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;
}
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;
}
void UsdMayaGLHdRenderer::RenderVp2(
const RequestDataArray &requests,
const MHWRender::MDrawContext& context,
UsdImagingGLRenderParams params) const
{
using namespace MHWRender;
MStatus status;
MHWRender::MRenderer* theRenderer = MHWRender::MRenderer::theRenderer();
if (!theRenderer) return;
MHWRender::MStateManager* stateMgr = context.getStateManager();
if (!stateMgr) return;
const int displayStyle = context.getDisplayStyle();
if (displayStyle == 0) return;
if (displayStyle & MDrawContext::kXray) {
// Viewport 2.0 will call draw() twice when drawing transparent objects
// (X-Ray mode). We skip the first draw() call.
const MRasterizerState* rasterState = stateMgr->getRasterizerState();
if (rasterState && rasterState->desc().cullMode == MRasterizerState::kCullFront) {
return;
}
}
if (!theRenderer->drawAPIIsOpenGL()) return;
glPushAttrib(GL_CURRENT_BIT | GL_LIGHTING_BIT);
const MMatrix worldView =
context.getMatrix(MHWRender::MDrawContext::kWorldViewMtx, &status);
GfMatrix4d modelViewMatrix(worldView.matrix);
const MMatrix projection =
context.getMatrix(MHWRender::MDrawContext::kProjectionMtx, &status);
GfMatrix4d projectionMatrix(projection.matrix);
// get root matrix
MMatrix root = context.getMatrix(MHWRender::MDrawContext::kWorldMtx, &status);
GfMatrix4d rootMatrix(root.matrix);
// Extract camera settings from maya view
int viewX, viewY, viewWidth, viewHeight;
context.getViewportDimensions(viewX, viewY, viewWidth, viewHeight);
GfVec4d viewport(viewX, viewY, viewWidth, viewHeight);
M3dView::DisplayStyle viewDisplayStyle = displayStyle & MDrawContext::kWireFrame ?
M3dView::kWireFrame : M3dView::kGouraudShaded;
if(viewDisplayStyle == M3dView::kGouraudShaded)
{
px_vp20Utils::setupLightingGL(context);
glEnable(GL_LIGHTING);
}
_renderer->SetCameraState(modelViewMatrix, projectionMatrix, viewport);
_renderer->SetLightingStateFromOpenGL();
TF_FOR_ALL(it, requests) {
RequestData request = *it;
if(viewDisplayStyle == M3dView::kWireFrame && request.drawRequest.displayStyle() == M3dView::kGouraudShaded) {
request.drawRequest.setDisplayStyle(viewDisplayStyle);
}
switch(request.drawRequest.token()) {
case UsdMayaGLHdRenderer::DRAW_WIREFRAME:
case UsdMayaGLHdRenderer::DRAW_POINTS: {
params.drawMode = request.drawRequest.token() ==
UsdMayaGLHdRenderer::DRAW_WIREFRAME ?
UsdImagingGLDrawMode::DRAW_WIREFRAME :
UsdImagingGLDrawMode::DRAW_POINTS;
params.enableLighting = false;
params.cullStyle = UsdImagingGLCullStyle::CULL_STYLE_NOTHING;
params.overrideColor = request.fWireframeColor;
// Get and render usdPrim
_renderer->Render(_renderedPrim, params);
break;
}
case UsdMayaGLHdRenderer::DRAW_SHADED_FLAT:
case UsdMayaGLHdRenderer::DRAW_SHADED_SMOOTH: {
params.drawMode = ((request.drawRequest.token() ==
UsdMayaGLHdRenderer::DRAW_SHADED_FLAT) ?
UsdImagingGLDrawMode::DRAW_GEOM_FLAT :
UsdImagingGLDrawMode::DRAW_GEOM_SMOOTH);
params.enableLighting = true;
params.cullStyle =
UsdImagingGLCullStyle::CULL_STYLE_BACK_UNLESS_DOUBLE_SIDED;
_renderer->Render(_renderedPrim, params);
break;
}
case UsdMayaGLHdRenderer::DRAW_BOUNDING_BOX: {
px_vp20Utils::RenderBoundingBox(request.bounds,
request.fWireframeColor,
worldView,
projection);
break;
}
}
}