void DrawContext::DrawDrawNode(DrawNode* draw_node) {
for (const Drawable::Ptr& drawable : draw_node->Drawables()) {
geometry_ = drawable->Geometry();
material_ = drawable->Material();
shader_ = material_->Shader();
// Activate the shader program
if (!shader_) {
continue;
}
program_ = shader_->Program();
if (!program_) {
continue;
}
ActivateMaterial();
if (drawable->PreDraw()) {
DrawGeometry();
}
drawable->PostDraw();
GLenum gl_err = glGetError();
if (gl_err != GL_NO_ERROR) {
printf("OpenGL: %s\n", sv::glErrorString(gl_err));
}
// Done. Release resources
program_->release();
glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
}
}
void RAS_MaterialBucket::RenderMeshSlots(const MT_Transform& cameratrans, RAS_IRasterizer *rasty)
{
if (GetNumActiveMeshSlots() == 0) {
return;
}
bool matactivated = ActivateMaterial(rasty);
for (RAS_DisplayArrayBucketList::iterator it = m_displayArrayBucketList.begin(), end = m_displayArrayBucketList.end();
it != end; ++it)
{
RAS_DisplayArrayBucket *displayArrayBucket = *it;
if (!matactivated) {
displayArrayBucket->RemoveActiveMeshSlots();
continue;
}
// Choose the rendering mode : geometry instancing render / regular render.
if (UseInstancing()) {
displayArrayBucket->RenderMeshSlotsInstancing(cameratrans, rasty, IsAlpha());
}
else {
displayArrayBucket->RenderMeshSlots(cameratrans, rasty);
}
displayArrayBucket->RemoveActiveMeshSlots();
}
if (matactivated) {
DesactivateMaterial(rasty);
}
}
void NvModelExtGL::DrawElements(uint32_t instanceCount, GLint positionHandle, GLint normalHandle, GLint texcoordHandle, GLint tangentHandle)
{
uint32_t numMeshes = GetMeshCount();
for (uint32_t meshIndex = 0; meshIndex < numMeshes; ++meshIndex)
{
Nv::NvMeshExtGL* pMesh = GetMesh(meshIndex);
uint32_t matId = pMesh->GetMaterialID();
ActivateMaterial(matId);
pMesh->DrawElements(instanceCount, positionHandle, normalHandle, texcoordHandle, tangentHandle);
}
}
GLMaterial::GLMaterial(void)
{
face_ = GL_FRONT;
GLColor ambient, diffuse, specular;
ActivateMaterial( ambient, diffuse, specular );
}
GLMaterial::GLMaterial( GLenum face, GLColor ambient, GLColor diffuse, GLColor specular, GLfloat shininess )
{
face_ = face;
ActivateMaterial( ambient, diffuse, specular, shininess );
}
GLMaterial::GLMaterial( GLfloat* ambient, GLfloat* diffuse, GLfloat* specular, GLfloat shininess )
{
face_ = GL_FRONT;
ActivateMaterial( ambient, diffuse, specular, shininess );
}
GLMaterial::GLMaterial( GLenum face )
{
face_ = face;
GLColor ambient, diffuse, specular;
ActivateMaterial( ambient, diffuse, specular );
}