// this function is for 32bit indices
void drawElements(
IVideoDriver* driver,
const core::array<video::S3DVertex>& vertices,
const core::array<s32>& indices,
scene::E_PRIMITIVE_TYPE primType)
{
if (!driver)
return;
u32 primCount = 0;
const u32& indexCount = indices.size();
switch (primType)
{
case scene::EPT_POINTS:
primCount = indexCount;
break;
case scene::EPT_LINE_STRIP:
primCount = indexCount-1;
break;
case scene::EPT_LINE_LOOP:
primCount = indexCount-1;
break;
case scene::EPT_LINES:
primCount = indexCount/2;
break;
case scene::EPT_TRIANGLE_STRIP:
primCount = (indexCount-2)/3;
break;
case scene::EPT_TRIANGLE_FAN:
primCount = (indexCount-2)/3;
break;
case scene::EPT_TRIANGLES:
primCount = indexCount/3;
break;
case scene::EPT_QUAD_STRIP:
primCount = (indexCount-2)/4;
break;
case scene::EPT_QUADS:
primCount = indexCount/4;
break;
case scene::EPT_POLYGON:
primCount = indexCount-1;
break;
case scene::EPT_POINT_SPRITES:
primCount = indexCount;
break;
default:
break;
}
driver->drawVertexPrimitiveList( vertices.const_pointer(),
vertices.size(), indices.const_pointer(),
primCount, video::EVT_STANDARD,
primType, video::EIT_32BIT);
}
void CCal3DSceneNode::render()
{
//----------------------------------------------------------//
if ( calModel == 0 )
return; // Make sure there is a model to render
//----------------------------------------------------------//
video::IVideoDriver* driver = SceneManager->getVideoDriver(); // Get the video driver
CalRenderer* renderer = calModel->getRenderer(); // Get the CalRenderer
//----------------------------------------------------------//
// All we're doing here is form a bridge between the CalRenderer and the IVideoDriver
// The CalRenderer gives us data (doesn't draw anything) and IVideoDriver needs that data
// Only problem is that we need to convert it to Irrlicht Compatible data
// To explain what's going on, this simple diagram should help:
// CalRenderer >--GET--> Data >--CONVERT--> Irrlicht Format >--SEND--> IVideoDriver >--DRAW--> ..
//----------------------------------------------------------//
calModel->getSkeleton()->calculateBoundingBoxes(); // Calculate the bounding box of the skeleton
//----------------------------------------------------------//
if ( renderer == 0 )
return; // Bail out if no renderer was received
if ( !renderer->beginRendering() )
return; // Bail out if renderer encountered an error
//----------------------------------------------------------// Move to our position (and rotate/scale)
driver->setTransform( video::ETS_WORLD, AbsoluteTransformation );
//----------------------------------------------------------//
s32 numMeshes = renderer->getMeshCount(); // Get the number of meshes we need to draw
for ( s32 meshId = 0; meshId < numMeshes; meshId++ ) // Loop for every mesh
{
//--------------------------------------------------------//
s32 numSubMeshes = renderer->getSubmeshCount(meshId); // Get the number of submeshes
for ( s32 subId = 0; subId < numSubMeshes; subId++ ) // Loop for every submesh
{
if ( !renderer->selectMeshSubmesh(meshId, subId) ) // Select the current mesh and submesh
{
continue; // Skip this submesh if it failed
}
//------------------------------------------------------//
if ( !OverrideMaterial ) // Should we use Cal3D's material?
