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wireframe rendering

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Signed-off-by: rhhong <rhhong@amazon.com>
Signed-off-by: Gene Walters <genewalt@amazon.com>
This commit is contained in:
rhhong
2021-10-26 08:14:34 -07:00
committed by Gene Walters
parent 12784c4ada
commit 68d9c05377
2 changed files with 77 additions and 0 deletions
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Gems/AtomLyIntegration/EMotionFXAtom/Code/Source/AtomActorDebugDraw.cpp
+76
View File
@@ -88,6 +88,10 @@ namespace AZ::Render
{
RenderTangents(mesh, globalTM);
}
if (renderWireframe)
{
RenderWireframe(mesh, globalTM);
}
}
}
}
@@ -412,4 +416,76 @@ namespace AZ::Render
lineArgs.m_depthTest = RPI::AuxGeomDraw::DepthTest::Off;
auxGeom->DrawLines(lineArgs);
}
// Render wireframe mesh
void AtomActorDebugDraw::RenderWireframe(EMotionFX::Mesh* mesh, const AZ::Transform& worldTM)
{
// Check if the mesh is valid and skip the node in case it's not
if (!mesh)
{
return;
}
RPI::AuxGeomDrawPtr auxGeom = m_auxGeomFeatureProcessor->GetDrawQueue();
if (!auxGeom)
{
return;
}
PrepareForMesh(mesh, worldTM);
const float scale = 0.01f;
AZ::Vector3* normals = (AZ::Vector3*)mesh->FindVertexData(EMotionFX::Mesh::ATTRIB_NORMALS);
const AZ::Color vertexColor = AZ::Color(0.8f, 0.24f, 0.88f, 1.0f);
const size_t numSubMeshes = mesh->GetNumSubMeshes();
for (uint32 subMeshIndex = 0; subMeshIndex < numSubMeshes; ++subMeshIndex)
{
EMotionFX::SubMesh* subMesh = mesh->GetSubMesh(subMeshIndex);
const uint32 numTriangles = subMesh->GetNumPolygons();
const uint32 startVertex = subMesh->GetStartVertex();
const uint32* indices = subMesh->GetIndices();
m_auxVertices.clear();
m_auxVertices.reserve(numTriangles * 6);
m_auxColors.clear();
m_auxColors.reserve(m_auxVertices.size());
for (uint32 triangleIndex = 0; triangleIndex < numTriangles; ++triangleIndex)
{
const uint32 triangleStartIndex = triangleIndex * 3;
const uint32 indexA = indices[triangleStartIndex + 0] + startVertex;
const uint32 indexB = indices[triangleStartIndex + 1] + startVertex;
const uint32 indexC = indices[triangleStartIndex + 2] + startVertex;
const AZ::Vector3 posA = m_worldSpacePositions[indexA] + normals[indexA] * scale;
const AZ::Vector3 posB = m_worldSpacePositions[indexB] + normals[indexB] * scale;
const AZ::Vector3 posC = m_worldSpacePositions[indexC] + normals[indexC] * scale;
m_auxVertices.emplace_back(posA);
m_auxColors.emplace_back(vertexColor);
m_auxVertices.emplace_back(posB);
m_auxColors.emplace_back(vertexColor);
m_auxVertices.emplace_back(posB);
m_auxColors.emplace_back(vertexColor);
m_auxVertices.emplace_back(posC);
m_auxColors.emplace_back(vertexColor);
m_auxVertices.emplace_back(posC);
m_auxColors.emplace_back(vertexColor);
m_auxVertices.emplace_back(posA);
m_auxColors.emplace_back(vertexColor);
}
}
RPI::AuxGeomDraw::AuxGeomDynamicDrawArguments lineArgs;
lineArgs.m_verts = m_auxVertices.data();
lineArgs.m_vertCount = static_cast<uint32_t>(m_auxVertices.size());
lineArgs.m_colors = m_auxColors.data();
lineArgs.m_colorCount = static_cast<uint32_t>(m_auxColors.size());
lineArgs.m_depthTest = RPI::AuxGeomDraw::DepthTest::Off;
auxGeom->DrawLines(lineArgs);
}
} // namespace AZ::Render
Gems/AtomLyIntegration/EMotionFXAtom/Code/Source/AtomActorDebugDraw.h
+1
View File
@@ -43,6 +43,7 @@ namespace AZ::Render
void RenderEMFXDebugDraw(EMotionFX::ActorInstance* instance);
void RenderNormals(EMotionFX::Mesh* mesh, const AZ::Transform& worldTM, bool vertexNormals, bool faceNormals);
void RenderTangents(EMotionFX::Mesh* mesh, const AZ::Transform& worldTM);
void RenderWireframe(EMotionFX::Mesh* mesh, const AZ::Transform& worldTM);
EMotionFX::Mesh* m_currentMesh = nullptr; /**< A pointer to the mesh whose world space positions are in the pre-calculated positions buffer.
NULL in case we haven't pre-calculated any positions yet. */