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Added DebugDrawer::DrawTangents 

Former-commit-id: 9116b5a878752ff193073ac6c156ddca54f8c501
This commit is contained in:
Lynix 2013-01-04 22:02:47 +01:00
parent e00779ebe0
commit 80d4159faa
2 changed files with 69 additions and 0 deletions
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1
include/Nazara/Renderer/DebugDrawer.hpp
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@ -24,6 +24,7 @@ class NAZARA_API NzDebugDrawer
static void Draw(const NzCubeui& cube);
static void Draw(const NzSkeleton* skeleton);
static void DrawNormals(const NzSubMesh* subMesh);
static void DrawTangents(const NzSubMesh* subMesh);
static bool Initialize();

68
src/Nazara/Renderer/DebugDrawer.cpp
View File

@ -301,6 +301,74 @@ void NzDebugDrawer::DrawNormals(const NzSubMesh* subMesh)
}
}
void NzDebugDrawer::DrawTangents(const NzSubMesh* subMesh)
{
if (!initialized)
{
NazaraError("Debug drawer is not initialized");
return;
}
unsigned int tangentCount = subMesh->GetVertexCount();
unsigned int vertexCount = tangentCount*2;
if (vertexBuffer->GetVertexCount() < vertexCount)
{
NazaraError("Debug buffer not length enougth to draw object");
return;
}
NzBufferMapper<NzVertexBuffer> inputMapper(subMesh->GetVertexBuffer(), nzBufferAccess_ReadOnly);
NzBufferMapper<NzVertexBuffer> outputMapper(vertexBuffer, nzBufferAccess_DiscardAndWrite, 0, vertexCount);
NzMeshVertex* inputVertex = reinterpret_cast<NzMeshVertex*>(inputMapper.GetPointer());
NzVertexStruct_XYZ* outputVertex = reinterpret_cast<NzVertexStruct_XYZ*>(outputMapper.GetPointer());
for (unsigned int i = 0; i < tangentCount; ++i)
{
outputVertex->position = inputVertex->position;
outputVertex++;
outputVertex->position = inputVertex->position + inputVertex->tangent;
outputVertex++;
inputVertex++;
}
inputMapper.Unmap();
outputMapper.Unmap();
if (vertexCount > 0)
{
const NzShader* oldShader = NzRenderer::GetShader();
if (!NzRenderer::SetShader(shader))
{
NazaraError("Failed to set debug shader");
return;
}
bool depthTestActive = NzRenderer::IsEnabled(nzRendererParameter_DepthTest);
if (depthTestActive != depthTest)
NzRenderer::Enable(nzRendererParameter_DepthTest, depthTest);
NzRenderer::SetVertexBuffer(vertexBuffer);
float oldLineWidth = NzRenderer::GetLineWidth();
NzRenderer::SetLineWidth(lineWidth);
shader->SendColor(colorLocation, primaryColor);
NzRenderer::DrawPrimitives(nzPrimitiveType_LineList, 0, vertexCount);
NzRenderer::SetLineWidth(oldLineWidth);
if (depthTestActive != depthTest)
NzRenderer::Enable(nzRendererParameter_DepthTest, depthTestActive);
if (!NzRenderer::SetShader(oldShader))
NazaraWarning("Failed to reset shader");
}
}
bool NzDebugDrawer::Initialize()
{
if (!initialized)