This shader-code works on Linux and windows with nvidia and ati
boards but crashes my mac.
Now the funny part: If i remove the 'const' in front of the mat4
everything works really slow but
at least it works.
AFAIK is this the right way to initialize a const mat4?
Is this a bug or feature?
best regarts,
Johannes
//--------------------------------------------------------------------
-------------------------------------------------------------
The Problem and system information:
Date/Time: 2007-02-19 19:45:21.050 +0100
OS Version: 10.4.8 (Build 8L2127)
Report Version: 4
Command: bin
Path: /bin:/sw/sbin:/bin:/sbin:/usr/bin:/usr/sbin:/usr/X11R6/
bin:/bin:/usr/bin:/usr/local/bin:/opt/bmrt/bin:/opt/flow/bin:/Users/
jbehr/src/OpenSG/Builds/i386-apple-darwin-g++/bin:/Users/jbehr/src/
OpenSG/Builds/i386-apple-darwin-g++/SystemTest:/Users/jbehr/src/
OpenSG/Builds/i386-apple-darwin-g++/ContribTest:/opt/teem/bin:/
Users/jbehr/src/Avalon/opt/talic/dist/bin
Parent: tcsh [27721]
Version: ??? (???)
PID: 11998
Thread: 0
Exception: EXC_BAD_ACCESS (0x0001)
Codes: KERN_INVALID_ADDRESS (0x0001) at 0xc0000000
Thread 0 Crashed:
0 libGLProgrammability.dylib 0x96fd4f15
TPPStreamCompiler::getNewConstantSourceVar(constData*, unsigned,
unsigned short) + 399
...
Model: MacBookPro1,1, BootROM MBP11.0055.B08, 2 processors, Intel
Core Duo, 2.16 GHz, 1 GB
Graphics: ATI Radeon X1600, ATY,RadeonX1600, PCIe, 256 MB
Memory Module: BANK 1/DIMM1, 1 GB, DDR2 SDRAM, 667 MHz
AirPort: spairport_wireless_card_type_airport_extreme (0x168C,
0x86), 0.1.30
Bluetooth: Version 1.7.9f12, 2 service, 1 devices, 1 incoming
serial ports
Network Service: Built-in Ethernet, Ethernet, en0
Serial ATA Device: ST9100824AS, 93.16 GB
Parallel ATA Device: MATSHITADVD-R UJ-857
USB Device: Built-in iSight, Micron, Up to 480 Mb/sec, 500 mA
USB Device: Kensington PocketMouse Pro, Kensington, Up to 1.5 Mb/
sec, 500 mA
USB Device: Apple Internal Keyboard / Trackpad, Apple Computer, Up
to 12 Mb/sec, 500 mA
USB Device: IR Receiver, Apple Computer, Inc., Up to 12 Mb/sec, 500 mA
USB Device: Bluetooth HCI, Up to 12 Mb/sec, 500 mA
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Mac-opengl mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden
