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Forum: Vizard 09-28-2012, 01:47 AM
Replies: 2
Views: 4,324
Posted By stefs
Ok, this seems to work for RGBA textures in...

Ok, this seems to work for RGBA textures in Vizard 4.0
But there are other issues now. I try to read the depth values also. First issue is that .getPixelSize() returns zero (also for RGBA textures)....
Forum: Vizard 09-24-2012, 06:41 AM
Replies: 2
Views: 4,324
Posted By stefs
How to read pixels from a rendered texture?

I want to read the RGB values from specific texels in a textured polygon, where the texture is a rendered texture attached to a render node. For “normal” textures this works fine by reading from the...
Forum: Vizard 10-18-2009, 07:36 AM
Replies: 1
Views: 4,022
Posted By stefs
Per vertex attributes in OTF objects?

Is there a mechanism in Vizard to load user defined per vertex attributes in on-the-fly (layer) objects?

I need color, normal vector and tex-coord already. So I canīt use those to store my...
Forum: Vizard 10-09-2009, 06:36 AM
Replies: 1
Views: 4,282
Posted By stefs
linear transform in 2D screen space

I intend to do some linear transform in 2D window (screen) space in order to do on-the-fly h-/v-keystone correction. I have all the code ready to calculate the linear distortion matrix from four...
Forum: Vizard 04-23-2008, 01:33 AM
Replies: 1
Views: 3,837
Posted By stefs
3D Texture Mapping - gluBuild3DMipmaps not supported

Hi,
I am running into problems when trying the 3D texture mapping functionality in the latest Vizard release. I am drawing a cube using a specific fragment shader which is supposed to do volume...
Forum: Vizard 03-25-2008, 03:34 AM
Replies: 2
Views: 5,444
Posted By stefs
3D Texture Mapping in Vizard?

Thatīs really excellent news!
Yes, the use of color as texture coords works as a temporary hack. I will await the next release of WorldViz and look forward to the possibility of creating 3D textures...
Forum: Vizard 03-20-2008, 02:51 AM
Replies: 2
Views: 5,444
Posted By stefs
3D Texture Mapping in Vizard?

Hello,
has anyone tried 3D texture mapping in Vizard? viz.texCoord() doesnīt complain when handing over three texture coordinates e.g. (1,1,1). Apparently, however, only the first two texture...
Forum: Vizard 03-07-2008, 04:52 AM
Replies: 6
Views: 5,938
Posted By stefs
VizCave problem resolved

Thank you very much for providing this code, which helped me to resolve the problem. Apparently one has to update the current head position i two different places to make this work. BOTH in the cave...
Forum: Vizard 03-05-2008, 11:51 PM
Replies: 6
Views: 5,938
Posted By stefs
Example code for VizCave

The printout of tposition shows the coordinates are in the same system.
I also tried to cave.update(pos=vp), with constant vp as defined along with the corner points. Should give me a slightly...
Forum: Vizard 03-05-2008, 01:53 AM
Replies: 6
Views: 5,938
Posted By stefs
Example code for VizCave

Hi everybody,
I intend to create dynamic off-axis projections on a table-top 3D display and understand that the vizcave object provides all needed functionality for this. Unfortunately I do not get...
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