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0024402: TKOpenGl - Implement clipping planes in Phong GLSL program

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Limit number of lights (breaks compatibility with old hardware).
This commit is contained in:
duv
2014-02-13 13:06:51 +04:00
committed by apn
parent 816d03eef3
commit 5495fa7e65
6 changed files with 45 additions and 13 deletions
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15
src/OpenGl/OpenGl_ShaderManager.cxx
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@@ -509,7 +509,7 @@ void OpenGl_ShaderManager::PushClippingState (const Handle(OpenGl_ShaderProgram)
return;
}
GLuint aPlanesNb = 0;
GLint aPlanesNb = 0;
for (Graphic3d_SequenceOfHClipPlane::Iterator anIter (myContext->Clipping().Planes());
anIter.More(); anIter.Next())
{
@@ -526,8 +526,9 @@ void OpenGl_ShaderManager::PushClippingState (const Handle(OpenGl_ShaderProgram)
return;
}
OpenGl_Vec4* anEquations = new OpenGl_Vec4[aPlanesNb];
GLint* aSpaces = new GLint [aPlanesNb];
const Standard_Size MAX_CLIP_PLANES = 8;
OpenGl_Vec4* anEquations = new OpenGl_Vec4[MAX_CLIP_PLANES];
GLint* aSpaces = new GLint [MAX_CLIP_PLANES];
GLuint aPlaneId = 0;
for (Graphic3d_SequenceOfHClipPlane::Iterator anIter (myContext->Clipping().Planes());
anIter.More(); anIter.Next())
@@ -546,8 +547,12 @@ void OpenGl_ShaderManager::PushClippingState (const Handle(OpenGl_ShaderProgram)
aSpaces[aPlaneId] = myContext->Clipping().GetEquationSpace (aPlane);
++aPlaneId;
}
theProgram->SetUniform (myContext, aLocEquations, aPlanesNb, anEquations[0].GetData());
theProgram->SetUniform (myContext, aLocSpaces, aPlanesNb, aSpaces);
theProgram->SetUniform (myContext,
theProgram->GetStateLocation (OpenGl_OCC_CLIP_PLANE_COUNT),
aPlanesNb);
theProgram->SetUniform (myContext, aLocEquations, MAX_CLIP_PLANES, anEquations);
theProgram->SetUniform (myContext, aLocSpaces, MAX_CLIP_PLANES, aSpaces);
delete[] anEquations;
delete[] aSpaces;