void drawFullScreenRect(RenderingContext & rc){
GET_GL_ERROR();
static Geometry::Matrix4x4f projectionMatrix(Geometry::Matrix4x4f::orthographicProjection(-1, 1, -1, 1, -1, 1));
static Geometry::Matrix4x4f modelViewMatrix;
static Util::Reference<Mesh> mesh;
if(mesh.isNull()) {
VertexDescription vertexDescription;
vertexDescription.appendPosition3D();
vertexDescription.appendTexCoord();
MeshUtils::MeshBuilder mb(vertexDescription);
mb.position(Geometry::Vec3f(-1,-1,0)); mb.texCoord0(Geometry::Vec2f(0,0)); uint32_t a = mb.addVertex();
mb.position(Geometry::Vec3f(1,-1,0)); mb.texCoord0(Geometry::Vec2f(1,0)); uint32_t b = mb.addVertex();
mb.position(Geometry::Vec3f(-1,1,0)); mb.texCoord0(Geometry::Vec2f(0,1)); uint32_t c = mb.addVertex();
mb.position(Geometry::Vec3f(1,1,0)); mb.texCoord0(Geometry::Vec2f(1,1)); uint32_t d = mb.addVertex();
mb.addTriangle(a, b, c);
mb.addTriangle(c, b, d);
mesh = mb.buildMesh();
}
rc.pushMatrix_cameraToClipping();
rc.setMatrix_cameraToClipping(projectionMatrix);
rc.pushMatrix_modelToCamera();
rc.setMatrix_modelToCamera(modelViewMatrix);
rc.displayMesh(mesh.get());
rc.popMatrix_modelToCamera();
rc.popMatrix_cameraToClipping();
GET_GL_ERROR();
}
void drawQuad(RenderingContext & rc, const Geometry::Vec3 & lowerLeft, const Geometry::Vec3 & lowerRight, const Geometry::Vec3 & upperRight,
const Geometry::Vec3 & upperLeft) {
static Util::Reference<Mesh> mesh;
if (mesh.isNull()) {
VertexDescription vertexDescription;
vertexDescription.appendPosition3D();
vertexDescription.appendNormalFloat();
vertexDescription.appendTexCoord();
mesh = new Mesh(vertexDescription, 4, 6);
MeshIndexData & id = mesh->openIndexData();
uint32_t * indices = id.data();
indices[0] = 0;
indices[1] = 1;
indices[2] = 2;
indices[3] = 0;
indices[4] = 2;
indices[5] = 3;
id.updateIndexRange();
id.markAsChanged();
}
const Geometry::Vec3 edgeA = lowerRight - lowerLeft;
const Geometry::Vec3 edgeB = upperLeft - lowerLeft;
Geometry::Vec3 normal = edgeA.cross(edgeB);
normal.normalize();
MeshVertexData & vd = mesh->openVertexData();
float * vertices = reinterpret_cast<float *> (vd.data());
// Lower left
*vertices++ = lowerLeft.getX();
*vertices++ = lowerLeft.getY();
*vertices++ = lowerLeft.getZ();
*vertices++ = normal.getX();
*vertices++ = normal.getY();
*vertices++ = normal.getZ();
*vertices++ = 0.0f;
*vertices++ = 0.0f;
// Lower right
*vertices++ = lowerRight.getX();
*vertices++ = lowerRight.getY();
*vertices++ = lowerRight.getZ();
*vertices++ = normal.getX();
*vertices++ = normal.getY();
*vertices++ = normal.getZ();
*vertices++ = 1.0f;
*vertices++ = 0.0f;
// Upper right
*vertices++ = upperRight.getX();
*vertices++ = upperRight.getY();
*vertices++ = upperRight.getZ();
*vertices++ = normal.getX();
*vertices++ = normal.getY();
*vertices++ = normal.getZ();
*vertices++ = 1.0f;
*vertices++ = 1.0f;
// Upper left
*vertices++ = upperLeft.getX();
*vertices++ = upperLeft.getY();
*vertices++ = upperLeft.getZ();
*vertices++ = normal.getX();
*vertices++ = normal.getY();
*vertices++ = normal.getZ();
*vertices++ = 0.0f;
*vertices++ = 1.0f;
vd.updateBoundingBox();
vd.markAsChanged();
rc.displayMesh(mesh.get());
}
