void ComponentDrawCamera::draw (CameraObject* camera)
{
CameraObject *placeable = checkedCast<CameraObject*>(getOwner());
if (!placeable)
return;
_line_material.setBlendEnable(false);
_line_material.setDepthEnable(true);
_line_material.setCullMode(DT3GL_CULL_NONE);
_line_material.setColor(_color);
_line_material.setShader(ShaderResource::getShader(FilePath("{editorline.shdr}")));
DrawBatcher b;
b.batchBegin(&_line_material, placeable->getTransform(), DrawBatcher::BATCH_LINES, DrawBatcher::FMT_V);
// Can
for (DTuint i = 0; i < ARRAY_SIZE(can); ++i) {
b.vertex( Vector3(THICKNESS, can[i].x, can[i].y) );
b.vertex( Vector3(-THICKNESS, can[i].x, can[i].y) );
}
for (DTuint i = 0; i < ARRAY_SIZE(can)-1; ++i) {
b.vertex( Vector3(THICKNESS, can[i].x, can[i].y) );
b.vertex( Vector3(THICKNESS, can[i+1].x, can[i+1].y) );
b.vertex( Vector3(-THICKNESS, can[i].x, can[i].y) );
b.vertex( Vector3(-THICKNESS, can[i+1].x, can[i+1].y) );
}
// Box
for (DTuint i = 0; i < ARRAY_SIZE(box); ++i) {
b.vertex( Vector3(THICKNESS, box[i].x, box[i].y) );
b.vertex( Vector3(-THICKNESS, box[i].x, box[i].y) );
}
for (DTuint i = 0; i < ARRAY_SIZE(box)-1; ++i) {
b.vertex( Vector3(THICKNESS, box[i].x, box[i].y) );
b.vertex( Vector3(THICKNESS, box[i+1].x, box[i+1].y) );
b.vertex( Vector3(-THICKNESS, box[i].x, box[i].y) );
b.vertex( Vector3(-THICKNESS, box[i+1].x, box[i+1].y) );
}
// Side
for (DTuint i = 0; i < ARRAY_SIZE(side); ++i) {
b.vertex( Vector3(THICKNESS, side[i].x, side[i].y) );
b.vertex( Vector3(SIDE_THICKNESS+THICKNESS, side[i].x, side[i].y) );
}
for (DTuint i = 0; i < ARRAY_SIZE(side)-1; ++i) {
b.vertex( Vector3(THICKNESS, side[i].x, side[i].y) );
b.vertex( Vector3(THICKNESS, side[i+1].x, side[i+1].y) );
b.vertex( Vector3(SIDE_THICKNESS+THICKNESS, side[i].x, side[i].y) );
b.vertex( Vector3(SIDE_THICKNESS+THICKNESS, side[i+1].x, side[i+1].y) );
}
// Lens
for (DTuint i = 0; i < ARRAY_SIZE(lens); ++i) {
b.vertex( Vector3(LENS_THICKNESS, lens[i].x, lens[i].y) );
b.vertex( Vector3(-LENS_THICKNESS, lens[i].x, lens[i].y) );
}
for (DTuint i = 0; i < ARRAY_SIZE(lens)-1; ++i) {
b.vertex( Vector3(LENS_THICKNESS, lens[i].x, lens[i].y) );
b.vertex( Vector3(LENS_THICKNESS, lens[i+1].x, lens[i+1].y) );
b.vertex( Vector3(-LENS_THICKNESS, lens[i].x, lens[i].y) );
b.vertex( Vector3(-LENS_THICKNESS, lens[i+1].x, lens[i+1].y) );
}
b.batchEnd();
b.flush();
// Frustum
placeable->calculateFrustum();
Matrix4 projection_inv = placeable->getProjection().inversed();
Vector3 near_p0, near_p1, near_p2, near_p3;
Vector3 far_p0, far_p1, far_p2, far_p3;
MATTransform4H(projection_inv, Vector3(-1.0F,-1.0F,-1.0F), near_p0);
MATTransform4H(projection_inv, Vector3(1.0F,-1.0F,-1.0F), near_p1);
MATTransform4H(projection_inv, Vector3(1.0F,1.0F,-1.0F), near_p2);
MATTransform4H(projection_inv, Vector3(-1.0F,1.0F,-1.0F), near_p3);
MATTransform4H(projection_inv, Vector3(-1.0F,-1.0F,1.0F), far_p0);
MATTransform4H(projection_inv, Vector3(1.0F,-1.0F,1.0F), far_p1);
MATTransform4H(projection_inv, Vector3(1.0F,1.0F,1.0F), far_p2);
MATTransform4H(projection_inv, Vector3(-1.0F,1.0F,1.0F), far_p3);
b.batchBegin (&_line_material, placeable->getTransform(), DrawBatcher::BATCH_LINE_LOOP, DrawBatcher::FMT_V);
b.vertex ( near_p0);
b.vertex ( near_p1);
b.vertex ( near_p2);
b.vertex ( near_p3);
b.batchEnd();
b.flush();
b.batchBegin (&_line_material, placeable->getTransform(), DrawBatcher::BATCH_LINE_LOOP, DrawBatcher::FMT_V);
b.vertex ( far_p0);
b.vertex ( far_p1);
b.vertex ( far_p2);
b.vertex ( far_p3);
b.batchEnd();
b.flush();
b.batchBegin (&_line_material, placeable->getTransform(), DrawBatcher::BATCH_LINE_LOOP, DrawBatcher::FMT_V);
b.vertex ( near_p0);
b.vertex ( near_p1);
b.vertex ( far_p1);
b.vertex ( far_p0);
b.batchEnd();
b.flush();
b.batchBegin (&_line_material, placeable->getTransform(), DrawBatcher::BATCH_LINE_LOOP, DrawBatcher::FMT_V);
b.vertex ( near_p2);
b.vertex ( near_p3);
b.vertex ( far_p3);
b.vertex ( far_p2);
b.batchEnd();
b.flush();
}
