[Opensg-users] Bug in ShaderProgramChunk and feature request for SimpleSHLChunk

Hi all, I found a bug in the function ShaderProgramChunk::addShader(ShaderProgram * const value). In line 177 of OSGShaderProgramChunk.cpp tessellation evaluation shaders are added to the list of tessellation control shaders: line 176case GL_TESS_EVALUATION_SHADER: line 177t

[Opensg-users] Using custom per-instance Vertex Attributes

Hi all, for instanced rendering I want to give the instanced Geometry core an attribute that represents a per-instance position offset. I know how to set the usual indices and positions, but how do I add custom vertex attributes? I tried setting the property to binding location 1 using geo->se

[Opensg-users] Using per-instance Vertex Attributes

Hi all, for instanced rendering I want to give the instanced Geometry core an attribute that represents a per-instance position offset. I know how to set the usual indices and positions, but how do I add custom vertex attributes? I tried setting the property to binding location 1 using Snippet

Re: [Opensg-users] Using compute shaders in OpenSG

13:44, schrieb Gerrit Voß: > Hello, > > On Sun, 2014-05-04 at 15:33 +0200, Carsten Neumann wrote: >> Hello Marcel, >> >> On 05/04/2014 02:34 PM, Marcel Weiler wrote: >>> I am trying to use compute shaders in OpenSG but can't make them work. >>>

[Opensg-users] Using compute shaders in OpenSG

Hi all, I am trying to use compute shaders in OpenSG but can't make them work. The compute shader should modify the texture of a plane, but it never gets activated. My current setup is as follows: I load the OSGContribComputeBase Library using OSG::preloadSharedObject("OSGContribComputeBase"

[Opensg-users] Bug in OSGShaderProgram.cpp

Hi, I have found a bug in OSGShaderProgram.cpp: If you set a shader source of a (Simple)SHLChunk to an invalid source code, ShaderProgram::handleGL(...) will delete the shader in line Snippet 769 and uiShader will be set to 0. If you then set the shader source to a valid source again, uiShader