{
u8 meshColor [4]; // Color stored in RGBA format
// Irrlicht wants it in ARGB format
renderer->getAmbientColor( meshColor ); // Get the ambient color
Material.AmbientColor.setRed( meshColor[0] ); // Set the red component
Material.AmbientColor.setGreen( meshColor[1] ); // Set the green component
Material.AmbientColor.setBlue( meshColor[2] ); // Set the blue component
Material.AmbientColor.setAlpha( meshColor[3] ); // Set the alpha component
renderer->getDiffuseColor( meshColor ); // Get the diffuse color
Material.DiffuseColor.setRed( meshColor[0] ); // Set the red component
Material.DiffuseColor.setGreen( meshColor[1] ); // Set the green component
Material.DiffuseColor.setBlue( meshColor[2] ); // Set the blue component
Material.DiffuseColor.setAlpha( meshColor[3] ); // Set the alpha component
renderer->getSpecularColor( meshColor ); // Get the specular color
Material.SpecularColor.setRed( meshColor[0] ); // Set the red component
Material.SpecularColor.setGreen( meshColor[1] ); // Set the green component
Material.SpecularColor.setBlue( meshColor[2] ); // Set the blue component
Material.SpecularColor.setAlpha( meshColor[3] ); // Set the alpha component
Material.Shininess = renderer->getShininess(); // Set the shininess factor
if ( renderer->getMapCount() >= 1 )
{ // Get the irrlicht texture from user data
Material.setTexture(0, (video::ITexture*)renderer->getMapUserData(0));
}
}
//------------------------------------------------------//
s32 vertexCount = renderer->getVertexCount(); // Get the number of vertices
if (vertexCount == 0)
continue; // Skip if the mesh is empty
static core::array<core::vector3df> vertexBuffer; // Use a core::array to support msvc
vertexBuffer.set_used( vertexCount ); // Make room for the vertex coordinates
renderer->getVertices( &vertexBuffer[0].X ); // Copy the vertices into the buffer
//------------------------------------------------------//
static core::array<core::vector3df> normalBuffer;
normalBuffer.set_used( vertexCount ); // Buffer for the vertex normals
renderer->getNormals( &normalBuffer[0].X ); // Copy the normals to the buffer
//------------------------------------------------------//
static core::array<core::vector2df> texCoordBuffer;
texCoordBuffer.set_used( vertexCount ); // Buffer for the vertex texture coordinates
renderer->getTextureCoordinates( 0, &texCoordBuffer[0].X );// Copy the texture coordinates to the buffer
//------------------------------------------------------//
s32 faceCount = renderer->getFaceCount(); // Get the number of faces
static CalIndex cal_indices[30000000];
renderer->getFaces( cal_indices ); // Copy the face indices to the buffer
static core::array<u16> faceBuffer;
faceBuffer.set_used( faceCount * 3 ); // Buffer for the face v1,v2,v3 indices
for(int i = 0; i < faceCount * 3; ++i)
{
faceBuffer[i] = cal_indices[i];
}
//------------------------------------------------------//
static core::array<video::S3DVertex> irrVertexBuffer;
irrVertexBuffer.set_used( vertexCount ); // Buffer for the irrlicht vertices
for (s32 vert=0; vert<vertexCount; vert++) // Convert all vertices to irrlicht format
{ // Irrlicht and Cal3D uses different coordinates. Irrlicht's Y points up, where Cal3D's Z points up
irrVertexBuffer[vert].Pos.X = vertexBuffer[vert].X; // Set the X coordinate
irrVertexBuffer[vert].Pos.Y = vertexBuffer[vert].Y; // Set the Y coordinate (Cal3D's Z coord)
irrVertexBuffer[vert].Pos.Z = vertexBuffer[vert].Z; // Set the Z coordinate (Cal3D's Y coord)
irrVertexBuffer[vert].Color.set(255,128,128,128); // Vertex colors aren't supported by Cal3D
irrVertexBuffer[vert].Normal.X = normalBuffer[vert].X;// Set the X coordinate
irrVertexBuffer[vert].Normal.Y = normalBuffer[vert].Y;// Set the Y coordinate (Cal3D's Z coord)
irrVertexBuffer[vert].Normal.Z = normalBuffer[vert].Z;// Set the Z coordinate (Cal3D's Y coord)
irrVertexBuffer[vert].TCoords.X = texCoordBuffer[vert].X;// Set the X texture coordinate (U)
