//----------------------------------------------------------------------------//
void OpenGL3GeometryBuffer::draw() const
{
CEGUI::Rectf viewPort = d_owner->getActiveViewPort();
d_glStateChanger->scissor(static_cast<GLint>(d_clipRect.left()),
static_cast<GLint>(viewPort.getHeight() - d_clipRect.bottom()),
static_cast<GLint>(d_clipRect.getWidth()),
static_cast<GLint>(d_clipRect.getHeight()));
// apply the transformations we need to use.
if (!d_matrixValid)
updateMatrix();
// Send ModelViewProjection matrix to shader
glm::mat4 modelViewProjectionMatrix = d_owner->getViewProjectionMatrix()->d_matrix * d_matrix->d_matrix;
glUniformMatrix4fv(d_shaderStandardMatrixLoc, 1, GL_FALSE, glm::value_ptr(modelViewProjectionMatrix));
// activate desired blending mode
d_owner->setupRenderingBlendMode(d_blendMode);
// Bind our vao
d_glStateChanger->bindVertexArray(d_verticesVAO);
const int pass_count = d_effect ? d_effect->getPassCount() : 1;
size_t pos = 0;
for (int pass = 0; pass < pass_count; ++pass)
{
// set up RenderEffect
if (d_effect)
d_effect->performPreRenderFunctions(pass);
// draw the batches
BatchList::const_iterator i = d_batches.begin();
for ( ; i != d_batches.end(); ++i)
{
const BatchInfo& currentBatch = *i;
if (currentBatch.clip)
glEnable(GL_SCISSOR_TEST);
else
glDisable(GL_SCISSOR_TEST);
glBindTexture(GL_TEXTURE_2D, currentBatch.texture);
// draw the geometry
const unsigned int numVertices = currentBatch.vertexCount;
glDrawArrays(GL_TRIANGLES, pos, numVertices);
pos += numVertices;
}
}
// clean up RenderEffect
if (d_effect)
d_effect->performPostRenderFunctions();
}
//----------------------------------------------------------------------------//
void OpenGL3GeometryBuffer::draw() const
{
if(d_vertexData.empty())
return;
CEGUI::Rectf viewPort = d_owner.getActiveViewPort();
if (d_clippingActive)
{
d_glStateChanger->scissor(static_cast<GLint>(d_clipRect.left()),
static_cast<GLint>(viewPort.getHeight() - d_clipRect.bottom()),
static_cast<GLint>(d_clipRect.getWidth()),
static_cast<GLint>(d_clipRect.getHeight()));
d_glStateChanger->enable(GL_SCISSOR_TEST);
}
else
d_glStateChanger->disable(GL_SCISSOR_TEST);
// Update the model view projection matrix
updateMatrix();
CEGUI::ShaderParameterBindings* shaderParameterBindings = (*d_renderMaterial).getShaderParamBindings();
// Set the uniform variables for this GeometryBuffer in the Shader
shaderParameterBindings->setParameter("modelViewProjMatrix", d_matrix);
shaderParameterBindings->setParameter("alphaPercentage", d_alpha);
// activate desired blending mode
d_owner.setupRenderingBlendMode(d_blendMode);
if (OpenGLInfo::getSingleton().isVaoSupported())
{
// Bind our vao
d_glStateChanger->bindVertexArray(d_verticesVAO);
}
else
{
// This binds and sets up a vbo for rendering
finaliseVertexAttributes();
}
const int pass_count = d_effect ? d_effect->getPassCount() : 1;
for (int pass = 0; pass < pass_count; ++pass)
{
// set up RenderEffect
if (d_effect)
d_effect->performPreRenderFunctions(pass);
d_renderMaterial->prepareForRendering();
// draw the geometry
drawDependingOnFillRule();
}
// clean up RenderEffect
if (d_effect)
d_effect->performPostRenderFunctions();
updateRenderTargetData(d_owner.getActiveRenderTarget());
}