add normal to VertexData

2017-01-08 14:41:53 +01:00
parent 5c2f5503fc
commit 948578f506
4 changed files with 34 additions and 11 deletions
--- a/QtMeshViewer/Source/GeometryEngine.cpp
+++ b/QtMeshViewer/Source/GeometryEngine.cpp
@@ -196,6 +196,14 @@ void GeometryEngine::drawGeometry(QOpenGLShaderProgram *program)
 	program->enableAttributeArray(texcoordLocation);
 	program->setAttributeBuffer(texcoordLocation, GL_FLOAT, offset, 2, sizeof(VertexData));

+	//Offset for normal
+	offset += sizeof(QVector2D);
+
+	// Tell OpenGL programmable pipeline how to locate vertex normal data
+	int normLocation = program->attributeLocation("a_normal");
+	program->enableAttributeArray(normLocation);
+	program->setAttributeBuffer(normLocation, GL_FLOAT, offset, 3, sizeof(VertexData));
+
 // Paint

 	for (auto& it : m_drawList)