irrVertexBuffer[vert].TCoords.Y = texCoordBuffer[vert].Y;// Set the Y texture coordinate (V)
}
//------------------------------------------------------// Invert triangle direction
for (s32 face=0; face<faceCount; face++) // Irrlicht wants indices in the opposite order
{
u16 faceA = faceBuffer[face*3]; // Swap first and last vertex index
faceBuffer[face*3] = faceBuffer[face*3+2]; // Set the first to the last
faceBuffer[face*3+2] = faceA; // And the last to the first
}
//------------------------------------------------------// Finally! Time to draw everthing
Material.BackfaceCulling = false;
float k;
if(draw_mode != DM_DEFAULT)
{
video::SMaterial debug_material;
debug_material.Wireframe = true;
debug_material.BackfaceCulling = false;
debug_material.Lighting = false;
driver->setMaterial(debug_material);
/* so that debug looks good for all sizes of models*/
k = EXTENT_K * BoundingBox.getExtent().getLength();
}
else
{
driver->setMaterial( Material );
}
if(draw_mode == DM_DEFAULT)
{
driver->drawIndexedTriangleList(irrVertexBuffer.const_pointer(),
vertexCount,
faceBuffer.const_pointer(),
faceCount);
}
else if(draw_mode == DM_WIREFRAME ||
draw_mode == DM_WIREFRAME_AND_SKELETON)
{
/* draw faces */
for (s32 face=0; face<faceCount; ++face)
{
u16 i1, i2, i3;
i1 = faceBuffer[face*3+0];
i2 = faceBuffer[face*3+1];
i3 = faceBuffer[face*3+2];
driver->draw3DLine(core::vector3df(vertexBuffer[i1].X,
vertexBuffer[i1].Y,
vertexBuffer[i1].Z),
core::vector3df(vertexBuffer[i2].X,
vertexBuffer[i2].Y,
vertexBuffer[i2].Z),
video::SColor(255,0,0,255));
driver->draw3DLine(core::vector3df(vertexBuffer[i2].X,
vertexBuffer[i2].Y,
vertexBuffer[i2].Z),
core::vector3df(vertexBuffer[i3].X,
vertexBuffer[i3].Y,
vertexBuffer[i3].Z),
video::SColor(255,0,0,255));
driver->draw3DLine(core::vector3df(vertexBuffer[i3].X,
vertexBuffer[i3].Y,
vertexBuffer[i3].Z),
core::vector3df(vertexBuffer[i1].X,
vertexBuffer[i1].Y,
vertexBuffer[i1].Z),
video::SColor(255,0,0,255));
}
}
if(draw_mode == DM_SKELETON ||
draw_mode == DM_WIREFRAME_AND_SKELETON)
{
float lines[1024][2][3];
int num_lines;
num_lines = calModel->getSkeleton()->getBoneLines(&lines[0][0][0]);
video::S3DVertex vertex;
for(int line = 0; line < num_lines; ++line)
{
driver->draw3DLine(core::vector3df(lines[line][0][0],
lines[line][0][1],
lines[line][0][2]),
core::vector3df(lines[line][1][0],
lines[line][1][1],
lines[line][1][2]),
video::SColor(255,255,0,0));
core::aabbox3df box1(lines[line][0][0]-SKELETON_K*k,
lines[line][0][1]-SKELETON_K*k,
lines[line][0][2]-SKELETON_K*k,
lines[line][0][0]+SKELETON_K*k,
lines[line][0][1]+SKELETON_K*k,
lines[line][0][2]+SKELETON_K*k);
core::aabbox3df box2(lines[line][1][0]-SKELETON_K*k,
lines[line][1][1]-SKELETON_K*k,
lines[line][1][2]-SKELETON_K*k,
lines[line][1][0]+SKELETON_K*k,
lines[line][1][1]+SKELETON_K*k,
lines[line][1][2]+SKELETON_K*k);
driver->draw3DBox(box1, video::SColor(255,0,255,0));
driver->draw3DBox(box2, video::SColor(255,0,255,0));
}
}
if(draw_bbox)
{
video::SMaterial debug_material;
debug_material.Wireframe = true;
debug_material.BackfaceCulling = false;
debug_material.Lighting = false;
driver->setMaterial(debug_material);
driver->draw3DBox(BoundingBox, video::SColor(255,255,0,255));
}
if(draw_normals)
{
k = EXTENT_K * BoundingBox.getExtent().getLength();
video::SMaterial debug_material;
debug_material.Wireframe = true;
debug_material.BackfaceCulling = false;
debug_material.Lighting = false;
driver->setMaterial(debug_material);
/* draw normals */
for (s32 vert=0; vert<vertexCount; ++vert)
{
driver->draw3DLine(core::vector3df(vertexBuffer[vert].X,
vertexBuffer[vert].Y,
vertexBuffer[vert].Z),
core::vector3df(vertexBuffer[vert].X + NORMAL_K*k*normalBuffer[vert].X,
vertexBuffer[vert].Y + NORMAL_K*k*normalBuffer[vert].Y,
vertexBuffer[vert].Z + NORMAL_K*k*normalBuffer[vert].Z),
video::SColor(255,0,255,0));
}
}
} // for subId
} // for meshId
//----------------------------------------------------------//
renderer->endRendering(); // Tell the renderer we are finished now
}