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0024192: Adding support for shaders to OCCT visualization toolkit

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This commit is contained in:
apl
2013-10-21 11:47:10 +04:00
committed by abv
parent 30bf45dc70
commit 30f0ad2866
66 changed files with 6117 additions and 404 deletions
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64
src/ViewerTest/ViewerTest.cxx
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@@ -56,6 +56,8 @@
#include <Graphic3d_AspectFillArea3d.hxx>
#include <Graphic3d_TextureRoot.hxx>
#include <Graphic3d_AspectLine3d.hxx>
#include <Graphic3d_ShaderObject.hxx>
#include <Graphic3d_ShaderProgram.hxx>
#include <Image_AlienPixMap.hxx>
#include <Prs3d_ShadingAspect.hxx>
#include <Prs3d_IsoAspect.hxx>
@@ -1897,6 +1899,64 @@ Standard_Integer VTexture (Draw_Interpretor& di,Standard_Integer argc, const cha
return 0;
}
//==============================================================================
//function : VShaderProg
//purpose : Sets the pair of vertex and fragment shaders for the object
//==============================================================================
static Standard_Integer VShaderProg (Draw_Interpretor& /*theDI*/,
Standard_Integer theArgNb,
const char** theArgVec)
{
Handle(AIS_InteractiveContext) anAISContext = ViewerTest::GetAISContext();
if (anAISContext.IsNull())
{
std::cerr << "Use 'vinit' command before " << theArgVec[0] << "\n";
return 1;
}
if (theArgNb < 3)
{
std::cerr << theArgVec[0] <<" syntax error: lack of arguments - Type 'help vshaderprog\n";
return 1;
}
const TCollection_AsciiString aShapeName = theArgVec[1];
if (!GetMapOfAIS().IsBound2 (aShapeName))
{
std::cerr << theArgVec[0] << ": Use 'vdisplay' before\n";
return 1;
}
Handle(AIS_InteractiveObject) anIO = Handle(AIS_InteractiveObject)::DownCast (GetMapOfAIS().Find2 (aShapeName));
if (anIO.IsNull())
{
std::cerr << "Shape " << aShapeName.ToCString() << " does not exist\n";
return 1;
}
Handle(Graphic3d_ShaderProgram) aProgram = new Graphic3d_ShaderProgram();
const TCollection_AsciiString aVertexSource (theArgVec[2]);
if (!aVertexSource.IsEmpty() && !OSD_File(aVertexSource).Exists())
{
std::cerr << "Non-existing vertex shader source\n";
return 1;
}
TCollection_AsciiString aFragmentSource (theArgVec[3]);
if (!aFragmentSource.IsEmpty() && !OSD_File(aFragmentSource).Exists())
{
std::cerr << "Non-existing fragment shader source\n";
return 1;
}
aProgram->AttachShader (Graphic3d_ShaderObject::CreateFromFile (Graphic3d_TOS_VERTEX, aVertexSource));
aProgram->AttachShader (Graphic3d_ShaderObject::CreateFromFile (Graphic3d_TOS_FRAGMENT, aFragmentSource));
anIO->Attributes()->ShadingAspect()->Aspect()->SetShaderProgram (aProgram);
anAISContext->Redisplay (anIO);
return 0;
}
//==============================================================================
//function : VDisplay2
//author : ege
@@ -3281,6 +3341,10 @@ void ViewerTest::Commands(Draw_Interpretor& theCommands)
or 'vtexture NameOfShape IdOfTexture' (0<=IdOfTexture<=20)' to use predefined textures\n ",
__FILE__,VTexture,group);
theCommands.Add("vshaderprog",
"'vshaderprog NameOfShape VertexShaderFile FragmentShaderFile'",
__FILE__,VShaderProg,group);
theCommands.Add("vtexscale",
"'vtexscale NameOfShape ScaleU ScaleV' \n \
or 'vtexscale NameOfShape ScaleUV' \n \