void Canvas::clip(const glm::mat4& transform, VertexArrayPtr pVA, GLenum stencilOp)
{
// Disable drawing to color buffer
glColorMask(0, 0, 0, 0);
// Enable drawing to stencil buffer
glStencilMask(~0);
// Draw clip rectangle into stencil buffer
glStencilFunc(GL_ALWAYS, 0, 0);
glStencilOp(stencilOp, stencilOp, stencilOp);
StandardShaderPtr pShader = GLContext::getCurrent()->getStandardShader();
pShader->setUntextured();
pShader->activate();
glLoadMatrixf(glm::value_ptr(transform));
pVA->draw();
// Set stencil test to only let
glStencilFunc(GL_LEQUAL, m_ClipLevel, ~0);
glStencilOp(GL_KEEP, GL_KEEP, GL_KEEP);
// Disable drawing to stencil buffer
glStencilMask(0);
// Enable drawing to color buffer
glColorMask(~0, ~0, ~0, ~0);
}
void Canvas::clip(const glm::mat4& transform, SubVertexArray& va, GLenum stencilOp)
{
// Disable drawing to color buffer
glColorMask(0, 0, 0, 0);
// Enable drawing to stencil buffer
glStencilMask(~0);
// Draw clip rectangle into stencil buffer
glStencilFunc(GL_ALWAYS, 0, 0);
glStencilOp(stencilOp, stencilOp, stencilOp);
StandardShaderPtr pShader = GLContext::getMain()->getStandardShader();
pShader->setUntextured();
pShader->setTransform(transform);
pShader->activate();
va.draw();
// Set stencil test to only let
glStencilFunc(GL_LEQUAL, m_ClipLevel, ~0);
glStencilOp(GL_KEEP, GL_KEEP, GL_KEEP);
// Disable drawing to stencil buffer
glStencilMask(0);
// Enable drawing to color buffer
glColorMask(~0, ~0, ~0, ~0);
}
void Shape::draw(const glm::mat4& transform, float opacity)
{
bool bIsTextured = isTextured();
GLContext* pContext = GLContext::getCurrent();
StandardShaderPtr pShader = pContext->getStandardShader();
pShader->setTransform(transform);
pShader->setAlpha(opacity);
if (bIsTextured) {
m_pSurface->activate();
} else {
pShader->setUntextured();
pShader->activate();
}
m_SubVA.draw();
}
void Canvas::renderOutlines(const glm::mat4& transform)
{
GLContext* pContext = GLContext::getMain();
VertexArrayPtr pVA(new VertexArray);
pContext->setBlendMode(GLContext::BLEND_BLEND, false);
m_pRootNode->renderOutlines(pVA, Pixel32(0,0,0,0));
StandardShaderPtr pShader = pContext->getStandardShader();
pShader->setTransform(transform);
pShader->setUntextured();
pShader->setAlpha(0.5f);
pShader->activate();
if (pVA->getNumVerts() != 0) {
pVA->update();
pVA->draw();
}
}
void Canvas::renderOutlines()
{
GLContext* pContext = GLContext::getCurrent();
VertexArrayPtr pVA(new VertexArray);
pContext->setBlendMode(GLContext::BLEND_BLEND, false);
glMatrixMode(GL_MODELVIEW);
glLoadMatrixf(glm::value_ptr(glm::mat4(1.0)));
m_pRootNode->renderOutlines(pVA, Pixel32(0,0,0,0));
StandardShaderPtr pShader = GLContext::getCurrent()->getStandardShader();
pShader->setUntextured();
pShader->activate();
if (pVA->getCurVert() != 0) {
pVA->update();
pContext->enableGLColorArray(true);
pVA->draw();
}
}