bool
OpenSubdivShaderOverride::draw(MHWRender::MDrawContext &context, const MHWRender::MRenderItemList &renderItemList) const
{
using namespace MHWRender;
{
MHWRender::MStateManager *stateMgr = context.getStateManager();
static const MDepthStencilState * depthState = NULL;
if (!depthState) {
MDepthStencilStateDesc desc;
depthState = stateMgr->acquireDepthStencilState(desc);
}
static const MBlendState *blendState = NULL;
if (!blendState) {
MBlendStateDesc desc;
for(int i = 0; i < (desc.independentBlendEnable ? MHWRender::MBlendState::kMaxTargets : 1); ++i)
{
desc.targetBlends[i].blendEnable = false;
}
blendState = stateMgr->acquireBlendState(desc);
}
stateMgr->setDepthStencilState(depthState);
stateMgr->setBlendState(blendState);
}
for(int i=0; i< renderItemList.length(); i++){
const MHWRender::MRenderItem *renderItem = renderItemList.itemAt(i);
OsdMeshData *data = (OsdMeshData*)(renderItem->customData());
if (data == NULL) {
return false;
}
data->populateIfNeeded(_shader->getLevel(), _shader->getScheme(), _shader->getKernel());
const MHWRender::MVertexBuffer *position = NULL, *normal = NULL;
{
const MHWRender::MGeometry *geometry = renderItem->geometry();
for(int i = 0; i < geometry->vertexBufferCount(); i++){
const MHWRender::MVertexBuffer *vb = geometry->vertexBuffer(i);
const MHWRender::MVertexBufferDescriptor &vdesc = vb->descriptor();
if (vdesc.name() == "osdPosition")
position = vb;
if (vdesc.name() == "osdNormal")
normal = vb;
}
}
float diffuse[4] = {1, 1, 1, 1};
float ambient[4] = {0.1f, 0.1f, 0.1f, 0.1f};
float specular[4] = {1, 1, 1, 1};
glLightfv(GL_LIGHT0, GL_DIFFUSE, diffuse);
glLightfv(GL_LIGHT0, GL_AMBIENT, ambient);
glLightfv(GL_LIGHT0, GL_SPECULAR, specular);
glPushAttrib(GL_POLYGON_BIT);
glPushAttrib(GL_ENABLE_BIT);
if (_shader->isWireframe()) {
glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
glDisable(GL_LIGHTING);
glDisable(GL_LIGHT0);
} else {
glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
glEnable(GL_LIGHTING);
glEnable(GL_LIGHT0);
}
// draw meshdata
data->prepare();
data->updateGeometry(position, normal);
data->draw();
glPopAttrib();
glPopAttrib();
}
return true;
}
bool
OpenSubdivPtexShaderOverride::draw(
MHWRender::MDrawContext &context,
const MHWRender::MRenderItemList &renderItemList) const
{
{
MHWRender::MStateManager *stateMgr = context.getStateManager();
static const MDepthStencilState * depthState = NULL;
if (!depthState) {
MDepthStencilStateDesc desc;
depthState = stateMgr->acquireDepthStencilState(desc);
}
static const MBlendState *blendState = NULL;
if (!blendState) {
MBlendStateDesc desc;
int ntargets = desc.independentBlendEnable ?
MHWRender::MBlendState::kMaxTargets : 1;
for (int i = 0; i < ntargets; ++i) {
desc.targetBlends[i].blendEnable = false;
}
blendState = stateMgr->acquireBlendState(desc);
}
stateMgr->setDepthStencilState(depthState);
stateMgr->setBlendState(blendState);
}
for (int i = 0; i < renderItemList.length(); i++)
{
const MHWRender::MRenderItem *renderItem = renderItemList.itemAt(i);
OsdPtexMeshData *data =
static_cast<OsdPtexMeshData*>(renderItem->customData());
if (data == NULL) {
return false;
}
// pass attribute values into osdPtexMeshData
data->rebuildHbrMeshIfNeeded(_shader);
const MHWRender::MVertexBuffer *position = NULL, *normal = NULL;
{
const MHWRender::MGeometry *geometry = renderItem->geometry();
for (int i = 0; i < geometry->vertexBufferCount(); i++) {
const MHWRender::MVertexBuffer *vb = geometry->vertexBuffer(i);
const MHWRender::MVertexBufferDescriptor &vdesc = vb->descriptor();
if (vdesc.name() == "osdPosition")
position = vb;
else if (vdesc.name() == "osdNormal")
normal = vb;
}
}
// draw meshdata
data->prepare();
data->updateGeometry(position, normal);
_shader->draw(context, data);
}
return true;
}
//
// #### Override draw method.
//
// Setup draw state and call osdMeshData methods to setup
// and refine geometry. Call to shader to do actual drawing.
//
bool
OpenSubdivShaderOverride::draw(
MHWRender::MDrawContext &context,
const MHWRender::MRenderItemList &renderItemList) const
{
{
MHWRender::MStateManager *stateMgr = context.getStateManager();
static const MDepthStencilState * depthState = NULL;
if (!depthState) {
MDepthStencilStateDesc desc;
depthState = stateMgr->acquireDepthStencilState(desc);
}
static const MBlendState *blendState = NULL;
if (!blendState) {
MBlendStateDesc desc;
int ntargets = desc.independentBlendEnable ?
MHWRender::MBlendState::kMaxTargets : 1;
for (int i = 0; i < ntargets; ++i) {
desc.targetBlends[i].blendEnable = false;
}
blendState = stateMgr->acquireBlendState(desc);
}
stateMgr->setDepthStencilState(depthState);
stateMgr->setBlendState(blendState);
}
for (int i = 0; i < renderItemList.length(); i++)
{
const MHWRender::MRenderItem *renderItem = renderItemList.itemAt(i);
OsdMeshData *data =
static_cast<OsdMeshData*>(renderItem->customData());
if (data == NULL) {
return false;
}
// If attributes or topology have changed which affect
// the HBR mesh it will be regenerated here.
data->rebuildHbrMeshIfNeeded(_shader);
const MHWRender::MVertexBuffer *position = NULL;
{
const MHWRender::MGeometry *geometry = renderItem->geometry();
for (int i = 0; i < geometry->vertexBufferCount(); i++) {
const MHWRender::MVertexBuffer *vb = geometry->vertexBuffer(i);
const MHWRender::MVertexBufferDescriptor &vdesc = vb->descriptor();
if (vdesc.name() == "osdPosition")
position = vb;
}
}
// If HBR mesh was regenerated, rebuild FAR mesh factory
// and recreate OSD draw context
data->prepare();
// Refine geometry
data->updateGeometry(position);
// Draw patches
_shader->draw(context, data);
}
return true;
}